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author | Michaël Zasso <targos@protonmail.com> | 2019-08-01 08:38:30 +0200 |
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committer | Michaël Zasso <targos@protonmail.com> | 2019-08-01 12:53:56 +0200 |
commit | 2dcc3665abf57c3607cebffdeeca062f5894885d (patch) | |
tree | 4f560748132edcfb4c22d6f967a7e80d23d7ea2c /deps/v8/src/api.cc | |
parent | 1ee47d550c6de132f06110aa13eceb7551d643b3 (diff) | |
download | android-node-v8-2dcc3665abf57c3607cebffdeeca062f5894885d.tar.gz android-node-v8-2dcc3665abf57c3607cebffdeeca062f5894885d.tar.bz2 android-node-v8-2dcc3665abf57c3607cebffdeeca062f5894885d.zip |
deps: update V8 to 7.6.303.28
PR-URL: https://github.com/nodejs/node/pull/28016
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Diffstat (limited to 'deps/v8/src/api.cc')
-rw-r--r-- | deps/v8/src/api.cc | 10815 |
1 files changed, 0 insertions, 10815 deletions
diff --git a/deps/v8/src/api.cc b/deps/v8/src/api.cc deleted file mode 100644 index dc92ff2e79..0000000000 --- a/deps/v8/src/api.cc +++ /dev/null @@ -1,10815 +0,0 @@ -// Copyright 2012 the V8 project authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "src/api.h" - -#include <string.h> // For memcpy, strlen. -#include <cmath> // For isnan. -#include <limits> -#include <vector> - -#include "src/api-inl.h" - -#include "include/v8-profiler.h" -#include "include/v8-testing.h" -#include "include/v8-util.h" -#include "src/accessors.h" -#include "src/api-natives.h" -#include "src/assert-scope.h" -#include "src/base/functional.h" -#include "src/base/logging.h" -#include "src/base/platform/platform.h" -#include "src/base/platform/time.h" -#include "src/base/safe_conversions.h" -#include "src/base/utils/random-number-generator.h" -#include "src/bootstrapper.h" -#include "src/builtins/builtins-utils.h" -#include "src/char-predicates-inl.h" -#include "src/compiler-dispatcher/compiler-dispatcher.h" -#include "src/compiler.h" -#include "src/contexts.h" -#include "src/conversions-inl.h" -#include "src/counters.h" -#include "src/cpu-features.h" -#include "src/date.h" -#include "src/debug/debug-coverage.h" -#include "src/debug/debug-evaluate.h" -#include "src/debug/debug-type-profile.h" -#include "src/debug/debug.h" -#include "src/debug/liveedit.h" -#include "src/deoptimizer.h" -#include "src/detachable-vector.h" -#include "src/execution.h" -#include "src/frames-inl.h" -#include "src/gdb-jit.h" -#include "src/global-handles.h" -#include "src/globals.h" -#include "src/heap/heap-inl.h" -#include "src/icu_util.h" -#include "src/isolate-inl.h" -#include "src/json-parser.h" -#include "src/json-stringifier.h" -#include "src/messages.h" -#include "src/microtask-queue.h" -#include "src/objects-inl.h" -#include "src/objects/api-callbacks.h" -#include "src/objects/embedder-data-array-inl.h" -#include "src/objects/embedder-data-slot-inl.h" -#include "src/objects/frame-array-inl.h" -#include "src/objects/hash-table-inl.h" -#include "src/objects/heap-object.h" -#include "src/objects/js-array-inl.h" -#include "src/objects/js-collection-inl.h" -#include "src/objects/js-generator-inl.h" -#include "src/objects/js-promise-inl.h" -#include "src/objects/js-regexp-inl.h" -#include "src/objects/module-inl.h" -#include "src/objects/oddball.h" -#include "src/objects/ordered-hash-table-inl.h" -#include "src/objects/slots.h" -#include "src/objects/smi.h" -#include "src/objects/stack-frame-info-inl.h" -#include "src/objects/templates.h" -#include "src/parsing/parse-info.h" -#include "src/parsing/parser.h" -#include "src/parsing/scanner-character-streams.h" -#include "src/pending-compilation-error-handler.h" -#include "src/profiler/cpu-profiler.h" -#include "src/profiler/heap-profiler.h" -#include "src/profiler/heap-snapshot-generator-inl.h" -#include "src/profiler/profile-generator-inl.h" -#include "src/profiler/tick-sample.h" -#include "src/property-descriptor.h" -#include "src/property-details.h" -#include "src/property.h" -#include "src/prototype.h" -#include "src/runtime-profiler.h" -#include "src/runtime/runtime.h" -#include "src/simulator.h" -#include "src/snapshot/code-serializer.h" -#include "src/snapshot/natives.h" -#include "src/snapshot/partial-serializer.h" -#include "src/snapshot/read-only-serializer.h" -#include "src/snapshot/snapshot.h" -#include "src/snapshot/startup-serializer.h" -#include "src/startup-data-util.h" -#include "src/string-hasher.h" -#include "src/tracing/trace-event.h" -#include "src/trap-handler/trap-handler.h" -#include "src/unicode-inl.h" -#include "src/v8.h" -#include "src/v8threads.h" -#include "src/value-serializer.h" -#include "src/version.h" -#include "src/vm-state-inl.h" -#include "src/wasm/streaming-decoder.h" -#include "src/wasm/wasm-engine.h" -#include "src/wasm/wasm-objects-inl.h" -#include "src/wasm/wasm-result.h" -#include "src/wasm/wasm-serialization.h" - -#if V8_OS_LINUX || V8_OS_MACOSX -#include <signal.h> -#include "include/v8-wasm-trap-handler-posix.h" -#include "src/trap-handler/handler-inside-posix.h" -#endif - -#if V8_OS_WIN -#include <versionhelpers.h> -#include <windows.h> -#include "include/v8-wasm-trap-handler-win.h" -#include "src/trap-handler/handler-inside-win.h" -#if V8_TARGET_ARCH_X64 -#include "src/unwinding-info-win64.h" -#endif // V8_TARGET_ARCH_X64 -#endif // V8_OS_WIN - -namespace v8 { - -/* - * Most API methods should use one of the three macros: - * - * ENTER_V8, ENTER_V8_NO_SCRIPT, ENTER_V8_NO_SCRIPT_NO_EXCEPTION. - * - * The latter two assume that no script is executed, and no exceptions are - * scheduled in addition (respectively). Creating a pending exception and - * removing it before returning is ok. - * - * Exceptions should be handled either by invoking one of the - * RETURN_ON_FAILED_EXECUTION* macros. - * - * Don't use macros with DO_NOT_USE in their name. - * - * TODO(jochen): Document debugger specific macros. - * TODO(jochen): Document LOG_API and other RuntimeCallStats macros. - * TODO(jochen): All API methods should invoke one of the ENTER_V8* macros. - * TODO(jochen): Remove calls form API methods to DO_NOT_USE macros. - */ - -#define LOG_API(isolate, class_name, function_name) \ - i::RuntimeCallTimerScope _runtime_timer( \ - isolate, i::RuntimeCallCounterId::kAPI_##class_name##_##function_name); \ - LOG(isolate, ApiEntryCall("v8::" #class_name "::" #function_name)) - -#define ENTER_V8_DO_NOT_USE(isolate) i::VMState<v8::OTHER> __state__((isolate)) - -#define ENTER_V8_HELPER_DO_NOT_USE(isolate, context, class_name, \ - function_name, bailout_value, \ - HandleScopeClass, do_callback) \ - if (IsExecutionTerminatingCheck(isolate)) { \ - return bailout_value; \ - } \ - HandleScopeClass handle_scope(isolate); \ - CallDepthScope<do_callback> call_depth_scope(isolate, context); \ - LOG_API(isolate, class_name, function_name); \ - i::VMState<v8::OTHER> __state__((isolate)); \ - bool has_pending_exception = false - -#define PREPARE_FOR_DEBUG_INTERFACE_EXECUTION_WITH_ISOLATE(isolate, T) \ - if (IsExecutionTerminatingCheck(isolate)) { \ - return MaybeLocal<T>(); \ - } \ - InternalEscapableScope handle_scope(isolate); \ - CallDepthScope<false> call_depth_scope(isolate, v8::Local<v8::Context>()); \ - i::VMState<v8::OTHER> __state__((isolate)); \ - bool has_pending_exception = false - -#define PREPARE_FOR_EXECUTION_WITH_CONTEXT(context, class_name, function_name, \ - bailout_value, HandleScopeClass, \ - do_callback) \ - auto isolate = context.IsEmpty() \ - ? i::Isolate::Current() \ - : reinterpret_cast<i::Isolate*>(context->GetIsolate()); \ - ENTER_V8_HELPER_DO_NOT_USE(isolate, context, class_name, function_name, \ - bailout_value, HandleScopeClass, do_callback); - -#define PREPARE_FOR_EXECUTION(context, class_name, function_name, T) \ - PREPARE_FOR_EXECUTION_WITH_CONTEXT(context, class_name, function_name, \ - MaybeLocal<T>(), InternalEscapableScope, \ - false) - -#define ENTER_V8(isolate, context, class_name, function_name, bailout_value, \ - HandleScopeClass) \ - ENTER_V8_HELPER_DO_NOT_USE(isolate, context, class_name, function_name, \ - bailout_value, HandleScopeClass, true) - -#ifdef DEBUG -#define ENTER_V8_NO_SCRIPT(isolate, context, class_name, function_name, \ - bailout_value, HandleScopeClass) \ - ENTER_V8_HELPER_DO_NOT_USE(isolate, context, class_name, function_name, \ - bailout_value, HandleScopeClass, false); \ - i::DisallowJavascriptExecutionDebugOnly __no_script__((isolate)) - -#define ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate) \ - i::VMState<v8::OTHER> __state__((isolate)); \ - i::DisallowJavascriptExecutionDebugOnly __no_script__((isolate)); \ - i::DisallowExceptions __no_exceptions__((isolate)) - -#define ENTER_V8_FOR_NEW_CONTEXT(isolate) \ - i::VMState<v8::OTHER> __state__((isolate)); \ - i::DisallowExceptions __no_exceptions__((isolate)) -#else -#define ENTER_V8_NO_SCRIPT(isolate, context, class_name, function_name, \ - bailout_value, HandleScopeClass) \ - ENTER_V8_HELPER_DO_NOT_USE(isolate, context, class_name, function_name, \ - bailout_value, HandleScopeClass, false) - -#define ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate) \ - i::VMState<v8::OTHER> __state__((isolate)); - -#define ENTER_V8_FOR_NEW_CONTEXT(isolate) \ - i::VMState<v8::OTHER> __state__((isolate)); -#endif // DEBUG - -#define EXCEPTION_BAILOUT_CHECK_SCOPED_DO_NOT_USE(isolate, value) \ - do { \ - if (has_pending_exception) { \ - call_depth_scope.Escape(); \ - return value; \ - } \ - } while (false) - -#define RETURN_ON_FAILED_EXECUTION(T) \ - EXCEPTION_BAILOUT_CHECK_SCOPED_DO_NOT_USE(isolate, MaybeLocal<T>()) - -#define RETURN_ON_FAILED_EXECUTION_PRIMITIVE(T) \ - EXCEPTION_BAILOUT_CHECK_SCOPED_DO_NOT_USE(isolate, Nothing<T>()) - -#define RETURN_TO_LOCAL_UNCHECKED(maybe_local, T) \ - return maybe_local.FromMaybe(Local<T>()); - - -#define RETURN_ESCAPED(value) return handle_scope.Escape(value); - -namespace { - -Local<Context> ContextFromNeverReadOnlySpaceObject( - i::Handle<i::JSReceiver> obj) { - return reinterpret_cast<v8::Isolate*>(obj->GetIsolate())->GetCurrentContext(); -} - -class InternalEscapableScope : public v8::EscapableHandleScope { - public: - explicit inline InternalEscapableScope(i::Isolate* isolate) - : v8::EscapableHandleScope(reinterpret_cast<v8::Isolate*>(isolate)) {} -}; - -// TODO(jochen): This should be #ifdef DEBUG -#ifdef V8_CHECK_MICROTASKS_SCOPES_CONSISTENCY -void CheckMicrotasksScopesConsistency(i::MicrotaskQueue* microtask_queue) { - if (microtask_queue && - microtask_queue->microtasks_policy() == v8::MicrotasksPolicy::kScoped) { - DCHECK(microtask_queue->GetMicrotasksScopeDepth() || - !microtask_queue->DebugMicrotasksScopeDepthIsZero()); - } -} -#endif - -template <bool do_callback> -class CallDepthScope { - public: - explicit CallDepthScope(i::Isolate* isolate, Local<Context> context) - : isolate_(isolate), - context_(context), - escaped_(false), - safe_for_termination_(isolate->next_v8_call_is_safe_for_termination()), - interrupts_scope_(isolate_, i::StackGuard::TERMINATE_EXECUTION, - isolate_->only_terminate_in_safe_scope() - ? (safe_for_termination_ - ? i::InterruptsScope::kRunInterrupts - : i::InterruptsScope::kPostponeInterrupts) - : i::InterruptsScope::kNoop) { - isolate_->handle_scope_implementer()->IncrementCallDepth(); - isolate_->set_next_v8_call_is_safe_for_termination(false); - if (!context.IsEmpty()) { - i::Handle<i::Context> env = Utils::OpenHandle(*context); - i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); - if (!isolate->context().is_null() && - isolate->context()->native_context() == env->native_context()) { - context_ = Local<Context>(); - } else { - impl->SaveContext(isolate->context()); - isolate->set_context(*env); - } - } - if (do_callback) isolate_->FireBeforeCallEnteredCallback(); - } - ~CallDepthScope() { - i::MicrotaskQueue* microtask_queue = isolate_->default_microtask_queue(); - if (!context_.IsEmpty()) { - i::HandleScopeImplementer* impl = isolate_->handle_scope_implementer(); - isolate_->set_context(impl->RestoreContext()); - - i::Handle<i::Context> env = Utils::OpenHandle(*context_); - microtask_queue = env->native_context()->microtask_queue(); - } - if (!escaped_) isolate_->handle_scope_implementer()->DecrementCallDepth(); - if (do_callback) isolate_->FireCallCompletedCallback(microtask_queue); -// TODO(jochen): This should be #ifdef DEBUG -#ifdef V8_CHECK_MICROTASKS_SCOPES_CONSISTENCY - if (do_callback) CheckMicrotasksScopesConsistency(microtask_queue); -#endif - isolate_->set_next_v8_call_is_safe_for_termination(safe_for_termination_); - } - - void Escape() { - DCHECK(!escaped_); - escaped_ = true; - auto handle_scope_implementer = isolate_->handle_scope_implementer(); - handle_scope_implementer->DecrementCallDepth(); - bool clear_exception = - handle_scope_implementer->CallDepthIsZero() && - isolate_->thread_local_top()->try_catch_handler_ == nullptr; - isolate_->OptionalRescheduleException(clear_exception); - } - - private: - i::Isolate* const isolate_; - Local<Context> context_; - bool escaped_; - bool do_callback_; - bool safe_for_termination_; - i::InterruptsScope interrupts_scope_; -}; - -} // namespace - - -static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate, - i::Handle<i::Script> script) { - i::Handle<i::Object> scriptName(script->GetNameOrSourceURL(), isolate); - i::Handle<i::Object> source_map_url(script->source_mapping_url(), isolate); - i::Handle<i::FixedArray> host_defined_options(script->host_defined_options(), - isolate); - v8::Isolate* v8_isolate = reinterpret_cast<v8::Isolate*>(isolate); - ScriptOriginOptions options(script->origin_options()); - v8::ScriptOrigin origin( - Utils::ToLocal(scriptName), - v8::Integer::New(v8_isolate, script->line_offset()), - v8::Integer::New(v8_isolate, script->column_offset()), - v8::Boolean::New(v8_isolate, options.IsSharedCrossOrigin()), - v8::Integer::New(v8_isolate, script->id()), - Utils::ToLocal(source_map_url), - v8::Boolean::New(v8_isolate, options.IsOpaque()), - v8::Boolean::New(v8_isolate, script->type() == i::Script::TYPE_WASM), - v8::Boolean::New(v8_isolate, options.IsModule()), - Utils::ToLocal(host_defined_options)); - return origin; -} - - -// --- E x c e p t i o n B e h a v i o r --- - -void i::FatalProcessOutOfMemory(i::Isolate* isolate, const char* location) { - i::V8::FatalProcessOutOfMemory(isolate, location, false); -} - -// When V8 cannot allocate memory FatalProcessOutOfMemory is called. The default -// OOM error handler is called and execution is stopped. -void i::V8::FatalProcessOutOfMemory(i::Isolate* isolate, const char* location, - bool is_heap_oom) { - char last_few_messages[Heap::kTraceRingBufferSize + 1]; - char js_stacktrace[Heap::kStacktraceBufferSize + 1]; - i::HeapStats heap_stats; - - if (isolate == nullptr) { - isolate = Isolate::TryGetCurrent(); - } - - if (isolate == nullptr) { - // If the Isolate is not available for the current thread we cannot retrieve - // memory information from the Isolate. Write easy-to-recognize values on - // the stack. - memset(last_few_messages, 0x0BADC0DE, Heap::kTraceRingBufferSize + 1); - memset(js_stacktrace, 0x0BADC0DE, Heap::kStacktraceBufferSize + 1); - memset(&heap_stats, 0xBADC0DE, sizeof(heap_stats)); - // Note that the embedder's oom handler is also not available and therefore - // won't be called in this case. We just crash. - FATAL("Fatal process out of memory: %s", location); - UNREACHABLE(); - } - - memset(last_few_messages, 0, Heap::kTraceRingBufferSize + 1); - memset(js_stacktrace, 0, Heap::kStacktraceBufferSize + 1); - - intptr_t start_marker; - heap_stats.start_marker = &start_marker; - size_t ro_space_size; - heap_stats.ro_space_size = &ro_space_size; - size_t ro_space_capacity; - heap_stats.ro_space_capacity = &ro_space_capacity; - size_t new_space_size; - heap_stats.new_space_size = &new_space_size; - size_t new_space_capacity; - heap_stats.new_space_capacity = &new_space_capacity; - size_t old_space_size; - heap_stats.old_space_size = &old_space_size; - size_t old_space_capacity; - heap_stats.old_space_capacity = &old_space_capacity; - size_t code_space_size; - heap_stats.code_space_size = &code_space_size; - size_t code_space_capacity; - heap_stats.code_space_capacity = &code_space_capacity; - size_t map_space_size; - heap_stats.map_space_size = &map_space_size; - size_t map_space_capacity; - heap_stats.map_space_capacity = &map_space_capacity; - size_t lo_space_size; - heap_stats.lo_space_size = &lo_space_size; - size_t code_lo_space_size; - heap_stats.code_lo_space_size = &code_lo_space_size; - size_t global_handle_count; - heap_stats.global_handle_count = &global_handle_count; - size_t weak_global_handle_count; - heap_stats.weak_global_handle_count = &weak_global_handle_count; - size_t pending_global_handle_count; - heap_stats.pending_global_handle_count = &pending_global_handle_count; - size_t near_death_global_handle_count; - heap_stats.near_death_global_handle_count = &near_death_global_handle_count; - size_t free_global_handle_count; - heap_stats.free_global_handle_count = &free_global_handle_count; - size_t memory_allocator_size; - heap_stats.memory_allocator_size = &memory_allocator_size; - size_t memory_allocator_capacity; - heap_stats.memory_allocator_capacity = &memory_allocator_capacity; - size_t malloced_memory; - heap_stats.malloced_memory = &malloced_memory; - size_t malloced_peak_memory; - heap_stats.malloced_peak_memory = &malloced_peak_memory; - size_t objects_per_type[LAST_TYPE + 1] = {0}; - heap_stats.objects_per_type = objects_per_type; - size_t size_per_type[LAST_TYPE + 1] = {0}; - heap_stats.size_per_type = size_per_type; - int os_error; - heap_stats.os_error = &os_error; - heap_stats.last_few_messages = last_few_messages; - heap_stats.js_stacktrace = js_stacktrace; - intptr_t end_marker; - heap_stats.end_marker = &end_marker; - if (isolate->heap()->HasBeenSetUp()) { - // BUG(1718): Don't use the take_snapshot since we don't support - // HeapIterator here without doing a special GC. - isolate->heap()->RecordStats(&heap_stats, false); - char* first_newline = strchr(last_few_messages, '\n'); - if (first_newline == nullptr || first_newline[1] == '\0') - first_newline = last_few_messages; - PrintF("\n<--- Last few GCs --->\n%s\n", first_newline); - PrintF("\n<--- JS stacktrace --->\n%s\n", js_stacktrace); - } - Utils::ReportOOMFailure(isolate, location, is_heap_oom); - // If the fatal error handler returns, we stop execution. - FATAL("API fatal error handler returned after process out of memory"); -} - - -void Utils::ReportApiFailure(const char* location, const char* message) { - i::Isolate* isolate = i::Isolate::Current(); - FatalErrorCallback callback = nullptr; - if (isolate != nullptr) { - callback = isolate->exception_behavior(); - } - if (callback == nullptr) { - base::OS::PrintError("\n#\n# Fatal error in %s\n# %s\n#\n\n", location, - message); - base::OS::Abort(); - } else { - callback(location, message); - } - isolate->SignalFatalError(); -} - -void Utils::ReportOOMFailure(i::Isolate* isolate, const char* location, - bool is_heap_oom) { - OOMErrorCallback oom_callback = isolate->oom_behavior(); - if (oom_callback == nullptr) { - // TODO(wfh): Remove this fallback once Blink is setting OOM handler. See - // crbug.com/614440. - FatalErrorCallback fatal_callback = isolate->exception_behavior(); - if (fatal_callback == nullptr) { - base::OS::PrintError("\n#\n# Fatal %s OOM in %s\n#\n\n", - is_heap_oom ? "javascript" : "process", location); - base::OS::Abort(); - } else { - fatal_callback(location, - is_heap_oom - ? "Allocation failed - JavaScript heap out of memory" - : "Allocation failed - process out of memory"); - } - } else { - oom_callback(location, is_heap_oom); - } - isolate->SignalFatalError(); -} - -static inline bool IsExecutionTerminatingCheck(i::Isolate* isolate) { - if (isolate->has_scheduled_exception()) { - return isolate->scheduled_exception() == - i::ReadOnlyRoots(isolate).termination_exception(); - } - return false; -} - - -void V8::SetNativesDataBlob(StartupData* natives_blob) { - i::V8::SetNativesBlob(natives_blob); -} - - -void V8::SetSnapshotDataBlob(StartupData* snapshot_blob) { - i::V8::SetSnapshotBlob(snapshot_blob); -} - -namespace { - -class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { - public: - void* Allocate(size_t length) override { -#if V8_OS_AIX && _LINUX_SOURCE_COMPAT - // Work around for GCC bug on AIX - // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 - void* data = __linux_calloc(length, 1); -#else - void* data = calloc(length, 1); -#endif - return data; - } - - void* AllocateUninitialized(size_t length) override { -#if V8_OS_AIX && _LINUX_SOURCE_COMPAT - // Work around for GCC bug on AIX - // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 - void* data = __linux_malloc(length); -#else - void* data = malloc(length); -#endif - return data; - } - - void Free(void* data, size_t) override { free(data); } -}; - -struct SnapshotCreatorData { - explicit SnapshotCreatorData(Isolate* isolate) - : isolate_(isolate), - default_context_(), - contexts_(isolate), - created_(false) {} - - static SnapshotCreatorData* cast(void* data) { - return reinterpret_cast<SnapshotCreatorData*>(data); - } - - ArrayBufferAllocator allocator_; - Isolate* isolate_; - Persistent<Context> default_context_; - SerializeInternalFieldsCallback default_embedder_fields_serializer_; - PersistentValueVector<Context> contexts_; - std::vector<SerializeInternalFieldsCallback> embedder_fields_serializers_; - bool created_; -}; - -} // namespace - -SnapshotCreator::SnapshotCreator(Isolate* isolate, - const intptr_t* external_references, - StartupData* existing_snapshot) { - SnapshotCreatorData* data = new SnapshotCreatorData(isolate); - data->isolate_ = isolate; - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - internal_isolate->set_array_buffer_allocator(&data->allocator_); - internal_isolate->set_api_external_references(external_references); - internal_isolate->enable_serializer(); - isolate->Enter(); - const StartupData* blob = existing_snapshot - ? existing_snapshot - : i::Snapshot::DefaultSnapshotBlob(); - if (blob && blob->raw_size > 0) { - internal_isolate->set_snapshot_blob(blob); - i::Snapshot::Initialize(internal_isolate); - } else { - internal_isolate->InitWithoutSnapshot(); - } - data_ = data; -} - -SnapshotCreator::SnapshotCreator(const intptr_t* external_references, - StartupData* existing_snapshot) - : SnapshotCreator(Isolate::Allocate(), external_references, - existing_snapshot) {} - -SnapshotCreator::~SnapshotCreator() { - SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); - DCHECK(data->created_); - Isolate* isolate = data->isolate_; - isolate->Exit(); - isolate->Dispose(); - delete data; -} - -Isolate* SnapshotCreator::GetIsolate() { - return SnapshotCreatorData::cast(data_)->isolate_; -} - -void SnapshotCreator::SetDefaultContext( - Local<Context> context, SerializeInternalFieldsCallback callback) { - DCHECK(!context.IsEmpty()); - SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); - DCHECK(!data->created_); - DCHECK(data->default_context_.IsEmpty()); - Isolate* isolate = data->isolate_; - CHECK_EQ(isolate, context->GetIsolate()); - data->default_context_.Reset(isolate, context); - data->default_embedder_fields_serializer_ = callback; -} - -size_t SnapshotCreator::AddContext(Local<Context> context, - SerializeInternalFieldsCallback callback) { - DCHECK(!context.IsEmpty()); - SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); - DCHECK(!data->created_); - Isolate* isolate = data->isolate_; - CHECK_EQ(isolate, context->GetIsolate()); - size_t index = data->contexts_.Size(); - data->contexts_.Append(context); - data->embedder_fields_serializers_.push_back(callback); - return index; -} - -size_t SnapshotCreator::AddTemplate(Local<Template> template_obj) { - return AddData(template_obj); -} - -size_t SnapshotCreator::AddData(i::Address object) { - DCHECK_NE(object, i::kNullAddress); - SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); - DCHECK(!data->created_); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(data->isolate_); - i::HandleScope scope(isolate); - i::Handle<i::Object> obj(i::Object(object), isolate); - i::Handle<i::ArrayList> list; - if (!isolate->heap()->serialized_objects()->IsArrayList()) { - list = i::ArrayList::New(isolate, 1); - } else { - list = i::Handle<i::ArrayList>( - i::ArrayList::cast(isolate->heap()->serialized_objects()), isolate); - } - size_t index = static_cast<size_t>(list->Length()); - list = i::ArrayList::Add(isolate, list, obj); - isolate->heap()->SetSerializedObjects(*list); - return index; -} - -size_t SnapshotCreator::AddData(Local<Context> context, i::Address object) { - DCHECK_NE(object, i::kNullAddress); - DCHECK(!SnapshotCreatorData::cast(data_)->created_); - i::Handle<i::Context> ctx = Utils::OpenHandle(*context); - i::Isolate* isolate = ctx->GetIsolate(); - i::HandleScope scope(isolate); - i::Handle<i::Object> obj(i::Object(object), isolate); - i::Handle<i::ArrayList> list; - if (!ctx->serialized_objects()->IsArrayList()) { - list = i::ArrayList::New(isolate, 1); - } else { - list = i::Handle<i::ArrayList>( - i::ArrayList::cast(ctx->serialized_objects()), isolate); - } - size_t index = static_cast<size_t>(list->Length()); - list = i::ArrayList::Add(isolate, list, obj); - ctx->set_serialized_objects(*list); - return index; -} - -namespace { -void ConvertSerializedObjectsToFixedArray(Local<Context> context) { - i::Handle<i::Context> ctx = Utils::OpenHandle(*context); - i::Isolate* isolate = ctx->GetIsolate(); - if (!ctx->serialized_objects()->IsArrayList()) { - ctx->set_serialized_objects(i::ReadOnlyRoots(isolate).empty_fixed_array()); - } else { - i::Handle<i::ArrayList> list(i::ArrayList::cast(ctx->serialized_objects()), - isolate); - i::Handle<i::FixedArray> elements = i::ArrayList::Elements(isolate, list); - ctx->set_serialized_objects(*elements); - } -} - -void ConvertSerializedObjectsToFixedArray(i::Isolate* isolate) { - if (!isolate->heap()->serialized_objects()->IsArrayList()) { - isolate->heap()->SetSerializedObjects( - i::ReadOnlyRoots(isolate).empty_fixed_array()); - } else { - i::Handle<i::ArrayList> list( - i::ArrayList::cast(isolate->heap()->serialized_objects()), isolate); - i::Handle<i::FixedArray> elements = i::ArrayList::Elements(isolate, list); - isolate->heap()->SetSerializedObjects(*elements); - } -} -} // anonymous namespace - -StartupData SnapshotCreator::CreateBlob( - SnapshotCreator::FunctionCodeHandling function_code_handling) { - SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(data->isolate_); - DCHECK(!data->created_); - DCHECK(!data->default_context_.IsEmpty()); - - int num_additional_contexts = static_cast<int>(data->contexts_.Size()); - - { - i::HandleScope scope(isolate); - // Convert list of context-independent data to FixedArray. - ConvertSerializedObjectsToFixedArray(isolate); - - // Convert lists of context-dependent data to FixedArray. - ConvertSerializedObjectsToFixedArray( - data->default_context_.Get(data->isolate_)); - for (int i = 0; i < num_additional_contexts; i++) { - ConvertSerializedObjectsToFixedArray(data->contexts_.Get(i)); - } - - // We need to store the global proxy size upfront in case we need the - // bootstrapper to create a global proxy before we deserialize the context. - i::Handle<i::FixedArray> global_proxy_sizes = - isolate->factory()->NewFixedArray(num_additional_contexts, - i::AllocationType::kOld); - for (int i = 0; i < num_additional_contexts; i++) { - i::Handle<i::Context> context = - v8::Utils::OpenHandle(*data->contexts_.Get(i)); - global_proxy_sizes->set(i, - i::Smi::FromInt(context->global_proxy()->Size())); - } - isolate->heap()->SetSerializedGlobalProxySizes(*global_proxy_sizes); - } - - // We might rehash strings and re-sort descriptors. Clear the lookup cache. - isolate->descriptor_lookup_cache()->Clear(); - - // If we don't do this then we end up with a stray root pointing at the - // context even after we have disposed of the context. - isolate->heap()->CollectAllAvailableGarbage( - i::GarbageCollectionReason::kSnapshotCreator); - { - i::HandleScope scope(isolate); - isolate->heap()->CompactWeakArrayLists(internal::AllocationType::kOld); - } - - isolate->heap()->read_only_space()->ClearStringPaddingIfNeeded(); - - if (function_code_handling == FunctionCodeHandling::kClear) { - // Clear out re-compilable data from all shared function infos. Any - // JSFunctions using these SFIs will have their code pointers reset by the - // partial serializer. - // - // We have to iterate the heap and collect handles to each clearable SFI, - // before we disable allocation, since we have to allocate UncompiledDatas - // to be able to recompile them. - // - // Compiled irregexp code is also flushed by collecting and clearing any - // seen JSRegExp objects. - i::HandleScope scope(isolate); - std::vector<i::Handle<i::SharedFunctionInfo>> sfis_to_clear; - - { // Heap allocation is disallowed within this scope. - i::HeapIterator heap_iterator(isolate->heap()); - for (i::HeapObject current_obj = heap_iterator.next(); - !current_obj.is_null(); current_obj = heap_iterator.next()) { - if (current_obj->IsSharedFunctionInfo()) { - i::SharedFunctionInfo shared = - i::SharedFunctionInfo::cast(current_obj); - if (shared->CanDiscardCompiled()) { - sfis_to_clear.emplace_back(shared, isolate); - } - } else if (current_obj->IsJSRegExp()) { - i::JSRegExp regexp = i::JSRegExp::cast(current_obj); - if (regexp->HasCompiledCode()) { - regexp->DiscardCompiledCodeForSerialization(); - } - } - } - } - - // Must happen after heap iteration since SFI::DiscardCompiled may allocate. - for (i::Handle<i::SharedFunctionInfo> shared : sfis_to_clear) { - i::SharedFunctionInfo::DiscardCompiled(isolate, shared); - } - } - - i::DisallowHeapAllocation no_gc_from_here_on; - - int num_contexts = num_additional_contexts + 1; - std::vector<i::Context> contexts; - contexts.reserve(num_contexts); - { - i::HandleScope scope(isolate); - contexts.push_back( - *v8::Utils::OpenHandle(*data->default_context_.Get(data->isolate_))); - data->default_context_.Reset(); - for (int i = 0; i < num_additional_contexts; i++) { - i::Handle<i::Context> context = - v8::Utils::OpenHandle(*data->contexts_.Get(i)); - contexts.push_back(*context); - } - data->contexts_.Clear(); - } - - // Check that values referenced by global/eternal handles are accounted for. - i::SerializedHandleChecker handle_checker(isolate, &contexts); - CHECK(handle_checker.CheckGlobalAndEternalHandles()); - - i::HeapIterator heap_iterator(isolate->heap()); - for (i::HeapObject current_obj = heap_iterator.next(); !current_obj.is_null(); - current_obj = heap_iterator.next()) { - if (current_obj->IsJSFunction()) { - i::JSFunction fun = i::JSFunction::cast(current_obj); - - // Complete in-object slack tracking for all functions. - fun->CompleteInobjectSlackTrackingIfActive(); - - // Also, clear out feedback vectors, or any optimized code. - if (!fun->raw_feedback_cell()->value()->IsUndefined()) { - fun->raw_feedback_cell()->set_value( - i::ReadOnlyRoots(isolate).undefined_value()); - fun->set_code(isolate->builtins()->builtin(i::Builtins::kCompileLazy)); - } - if (function_code_handling == FunctionCodeHandling::kClear) { - DCHECK(fun->shared()->HasWasmExportedFunctionData() || - fun->shared()->HasBuiltinId() || - fun->shared()->IsApiFunction() || - fun->shared()->HasUncompiledDataWithoutPreparseData()); - } - } - } - - i::ReadOnlySerializer read_only_serializer(isolate); - read_only_serializer.SerializeReadOnlyRoots(); - - i::StartupSerializer startup_serializer(isolate, &read_only_serializer); - startup_serializer.SerializeStrongReferences(); - - // Serialize each context with a new partial serializer. - std::vector<i::SnapshotData*> context_snapshots; - context_snapshots.reserve(num_contexts); - - // TODO(6593): generalize rehashing, and remove this flag. - bool can_be_rehashed = true; - - for (int i = 0; i < num_contexts; i++) { - bool is_default_context = i == 0; - i::PartialSerializer partial_serializer( - isolate, &startup_serializer, - is_default_context ? data->default_embedder_fields_serializer_ - : data->embedder_fields_serializers_[i - 1]); - partial_serializer.Serialize(&contexts[i], !is_default_context); - can_be_rehashed = can_be_rehashed && partial_serializer.can_be_rehashed(); - context_snapshots.push_back(new i::SnapshotData(&partial_serializer)); - } - - startup_serializer.SerializeWeakReferencesAndDeferred(); - can_be_rehashed = can_be_rehashed && startup_serializer.can_be_rehashed(); - - read_only_serializer.FinalizeSerialization(); - can_be_rehashed = can_be_rehashed && read_only_serializer.can_be_rehashed(); - - i::SnapshotData read_only_snapshot(&read_only_serializer); - i::SnapshotData startup_snapshot(&startup_serializer); - StartupData result = - i::Snapshot::CreateSnapshotBlob(&startup_snapshot, &read_only_snapshot, - context_snapshots, can_be_rehashed); - - // Delete heap-allocated context snapshot instances. - for (const auto context_snapshot : context_snapshots) { - delete context_snapshot; - } - data->created_ = true; - - DCHECK(i::Snapshot::VerifyChecksum(&result)); - return result; -} - -bool StartupData::CanBeRehashed() const { - DCHECK(i::Snapshot::VerifyChecksum(this)); - return i::Snapshot::ExtractRehashability(this); -} - -void V8::SetDcheckErrorHandler(DcheckErrorCallback that) { - v8::base::SetDcheckFunction(that); -} - -void V8::SetFlagsFromString(const char* str, int length) { - i::FlagList::SetFlagsFromString(str, length); - i::FlagList::EnforceFlagImplications(); -} - - -void V8::SetFlagsFromCommandLine(int* argc, char** argv, bool remove_flags) { - i::FlagList::SetFlagsFromCommandLine(argc, argv, remove_flags); -} - -RegisteredExtension* RegisteredExtension::first_extension_ = nullptr; - -RegisteredExtension::RegisteredExtension(std::unique_ptr<Extension> extension) - : extension_(std::move(extension)) {} - -// static -void RegisteredExtension::Register(std::unique_ptr<Extension> extension) { - RegisteredExtension* new_extension = - new RegisteredExtension(std::move(extension)); - new_extension->next_ = first_extension_; - first_extension_ = new_extension; -} - -// static -void RegisteredExtension::UnregisterAll() { - RegisteredExtension* re = first_extension_; - while (re != nullptr) { - RegisteredExtension* next = re->next(); - delete re; - re = next; - } - first_extension_ = nullptr; -} - -namespace { -class ExtensionResource : public String::ExternalOneByteStringResource { - public: - ExtensionResource() : data_(nullptr), length_(0) {} - ExtensionResource(const char* data, size_t length) - : data_(data), length_(length) {} - const char* data() const override { return data_; } - size_t length() const override { return length_; } - void Dispose() override {} - - private: - const char* data_; - size_t length_; -}; -} // anonymous namespace - -void RegisterExtension(std::unique_ptr<Extension> extension) { - RegisteredExtension::Register(std::move(extension)); -} - -Extension::Extension(const char* name, - const char* source, - int dep_count, - const char** deps, - int source_length) - : name_(name), - source_length_(source_length >= 0 ? - source_length : - (source ? static_cast<int>(strlen(source)) : 0)), - dep_count_(dep_count), - deps_(deps), - auto_enable_(false) { - source_ = new ExtensionResource(source, source_length_); - CHECK(source != nullptr || source_length_ == 0); -} - -ResourceConstraints::ResourceConstraints() - : max_semi_space_size_in_kb_(0), - max_old_space_size_(0), - stack_limit_(nullptr), - code_range_size_(0), - max_zone_pool_size_(0) {} - -void ResourceConstraints::ConfigureDefaults(uint64_t physical_memory, - uint64_t virtual_memory_limit) { - set_max_semi_space_size_in_kb( - i::Heap::ComputeMaxSemiSpaceSize(physical_memory)); - set_max_old_space_size(i::Heap::ComputeMaxOldGenerationSize(physical_memory)); - - if (virtual_memory_limit > 0 && i::kRequiresCodeRange) { - // Reserve no more than 1/8 of the memory for the code range, but at most - // kMaximalCodeRangeSize. - set_code_range_size( - i::Min(i::kMaximalCodeRangeSize / i::MB, - static_cast<size_t>((virtual_memory_limit >> 3) / i::MB))); - } -} - -void SetResourceConstraints(i::Isolate* isolate, - const ResourceConstraints& constraints) { - size_t semi_space_size = constraints.max_semi_space_size_in_kb(); - size_t old_space_size = constraints.max_old_space_size(); - size_t code_range_size = constraints.code_range_size(); - if (semi_space_size != 0 || old_space_size != 0 || code_range_size != 0) { - isolate->heap()->ConfigureHeap(semi_space_size, old_space_size, - code_range_size); - } - - if (constraints.stack_limit() != nullptr) { - uintptr_t limit = reinterpret_cast<uintptr_t>(constraints.stack_limit()); - isolate->stack_guard()->SetStackLimit(limit); - } -} - -i::Address* V8::GlobalizeReference(i::Isolate* isolate, i::Address* obj) { - LOG_API(isolate, Persistent, New); - i::Handle<i::Object> result = isolate->global_handles()->Create(*obj); -#ifdef VERIFY_HEAP - if (i::FLAG_verify_heap) { - i::Object(*obj)->ObjectVerify(isolate); - } -#endif // VERIFY_HEAP - return result.location(); -} - -i::Address* V8::GlobalizeTracedReference(i::Isolate* isolate, i::Address* obj, - internal::Address* slot) { - LOG_API(isolate, TracedGlobal, New); - i::Handle<i::Object> result = - isolate->global_handles()->CreateTraced(*obj, slot); -#ifdef VERIFY_HEAP - if (i::FLAG_verify_heap) { - i::Object(*obj)->ObjectVerify(isolate); - } -#endif // VERIFY_HEAP - return result.location(); -} - -i::Address* V8::CopyGlobalReference(i::Address* from) { - i::Handle<i::Object> result = i::GlobalHandles::CopyGlobal(from); - return result.location(); -} - -void V8::MoveGlobalReference(internal::Address** from, internal::Address** to) { - i::GlobalHandles::MoveGlobal(from, to); -} - -void V8::MoveTracedGlobalReference(internal::Address** from, - internal::Address** to) { - i::GlobalHandles::MoveTracedGlobal(from, to); -} - -void V8::RegisterExternallyReferencedObject(i::Address* location, - i::Isolate* isolate) { - isolate->heap()->RegisterExternallyReferencedObject(location); -} - -void V8::MakeWeak(i::Address* location, void* parameter, - WeakCallbackInfo<void>::Callback weak_callback, - WeakCallbackType type) { - i::GlobalHandles::MakeWeak(location, parameter, weak_callback, type); -} - -void V8::MakeWeak(i::Address** location_addr) { - i::GlobalHandles::MakeWeak(location_addr); -} - -void* V8::ClearWeak(i::Address* location) { - return i::GlobalHandles::ClearWeakness(location); -} - -void V8::AnnotateStrongRetainer(i::Address* location, const char* label) { - i::GlobalHandles::AnnotateStrongRetainer(location, label); -} - -void V8::DisposeGlobal(i::Address* location) { - i::GlobalHandles::Destroy(location); -} - -void V8::DisposeTracedGlobal(internal::Address* location) { - i::GlobalHandles::DestroyTraced(location); -} - -void V8::SetFinalizationCallbackTraced( - internal::Address* location, void* parameter, - WeakCallbackInfo<void>::Callback callback) { - i::GlobalHandles::SetFinalizationCallbackForTraced(location, parameter, - callback); -} - -Value* V8::Eternalize(Isolate* v8_isolate, Value* value) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::Object object = *Utils::OpenHandle(value); - int index = -1; - isolate->eternal_handles()->Create(isolate, object, &index); - return reinterpret_cast<Value*>( - isolate->eternal_handles()->Get(index).location()); -} - - -void V8::FromJustIsNothing() { - Utils::ApiCheck(false, "v8::FromJust", "Maybe value is Nothing."); -} - - -void V8::ToLocalEmpty() { - Utils::ApiCheck(false, "v8::ToLocalChecked", "Empty MaybeLocal."); -} - -void V8::InternalFieldOutOfBounds(int index) { - Utils::ApiCheck(0 <= index && index < kInternalFieldsInWeakCallback, - "WeakCallbackInfo::GetInternalField", - "Internal field out of bounds."); -} - - -// --- H a n d l e s --- - - -HandleScope::HandleScope(Isolate* isolate) { - Initialize(isolate); -} - - -void HandleScope::Initialize(Isolate* isolate) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - // We do not want to check the correct usage of the Locker class all over the - // place, so we do it only here: Without a HandleScope, an embedder can do - // almost nothing, so it is enough to check in this central place. - // We make an exception if the serializer is enabled, which means that the - // Isolate is exclusively used to create a snapshot. - Utils::ApiCheck( - !v8::Locker::IsActive() || - internal_isolate->thread_manager()->IsLockedByCurrentThread() || - internal_isolate->serializer_enabled(), - "HandleScope::HandleScope", - "Entering the V8 API without proper locking in place"); - i::HandleScopeData* current = internal_isolate->handle_scope_data(); - isolate_ = internal_isolate; - prev_next_ = current->next; - prev_limit_ = current->limit; - current->level++; -} - - -HandleScope::~HandleScope() { - i::HandleScope::CloseScope(isolate_, prev_next_, prev_limit_); -} - -void* HandleScope::operator new(size_t) { base::OS::Abort(); } -void* HandleScope::operator new[](size_t) { base::OS::Abort(); } -void HandleScope::operator delete(void*, size_t) { base::OS::Abort(); } -void HandleScope::operator delete[](void*, size_t) { base::OS::Abort(); } - -int HandleScope::NumberOfHandles(Isolate* isolate) { - return i::HandleScope::NumberOfHandles( - reinterpret_cast<i::Isolate*>(isolate)); -} - -i::Address* HandleScope::CreateHandle(i::Isolate* isolate, i::Address value) { - return i::HandleScope::CreateHandle(isolate, value); -} - -EscapableHandleScope::EscapableHandleScope(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - escape_slot_ = - CreateHandle(isolate, i::ReadOnlyRoots(isolate).the_hole_value()->ptr()); - Initialize(v8_isolate); -} - -i::Address* EscapableHandleScope::Escape(i::Address* escape_value) { - i::Heap* heap = reinterpret_cast<i::Isolate*>(GetIsolate())->heap(); - Utils::ApiCheck(i::Object(*escape_slot_)->IsTheHole(heap->isolate()), - "EscapableHandleScope::Escape", "Escape value set twice"); - if (escape_value == nullptr) { - *escape_slot_ = i::ReadOnlyRoots(heap).undefined_value()->ptr(); - return nullptr; - } - *escape_slot_ = *escape_value; - return escape_slot_; -} - -void* EscapableHandleScope::operator new(size_t) { base::OS::Abort(); } -void* EscapableHandleScope::operator new[](size_t) { base::OS::Abort(); } -void EscapableHandleScope::operator delete(void*, size_t) { base::OS::Abort(); } -void EscapableHandleScope::operator delete[](void*, size_t) { - base::OS::Abort(); -} - -SealHandleScope::SealHandleScope(Isolate* isolate) - : isolate_(reinterpret_cast<i::Isolate*>(isolate)) { - i::HandleScopeData* current = isolate_->handle_scope_data(); - prev_limit_ = current->limit; - current->limit = current->next; - prev_sealed_level_ = current->sealed_level; - current->sealed_level = current->level; -} - - -SealHandleScope::~SealHandleScope() { - i::HandleScopeData* current = isolate_->handle_scope_data(); - DCHECK_EQ(current->next, current->limit); - current->limit = prev_limit_; - DCHECK_EQ(current->level, current->sealed_level); - current->sealed_level = prev_sealed_level_; -} - -void* SealHandleScope::operator new(size_t) { base::OS::Abort(); } -void* SealHandleScope::operator new[](size_t) { base::OS::Abort(); } -void SealHandleScope::operator delete(void*, size_t) { base::OS::Abort(); } -void SealHandleScope::operator delete[](void*, size_t) { base::OS::Abort(); } - -void Context::Enter() { - i::Handle<i::Context> env = Utils::OpenHandle(this); - i::Isolate* isolate = env->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); - impl->EnterContext(*env); - impl->SaveContext(isolate->context()); - isolate->set_context(*env); -} - -void Context::Exit() { - i::Handle<i::Context> env = Utils::OpenHandle(this); - i::Isolate* isolate = env->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); - if (!Utils::ApiCheck(impl->LastEnteredContextWas(*env), "v8::Context::Exit()", - "Cannot exit non-entered context")) { - return; - } - impl->LeaveContext(); - isolate->set_context(impl->RestoreContext()); -} - -Context::BackupIncumbentScope::BackupIncumbentScope( - Local<Context> backup_incumbent_context) - : backup_incumbent_context_(backup_incumbent_context) { - DCHECK(!backup_incumbent_context_.IsEmpty()); - - i::Handle<i::Context> env = Utils::OpenHandle(*backup_incumbent_context_); - i::Isolate* isolate = env->GetIsolate(); - - js_stack_comparable_address_ = - i::SimulatorStack::RegisterJSStackComparableAddress(isolate); - - prev_ = isolate->top_backup_incumbent_scope(); - isolate->set_top_backup_incumbent_scope(this); -} - -Context::BackupIncumbentScope::~BackupIncumbentScope() { - i::Handle<i::Context> env = Utils::OpenHandle(*backup_incumbent_context_); - i::Isolate* isolate = env->GetIsolate(); - - i::SimulatorStack::UnregisterJSStackComparableAddress(isolate); - - isolate->set_top_backup_incumbent_scope(prev_); -} - -STATIC_ASSERT(i::Internals::kEmbedderDataSlotSize == i::kEmbedderDataSlotSize); - -static i::Handle<i::EmbedderDataArray> EmbedderDataFor(Context* context, - int index, bool can_grow, - const char* location) { - i::Handle<i::Context> env = Utils::OpenHandle(context); - i::Isolate* isolate = env->GetIsolate(); - bool ok = - Utils::ApiCheck(env->IsNativeContext(), - location, - "Not a native context") && - Utils::ApiCheck(index >= 0, location, "Negative index"); - if (!ok) return i::Handle<i::EmbedderDataArray>(); - // TODO(ishell): remove cast once embedder_data slot has a proper type. - i::Handle<i::EmbedderDataArray> data( - i::EmbedderDataArray::cast(env->embedder_data()), isolate); - if (index < data->length()) return data; - if (!Utils::ApiCheck(can_grow && index < i::EmbedderDataArray::kMaxLength, - location, "Index too large")) { - return i::Handle<i::EmbedderDataArray>(); - } - data = i::EmbedderDataArray::EnsureCapacity(isolate, data, index); - env->set_embedder_data(*data); - return data; -} - -uint32_t Context::GetNumberOfEmbedderDataFields() { - i::Handle<i::Context> context = Utils::OpenHandle(this); - CHECK(context->IsNativeContext()); - // TODO(ishell): remove cast once embedder_data slot has a proper type. - return static_cast<uint32_t>( - i::EmbedderDataArray::cast(context->embedder_data())->length()); -} - -v8::Local<v8::Value> Context::SlowGetEmbedderData(int index) { - const char* location = "v8::Context::GetEmbedderData()"; - i::Handle<i::EmbedderDataArray> data = - EmbedderDataFor(this, index, false, location); - if (data.is_null()) return Local<Value>(); - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::Handle<i::Object> result(i::EmbedderDataSlot(*data, index).load_tagged(), - isolate); - return Utils::ToLocal(result); -} - - -void Context::SetEmbedderData(int index, v8::Local<Value> value) { - const char* location = "v8::Context::SetEmbedderData()"; - i::Handle<i::EmbedderDataArray> data = - EmbedderDataFor(this, index, true, location); - if (data.is_null()) return; - i::Handle<i::Object> val = Utils::OpenHandle(*value); - i::EmbedderDataSlot::store_tagged(*data, index, *val); - DCHECK_EQ(*Utils::OpenHandle(*value), - *Utils::OpenHandle(*GetEmbedderData(index))); -} - - -void* Context::SlowGetAlignedPointerFromEmbedderData(int index) { - const char* location = "v8::Context::GetAlignedPointerFromEmbedderData()"; - i::Handle<i::EmbedderDataArray> data = - EmbedderDataFor(this, index, false, location); - if (data.is_null()) return nullptr; - void* result; - Utils::ApiCheck(i::EmbedderDataSlot(*data, index).ToAlignedPointer(&result), - location, "Pointer is not aligned"); - return result; -} - - -void Context::SetAlignedPointerInEmbedderData(int index, void* value) { - const char* location = "v8::Context::SetAlignedPointerInEmbedderData()"; - i::Handle<i::EmbedderDataArray> data = - EmbedderDataFor(this, index, true, location); - bool ok = i::EmbedderDataSlot(*data, index).store_aligned_pointer(value); - Utils::ApiCheck(ok, location, "Pointer is not aligned"); - DCHECK_EQ(value, GetAlignedPointerFromEmbedderData(index)); -} - - -// --- T e m p l a t e --- - - -static void InitializeTemplate(i::Handle<i::TemplateInfo> that, int type) { - that->set_number_of_properties(0); - that->set_tag(i::Smi::FromInt(type)); -} - - -void Template::Set(v8::Local<Name> name, v8::Local<Data> value, - v8::PropertyAttribute attribute) { - auto templ = Utils::OpenHandle(this); - i::Isolate* isolate = templ->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto value_obj = Utils::OpenHandle(*value); - CHECK(!value_obj->IsJSReceiver() || value_obj->IsTemplateInfo()); - if (value_obj->IsObjectTemplateInfo()) { - templ->set_serial_number(i::Smi::kZero); - if (templ->IsFunctionTemplateInfo()) { - i::Handle<i::FunctionTemplateInfo>::cast(templ)->set_do_not_cache(true); - } - } - i::ApiNatives::AddDataProperty(isolate, templ, Utils::OpenHandle(*name), - value_obj, - static_cast<i::PropertyAttributes>(attribute)); -} - -void Template::SetPrivate(v8::Local<Private> name, v8::Local<Data> value, - v8::PropertyAttribute attribute) { - Set(Utils::ToLocal(Utils::OpenHandle(reinterpret_cast<Name*>(*name))), value, - attribute); -} - -void Template::SetAccessorProperty( - v8::Local<v8::Name> name, - v8::Local<FunctionTemplate> getter, - v8::Local<FunctionTemplate> setter, - v8::PropertyAttribute attribute, - v8::AccessControl access_control) { - // TODO(verwaest): Remove |access_control|. - DCHECK_EQ(v8::DEFAULT, access_control); - auto templ = Utils::OpenHandle(this); - auto isolate = templ->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - DCHECK(!name.IsEmpty()); - DCHECK(!getter.IsEmpty() || !setter.IsEmpty()); - i::HandleScope scope(isolate); - i::ApiNatives::AddAccessorProperty( - isolate, templ, Utils::OpenHandle(*name), - Utils::OpenHandle(*getter, true), Utils::OpenHandle(*setter, true), - static_cast<i::PropertyAttributes>(attribute)); -} - - -// --- F u n c t i o n T e m p l a t e --- -static void InitializeFunctionTemplate( - i::Handle<i::FunctionTemplateInfo> info) { - InitializeTemplate(info, Consts::FUNCTION_TEMPLATE); - info->set_flag(0); -} - -static Local<ObjectTemplate> ObjectTemplateNew( - i::Isolate* isolate, v8::Local<FunctionTemplate> constructor, - bool do_not_cache); - -Local<ObjectTemplate> FunctionTemplate::PrototypeTemplate() { - i::Isolate* i_isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Object> result(Utils::OpenHandle(this)->GetPrototypeTemplate(), - i_isolate); - if (result->IsUndefined(i_isolate)) { - // Do not cache prototype objects. - result = Utils::OpenHandle( - *ObjectTemplateNew(i_isolate, Local<FunctionTemplate>(), true)); - i::FunctionTemplateInfo::SetPrototypeTemplate( - i_isolate, Utils::OpenHandle(this), result); - } - return ToApiHandle<ObjectTemplate>(result); -} - -void FunctionTemplate::SetPrototypeProviderTemplate( - Local<FunctionTemplate> prototype_provider) { - i::Isolate* i_isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Object> result = Utils::OpenHandle(*prototype_provider); - auto info = Utils::OpenHandle(this); - CHECK(info->GetPrototypeTemplate()->IsUndefined(i_isolate)); - CHECK(info->GetParentTemplate()->IsUndefined(i_isolate)); - i::FunctionTemplateInfo::SetPrototypeProviderTemplate(i_isolate, info, - result); -} - -static void EnsureNotInstantiated(i::Handle<i::FunctionTemplateInfo> info, - const char* func) { - Utils::ApiCheck(!info->instantiated(), func, - "FunctionTemplate already instantiated"); -} - - -void FunctionTemplate::Inherit(v8::Local<FunctionTemplate> value) { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::Inherit"); - i::Isolate* i_isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - CHECK(info->GetPrototypeProviderTemplate()->IsUndefined(i_isolate)); - i::FunctionTemplateInfo::SetParentTemplate(i_isolate, info, - Utils::OpenHandle(*value)); -} - -static Local<FunctionTemplate> FunctionTemplateNew( - i::Isolate* isolate, FunctionCallback callback, v8::Local<Value> data, - v8::Local<Signature> signature, int length, bool do_not_cache, - v8::Local<Private> cached_property_name = v8::Local<Private>(), - SideEffectType side_effect_type = SideEffectType::kHasSideEffect) { - i::Handle<i::Struct> struct_obj = isolate->factory()->NewStruct( - i::FUNCTION_TEMPLATE_INFO_TYPE, i::AllocationType::kOld); - i::Handle<i::FunctionTemplateInfo> obj = - i::Handle<i::FunctionTemplateInfo>::cast(struct_obj); - InitializeFunctionTemplate(obj); - obj->set_do_not_cache(do_not_cache); - int next_serial_number = i::FunctionTemplateInfo::kInvalidSerialNumber; - if (!do_not_cache) { - next_serial_number = isolate->heap()->GetNextTemplateSerialNumber(); - } - obj->set_serial_number(i::Smi::FromInt(next_serial_number)); - if (callback != nullptr) { - Utils::ToLocal(obj)->SetCallHandler(callback, data, side_effect_type); - } - obj->set_length(length); - obj->set_undetectable(false); - obj->set_needs_access_check(false); - obj->set_accept_any_receiver(true); - if (!signature.IsEmpty()) { - obj->set_signature(*Utils::OpenHandle(*signature)); - } - obj->set_cached_property_name( - cached_property_name.IsEmpty() - ? i::ReadOnlyRoots(isolate).the_hole_value() - : *Utils::OpenHandle(*cached_property_name)); - return Utils::ToLocal(obj); -} - -Local<FunctionTemplate> FunctionTemplate::New( - Isolate* isolate, FunctionCallback callback, v8::Local<Value> data, - v8::Local<Signature> signature, int length, ConstructorBehavior behavior, - SideEffectType side_effect_type) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - // Changes to the environment cannot be captured in the snapshot. Expect no - // function templates when the isolate is created for serialization. - LOG_API(i_isolate, FunctionTemplate, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - auto templ = FunctionTemplateNew(i_isolate, callback, data, signature, length, - false, Local<Private>(), side_effect_type); - if (behavior == ConstructorBehavior::kThrow) templ->RemovePrototype(); - return templ; -} - -MaybeLocal<FunctionTemplate> FunctionTemplate::FromSnapshot(Isolate* isolate, - size_t index) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::FixedArray serialized_objects = i_isolate->heap()->serialized_objects(); - int int_index = static_cast<int>(index); - if (int_index < serialized_objects->length()) { - i::Object info = serialized_objects->get(int_index); - if (info->IsFunctionTemplateInfo()) { - return Utils::ToLocal(i::Handle<i::FunctionTemplateInfo>( - i::FunctionTemplateInfo::cast(info), i_isolate)); - } - } - return Local<FunctionTemplate>(); -} - -Local<FunctionTemplate> FunctionTemplate::NewWithCache( - Isolate* isolate, FunctionCallback callback, Local<Private> cache_property, - Local<Value> data, Local<Signature> signature, int length, - SideEffectType side_effect_type) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, FunctionTemplate, NewWithCache); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - return FunctionTemplateNew(i_isolate, callback, data, signature, length, - false, cache_property, side_effect_type); -} - -Local<Signature> Signature::New(Isolate* isolate, - Local<FunctionTemplate> receiver) { - return Utils::SignatureToLocal(Utils::OpenHandle(*receiver)); -} - - -Local<AccessorSignature> AccessorSignature::New( - Isolate* isolate, Local<FunctionTemplate> receiver) { - return Utils::AccessorSignatureToLocal(Utils::OpenHandle(*receiver)); -} - -#define SET_FIELD_WRAPPED(isolate, obj, setter, cdata) \ - do { \ - i::Handle<i::Object> foreign = FromCData(isolate, cdata); \ - (obj)->setter(*foreign); \ - } while (false) - -void FunctionTemplate::SetCallHandler(FunctionCallback callback, - v8::Local<Value> data, - SideEffectType side_effect_type) { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::SetCallHandler"); - i::Isolate* isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - i::Handle<i::CallHandlerInfo> obj = isolate->factory()->NewCallHandlerInfo( - side_effect_type == SideEffectType::kHasNoSideEffect); - SET_FIELD_WRAPPED(isolate, obj, set_callback, callback); - SET_FIELD_WRAPPED(isolate, obj, set_js_callback, obj->redirected_callback()); - if (data.IsEmpty()) { - data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - obj->set_data(*Utils::OpenHandle(*data)); - info->set_call_code(*obj); -} - - -namespace { - -template <typename Getter, typename Setter> -i::Handle<i::AccessorInfo> MakeAccessorInfo( - i::Isolate* isolate, v8::Local<Name> name, Getter getter, Setter setter, - v8::Local<Value> data, v8::AccessControl settings, - v8::Local<AccessorSignature> signature, bool is_special_data_property, - bool replace_on_access) { - i::Handle<i::AccessorInfo> obj = isolate->factory()->NewAccessorInfo(); - SET_FIELD_WRAPPED(isolate, obj, set_getter, getter); - DCHECK_IMPLIES(replace_on_access, - is_special_data_property && setter == nullptr); - if (is_special_data_property && setter == nullptr) { - setter = reinterpret_cast<Setter>(&i::Accessors::ReconfigureToDataProperty); - } - SET_FIELD_WRAPPED(isolate, obj, set_setter, setter); - i::Address redirected = obj->redirected_getter(); - if (redirected != i::kNullAddress) { - SET_FIELD_WRAPPED(isolate, obj, set_js_getter, redirected); - } - if (data.IsEmpty()) { - data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - obj->set_data(*Utils::OpenHandle(*data)); - obj->set_is_special_data_property(is_special_data_property); - obj->set_replace_on_access(replace_on_access); - i::Handle<i::Name> accessor_name = Utils::OpenHandle(*name); - if (!accessor_name->IsUniqueName()) { - accessor_name = isolate->factory()->InternalizeString( - i::Handle<i::String>::cast(accessor_name)); - } - obj->set_name(*accessor_name); - if (settings & ALL_CAN_READ) obj->set_all_can_read(true); - if (settings & ALL_CAN_WRITE) obj->set_all_can_write(true); - obj->set_initial_property_attributes(i::NONE); - if (!signature.IsEmpty()) { - obj->set_expected_receiver_type(*Utils::OpenHandle(*signature)); - } - return obj; -} - -} // namespace - -Local<ObjectTemplate> FunctionTemplate::InstanceTemplate() { - i::Handle<i::FunctionTemplateInfo> handle = Utils::OpenHandle(this, true); - if (!Utils::ApiCheck(!handle.is_null(), - "v8::FunctionTemplate::InstanceTemplate()", - "Reading from empty handle")) { - return Local<ObjectTemplate>(); - } - i::Isolate* isolate = handle->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - if (handle->GetInstanceTemplate()->IsUndefined(isolate)) { - Local<ObjectTemplate> templ = - ObjectTemplate::New(isolate, ToApiHandle<FunctionTemplate>(handle)); - i::FunctionTemplateInfo::SetInstanceTemplate(isolate, handle, - Utils::OpenHandle(*templ)); - } - i::Handle<i::ObjectTemplateInfo> result( - i::ObjectTemplateInfo::cast(handle->GetInstanceTemplate()), isolate); - return Utils::ToLocal(result); -} - - -void FunctionTemplate::SetLength(int length) { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::SetLength"); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - info->set_length(length); -} - - -void FunctionTemplate::SetClassName(Local<String> name) { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::SetClassName"); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - info->set_class_name(*Utils::OpenHandle(*name)); -} - - -void FunctionTemplate::SetAcceptAnyReceiver(bool value) { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::SetAcceptAnyReceiver"); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - info->set_accept_any_receiver(value); -} - - -void FunctionTemplate::SetHiddenPrototype(bool value) { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::SetHiddenPrototype"); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - info->set_hidden_prototype(value); -} - - -void FunctionTemplate::ReadOnlyPrototype() { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::ReadOnlyPrototype"); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - info->set_read_only_prototype(true); -} - - -void FunctionTemplate::RemovePrototype() { - auto info = Utils::OpenHandle(this); - EnsureNotInstantiated(info, "v8::FunctionTemplate::RemovePrototype"); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - info->set_remove_prototype(true); -} - - -// --- O b j e c t T e m p l a t e --- - - -Local<ObjectTemplate> ObjectTemplate::New( - Isolate* isolate, v8::Local<FunctionTemplate> constructor) { - return New(reinterpret_cast<i::Isolate*>(isolate), constructor); -} - - -static Local<ObjectTemplate> ObjectTemplateNew( - i::Isolate* isolate, v8::Local<FunctionTemplate> constructor, - bool do_not_cache) { - LOG_API(isolate, ObjectTemplate, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::Struct> struct_obj = isolate->factory()->NewStruct( - i::OBJECT_TEMPLATE_INFO_TYPE, i::AllocationType::kOld); - i::Handle<i::ObjectTemplateInfo> obj = - i::Handle<i::ObjectTemplateInfo>::cast(struct_obj); - InitializeTemplate(obj, Consts::OBJECT_TEMPLATE); - int next_serial_number = 0; - if (!do_not_cache) { - next_serial_number = isolate->heap()->GetNextTemplateSerialNumber(); - } - obj->set_serial_number(i::Smi::FromInt(next_serial_number)); - if (!constructor.IsEmpty()) - obj->set_constructor(*Utils::OpenHandle(*constructor)); - obj->set_data(i::Smi::kZero); - return Utils::ToLocal(obj); -} - -Local<ObjectTemplate> ObjectTemplate::New( - i::Isolate* isolate, v8::Local<FunctionTemplate> constructor) { - return ObjectTemplateNew(isolate, constructor, false); -} - -MaybeLocal<ObjectTemplate> ObjectTemplate::FromSnapshot(Isolate* isolate, - size_t index) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::FixedArray serialized_objects = i_isolate->heap()->serialized_objects(); - int int_index = static_cast<int>(index); - if (int_index < serialized_objects->length()) { - i::Object info = serialized_objects->get(int_index); - if (info->IsObjectTemplateInfo()) { - return Utils::ToLocal(i::Handle<i::ObjectTemplateInfo>( - i::ObjectTemplateInfo::cast(info), i_isolate)); - } - } - return Local<ObjectTemplate>(); -} - -// Ensure that the object template has a constructor. If no -// constructor is available we create one. -static i::Handle<i::FunctionTemplateInfo> EnsureConstructor( - i::Isolate* isolate, - ObjectTemplate* object_template) { - i::Object obj = Utils::OpenHandle(object_template)->constructor(); - if (!obj->IsUndefined(isolate)) { - i::FunctionTemplateInfo info = i::FunctionTemplateInfo::cast(obj); - return i::Handle<i::FunctionTemplateInfo>(info, isolate); - } - Local<FunctionTemplate> templ = - FunctionTemplate::New(reinterpret_cast<Isolate*>(isolate)); - i::Handle<i::FunctionTemplateInfo> constructor = Utils::OpenHandle(*templ); - i::FunctionTemplateInfo::SetInstanceTemplate( - isolate, constructor, Utils::OpenHandle(object_template)); - Utils::OpenHandle(object_template)->set_constructor(*constructor); - return constructor; -} - -template <typename Getter, typename Setter, typename Data, typename Template> -static void TemplateSetAccessor( - Template* template_obj, v8::Local<Name> name, Getter getter, Setter setter, - Data data, AccessControl settings, PropertyAttribute attribute, - v8::Local<AccessorSignature> signature, bool is_special_data_property, - bool replace_on_access, SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - auto info = Utils::OpenHandle(template_obj); - auto isolate = info->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - i::Handle<i::AccessorInfo> accessor_info = - MakeAccessorInfo(isolate, name, getter, setter, data, settings, signature, - is_special_data_property, replace_on_access); - accessor_info->set_initial_property_attributes( - static_cast<i::PropertyAttributes>(attribute)); - accessor_info->set_getter_side_effect_type(getter_side_effect_type); - accessor_info->set_setter_side_effect_type(setter_side_effect_type); - i::ApiNatives::AddNativeDataProperty(isolate, info, accessor_info); -} - -void Template::SetNativeDataProperty( - v8::Local<String> name, AccessorGetterCallback getter, - AccessorSetterCallback setter, v8::Local<Value> data, - PropertyAttribute attribute, v8::Local<AccessorSignature> signature, - AccessControl settings, SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, - signature, true, false, getter_side_effect_type, - setter_side_effect_type); -} - -void Template::SetNativeDataProperty( - v8::Local<Name> name, AccessorNameGetterCallback getter, - AccessorNameSetterCallback setter, v8::Local<Value> data, - PropertyAttribute attribute, v8::Local<AccessorSignature> signature, - AccessControl settings, SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, - signature, true, false, getter_side_effect_type, - setter_side_effect_type); -} - -void Template::SetLazyDataProperty(v8::Local<Name> name, - AccessorNameGetterCallback getter, - v8::Local<Value> data, - PropertyAttribute attribute, - SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - TemplateSetAccessor(this, name, getter, - static_cast<AccessorNameSetterCallback>(nullptr), data, - DEFAULT, attribute, Local<AccessorSignature>(), true, - true, getter_side_effect_type, setter_side_effect_type); -} - -void Template::SetIntrinsicDataProperty(Local<Name> name, Intrinsic intrinsic, - PropertyAttribute attribute) { - auto templ = Utils::OpenHandle(this); - i::Isolate* isolate = templ->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - i::ApiNatives::AddDataProperty(isolate, templ, Utils::OpenHandle(*name), - intrinsic, - static_cast<i::PropertyAttributes>(attribute)); -} - -void ObjectTemplate::SetAccessor(v8::Local<String> name, - AccessorGetterCallback getter, - AccessorSetterCallback setter, - v8::Local<Value> data, AccessControl settings, - PropertyAttribute attribute, - v8::Local<AccessorSignature> signature, - SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, - signature, i::FLAG_disable_old_api_accessors, false, - getter_side_effect_type, setter_side_effect_type); -} - -void ObjectTemplate::SetAccessor(v8::Local<Name> name, - AccessorNameGetterCallback getter, - AccessorNameSetterCallback setter, - v8::Local<Value> data, AccessControl settings, - PropertyAttribute attribute, - v8::Local<AccessorSignature> signature, - SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, - signature, i::FLAG_disable_old_api_accessors, false, - getter_side_effect_type, setter_side_effect_type); -} - -template <typename Getter, typename Setter, typename Query, typename Descriptor, - typename Deleter, typename Enumerator, typename Definer> -static i::Handle<i::InterceptorInfo> CreateInterceptorInfo( - i::Isolate* isolate, Getter getter, Setter setter, Query query, - Descriptor descriptor, Deleter remover, Enumerator enumerator, - Definer definer, Local<Value> data, PropertyHandlerFlags flags) { - auto obj = i::Handle<i::InterceptorInfo>::cast(isolate->factory()->NewStruct( - i::INTERCEPTOR_INFO_TYPE, i::AllocationType::kOld)); - obj->set_flags(0); - - if (getter != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_getter, getter); - if (setter != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_setter, setter); - if (query != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_query, query); - if (descriptor != nullptr) - SET_FIELD_WRAPPED(isolate, obj, set_descriptor, descriptor); - if (remover != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_deleter, remover); - if (enumerator != nullptr) - SET_FIELD_WRAPPED(isolate, obj, set_enumerator, enumerator); - if (definer != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_definer, definer); - obj->set_can_intercept_symbols( - !(static_cast<int>(flags) & - static_cast<int>(PropertyHandlerFlags::kOnlyInterceptStrings))); - obj->set_all_can_read(static_cast<int>(flags) & - static_cast<int>(PropertyHandlerFlags::kAllCanRead)); - obj->set_non_masking(static_cast<int>(flags) & - static_cast<int>(PropertyHandlerFlags::kNonMasking)); - obj->set_has_no_side_effect( - static_cast<int>(flags) & - static_cast<int>(PropertyHandlerFlags::kHasNoSideEffect)); - - if (data.IsEmpty()) { - data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - obj->set_data(*Utils::OpenHandle(*data)); - return obj; -} - -template <typename Getter, typename Setter, typename Query, typename Descriptor, - typename Deleter, typename Enumerator, typename Definer> -static i::Handle<i::InterceptorInfo> CreateNamedInterceptorInfo( - i::Isolate* isolate, Getter getter, Setter setter, Query query, - Descriptor descriptor, Deleter remover, Enumerator enumerator, - Definer definer, Local<Value> data, PropertyHandlerFlags flags) { - auto interceptor = - CreateInterceptorInfo(isolate, getter, setter, query, descriptor, remover, - enumerator, definer, data, flags); - interceptor->set_is_named(true); - return interceptor; -} - -template <typename Getter, typename Setter, typename Query, typename Descriptor, - typename Deleter, typename Enumerator, typename Definer> -static i::Handle<i::InterceptorInfo> CreateIndexedInterceptorInfo( - i::Isolate* isolate, Getter getter, Setter setter, Query query, - Descriptor descriptor, Deleter remover, Enumerator enumerator, - Definer definer, Local<Value> data, PropertyHandlerFlags flags) { - auto interceptor = - CreateInterceptorInfo(isolate, getter, setter, query, descriptor, remover, - enumerator, definer, data, flags); - interceptor->set_is_named(false); - return interceptor; -} - -template <typename Getter, typename Setter, typename Query, typename Descriptor, - typename Deleter, typename Enumerator, typename Definer> -static void ObjectTemplateSetNamedPropertyHandler( - ObjectTemplate* templ, Getter getter, Setter setter, Query query, - Descriptor descriptor, Deleter remover, Enumerator enumerator, - Definer definer, Local<Value> data, PropertyHandlerFlags flags) { - i::Isolate* isolate = Utils::OpenHandle(templ)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto cons = EnsureConstructor(isolate, templ); - EnsureNotInstantiated(cons, "ObjectTemplateSetNamedPropertyHandler"); - auto obj = - CreateNamedInterceptorInfo(isolate, getter, setter, query, descriptor, - remover, enumerator, definer, data, flags); - i::FunctionTemplateInfo::SetNamedPropertyHandler(isolate, cons, obj); -} - -void ObjectTemplate::SetHandler( - const NamedPropertyHandlerConfiguration& config) { - ObjectTemplateSetNamedPropertyHandler( - this, config.getter, config.setter, config.query, config.descriptor, - config.deleter, config.enumerator, config.definer, config.data, - config.flags); -} - - -void ObjectTemplate::MarkAsUndetectable() { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto cons = EnsureConstructor(isolate, this); - EnsureNotInstantiated(cons, "v8::ObjectTemplate::MarkAsUndetectable"); - cons->set_undetectable(true); -} - - -void ObjectTemplate::SetAccessCheckCallback(AccessCheckCallback callback, - Local<Value> data) { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto cons = EnsureConstructor(isolate, this); - EnsureNotInstantiated(cons, "v8::ObjectTemplate::SetAccessCheckCallback"); - - i::Handle<i::Struct> struct_info = isolate->factory()->NewStruct( - i::ACCESS_CHECK_INFO_TYPE, i::AllocationType::kOld); - i::Handle<i::AccessCheckInfo> info = - i::Handle<i::AccessCheckInfo>::cast(struct_info); - - SET_FIELD_WRAPPED(isolate, info, set_callback, callback); - info->set_named_interceptor(i::Object()); - info->set_indexed_interceptor(i::Object()); - - if (data.IsEmpty()) { - data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - info->set_data(*Utils::OpenHandle(*data)); - - i::FunctionTemplateInfo::SetAccessCheckInfo(isolate, cons, info); - cons->set_needs_access_check(true); -} - -void ObjectTemplate::SetAccessCheckCallbackAndHandler( - AccessCheckCallback callback, - const NamedPropertyHandlerConfiguration& named_handler, - const IndexedPropertyHandlerConfiguration& indexed_handler, - Local<Value> data) { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto cons = EnsureConstructor(isolate, this); - EnsureNotInstantiated( - cons, "v8::ObjectTemplate::SetAccessCheckCallbackWithHandler"); - - i::Handle<i::Struct> struct_info = isolate->factory()->NewStruct( - i::ACCESS_CHECK_INFO_TYPE, i::AllocationType::kOld); - i::Handle<i::AccessCheckInfo> info = - i::Handle<i::AccessCheckInfo>::cast(struct_info); - - SET_FIELD_WRAPPED(isolate, info, set_callback, callback); - auto named_interceptor = CreateNamedInterceptorInfo( - isolate, named_handler.getter, named_handler.setter, named_handler.query, - named_handler.descriptor, named_handler.deleter, named_handler.enumerator, - named_handler.definer, named_handler.data, named_handler.flags); - info->set_named_interceptor(*named_interceptor); - auto indexed_interceptor = CreateIndexedInterceptorInfo( - isolate, indexed_handler.getter, indexed_handler.setter, - indexed_handler.query, indexed_handler.descriptor, - indexed_handler.deleter, indexed_handler.enumerator, - indexed_handler.definer, indexed_handler.data, indexed_handler.flags); - info->set_indexed_interceptor(*indexed_interceptor); - - if (data.IsEmpty()) { - data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - info->set_data(*Utils::OpenHandle(*data)); - - i::FunctionTemplateInfo::SetAccessCheckInfo(isolate, cons, info); - cons->set_needs_access_check(true); -} - -void ObjectTemplate::SetHandler( - const IndexedPropertyHandlerConfiguration& config) { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto cons = EnsureConstructor(isolate, this); - EnsureNotInstantiated(cons, "v8::ObjectTemplate::SetHandler"); - auto obj = CreateIndexedInterceptorInfo( - isolate, config.getter, config.setter, config.query, config.descriptor, - config.deleter, config.enumerator, config.definer, config.data, - config.flags); - i::FunctionTemplateInfo::SetIndexedPropertyHandler(isolate, cons, obj); -} - -void ObjectTemplate::SetCallAsFunctionHandler(FunctionCallback callback, - Local<Value> data) { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto cons = EnsureConstructor(isolate, this); - EnsureNotInstantiated(cons, "v8::ObjectTemplate::SetCallAsFunctionHandler"); - i::Handle<i::CallHandlerInfo> obj = isolate->factory()->NewCallHandlerInfo(); - SET_FIELD_WRAPPED(isolate, obj, set_callback, callback); - SET_FIELD_WRAPPED(isolate, obj, set_js_callback, obj->redirected_callback()); - if (data.IsEmpty()) { - data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - obj->set_data(*Utils::OpenHandle(*data)); - i::FunctionTemplateInfo::SetInstanceCallHandler(isolate, cons, obj); -} - -int ObjectTemplate::InternalFieldCount() { - return Utils::OpenHandle(this)->embedder_field_count(); -} - -void ObjectTemplate::SetInternalFieldCount(int value) { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - if (!Utils::ApiCheck(i::Smi::IsValid(value), - "v8::ObjectTemplate::SetInternalFieldCount()", - "Invalid embedder field count")) { - return; - } - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - if (value > 0) { - // The embedder field count is set by the constructor function's - // construct code, so we ensure that there is a constructor - // function to do the setting. - EnsureConstructor(isolate, this); - } - Utils::OpenHandle(this)->set_embedder_field_count(value); -} - -bool ObjectTemplate::IsImmutableProto() { - return Utils::OpenHandle(this)->immutable_proto(); -} - -void ObjectTemplate::SetImmutableProto() { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - Utils::OpenHandle(this)->set_immutable_proto(true); -} - -// --- S c r i p t s --- - - -// Internally, UnboundScript is a SharedFunctionInfo, and Script is a -// JSFunction. - -ScriptCompiler::CachedData::CachedData(const uint8_t* data_, int length_, - BufferPolicy buffer_policy_) - : data(data_), - length(length_), - rejected(false), - buffer_policy(buffer_policy_) {} - - -ScriptCompiler::CachedData::~CachedData() { - if (buffer_policy == BufferOwned) { - delete[] data; - } -} - -bool ScriptCompiler::ExternalSourceStream::SetBookmark() { return false; } - -void ScriptCompiler::ExternalSourceStream::ResetToBookmark() { UNREACHABLE(); } - -ScriptCompiler::StreamedSource::StreamedSource(ExternalSourceStream* stream, - Encoding encoding) - : StreamedSource(std::unique_ptr<ExternalSourceStream>(stream), encoding) {} - -ScriptCompiler::StreamedSource::StreamedSource( - std::unique_ptr<ExternalSourceStream> stream, Encoding encoding) - : impl_(new i::ScriptStreamingData(std::move(stream), encoding)) {} - -ScriptCompiler::StreamedSource::~StreamedSource() = default; - -Local<Script> UnboundScript::BindToCurrentContext() { - auto function_info = - i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); - i::Isolate* isolate = function_info->GetIsolate(); - i::Handle<i::JSFunction> function = - isolate->factory()->NewFunctionFromSharedFunctionInfo( - function_info, isolate->native_context()); - return ToApiHandle<Script>(function); -} - -int UnboundScript::GetId() { - auto function_info = - i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); - i::Isolate* isolate = function_info->GetIsolate(); - LOG_API(isolate, UnboundScript, GetId); - i::HandleScope scope(isolate); - i::Handle<i::Script> script(i::Script::cast(function_info->script()), - isolate); - return script->id(); -} - - -int UnboundScript::GetLineNumber(int code_pos) { - i::Handle<i::SharedFunctionInfo> obj = - i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); - i::Isolate* isolate = obj->GetIsolate(); - LOG_API(isolate, UnboundScript, GetLineNumber); - if (obj->script()->IsScript()) { - i::Handle<i::Script> script(i::Script::cast(obj->script()), isolate); - return i::Script::GetLineNumber(script, code_pos); - } else { - return -1; - } -} - - -Local<Value> UnboundScript::GetScriptName() { - i::Handle<i::SharedFunctionInfo> obj = - i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); - i::Isolate* isolate = obj->GetIsolate(); - LOG_API(isolate, UnboundScript, GetName); - if (obj->script()->IsScript()) { - i::Object name = i::Script::cast(obj->script())->name(); - return Utils::ToLocal(i::Handle<i::Object>(name, isolate)); - } else { - return Local<String>(); - } -} - - -Local<Value> UnboundScript::GetSourceURL() { - i::Handle<i::SharedFunctionInfo> obj = - i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); - i::Isolate* isolate = obj->GetIsolate(); - LOG_API(isolate, UnboundScript, GetSourceURL); - if (obj->script()->IsScript()) { - i::Object url = i::Script::cast(obj->script())->source_url(); - return Utils::ToLocal(i::Handle<i::Object>(url, isolate)); - } else { - return Local<String>(); - } -} - - -Local<Value> UnboundScript::GetSourceMappingURL() { - i::Handle<i::SharedFunctionInfo> obj = - i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); - i::Isolate* isolate = obj->GetIsolate(); - LOG_API(isolate, UnboundScript, GetSourceMappingURL); - if (obj->script()->IsScript()) { - i::Object url = i::Script::cast(obj->script())->source_mapping_url(); - return Utils::ToLocal(i::Handle<i::Object>(url, isolate)); - } else { - return Local<String>(); - } -} - - -MaybeLocal<Value> Script::Run(Local<Context> context) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); - ENTER_V8(isolate, context, Script, Run, MaybeLocal<Value>(), - InternalEscapableScope); - i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true); - i::AggregatingHistogramTimerScope timer(isolate->counters()->compile_lazy()); - i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); - auto fun = i::Handle<i::JSFunction>::cast(Utils::OpenHandle(this)); - - i::Handle<i::Object> receiver = isolate->global_proxy(); - Local<Value> result; - has_pending_exception = !ToLocal<Value>( - i::Execution::Call(isolate, fun, receiver, 0, nullptr), &result); - - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - - -Local<Value> ScriptOrModule::GetResourceName() { - i::Handle<i::Script> obj = Utils::OpenHandle(this); - i::Isolate* isolate = obj->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::Object> val(obj->name(), isolate); - return ToApiHandle<Value>(val); -} - -Local<PrimitiveArray> ScriptOrModule::GetHostDefinedOptions() { - i::Handle<i::Script> obj = Utils::OpenHandle(this); - i::Isolate* isolate = obj->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::FixedArray> val(obj->host_defined_options(), isolate); - return ToApiHandle<PrimitiveArray>(val); -} - -Local<UnboundScript> Script::GetUnboundScript() { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::SharedFunctionInfo sfi = i::JSFunction::cast(*obj)->shared(); - i::Isolate* isolate = sfi->GetIsolate(); - return ToApiHandle<UnboundScript>(i::handle(sfi, isolate)); -} - -// static -Local<PrimitiveArray> PrimitiveArray::New(Isolate* v8_isolate, int length) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - Utils::ApiCheck(length >= 0, "v8::PrimitiveArray::New", - "length must be equal or greater than zero"); - i::Handle<i::FixedArray> array = isolate->factory()->NewFixedArray(length); - return ToApiHandle<PrimitiveArray>(array); -} - -int PrimitiveArray::Length() const { - i::Handle<i::FixedArray> array = Utils::OpenHandle(this); - return array->length(); -} - -void PrimitiveArray::Set(Isolate* v8_isolate, int index, - Local<Primitive> item) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::Handle<i::FixedArray> array = Utils::OpenHandle(this); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - Utils::ApiCheck(index >= 0 && index < array->length(), - "v8::PrimitiveArray::Set", - "index must be greater than or equal to 0 and less than the " - "array length"); - i::Handle<i::Object> i_item = Utils::OpenHandle(*item); - array->set(index, *i_item); -} - -Local<Primitive> PrimitiveArray::Get(Isolate* v8_isolate, int index) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::Handle<i::FixedArray> array = Utils::OpenHandle(this); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - Utils::ApiCheck(index >= 0 && index < array->length(), - "v8::PrimitiveArray::Get", - "index must be greater than or equal to 0 and less than the " - "array length"); - i::Handle<i::Object> i_item(array->get(index), isolate); - return ToApiHandle<Primitive>(i_item); -} - -Module::Status Module::GetStatus() const { - i::Handle<i::Module> self = Utils::OpenHandle(this); - switch (self->status()) { - case i::Module::kUninstantiated: - case i::Module::kPreInstantiating: - return kUninstantiated; - case i::Module::kInstantiating: - return kInstantiating; - case i::Module::kInstantiated: - return kInstantiated; - case i::Module::kEvaluating: - return kEvaluating; - case i::Module::kEvaluated: - return kEvaluated; - case i::Module::kErrored: - return kErrored; - } - UNREACHABLE(); -} - -Local<Value> Module::GetException() const { - Utils::ApiCheck(GetStatus() == kErrored, "v8::Module::GetException", - "Module status must be kErrored"); - i::Handle<i::Module> self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - return ToApiHandle<Value>(i::handle(self->GetException(), isolate)); -} - -int Module::GetModuleRequestsLength() const { - i::Handle<i::Module> self = Utils::OpenHandle(this); - return self->info()->module_requests()->length(); -} - -Local<String> Module::GetModuleRequest(int i) const { - CHECK_GE(i, 0); - i::Handle<i::Module> self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - i::Handle<i::FixedArray> module_requests(self->info()->module_requests(), - isolate); - CHECK_LT(i, module_requests->length()); - return ToApiHandle<String>(i::handle(module_requests->get(i), isolate)); -} - -Location Module::GetModuleRequestLocation(int i) const { - CHECK_GE(i, 0); - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope scope(isolate); - i::Handle<i::Module> self = Utils::OpenHandle(this); - i::Handle<i::FixedArray> module_request_positions( - self->info()->module_request_positions(), isolate); - CHECK_LT(i, module_request_positions->length()); - int position = i::Smi::ToInt(module_request_positions->get(i)); - i::Handle<i::Script> script(self->script(), isolate); - i::Script::PositionInfo info; - i::Script::GetPositionInfo(script, position, &info, i::Script::WITH_OFFSET); - return v8::Location(info.line, info.column); -} - -Local<Value> Module::GetModuleNamespace() { - Utils::ApiCheck( - GetStatus() >= kInstantiated, "v8::Module::GetModuleNamespace", - "v8::Module::GetModuleNamespace must be used on an instantiated module"); - i::Handle<i::Module> self = Utils::OpenHandle(this); - i::Handle<i::JSModuleNamespace> module_namespace = - i::Module::GetModuleNamespace(self->GetIsolate(), self); - return ToApiHandle<Value>(module_namespace); -} - -Local<UnboundModuleScript> Module::GetUnboundModuleScript() { - Utils::ApiCheck( - GetStatus() < kEvaluating, "v8::Module::GetUnboundScript", - "v8::Module::GetUnboundScript must be used on an unevaluated module"); - i::Handle<i::Module> self = Utils::OpenHandle(this); - return ToApiHandle<UnboundModuleScript>(i::Handle<i::SharedFunctionInfo>( - self->GetSharedFunctionInfo(), self->GetIsolate())); -} - -int Module::GetIdentityHash() const { return Utils::OpenHandle(this)->hash(); } - -Maybe<bool> Module::InstantiateModule(Local<Context> context, - Module::ResolveCallback callback) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Module, InstantiateModule, Nothing<bool>(), - i::HandleScope); - has_pending_exception = !i::Module::Instantiate( - isolate, Utils::OpenHandle(this), context, callback); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - -MaybeLocal<Value> Module::Evaluate(Local<Context> context) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); - ENTER_V8(isolate, context, Module, Evaluate, MaybeLocal<Value>(), - InternalEscapableScope); - i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true); - i::AggregatingHistogramTimerScope timer(isolate->counters()->compile_lazy()); - i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); - - i::Handle<i::Module> self = Utils::OpenHandle(this); - // It's an API error to call Evaluate before Instantiate. - CHECK_GE(self->status(), i::Module::kInstantiated); - - Local<Value> result; - has_pending_exception = !ToLocal(i::Module::Evaluate(isolate, self), &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - -namespace { - -i::Compiler::ScriptDetails GetScriptDetails( - i::Isolate* isolate, Local<Value> resource_name, - Local<Integer> resource_line_offset, Local<Integer> resource_column_offset, - Local<Value> source_map_url, Local<PrimitiveArray> host_defined_options) { - i::Compiler::ScriptDetails script_details; - if (!resource_name.IsEmpty()) { - script_details.name_obj = Utils::OpenHandle(*(resource_name)); - } - if (!resource_line_offset.IsEmpty()) { - script_details.line_offset = - static_cast<int>(resource_line_offset->Value()); - } - if (!resource_column_offset.IsEmpty()) { - script_details.column_offset = - static_cast<int>(resource_column_offset->Value()); - } - script_details.host_defined_options = isolate->factory()->empty_fixed_array(); - if (!host_defined_options.IsEmpty()) { - script_details.host_defined_options = - Utils::OpenHandle(*(host_defined_options)); - } - if (!source_map_url.IsEmpty()) { - script_details.source_map_url = Utils::OpenHandle(*(source_map_url)); - } - return script_details; -} - -} // namespace - -MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundInternal( - Isolate* v8_isolate, Source* source, CompileOptions options, - NoCacheReason no_cache_reason) { - auto isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); - ENTER_V8_NO_SCRIPT(isolate, v8_isolate->GetCurrentContext(), ScriptCompiler, - CompileUnbound, MaybeLocal<UnboundScript>(), - InternalEscapableScope); - - i::ScriptData* script_data = nullptr; - if (options == kConsumeCodeCache) { - DCHECK(source->cached_data); - // ScriptData takes care of pointer-aligning the data. - script_data = new i::ScriptData(source->cached_data->data, - source->cached_data->length); - } - - i::Handle<i::String> str = Utils::OpenHandle(*(source->source_string)); - i::Handle<i::SharedFunctionInfo> result; - TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.CompileScript"); - i::Compiler::ScriptDetails script_details = GetScriptDetails( - isolate, source->resource_name, source->resource_line_offset, - source->resource_column_offset, source->source_map_url, - source->host_defined_options); - i::MaybeHandle<i::SharedFunctionInfo> maybe_function_info = - i::Compiler::GetSharedFunctionInfoForScript( - isolate, str, script_details, source->resource_options, nullptr, - script_data, options, no_cache_reason, i::NOT_NATIVES_CODE); - if (options == kConsumeCodeCache) { - source->cached_data->rejected = script_data->rejected(); - } - delete script_data; - has_pending_exception = !maybe_function_info.ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(UnboundScript); - RETURN_ESCAPED(ToApiHandle<UnboundScript>(result)); -} - -MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundScript( - Isolate* v8_isolate, Source* source, CompileOptions options, - NoCacheReason no_cache_reason) { - Utils::ApiCheck( - !source->GetResourceOptions().IsModule(), - "v8::ScriptCompiler::CompileUnboundScript", - "v8::ScriptCompiler::CompileModule must be used to compile modules"); - return CompileUnboundInternal(v8_isolate, source, options, no_cache_reason); -} - -MaybeLocal<Script> ScriptCompiler::Compile(Local<Context> context, - Source* source, - CompileOptions options, - NoCacheReason no_cache_reason) { - Utils::ApiCheck( - !source->GetResourceOptions().IsModule(), "v8::ScriptCompiler::Compile", - "v8::ScriptCompiler::CompileModule must be used to compile modules"); - auto isolate = context->GetIsolate(); - auto maybe = - CompileUnboundInternal(isolate, source, options, no_cache_reason); - Local<UnboundScript> result; - if (!maybe.ToLocal(&result)) return MaybeLocal<Script>(); - v8::Context::Scope scope(context); - return result->BindToCurrentContext(); -} - -MaybeLocal<Module> ScriptCompiler::CompileModule( - Isolate* isolate, Source* source, CompileOptions options, - NoCacheReason no_cache_reason) { - CHECK(options == kNoCompileOptions || options == kConsumeCodeCache); - - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - - Utils::ApiCheck(source->GetResourceOptions().IsModule(), - "v8::ScriptCompiler::CompileModule", - "Invalid ScriptOrigin: is_module must be true"); - auto maybe = - CompileUnboundInternal(isolate, source, options, no_cache_reason); - Local<UnboundScript> unbound; - if (!maybe.ToLocal(&unbound)) return MaybeLocal<Module>(); - - i::Handle<i::SharedFunctionInfo> shared = Utils::OpenHandle(*unbound); - return ToApiHandle<Module>(i_isolate->factory()->NewModule(shared)); -} - -namespace { -bool IsIdentifier(i::Isolate* isolate, i::Handle<i::String> string) { - string = i::String::Flatten(isolate, string); - const int length = string->length(); - if (length == 0) return false; - if (!i::IsIdentifierStart(string->Get(0))) return false; - i::DisallowHeapAllocation no_gc; - i::String::FlatContent flat = string->GetFlatContent(no_gc); - if (flat.IsOneByte()) { - auto vector = flat.ToOneByteVector(); - for (int i = 1; i < length; i++) { - if (!i::IsIdentifierPart(vector[i])) return false; - } - } else { - auto vector = flat.ToUC16Vector(); - for (int i = 1; i < length; i++) { - if (!i::IsIdentifierPart(vector[i])) return false; - } - } - return true; -} -} // anonymous namespace - -MaybeLocal<Function> ScriptCompiler::CompileFunctionInContext( - Local<Context> v8_context, Source* source, size_t arguments_count, - Local<String> arguments[], size_t context_extension_count, - Local<Object> context_extensions[], CompileOptions options, - NoCacheReason no_cache_reason, - Local<ScriptOrModule>* script_or_module_out) { - Local<Function> result; - - { - PREPARE_FOR_EXECUTION(v8_context, ScriptCompiler, CompileFunctionInContext, - Function); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); - - DCHECK(options == CompileOptions::kConsumeCodeCache || - options == CompileOptions::kEagerCompile || - options == CompileOptions::kNoCompileOptions); - - i::Handle<i::Context> context = Utils::OpenHandle(*v8_context); - - DCHECK(context->IsNativeContext()); - - i::Handle<i::FixedArray> arguments_list = - isolate->factory()->NewFixedArray(static_cast<int>(arguments_count)); - for (int i = 0; i < static_cast<int>(arguments_count); i++) { - i::Handle<i::String> argument = Utils::OpenHandle(*arguments[i]); - if (!IsIdentifier(isolate, argument)) return Local<Function>(); - arguments_list->set(i, *argument); - } - - for (size_t i = 0; i < context_extension_count; ++i) { - i::Handle<i::JSReceiver> extension = - Utils::OpenHandle(*context_extensions[i]); - if (!extension->IsJSObject()) return Local<Function>(); - context = isolate->factory()->NewWithContext( - context, - i::ScopeInfo::CreateForWithScope( - isolate, - context->IsNativeContext() - ? i::Handle<i::ScopeInfo>::null() - : i::Handle<i::ScopeInfo>(context->scope_info(), isolate)), - extension); - } - - i::Compiler::ScriptDetails script_details = GetScriptDetails( - isolate, source->resource_name, source->resource_line_offset, - source->resource_column_offset, source->source_map_url, - source->host_defined_options); - - i::ScriptData* script_data = nullptr; - if (options == kConsumeCodeCache) { - DCHECK(source->cached_data); - // ScriptData takes care of pointer-aligning the data. - script_data = new i::ScriptData(source->cached_data->data, - source->cached_data->length); - } - - i::Handle<i::JSFunction> scoped_result; - has_pending_exception = - !i::Compiler::GetWrappedFunction( - Utils::OpenHandle(*source->source_string), arguments_list, context, - script_details, source->resource_options, script_data, options, - no_cache_reason) - .ToHandle(&scoped_result); - if (options == kConsumeCodeCache) { - source->cached_data->rejected = script_data->rejected(); - } - delete script_data; - RETURN_ON_FAILED_EXECUTION(Function); - result = handle_scope.Escape(Utils::CallableToLocal(scoped_result)); - } - - if (script_or_module_out != nullptr) { - i::Handle<i::JSFunction> function = - i::Handle<i::JSFunction>::cast(Utils::OpenHandle(*result)); - i::Isolate* isolate = function->GetIsolate(); - i::Handle<i::SharedFunctionInfo> shared(function->shared(), isolate); - i::Handle<i::Script> script(i::Script::cast(shared->script()), isolate); - *script_or_module_out = v8::Utils::ScriptOrModuleToLocal(script); - } - - return result; -} - -void ScriptCompiler::ScriptStreamingTask::Run() { data_->task->Run(); } - -ScriptCompiler::ScriptStreamingTask* ScriptCompiler::StartStreamingScript( - Isolate* v8_isolate, StreamedSource* source, CompileOptions options) { - if (!i::FLAG_script_streaming) { - return nullptr; - } - // We don't support other compile options on streaming background compiles. - // TODO(rmcilroy): remove CompileOptions from the API. - CHECK(options == ScriptCompiler::kNoCompileOptions); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::ScriptStreamingData* data = source->impl(); - std::unique_ptr<i::BackgroundCompileTask> task = - base::make_unique<i::BackgroundCompileTask>(data, isolate); - data->task = std::move(task); - return new ScriptCompiler::ScriptStreamingTask(data); -} - -MaybeLocal<Script> ScriptCompiler::Compile(Local<Context> context, - StreamedSource* v8_source, - Local<String> full_source_string, - const ScriptOrigin& origin) { - PREPARE_FOR_EXECUTION(context, ScriptCompiler, Compile, Script); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); - TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), - "V8.CompileStreamedScript"); - - i::Handle<i::String> str = Utils::OpenHandle(*(full_source_string)); - i::Compiler::ScriptDetails script_details = GetScriptDetails( - isolate, origin.ResourceName(), origin.ResourceLineOffset(), - origin.ResourceColumnOffset(), origin.SourceMapUrl(), - origin.HostDefinedOptions()); - i::ScriptStreamingData* data = v8_source->impl(); - - i::MaybeHandle<i::SharedFunctionInfo> maybe_function_info = - i::Compiler::GetSharedFunctionInfoForStreamedScript( - isolate, str, script_details, origin.Options(), data); - - i::Handle<i::SharedFunctionInfo> result; - has_pending_exception = !maybe_function_info.ToHandle(&result); - if (has_pending_exception) isolate->ReportPendingMessages(); - - RETURN_ON_FAILED_EXECUTION(Script); - - Local<UnboundScript> generic = ToApiHandle<UnboundScript>(result); - if (generic.IsEmpty()) return Local<Script>(); - Local<Script> bound = generic->BindToCurrentContext(); - if (bound.IsEmpty()) return Local<Script>(); - RETURN_ESCAPED(bound); -} - -uint32_t ScriptCompiler::CachedDataVersionTag() { - return static_cast<uint32_t>(base::hash_combine( - internal::Version::Hash(), internal::FlagList::Hash(), - static_cast<uint32_t>(internal::CpuFeatures::SupportedFeatures()))); -} - -ScriptCompiler::CachedData* ScriptCompiler::CreateCodeCache( - Local<UnboundScript> unbound_script) { - i::Handle<i::SharedFunctionInfo> shared = - i::Handle<i::SharedFunctionInfo>::cast( - Utils::OpenHandle(*unbound_script)); - DCHECK(shared->is_toplevel()); - return i::CodeSerializer::Serialize(shared); -} - -// static -ScriptCompiler::CachedData* ScriptCompiler::CreateCodeCache( - Local<UnboundModuleScript> unbound_module_script) { - i::Handle<i::SharedFunctionInfo> shared = - i::Handle<i::SharedFunctionInfo>::cast( - Utils::OpenHandle(*unbound_module_script)); - DCHECK(shared->is_toplevel()); - return i::CodeSerializer::Serialize(shared); -} - -ScriptCompiler::CachedData* ScriptCompiler::CreateCodeCacheForFunction( - Local<Function> function) { - auto js_function = - i::Handle<i::JSFunction>::cast(Utils::OpenHandle(*function)); - i::Handle<i::SharedFunctionInfo> shared(js_function->shared(), - js_function->GetIsolate()); - CHECK(shared->is_wrapped()); - return i::CodeSerializer::Serialize(shared); -} - -MaybeLocal<Script> Script::Compile(Local<Context> context, Local<String> source, - ScriptOrigin* origin) { - if (origin) { - ScriptCompiler::Source script_source(source, *origin); - return ScriptCompiler::Compile(context, &script_source); - } - ScriptCompiler::Source script_source(source); - return ScriptCompiler::Compile(context, &script_source); -} - - -// --- E x c e p t i o n s --- - -v8::TryCatch::TryCatch(v8::Isolate* isolate) - : isolate_(reinterpret_cast<i::Isolate*>(isolate)), - next_(isolate_->try_catch_handler()), - is_verbose_(false), - can_continue_(true), - capture_message_(true), - rethrow_(false), - has_terminated_(false) { - ResetInternal(); - // Special handling for simulators which have a separate JS stack. - js_stack_comparable_address_ = reinterpret_cast<void*>( - i::SimulatorStack::RegisterJSStackComparableAddress(isolate_)); - isolate_->RegisterTryCatchHandler(this); -} - - -v8::TryCatch::~TryCatch() { - if (rethrow_) { - v8::Isolate* isolate = reinterpret_cast<Isolate*>(isolate_); - v8::HandleScope scope(isolate); - v8::Local<v8::Value> exc = v8::Local<v8::Value>::New(isolate, Exception()); - if (HasCaught() && capture_message_) { - // If an exception was caught and rethrow_ is indicated, the saved - // message, script, and location need to be restored to Isolate TLS - // for reuse. capture_message_ needs to be disabled so that Throw() - // does not create a new message. - isolate_->thread_local_top()->rethrowing_message_ = true; - isolate_->RestorePendingMessageFromTryCatch(this); - } - isolate_->UnregisterTryCatchHandler(this); - i::SimulatorStack::UnregisterJSStackComparableAddress(isolate_); - reinterpret_cast<Isolate*>(isolate_)->ThrowException(exc); - DCHECK(!isolate_->thread_local_top()->rethrowing_message_); - } else { - if (HasCaught() && isolate_->has_scheduled_exception()) { - // If an exception was caught but is still scheduled because no API call - // promoted it, then it is canceled to prevent it from being propagated. - // Note that this will not cancel termination exceptions. - isolate_->CancelScheduledExceptionFromTryCatch(this); - } - isolate_->UnregisterTryCatchHandler(this); - i::SimulatorStack::UnregisterJSStackComparableAddress(isolate_); - } -} - -void* v8::TryCatch::operator new(size_t) { base::OS::Abort(); } -void* v8::TryCatch::operator new[](size_t) { base::OS::Abort(); } -void v8::TryCatch::operator delete(void*, size_t) { base::OS::Abort(); } -void v8::TryCatch::operator delete[](void*, size_t) { base::OS::Abort(); } - -bool v8::TryCatch::HasCaught() const { - return !i::Object(reinterpret_cast<i::Address>(exception_)) - ->IsTheHole(isolate_); -} - - -bool v8::TryCatch::CanContinue() const { - return can_continue_; -} - - -bool v8::TryCatch::HasTerminated() const { - return has_terminated_; -} - - -v8::Local<v8::Value> v8::TryCatch::ReThrow() { - if (!HasCaught()) return v8::Local<v8::Value>(); - rethrow_ = true; - return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate_)); -} - - -v8::Local<Value> v8::TryCatch::Exception() const { - if (HasCaught()) { - // Check for out of memory exception. - i::Object exception(reinterpret_cast<i::Address>(exception_)); - return v8::Utils::ToLocal(i::Handle<i::Object>(exception, isolate_)); - } else { - return v8::Local<Value>(); - } -} - - -MaybeLocal<Value> v8::TryCatch::StackTrace(Local<Context> context) const { - if (!HasCaught()) return v8::Local<Value>(); - i::Object raw_obj(reinterpret_cast<i::Address>(exception_)); - if (!raw_obj->IsJSObject()) return v8::Local<Value>(); - PREPARE_FOR_EXECUTION(context, TryCatch, StackTrace, Value); - i::Handle<i::JSObject> obj(i::JSObject::cast(raw_obj), isolate_); - i::Handle<i::String> name = isolate->factory()->stack_string(); - Maybe<bool> maybe = i::JSReceiver::HasProperty(obj, name); - has_pending_exception = maybe.IsNothing(); - RETURN_ON_FAILED_EXECUTION(Value); - if (!maybe.FromJust()) return v8::Local<Value>(); - Local<Value> result; - has_pending_exception = - !ToLocal<Value>(i::JSReceiver::GetProperty(isolate, obj, name), &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - - -v8::Local<v8::Message> v8::TryCatch::Message() const { - i::Object message(reinterpret_cast<i::Address>(message_obj_)); - DCHECK(message->IsJSMessageObject() || message->IsTheHole(isolate_)); - if (HasCaught() && !message->IsTheHole(isolate_)) { - return v8::Utils::MessageToLocal(i::Handle<i::Object>(message, isolate_)); - } else { - return v8::Local<v8::Message>(); - } -} - - -void v8::TryCatch::Reset() { - if (!rethrow_ && HasCaught() && isolate_->has_scheduled_exception()) { - // If an exception was caught but is still scheduled because no API call - // promoted it, then it is canceled to prevent it from being propagated. - // Note that this will not cancel termination exceptions. - isolate_->CancelScheduledExceptionFromTryCatch(this); - } - ResetInternal(); -} - - -void v8::TryCatch::ResetInternal() { - i::Object the_hole = i::ReadOnlyRoots(isolate_).the_hole_value(); - exception_ = reinterpret_cast<void*>(the_hole->ptr()); - message_obj_ = reinterpret_cast<void*>(the_hole->ptr()); -} - - -void v8::TryCatch::SetVerbose(bool value) { - is_verbose_ = value; -} - -bool v8::TryCatch::IsVerbose() const { return is_verbose_; } - -void v8::TryCatch::SetCaptureMessage(bool value) { - capture_message_ = value; -} - - -// --- M e s s a g e --- - - -Local<String> Message::Get() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::String> raw_result = i::MessageHandler::GetMessage(isolate, obj); - Local<String> result = Utils::ToLocal(raw_result); - return scope.Escape(result); -} - -v8::Isolate* Message::GetIsolate() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - return reinterpret_cast<Isolate*>(isolate); -} - -ScriptOrigin Message::GetScriptOrigin() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - auto message = i::Handle<i::JSMessageObject>::cast(Utils::OpenHandle(this)); - i::Handle<i::Script> script(message->script(), isolate); - return GetScriptOriginForScript(isolate, script); -} - - -v8::Local<Value> Message::GetScriptResourceName() const { - return GetScriptOrigin().ResourceName(); -} - - -v8::Local<v8::StackTrace> Message::GetStackTrace() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); - auto message = i::Handle<i::JSMessageObject>::cast(Utils::OpenHandle(this)); - i::Handle<i::Object> stackFramesObj(message->stack_frames(), isolate); - if (!stackFramesObj->IsFixedArray()) return v8::Local<v8::StackTrace>(); - auto stackTrace = i::Handle<i::FixedArray>::cast(stackFramesObj); - return scope.Escape(Utils::StackTraceToLocal(stackTrace)); -} - - -Maybe<int> Message::GetLineNumber(Local<Context> context) const { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); - auto msg = i::Handle<i::JSMessageObject>::cast(self); - return Just(msg->GetLineNumber()); -} - - -int Message::GetStartPosition() const { - auto self = Utils::OpenHandle(this); - return self->start_position(); -} - - -int Message::GetEndPosition() const { - auto self = Utils::OpenHandle(this); - return self->end_position(); -} - -int Message::ErrorLevel() const { - auto self = Utils::OpenHandle(this); - return self->error_level(); -} - -int Message::GetStartColumn() const { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); - auto msg = i::Handle<i::JSMessageObject>::cast(self); - return msg->GetColumnNumber(); -} - -Maybe<int> Message::GetStartColumn(Local<Context> context) const { - return Just(GetStartColumn()); -} - -int Message::GetEndColumn() const { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); - auto msg = i::Handle<i::JSMessageObject>::cast(self); - const int column_number = msg->GetColumnNumber(); - if (column_number == -1) return -1; - const int start = self->start_position(); - const int end = self->end_position(); - return column_number + (end - start); -} - -Maybe<int> Message::GetEndColumn(Local<Context> context) const { - return Just(GetEndColumn()); -} - - -bool Message::IsSharedCrossOrigin() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - return Utils::OpenHandle(this) - ->script() - ->origin_options() - .IsSharedCrossOrigin(); -} - -bool Message::IsOpaque() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - return Utils::OpenHandle(this)->script()->origin_options().IsOpaque(); -} - - -MaybeLocal<String> Message::GetSourceLine(Local<Context> context) const { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); - auto msg = i::Handle<i::JSMessageObject>::cast(self); - RETURN_ESCAPED(Utils::ToLocal(msg->GetSourceLine())); -} - - -void Message::PrintCurrentStackTrace(Isolate* isolate, FILE* out) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i_isolate->PrintCurrentStackTrace(out); -} - - -// --- S t a c k T r a c e --- - -Local<StackFrame> StackTrace::GetFrame(Isolate* v8_isolate, - uint32_t index) const { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - EscapableHandleScope scope(v8_isolate); - auto obj = handle(Utils::OpenHandle(this)->get(index), isolate); - auto frame = i::Handle<i::StackTraceFrame>::cast(obj); - return scope.Escape(Utils::StackFrameToLocal(frame)); -} - -int StackTrace::GetFrameCount() const { - return Utils::OpenHandle(this)->length(); -} - - -Local<StackTrace> StackTrace::CurrentStackTrace( - Isolate* isolate, - int frame_limit, - StackTraceOptions options) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::FixedArray> stackTrace = - i_isolate->CaptureCurrentStackTrace(frame_limit, options); - return Utils::StackTraceToLocal(stackTrace); -} - - -// --- S t a c k F r a m e --- - -int StackFrame::GetLineNumber() const { - return i::StackTraceFrame::GetLineNumber(Utils::OpenHandle(this)); -} - - -int StackFrame::GetColumn() const { - return i::StackTraceFrame::GetColumnNumber(Utils::OpenHandle(this)); -} - - -int StackFrame::GetScriptId() const { - return i::StackTraceFrame::GetScriptId(Utils::OpenHandle(this)); -} - -Local<String> StackFrame::GetScriptName() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); - i::Handle<i::Object> name = - i::StackTraceFrame::GetFileName(Utils::OpenHandle(this)); - return name->IsString() - ? scope.Escape(Local<String>::Cast(Utils::ToLocal(name))) - : Local<String>(); -} - - -Local<String> StackFrame::GetScriptNameOrSourceURL() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); - i::Handle<i::Object> name = - i::StackTraceFrame::GetScriptNameOrSourceUrl(Utils::OpenHandle(this)); - return name->IsString() - ? scope.Escape(Local<String>::Cast(Utils::ToLocal(name))) - : Local<String>(); -} - - -Local<String> StackFrame::GetFunctionName() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); - i::Handle<i::Object> name = - i::StackTraceFrame::GetFunctionName(Utils::OpenHandle(this)); - return name->IsString() - ? scope.Escape(Local<String>::Cast(Utils::ToLocal(name))) - : Local<String>(); -} - -bool StackFrame::IsEval() const { - return i::StackTraceFrame::IsEval(Utils::OpenHandle(this)); -} - -bool StackFrame::IsConstructor() const { - return i::StackTraceFrame::IsConstructor(Utils::OpenHandle(this)); -} - -bool StackFrame::IsWasm() const { - return i::StackTraceFrame::IsWasm(Utils::OpenHandle(this)); -} - -// --- J S O N --- - -MaybeLocal<Value> JSON::Parse(Local<Context> context, - Local<String> json_string) { - PREPARE_FOR_EXECUTION(context, JSON, Parse, Value); - i::Handle<i::String> string = Utils::OpenHandle(*json_string); - i::Handle<i::String> source = i::String::Flatten(isolate, string); - i::Handle<i::Object> undefined = isolate->factory()->undefined_value(); - auto maybe = source->IsSeqOneByteString() - ? i::JsonParser<true>::Parse(isolate, source, undefined) - : i::JsonParser<false>::Parse(isolate, source, undefined); - Local<Value> result; - has_pending_exception = !ToLocal<Value>(maybe, &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - -MaybeLocal<String> JSON::Stringify(Local<Context> context, - Local<Value> json_object, - Local<String> gap) { - PREPARE_FOR_EXECUTION(context, JSON, Stringify, String); - i::Handle<i::Object> object = Utils::OpenHandle(*json_object); - i::Handle<i::Object> replacer = isolate->factory()->undefined_value(); - i::Handle<i::String> gap_string = gap.IsEmpty() - ? isolate->factory()->empty_string() - : Utils::OpenHandle(*gap); - i::Handle<i::Object> maybe; - has_pending_exception = - !i::JsonStringify(isolate, object, replacer, gap_string).ToHandle(&maybe); - RETURN_ON_FAILED_EXECUTION(String); - Local<String> result; - has_pending_exception = - !ToLocal<String>(i::Object::ToString(isolate, maybe), &result); - RETURN_ON_FAILED_EXECUTION(String); - RETURN_ESCAPED(result); -} - -// --- V a l u e S e r i a l i z a t i o n --- - -Maybe<bool> ValueSerializer::Delegate::WriteHostObject(Isolate* v8_isolate, - Local<Object> object) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->ScheduleThrow(*isolate->factory()->NewError( - isolate->error_function(), i::MessageTemplate::kDataCloneError, - Utils::OpenHandle(*object))); - return Nothing<bool>(); -} - -Maybe<uint32_t> ValueSerializer::Delegate::GetSharedArrayBufferId( - Isolate* v8_isolate, Local<SharedArrayBuffer> shared_array_buffer) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->ScheduleThrow(*isolate->factory()->NewError( - isolate->error_function(), i::MessageTemplate::kDataCloneError, - Utils::OpenHandle(*shared_array_buffer))); - return Nothing<uint32_t>(); -} - -Maybe<uint32_t> ValueSerializer::Delegate::GetWasmModuleTransferId( - Isolate* v8_isolate, Local<WasmModuleObject> module) { - return Nothing<uint32_t>(); -} - -void* ValueSerializer::Delegate::ReallocateBufferMemory(void* old_buffer, - size_t size, - size_t* actual_size) { - *actual_size = size; - return realloc(old_buffer, size); -} - -void ValueSerializer::Delegate::FreeBufferMemory(void* buffer) { - return free(buffer); -} - -struct ValueSerializer::PrivateData { - explicit PrivateData(i::Isolate* i, ValueSerializer::Delegate* delegate) - : isolate(i), serializer(i, delegate) {} - i::Isolate* isolate; - i::ValueSerializer serializer; -}; - -ValueSerializer::ValueSerializer(Isolate* isolate) - : ValueSerializer(isolate, nullptr) {} - -ValueSerializer::ValueSerializer(Isolate* isolate, Delegate* delegate) - : private_( - new PrivateData(reinterpret_cast<i::Isolate*>(isolate), delegate)) {} - -ValueSerializer::~ValueSerializer() { delete private_; } - -void ValueSerializer::WriteHeader() { private_->serializer.WriteHeader(); } - -void ValueSerializer::SetTreatArrayBufferViewsAsHostObjects(bool mode) { - private_->serializer.SetTreatArrayBufferViewsAsHostObjects(mode); -} - -Maybe<bool> ValueSerializer::WriteValue(Local<Context> context, - Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, ValueSerializer, WriteValue, Nothing<bool>(), - i::HandleScope); - i::Handle<i::Object> object = Utils::OpenHandle(*value); - Maybe<bool> result = private_->serializer.WriteObject(object); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -std::pair<uint8_t*, size_t> ValueSerializer::Release() { - return private_->serializer.Release(); -} - -void ValueSerializer::TransferArrayBuffer(uint32_t transfer_id, - Local<ArrayBuffer> array_buffer) { - private_->serializer.TransferArrayBuffer(transfer_id, - Utils::OpenHandle(*array_buffer)); -} - -void ValueSerializer::WriteUint32(uint32_t value) { - private_->serializer.WriteUint32(value); -} - -void ValueSerializer::WriteUint64(uint64_t value) { - private_->serializer.WriteUint64(value); -} - -void ValueSerializer::WriteDouble(double value) { - private_->serializer.WriteDouble(value); -} - -void ValueSerializer::WriteRawBytes(const void* source, size_t length) { - private_->serializer.WriteRawBytes(source, length); -} - -MaybeLocal<Object> ValueDeserializer::Delegate::ReadHostObject( - Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->ScheduleThrow(*isolate->factory()->NewError( - isolate->error_function(), - i::MessageTemplate::kDataCloneDeserializationError)); - return MaybeLocal<Object>(); -} - -MaybeLocal<WasmModuleObject> ValueDeserializer::Delegate::GetWasmModuleFromId( - Isolate* v8_isolate, uint32_t id) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->ScheduleThrow(*isolate->factory()->NewError( - isolate->error_function(), - i::MessageTemplate::kDataCloneDeserializationError)); - return MaybeLocal<WasmModuleObject>(); -} - -MaybeLocal<SharedArrayBuffer> -ValueDeserializer::Delegate::GetSharedArrayBufferFromId(Isolate* v8_isolate, - uint32_t id) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->ScheduleThrow(*isolate->factory()->NewError( - isolate->error_function(), - i::MessageTemplate::kDataCloneDeserializationError)); - return MaybeLocal<SharedArrayBuffer>(); -} - -struct ValueDeserializer::PrivateData { - PrivateData(i::Isolate* i, i::Vector<const uint8_t> data, Delegate* delegate) - : isolate(i), deserializer(i, data, delegate) {} - i::Isolate* isolate; - i::ValueDeserializer deserializer; - bool has_aborted = false; - bool supports_legacy_wire_format = false; -}; - -ValueDeserializer::ValueDeserializer(Isolate* isolate, const uint8_t* data, - size_t size) - : ValueDeserializer(isolate, data, size, nullptr) {} - -ValueDeserializer::ValueDeserializer(Isolate* isolate, const uint8_t* data, - size_t size, Delegate* delegate) { - if (base::IsValueInRangeForNumericType<int>(size)) { - private_ = new PrivateData( - reinterpret_cast<i::Isolate*>(isolate), - i::Vector<const uint8_t>(data, static_cast<int>(size)), delegate); - } else { - private_ = new PrivateData(reinterpret_cast<i::Isolate*>(isolate), - i::Vector<const uint8_t>(nullptr, 0), nullptr); - private_->has_aborted = true; - } -} - -ValueDeserializer::~ValueDeserializer() { delete private_; } - -Maybe<bool> ValueDeserializer::ReadHeader(Local<Context> context) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, ValueDeserializer, ReadHeader, - Nothing<bool>(), i::HandleScope); - - // We could have aborted during the constructor. - // If so, ReadHeader is where we report it. - if (private_->has_aborted) { - isolate->Throw(*isolate->factory()->NewError( - i::MessageTemplate::kDataCloneDeserializationError)); - has_pending_exception = true; - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - } - - bool read_header = false; - has_pending_exception = !private_->deserializer.ReadHeader().To(&read_header); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - DCHECK(read_header); - - static const uint32_t kMinimumNonLegacyVersion = 13; - if (GetWireFormatVersion() < kMinimumNonLegacyVersion && - !private_->supports_legacy_wire_format) { - isolate->Throw(*isolate->factory()->NewError( - i::MessageTemplate::kDataCloneDeserializationVersionError)); - has_pending_exception = true; - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - } - - return Just(true); -} - -void ValueDeserializer::SetSupportsLegacyWireFormat( - bool supports_legacy_wire_format) { - private_->supports_legacy_wire_format = supports_legacy_wire_format; -} - -void ValueDeserializer::SetExpectInlineWasm(bool expect_inline_wasm) { - private_->deserializer.set_expect_inline_wasm(expect_inline_wasm); -} - -uint32_t ValueDeserializer::GetWireFormatVersion() const { - CHECK(!private_->has_aborted); - return private_->deserializer.GetWireFormatVersion(); -} - -MaybeLocal<Value> ValueDeserializer::ReadValue(Local<Context> context) { - CHECK(!private_->has_aborted); - PREPARE_FOR_EXECUTION(context, ValueDeserializer, ReadValue, Value); - i::MaybeHandle<i::Object> result; - if (GetWireFormatVersion() > 0) { - result = private_->deserializer.ReadObject(); - } else { - result = - private_->deserializer.ReadObjectUsingEntireBufferForLegacyFormat(); - } - Local<Value> value; - has_pending_exception = !ToLocal(result, &value); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(value); -} - -void ValueDeserializer::TransferArrayBuffer(uint32_t transfer_id, - Local<ArrayBuffer> array_buffer) { - CHECK(!private_->has_aborted); - private_->deserializer.TransferArrayBuffer(transfer_id, - Utils::OpenHandle(*array_buffer)); -} - -void ValueDeserializer::TransferSharedArrayBuffer( - uint32_t transfer_id, Local<SharedArrayBuffer> shared_array_buffer) { - CHECK(!private_->has_aborted); - private_->deserializer.TransferArrayBuffer( - transfer_id, Utils::OpenHandle(*shared_array_buffer)); -} - -bool ValueDeserializer::ReadUint32(uint32_t* value) { - return private_->deserializer.ReadUint32(value); -} - -bool ValueDeserializer::ReadUint64(uint64_t* value) { - return private_->deserializer.ReadUint64(value); -} - -bool ValueDeserializer::ReadDouble(double* value) { - return private_->deserializer.ReadDouble(value); -} - -bool ValueDeserializer::ReadRawBytes(size_t length, const void** data) { - return private_->deserializer.ReadRawBytes(length, data); -} - -// --- D a t a --- - -bool Value::FullIsUndefined() const { - i::Handle<i::Object> object = Utils::OpenHandle(this); - bool result = object->IsUndefined(); - DCHECK_EQ(result, QuickIsUndefined()); - return result; -} - - -bool Value::FullIsNull() const { - i::Handle<i::Object> object = Utils::OpenHandle(this); - bool result = object->IsNull(); - DCHECK_EQ(result, QuickIsNull()); - return result; -} - - -bool Value::IsTrue() const { - i::Handle<i::Object> object = Utils::OpenHandle(this); - if (object->IsSmi()) return false; - return object->IsTrue(); -} - - -bool Value::IsFalse() const { - i::Handle<i::Object> object = Utils::OpenHandle(this); - if (object->IsSmi()) return false; - return object->IsFalse(); -} - - -bool Value::IsFunction() const { return Utils::OpenHandle(this)->IsCallable(); } - - -bool Value::IsName() const { - return Utils::OpenHandle(this)->IsName(); -} - - -bool Value::FullIsString() const { - bool result = Utils::OpenHandle(this)->IsString(); - DCHECK_EQ(result, QuickIsString()); - return result; -} - - -bool Value::IsSymbol() const { - return Utils::OpenHandle(this)->IsSymbol(); -} - - -bool Value::IsArray() const { - return Utils::OpenHandle(this)->IsJSArray(); -} - - -bool Value::IsArrayBuffer() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - return obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared(); -} - - -bool Value::IsArrayBufferView() const { - return Utils::OpenHandle(this)->IsJSArrayBufferView(); -} - - -bool Value::IsTypedArray() const { - return Utils::OpenHandle(this)->IsJSTypedArray(); -} - -#define VALUE_IS_TYPED_ARRAY(Type, typeName, TYPE, ctype) \ - bool Value::Is##Type##Array() const { \ - i::Handle<i::Object> obj = Utils::OpenHandle(this); \ - return obj->IsJSTypedArray() && \ - i::JSTypedArray::cast(*obj)->type() == i::kExternal##Type##Array; \ - } - -TYPED_ARRAYS(VALUE_IS_TYPED_ARRAY) - -#undef VALUE_IS_TYPED_ARRAY - - -bool Value::IsDataView() const { - return Utils::OpenHandle(this)->IsJSDataView(); -} - - -bool Value::IsSharedArrayBuffer() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - return obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared(); -} - - -bool Value::IsObject() const { return Utils::OpenHandle(this)->IsJSReceiver(); } - - -bool Value::IsNumber() const { - return Utils::OpenHandle(this)->IsNumber(); -} - -bool Value::IsBigInt() const { return Utils::OpenHandle(this)->IsBigInt(); } - -bool Value::IsProxy() const { return Utils::OpenHandle(this)->IsJSProxy(); } - -#define VALUE_IS_SPECIFIC_TYPE(Type, Check) \ - bool Value::Is##Type() const { \ - i::Handle<i::Object> obj = Utils::OpenHandle(this); \ - return obj->Is##Check(); \ - } - -VALUE_IS_SPECIFIC_TYPE(ArgumentsObject, JSArgumentsObject) -VALUE_IS_SPECIFIC_TYPE(BigIntObject, BigIntWrapper) -VALUE_IS_SPECIFIC_TYPE(BooleanObject, BooleanWrapper) -VALUE_IS_SPECIFIC_TYPE(NumberObject, NumberWrapper) -VALUE_IS_SPECIFIC_TYPE(StringObject, StringWrapper) -VALUE_IS_SPECIFIC_TYPE(SymbolObject, SymbolWrapper) -VALUE_IS_SPECIFIC_TYPE(Date, JSDate) -VALUE_IS_SPECIFIC_TYPE(Map, JSMap) -VALUE_IS_SPECIFIC_TYPE(Set, JSSet) -VALUE_IS_SPECIFIC_TYPE(WeakMap, JSWeakMap) -VALUE_IS_SPECIFIC_TYPE(WeakSet, JSWeakSet) -VALUE_IS_SPECIFIC_TYPE(WebAssemblyCompiledModule, WasmModuleObject) - -#undef VALUE_IS_SPECIFIC_TYPE - - -bool Value::IsBoolean() const { - return Utils::OpenHandle(this)->IsBoolean(); -} - -bool Value::IsExternal() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (!obj->IsHeapObject()) return false; - i::Handle<i::HeapObject> heap_obj = i::Handle<i::HeapObject>::cast(obj); - // Check the instance type is JS_OBJECT (instance type of Externals) before - // attempting to get the Isolate since that guarantees the object is writable - // and GetIsolate will work. - if (heap_obj->map()->instance_type() != i::JS_OBJECT_TYPE) return false; - i::Isolate* isolate = i::JSObject::cast(*heap_obj)->GetIsolate(); - return heap_obj->IsExternal(isolate); -} - - -bool Value::IsInt32() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsSmi()) return true; - if (obj->IsNumber()) { - return i::IsInt32Double(obj->Number()); - } - return false; -} - - -bool Value::IsUint32() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsSmi()) return i::Smi::ToInt(*obj) >= 0; - if (obj->IsNumber()) { - double value = obj->Number(); - return !i::IsMinusZero(value) && - value >= 0 && - value <= i::kMaxUInt32 && - value == i::FastUI2D(i::FastD2UI(value)); - } - return false; -} - - -bool Value::IsNativeError() const { - return Utils::OpenHandle(this)->IsJSError(); -} - - -bool Value::IsRegExp() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - return obj->IsJSRegExp(); -} - -bool Value::IsAsyncFunction() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (!obj->IsJSFunction()) return false; - i::Handle<i::JSFunction> func = i::Handle<i::JSFunction>::cast(obj); - return i::IsAsyncFunction(func->shared()->kind()); -} - -bool Value::IsGeneratorFunction() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (!obj->IsJSFunction()) return false; - i::Handle<i::JSFunction> func = i::Handle<i::JSFunction>::cast(obj); - return i::IsGeneratorFunction(func->shared()->kind()); -} - - -bool Value::IsGeneratorObject() const { - return Utils::OpenHandle(this)->IsJSGeneratorObject(); -} - - -bool Value::IsMapIterator() const { - return Utils::OpenHandle(this)->IsJSMapIterator(); -} - - -bool Value::IsSetIterator() const { - return Utils::OpenHandle(this)->IsJSSetIterator(); -} - -bool Value::IsPromise() const { return Utils::OpenHandle(this)->IsJSPromise(); } - -bool Value::IsModuleNamespaceObject() const { - return Utils::OpenHandle(this)->IsJSModuleNamespace(); -} - -MaybeLocal<String> Value::ToString(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsString()) return ToApiHandle<String>(obj); - PREPARE_FOR_EXECUTION(context, Object, ToString, String); - Local<String> result; - has_pending_exception = - !ToLocal<String>(i::Object::ToString(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(String); - RETURN_ESCAPED(result); -} - - -Local<String> Value::ToString(Isolate* isolate) const { - RETURN_TO_LOCAL_UNCHECKED(ToString(isolate->GetCurrentContext()), String); -} - - -MaybeLocal<String> Value::ToDetailString(Local<Context> context) const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsString()) return ToApiHandle<String>(obj); - PREPARE_FOR_EXECUTION(context, Object, ToDetailString, String); - Local<String> result = - Utils::ToLocal(i::Object::NoSideEffectsToString(isolate, obj)); - RETURN_ON_FAILED_EXECUTION(String); - RETURN_ESCAPED(result); -} - - -MaybeLocal<Object> Value::ToObject(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsJSReceiver()) return ToApiHandle<Object>(obj); - PREPARE_FOR_EXECUTION(context, Object, ToObject, Object); - Local<Object> result; - has_pending_exception = - !ToLocal<Object>(i::Object::ToObject(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(Object); - RETURN_ESCAPED(result); -} - - -Local<v8::Object> Value::ToObject(Isolate* isolate) const { - RETURN_TO_LOCAL_UNCHECKED(ToObject(isolate->GetCurrentContext()), Object); -} - -MaybeLocal<BigInt> Value::ToBigInt(Local<Context> context) const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsBigInt()) return ToApiHandle<BigInt>(obj); - PREPARE_FOR_EXECUTION(context, Object, ToBigInt, BigInt); - Local<BigInt> result; - has_pending_exception = - !ToLocal<BigInt>(i::BigInt::FromObject(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(BigInt); - RETURN_ESCAPED(result); -} - -bool Value::BooleanValue(Isolate* v8_isolate) const { - return Utils::OpenHandle(this)->BooleanValue( - reinterpret_cast<i::Isolate*>(v8_isolate)); -} - -MaybeLocal<Boolean> Value::ToBoolean(Local<Context> context) const { - return ToBoolean(context->GetIsolate()); -} - - -Local<Boolean> Value::ToBoolean(Isolate* v8_isolate) const { - auto isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - return ToApiHandle<Boolean>( - isolate->factory()->ToBoolean(BooleanValue(v8_isolate))); -} - - -MaybeLocal<Number> Value::ToNumber(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsNumber()) return ToApiHandle<Number>(obj); - PREPARE_FOR_EXECUTION(context, Object, ToNumber, Number); - Local<Number> result; - has_pending_exception = - !ToLocal<Number>(i::Object::ToNumber(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(Number); - RETURN_ESCAPED(result); -} - - -Local<Number> Value::ToNumber(Isolate* isolate) const { - RETURN_TO_LOCAL_UNCHECKED(ToNumber(isolate->GetCurrentContext()), Number); -} - - -MaybeLocal<Integer> Value::ToInteger(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsSmi()) return ToApiHandle<Integer>(obj); - PREPARE_FOR_EXECUTION(context, Object, ToInteger, Integer); - Local<Integer> result; - has_pending_exception = - !ToLocal<Integer>(i::Object::ToInteger(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(Integer); - RETURN_ESCAPED(result); -} - - -Local<Integer> Value::ToInteger(Isolate* isolate) const { - RETURN_TO_LOCAL_UNCHECKED(ToInteger(isolate->GetCurrentContext()), Integer); -} - - -MaybeLocal<Int32> Value::ToInt32(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsSmi()) return ToApiHandle<Int32>(obj); - Local<Int32> result; - PREPARE_FOR_EXECUTION(context, Object, ToInt32, Int32); - has_pending_exception = - !ToLocal<Int32>(i::Object::ToInt32(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(Int32); - RETURN_ESCAPED(result); -} - - -Local<Int32> Value::ToInt32(Isolate* isolate) const { - RETURN_TO_LOCAL_UNCHECKED(ToInt32(isolate->GetCurrentContext()), Int32); -} - - -MaybeLocal<Uint32> Value::ToUint32(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsSmi()) return ToApiHandle<Uint32>(obj); - Local<Uint32> result; - PREPARE_FOR_EXECUTION(context, Object, ToUint32, Uint32); - has_pending_exception = - !ToLocal<Uint32>(i::Object::ToUint32(isolate, obj), &result); - RETURN_ON_FAILED_EXECUTION(Uint32); - RETURN_ESCAPED(result); -} - -i::Isolate* i::IsolateFromNeverReadOnlySpaceObject(i::Address obj) { - return i::NeverReadOnlySpaceObject::GetIsolate( - i::HeapObject::cast(i::Object(obj))); -} - -bool i::ShouldThrowOnError(i::Isolate* isolate) { - return i::GetShouldThrow(isolate, Nothing<i::ShouldThrow>()) == - i::ShouldThrow::kThrowOnError; -} - -void i::Internals::CheckInitializedImpl(v8::Isolate* external_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); - Utils::ApiCheck(isolate != nullptr && !isolate->IsDead(), - "v8::internal::Internals::CheckInitialized", - "Isolate is not initialized or V8 has died"); -} - - -void External::CheckCast(v8::Value* that) { - Utils::ApiCheck(that->IsExternal(), "v8::External::Cast", - "Could not convert to external"); -} - - -void v8::Object::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSReceiver(), "v8::Object::Cast", - "Could not convert to object"); -} - - -void v8::Function::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsCallable(), "v8::Function::Cast", - "Could not convert to function"); -} - - -void v8::Boolean::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsBoolean(), "v8::Boolean::Cast", - "Could not convert to boolean"); -} - - -void v8::Name::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsName(), "v8::Name::Cast", "Could not convert to name"); -} - - -void v8::String::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsString(), "v8::String::Cast", - "Could not convert to string"); -} - - -void v8::Symbol::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsSymbol(), "v8::Symbol::Cast", - "Could not convert to symbol"); -} - - -void v8::Private::CheckCast(v8::Data* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsSymbol() && - i::Handle<i::Symbol>::cast(obj)->is_private(), - "v8::Private::Cast", - "Could not convert to private"); -} - - -void v8::Number::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsNumber(), - "v8::Number::Cast()", - "Could not convert to number"); -} - - -void v8::Integer::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsNumber(), "v8::Integer::Cast", - "Could not convert to number"); -} - - -void v8::Int32::CheckCast(v8::Value* that) { - Utils::ApiCheck(that->IsInt32(), "v8::Int32::Cast", - "Could not convert to 32-bit signed integer"); -} - - -void v8::Uint32::CheckCast(v8::Value* that) { - Utils::ApiCheck(that->IsUint32(), "v8::Uint32::Cast", - "Could not convert to 32-bit unsigned integer"); -} - -void v8::BigInt::CheckCast(v8::Value* that) { - Utils::ApiCheck(that->IsBigInt(), "v8::BigInt::Cast", - "Could not convert to BigInt"); -} - -void v8::Array::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSArray(), "v8::Array::Cast", - "Could not convert to array"); -} - - -void v8::Map::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSMap(), "v8::Map::Cast", "Could not convert to Map"); -} - - -void v8::Set::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSSet(), "v8_Set_Cast", "Could not convert to Set"); -} - - -void v8::Promise::CheckCast(Value* that) { - Utils::ApiCheck(that->IsPromise(), "v8::Promise::Cast", - "Could not convert to promise"); -} - - -void v8::Promise::Resolver::CheckCast(Value* that) { - Utils::ApiCheck(that->IsPromise(), "v8::Promise::Resolver::Cast", - "Could not convert to promise resolver"); -} - - -void v8::Proxy::CheckCast(Value* that) { - Utils::ApiCheck(that->IsProxy(), "v8::Proxy::Cast", - "Could not convert to proxy"); -} - -void v8::WasmModuleObject::CheckCast(Value* that) { - Utils::ApiCheck(that->IsWebAssemblyCompiledModule(), - "v8::WasmModuleObject::Cast", - "Could not convert to wasm module object"); -} - -void v8::ArrayBuffer::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck( - obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared(), - "v8::ArrayBuffer::Cast()", "Could not convert to ArrayBuffer"); -} - - -void v8::ArrayBufferView::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSArrayBufferView(), - "v8::ArrayBufferView::Cast()", - "Could not convert to ArrayBufferView"); -} - - -void v8::TypedArray::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSTypedArray(), - "v8::TypedArray::Cast()", - "Could not convert to TypedArray"); -} - -#define CHECK_TYPED_ARRAY_CAST(Type, typeName, TYPE, ctype) \ - void v8::Type##Array::CheckCast(Value* that) { \ - i::Handle<i::Object> obj = Utils::OpenHandle(that); \ - Utils::ApiCheck( \ - obj->IsJSTypedArray() && \ - i::JSTypedArray::cast(*obj)->type() == i::kExternal##Type##Array, \ - "v8::" #Type "Array::Cast()", "Could not convert to " #Type "Array"); \ - } - -TYPED_ARRAYS(CHECK_TYPED_ARRAY_CAST) - -#undef CHECK_TYPED_ARRAY_CAST - - -void v8::DataView::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSDataView(), - "v8::DataView::Cast()", - "Could not convert to DataView"); -} - - -void v8::SharedArrayBuffer::CheckCast(Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck( - obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared(), - "v8::SharedArrayBuffer::Cast()", - "Could not convert to SharedArrayBuffer"); -} - - -void v8::Date::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSDate(), "v8::Date::Cast()", - "Could not convert to date"); -} - - -void v8::StringObject::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsStringWrapper(), "v8::StringObject::Cast()", - "Could not convert to StringObject"); -} - - -void v8::SymbolObject::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsSymbolWrapper(), "v8::SymbolObject::Cast()", - "Could not convert to SymbolObject"); -} - - -void v8::NumberObject::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsNumberWrapper(), "v8::NumberObject::Cast()", - "Could not convert to NumberObject"); -} - -void v8::BigIntObject::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsBigIntWrapper(), "v8::BigIntObject::Cast()", - "Could not convert to BigIntObject"); -} - -void v8::BooleanObject::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsBooleanWrapper(), "v8::BooleanObject::Cast()", - "Could not convert to BooleanObject"); -} - - -void v8::RegExp::CheckCast(v8::Value* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsJSRegExp(), - "v8::RegExp::Cast()", - "Could not convert to regular expression"); -} - - -Maybe<bool> Value::BooleanValue(Local<Context> context) const { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - return Just(Utils::OpenHandle(this)->BooleanValue(isolate)); -} - - -Maybe<double> Value::NumberValue(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsNumber()) return Just(obj->Number()); - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Value, NumberValue, Nothing<double>(), - i::HandleScope); - i::Handle<i::Object> num; - has_pending_exception = !i::Object::ToNumber(isolate, obj).ToHandle(&num); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(double); - return Just(num->Number()); -} - - -Maybe<int64_t> Value::IntegerValue(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsNumber()) { - return Just(NumberToInt64(*obj)); - } - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Value, IntegerValue, Nothing<int64_t>(), - i::HandleScope); - i::Handle<i::Object> num; - has_pending_exception = !i::Object::ToInteger(isolate, obj).ToHandle(&num); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int64_t); - return Just(NumberToInt64(*num)); -} - - -Maybe<int32_t> Value::Int32Value(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsNumber()) return Just(NumberToInt32(*obj)); - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Value, Int32Value, Nothing<int32_t>(), - i::HandleScope); - i::Handle<i::Object> num; - has_pending_exception = !i::Object::ToInt32(isolate, obj).ToHandle(&num); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int32_t); - return Just(num->IsSmi() ? i::Smi::ToInt(*num) - : static_cast<int32_t>(num->Number())); -} - - -Maybe<uint32_t> Value::Uint32Value(Local<Context> context) const { - auto obj = Utils::OpenHandle(this); - if (obj->IsNumber()) return Just(NumberToUint32(*obj)); - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Value, Uint32Value, Nothing<uint32_t>(), - i::HandleScope); - i::Handle<i::Object> num; - has_pending_exception = !i::Object::ToUint32(isolate, obj).ToHandle(&num); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(uint32_t); - return Just(num->IsSmi() ? static_cast<uint32_t>(i::Smi::ToInt(*num)) - : static_cast<uint32_t>(num->Number())); -} - - -MaybeLocal<Uint32> Value::ToArrayIndex(Local<Context> context) const { - auto self = Utils::OpenHandle(this); - if (self->IsSmi()) { - if (i::Smi::ToInt(*self) >= 0) return Utils::Uint32ToLocal(self); - return Local<Uint32>(); - } - PREPARE_FOR_EXECUTION(context, Object, ToArrayIndex, Uint32); - i::Handle<i::Object> string_obj; - has_pending_exception = - !i::Object::ToString(isolate, self).ToHandle(&string_obj); - RETURN_ON_FAILED_EXECUTION(Uint32); - i::Handle<i::String> str = i::Handle<i::String>::cast(string_obj); - uint32_t index; - if (str->AsArrayIndex(&index)) { - i::Handle<i::Object> value; - if (index <= static_cast<uint32_t>(i::Smi::kMaxValue)) { - value = i::Handle<i::Object>(i::Smi::FromInt(index), isolate); - } else { - value = isolate->factory()->NewNumber(index); - } - RETURN_ESCAPED(Utils::Uint32ToLocal(value)); - } - return Local<Uint32>(); -} - - -Maybe<bool> Value::Equals(Local<Context> context, Local<Value> that) const { - i::Isolate* isolate = Utils::OpenHandle(*context)->GetIsolate(); - auto self = Utils::OpenHandle(this); - auto other = Utils::OpenHandle(*that); - return i::Object::Equals(isolate, self, other); -} - - -bool Value::StrictEquals(Local<Value> that) const { - auto self = Utils::OpenHandle(this); - auto other = Utils::OpenHandle(*that); - return self->StrictEquals(*other); -} - - -bool Value::SameValue(Local<Value> that) const { - auto self = Utils::OpenHandle(this); - auto other = Utils::OpenHandle(*that); - return self->SameValue(*other); -} - -Local<String> Value::TypeOf(v8::Isolate* external_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - LOG_API(isolate, Value, TypeOf); - return Utils::ToLocal(i::Object::TypeOf(isolate, Utils::OpenHandle(this))); -} - -Maybe<bool> Value::InstanceOf(v8::Local<v8::Context> context, - v8::Local<v8::Object> object) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Value, InstanceOf, Nothing<bool>(), - i::HandleScope); - auto left = Utils::OpenHandle(this); - auto right = Utils::OpenHandle(*object); - i::Handle<i::Object> result; - has_pending_exception = - !i::Object::InstanceOf(isolate, left, right).ToHandle(&result); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(result->IsTrue(isolate)); -} - -Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context, - v8::Local<Value> key, v8::Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, Set, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - auto value_obj = Utils::OpenHandle(*value); - has_pending_exception = - i::Runtime::SetObjectProperty(isolate, self, key_obj, value_obj, - i::StoreOrigin::kMaybeKeyed, - Just(i::ShouldThrow::kDontThrow)) - .is_null(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - - -bool v8::Object::Set(v8::Local<Value> key, v8::Local<Value> value) { - auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this)); - return Set(context, key, value).FromMaybe(false); -} - - -Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context, uint32_t index, - v8::Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, Set, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - auto value_obj = Utils::OpenHandle(*value); - has_pending_exception = i::Object::SetElement(isolate, self, index, value_obj, - i::ShouldThrow::kDontThrow) - .is_null(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - - -bool v8::Object::Set(uint32_t index, v8::Local<Value> value) { - auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this)); - return Set(context, index, value).FromMaybe(false); -} - - -Maybe<bool> v8::Object::CreateDataProperty(v8::Local<v8::Context> context, - v8::Local<Name> key, - v8::Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, CreateDataProperty, Nothing<bool>(), - i::HandleScope); - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); - i::Handle<i::Object> value_obj = Utils::OpenHandle(*value); - - Maybe<bool> result = i::JSReceiver::CreateDataProperty( - isolate, self, key_obj, value_obj, Just(i::kDontThrow)); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - - -Maybe<bool> v8::Object::CreateDataProperty(v8::Local<v8::Context> context, - uint32_t index, - v8::Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, CreateDataProperty, Nothing<bool>(), - i::HandleScope); - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - i::Handle<i::Object> value_obj = Utils::OpenHandle(*value); - - i::LookupIterator it(isolate, self, index, self, i::LookupIterator::OWN); - Maybe<bool> result = - i::JSReceiver::CreateDataProperty(&it, value_obj, Just(i::kDontThrow)); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -struct v8::PropertyDescriptor::PrivateData { - PrivateData() : desc() {} - i::PropertyDescriptor desc; -}; - -v8::PropertyDescriptor::PropertyDescriptor() : private_(new PrivateData()) {} - -// DataDescriptor -v8::PropertyDescriptor::PropertyDescriptor(v8::Local<v8::Value> value) - : private_(new PrivateData()) { - private_->desc.set_value(Utils::OpenHandle(*value, true)); -} - -// DataDescriptor with writable field -v8::PropertyDescriptor::PropertyDescriptor(v8::Local<v8::Value> value, - bool writable) - : private_(new PrivateData()) { - private_->desc.set_value(Utils::OpenHandle(*value, true)); - private_->desc.set_writable(writable); -} - -// AccessorDescriptor -v8::PropertyDescriptor::PropertyDescriptor(v8::Local<v8::Value> get, - v8::Local<v8::Value> set) - : private_(new PrivateData()) { - DCHECK(get.IsEmpty() || get->IsUndefined() || get->IsFunction()); - DCHECK(set.IsEmpty() || set->IsUndefined() || set->IsFunction()); - private_->desc.set_get(Utils::OpenHandle(*get, true)); - private_->desc.set_set(Utils::OpenHandle(*set, true)); -} - -v8::PropertyDescriptor::~PropertyDescriptor() { delete private_; } - -v8::Local<Value> v8::PropertyDescriptor::value() const { - DCHECK(private_->desc.has_value()); - return Utils::ToLocal(private_->desc.value()); -} - -v8::Local<Value> v8::PropertyDescriptor::get() const { - DCHECK(private_->desc.has_get()); - return Utils::ToLocal(private_->desc.get()); -} - -v8::Local<Value> v8::PropertyDescriptor::set() const { - DCHECK(private_->desc.has_set()); - return Utils::ToLocal(private_->desc.set()); -} - -bool v8::PropertyDescriptor::has_value() const { - return private_->desc.has_value(); -} -bool v8::PropertyDescriptor::has_get() const { - return private_->desc.has_get(); -} -bool v8::PropertyDescriptor::has_set() const { - return private_->desc.has_set(); -} - -bool v8::PropertyDescriptor::writable() const { - DCHECK(private_->desc.has_writable()); - return private_->desc.writable(); -} - -bool v8::PropertyDescriptor::has_writable() const { - return private_->desc.has_writable(); -} - -void v8::PropertyDescriptor::set_enumerable(bool enumerable) { - private_->desc.set_enumerable(enumerable); -} - -bool v8::PropertyDescriptor::enumerable() const { - DCHECK(private_->desc.has_enumerable()); - return private_->desc.enumerable(); -} - -bool v8::PropertyDescriptor::has_enumerable() const { - return private_->desc.has_enumerable(); -} - -void v8::PropertyDescriptor::set_configurable(bool configurable) { - private_->desc.set_configurable(configurable); -} - -bool v8::PropertyDescriptor::configurable() const { - DCHECK(private_->desc.has_configurable()); - return private_->desc.configurable(); -} - -bool v8::PropertyDescriptor::has_configurable() const { - return private_->desc.has_configurable(); -} - -Maybe<bool> v8::Object::DefineOwnProperty(v8::Local<v8::Context> context, - v8::Local<Name> key, - v8::Local<Value> value, - v8::PropertyAttribute attributes) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); - i::Handle<i::Object> value_obj = Utils::OpenHandle(*value); - - i::PropertyDescriptor desc; - desc.set_writable(!(attributes & v8::ReadOnly)); - desc.set_enumerable(!(attributes & v8::DontEnum)); - desc.set_configurable(!(attributes & v8::DontDelete)); - desc.set_value(value_obj); - - if (self->IsJSProxy()) { - ENTER_V8(isolate, context, Object, DefineOwnProperty, Nothing<bool>(), - i::HandleScope); - Maybe<bool> success = i::JSReceiver::DefineOwnProperty( - isolate, self, key_obj, &desc, Just(i::kDontThrow)); - // Even though we said kDontThrow, there might be accessors that do throw. - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return success; - } else { - // If it's not a JSProxy, i::JSReceiver::DefineOwnProperty should never run - // a script. - ENTER_V8_NO_SCRIPT(isolate, context, Object, DefineOwnProperty, - Nothing<bool>(), i::HandleScope); - Maybe<bool> success = i::JSReceiver::DefineOwnProperty( - isolate, self, key_obj, &desc, Just(i::kDontThrow)); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return success; - } -} - -Maybe<bool> v8::Object::DefineProperty(v8::Local<v8::Context> context, - v8::Local<Name> key, - PropertyDescriptor& descriptor) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, DefineOwnProperty, Nothing<bool>(), - i::HandleScope); - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); - - Maybe<bool> success = i::JSReceiver::DefineOwnProperty( - isolate, self, key_obj, &descriptor.get_private()->desc, - Just(i::kDontThrow)); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return success; -} - -Maybe<bool> v8::Object::SetPrivate(Local<Context> context, Local<Private> key, - Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, SetPrivate, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(reinterpret_cast<Name*>(*key)); - auto value_obj = Utils::OpenHandle(*value); - if (self->IsJSProxy()) { - i::PropertyDescriptor desc; - desc.set_writable(true); - desc.set_enumerable(false); - desc.set_configurable(true); - desc.set_value(value_obj); - return i::JSProxy::SetPrivateSymbol( - isolate, i::Handle<i::JSProxy>::cast(self), - i::Handle<i::Symbol>::cast(key_obj), &desc, Just(i::kDontThrow)); - } - auto js_object = i::Handle<i::JSObject>::cast(self); - i::LookupIterator it(js_object, key_obj, js_object); - has_pending_exception = i::JSObject::DefineOwnPropertyIgnoreAttributes( - &it, value_obj, i::DONT_ENUM) - .is_null(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - - -MaybeLocal<Value> v8::Object::Get(Local<v8::Context> context, - Local<Value> key) { - PREPARE_FOR_EXECUTION(context, Object, Get, Value); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - i::Handle<i::Object> result; - has_pending_exception = - !i::Runtime::GetObjectProperty(isolate, self, key_obj).ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(Utils::ToLocal(result)); -} - - -Local<Value> v8::Object::Get(v8::Local<Value> key) { - auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this)); - RETURN_TO_LOCAL_UNCHECKED(Get(context, key), Value); -} - - -MaybeLocal<Value> v8::Object::Get(Local<Context> context, uint32_t index) { - PREPARE_FOR_EXECUTION(context, Object, Get, Value); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - has_pending_exception = - !i::JSReceiver::GetElement(isolate, self, index).ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(Utils::ToLocal(result)); -} - - -Local<Value> v8::Object::Get(uint32_t index) { - auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this)); - RETURN_TO_LOCAL_UNCHECKED(Get(context, index), Value); -} - - -MaybeLocal<Value> v8::Object::GetPrivate(Local<Context> context, - Local<Private> key) { - return Get(context, Local<Value>(reinterpret_cast<Value*>(*key))); -} - - -Maybe<PropertyAttribute> v8::Object::GetPropertyAttributes( - Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, GetPropertyAttributes, - Nothing<PropertyAttribute>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - if (!key_obj->IsName()) { - has_pending_exception = - !i::Object::ToString(isolate, key_obj).ToHandle(&key_obj); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); - } - auto key_name = i::Handle<i::Name>::cast(key_obj); - auto result = i::JSReceiver::GetPropertyAttributes(self, key_name); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); - if (result.FromJust() == i::ABSENT) { - return Just(static_cast<PropertyAttribute>(i::NONE)); - } - return Just(static_cast<PropertyAttribute>(result.FromJust())); -} - - -MaybeLocal<Value> v8::Object::GetOwnPropertyDescriptor(Local<Context> context, - Local<Name> key) { - PREPARE_FOR_EXECUTION(context, Object, GetOwnPropertyDescriptor, Value); - i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); - i::Handle<i::Name> key_name = Utils::OpenHandle(*key); - - i::PropertyDescriptor desc; - Maybe<bool> found = - i::JSReceiver::GetOwnPropertyDescriptor(isolate, obj, key_name, &desc); - has_pending_exception = found.IsNothing(); - RETURN_ON_FAILED_EXECUTION(Value); - if (!found.FromJust()) { - return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); - } - RETURN_ESCAPED(Utils::ToLocal(desc.ToObject(isolate))); -} - - -Local<Value> v8::Object::GetPrototype() { - auto isolate = Utils::OpenHandle(this)->GetIsolate(); - auto self = Utils::OpenHandle(this); - i::PrototypeIterator iter(isolate, self); - return Utils::ToLocal(i::PrototypeIterator::GetCurrent(iter)); -} - - -Maybe<bool> v8::Object::SetPrototype(Local<Context> context, - Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, SetPrototype, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto value_obj = Utils::OpenHandle(*value); - // We do not allow exceptions thrown while setting the prototype - // to propagate outside. - TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate)); - auto result = - i::JSReceiver::SetPrototype(self, value_obj, false, i::kThrowOnError); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - - -Local<Object> v8::Object::FindInstanceInPrototypeChain( - v8::Local<FunctionTemplate> tmpl) { - auto self = Utils::OpenHandle(this); - auto isolate = self->GetIsolate(); - i::PrototypeIterator iter(isolate, *self, i::kStartAtReceiver); - auto tmpl_info = *Utils::OpenHandle(*tmpl); - while (!tmpl_info->IsTemplateFor(iter.GetCurrent<i::JSObject>())) { - iter.Advance(); - if (iter.IsAtEnd()) return Local<Object>(); - if (!iter.GetCurrent()->IsJSObject()) return Local<Object>(); - } - // IsTemplateFor() ensures that iter.GetCurrent() can't be a Proxy here. - return Utils::ToLocal(i::handle(iter.GetCurrent<i::JSObject>(), isolate)); -} - -MaybeLocal<Array> v8::Object::GetPropertyNames(Local<Context> context) { - return GetPropertyNames( - context, v8::KeyCollectionMode::kIncludePrototypes, - static_cast<v8::PropertyFilter>(ONLY_ENUMERABLE | SKIP_SYMBOLS), - v8::IndexFilter::kIncludeIndices); -} - -MaybeLocal<Array> v8::Object::GetPropertyNames( - Local<Context> context, KeyCollectionMode mode, - PropertyFilter property_filter, IndexFilter index_filter, - KeyConversionMode key_conversion) { - PREPARE_FOR_EXECUTION(context, Object, GetPropertyNames, Array); - auto self = Utils::OpenHandle(this); - i::Handle<i::FixedArray> value; - i::KeyAccumulator accumulator( - isolate, static_cast<i::KeyCollectionMode>(mode), - static_cast<i::PropertyFilter>(property_filter)); - accumulator.set_skip_indices(index_filter == IndexFilter::kSkipIndices); - has_pending_exception = accumulator.CollectKeys(self, self).IsNothing(); - RETURN_ON_FAILED_EXECUTION(Array); - value = - accumulator.GetKeys(static_cast<i::GetKeysConversion>(key_conversion)); - DCHECK(self->map()->EnumLength() == i::kInvalidEnumCacheSentinel || - self->map()->EnumLength() == 0 || - self->map()->instance_descriptors()->enum_cache()->keys() != *value); - auto result = isolate->factory()->NewJSArrayWithElements(value); - RETURN_ESCAPED(Utils::ToLocal(result)); -} - -MaybeLocal<Array> v8::Object::GetOwnPropertyNames(Local<Context> context) { - return GetOwnPropertyNames( - context, static_cast<v8::PropertyFilter>(ONLY_ENUMERABLE | SKIP_SYMBOLS)); -} - -MaybeLocal<Array> v8::Object::GetOwnPropertyNames( - Local<Context> context, PropertyFilter filter, - KeyConversionMode key_conversion) { - return GetPropertyNames(context, KeyCollectionMode::kOwnOnly, filter, - v8::IndexFilter::kIncludeIndices, key_conversion); -} - -MaybeLocal<String> v8::Object::ObjectProtoToString(Local<Context> context) { - PREPARE_FOR_EXECUTION(context, Object, ObjectProtoToString, String); - auto self = Utils::OpenHandle(this); - Local<Value> result; - has_pending_exception = - !ToLocal<Value>(i::Execution::Call(isolate, isolate->object_to_string(), - self, 0, nullptr), - &result); - RETURN_ON_FAILED_EXECUTION(String); - RETURN_ESCAPED(Local<String>::Cast(result)); -} - - -Local<String> v8::Object::GetConstructorName() { - auto self = Utils::OpenHandle(this); - i::Handle<i::String> name = i::JSReceiver::GetConstructorName(self); - return Utils::ToLocal(name); -} - -Maybe<bool> v8::Object::SetIntegrityLevel(Local<Context> context, - IntegrityLevel level) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, SetIntegrityLevel, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - i::JSReceiver::IntegrityLevel i_level = - level == IntegrityLevel::kFrozen ? i::FROZEN : i::SEALED; - Maybe<bool> result = - i::JSReceiver::SetIntegrityLevel(self, i_level, i::kThrowOnError); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -Maybe<bool> v8::Object::Delete(Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - if (self->IsJSProxy()) { - ENTER_V8(isolate, context, Object, Delete, Nothing<bool>(), i::HandleScope); - Maybe<bool> result = i::Runtime::DeleteObjectProperty( - isolate, self, key_obj, i::LanguageMode::kSloppy); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; - } else { - // If it's not a JSProxy, i::Runtime::DeleteObjectProperty should never run - // a script. - ENTER_V8_NO_SCRIPT(isolate, context, Object, Delete, Nothing<bool>(), - i::HandleScope); - Maybe<bool> result = i::Runtime::DeleteObjectProperty( - isolate, self, key_obj, i::LanguageMode::kSloppy); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; - } -} - -Maybe<bool> v8::Object::DeletePrivate(Local<Context> context, - Local<Private> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - // In case of private symbols, i::Runtime::DeleteObjectProperty does not run - // any author script. - ENTER_V8_NO_SCRIPT(isolate, context, Object, Delete, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - Maybe<bool> result = i::Runtime::DeleteObjectProperty( - isolate, self, key_obj, i::LanguageMode::kSloppy); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -Maybe<bool> v8::Object::Has(Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, Has, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - Maybe<bool> maybe = Nothing<bool>(); - // Check if the given key is an array index. - uint32_t index = 0; - if (key_obj->ToArrayIndex(&index)) { - maybe = i::JSReceiver::HasElement(self, index); - } else { - // Convert the key to a name - possibly by calling back into JavaScript. - i::Handle<i::Name> name; - if (i::Object::ToName(isolate, key_obj).ToHandle(&name)) { - maybe = i::JSReceiver::HasProperty(self, name); - } - } - has_pending_exception = maybe.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return maybe; -} - - -Maybe<bool> v8::Object::HasPrivate(Local<Context> context, Local<Private> key) { - return HasOwnProperty(context, Local<Name>(reinterpret_cast<Name*>(*key))); -} - - -Maybe<bool> v8::Object::Delete(Local<Context> context, uint32_t index) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, Delete, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - Maybe<bool> result = i::JSReceiver::DeleteElement(self, index); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - - -Maybe<bool> v8::Object::Has(Local<Context> context, uint32_t index) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, Has, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - auto maybe = i::JSReceiver::HasElement(self, index); - has_pending_exception = maybe.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return maybe; -} - -template <typename Getter, typename Setter, typename Data> -static Maybe<bool> ObjectSetAccessor( - Local<Context> context, Object* self, Local<Name> name, Getter getter, - Setter setter, Data data, AccessControl settings, - PropertyAttribute attributes, bool is_special_data_property, - bool replace_on_access, SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, SetAccessor, Nothing<bool>(), - i::HandleScope); - if (!Utils::OpenHandle(self)->IsJSObject()) return Just(false); - i::Handle<i::JSObject> obj = - i::Handle<i::JSObject>::cast(Utils::OpenHandle(self)); - v8::Local<AccessorSignature> signature; - i::Handle<i::AccessorInfo> info = - MakeAccessorInfo(isolate, name, getter, setter, data, settings, signature, - is_special_data_property, replace_on_access); - info->set_getter_side_effect_type(getter_side_effect_type); - info->set_setter_side_effect_type(setter_side_effect_type); - if (info.is_null()) return Nothing<bool>(); - bool fast = obj->HasFastProperties(); - i::Handle<i::Object> result; - - i::Handle<i::Name> accessor_name(info->name(), isolate); - i::PropertyAttributes attrs = static_cast<i::PropertyAttributes>(attributes); - has_pending_exception = - !i::JSObject::SetAccessor(obj, accessor_name, info, attrs) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - if (result->IsUndefined(isolate)) return Just(false); - if (fast) { - i::JSObject::MigrateSlowToFast(obj, 0, "APISetAccessor"); - } - return Just(true); -} - -Maybe<bool> Object::SetAccessor(Local<Context> context, Local<Name> name, - AccessorNameGetterCallback getter, - AccessorNameSetterCallback setter, - MaybeLocal<Value> data, AccessControl settings, - PropertyAttribute attribute, - SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - return ObjectSetAccessor(context, this, name, getter, setter, - data.FromMaybe(Local<Value>()), settings, attribute, - i::FLAG_disable_old_api_accessors, false, - getter_side_effect_type, setter_side_effect_type); -} - - -void Object::SetAccessorProperty(Local<Name> name, Local<Function> getter, - Local<Function> setter, - PropertyAttribute attribute, - AccessControl settings) { - // TODO(verwaest): Remove |settings|. - DCHECK_EQ(v8::DEFAULT, settings); - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - auto self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return; - i::Handle<i::Object> getter_i = v8::Utils::OpenHandle(*getter); - i::Handle<i::Object> setter_i = v8::Utils::OpenHandle(*setter, true); - if (setter_i.is_null()) setter_i = isolate->factory()->null_value(); - i::JSObject::DefineAccessor(i::Handle<i::JSObject>::cast(self), - v8::Utils::OpenHandle(*name), getter_i, setter_i, - static_cast<i::PropertyAttributes>(attribute)); -} - -Maybe<bool> Object::SetNativeDataProperty( - v8::Local<v8::Context> context, v8::Local<Name> name, - AccessorNameGetterCallback getter, AccessorNameSetterCallback setter, - v8::Local<Value> data, PropertyAttribute attributes, - SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - return ObjectSetAccessor(context, this, name, getter, setter, data, DEFAULT, - attributes, true, false, getter_side_effect_type, - setter_side_effect_type); -} - -Maybe<bool> Object::SetLazyDataProperty( - v8::Local<v8::Context> context, v8::Local<Name> name, - AccessorNameGetterCallback getter, v8::Local<Value> data, - PropertyAttribute attributes, SideEffectType getter_side_effect_type, - SideEffectType setter_side_effect_type) { - return ObjectSetAccessor(context, this, name, getter, - static_cast<AccessorNameSetterCallback>(nullptr), - data, DEFAULT, attributes, true, true, - getter_side_effect_type, setter_side_effect_type); -} - -Maybe<bool> v8::Object::HasOwnProperty(Local<Context> context, - Local<Name> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, HasOwnProperty, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_val = Utils::OpenHandle(*key); - auto result = i::JSReceiver::HasOwnProperty(self, key_val); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -Maybe<bool> v8::Object::HasOwnProperty(Local<Context> context, uint32_t index) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Object, HasOwnProperty, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto result = i::JSReceiver::HasOwnProperty(self, index); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -Maybe<bool> v8::Object::HasRealNamedProperty(Local<Context> context, - Local<Name> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, HasRealNamedProperty, - Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return Just(false); - auto key_val = Utils::OpenHandle(*key); - auto result = i::JSObject::HasRealNamedProperty( - i::Handle<i::JSObject>::cast(self), key_val); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - - -Maybe<bool> v8::Object::HasRealIndexedProperty(Local<Context> context, - uint32_t index) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, HasRealIndexedProperty, - Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return Just(false); - auto result = i::JSObject::HasRealElementProperty( - i::Handle<i::JSObject>::cast(self), index); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -Maybe<bool> v8::Object::HasRealNamedCallbackProperty(Local<Context> context, - Local<Name> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, HasRealNamedCallbackProperty, - Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return Just(false); - auto key_val = Utils::OpenHandle(*key); - auto result = i::JSObject::HasRealNamedCallbackProperty( - i::Handle<i::JSObject>::cast(self), key_val); - has_pending_exception = result.IsNothing(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return result; -} - -bool v8::Object::HasNamedLookupInterceptor() { - auto self = Utils::OpenHandle(this); - return self->IsJSObject() && - i::Handle<i::JSObject>::cast(self)->HasNamedInterceptor(); -} - - -bool v8::Object::HasIndexedLookupInterceptor() { - auto self = Utils::OpenHandle(this); - return self->IsJSObject() && - i::Handle<i::JSObject>::cast(self)->HasIndexedInterceptor(); -} - - -MaybeLocal<Value> v8::Object::GetRealNamedPropertyInPrototypeChain( - Local<Context> context, Local<Name> key) { - PREPARE_FOR_EXECUTION(context, Object, GetRealNamedPropertyInPrototypeChain, - Value); - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return MaybeLocal<Value>(); - i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); - i::PrototypeIterator iter(isolate, self); - if (iter.IsAtEnd()) return MaybeLocal<Value>(); - i::Handle<i::JSReceiver> proto = - i::PrototypeIterator::GetCurrent<i::JSReceiver>(iter); - i::LookupIterator it = i::LookupIterator::PropertyOrElement( - isolate, self, key_obj, proto, - i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); - Local<Value> result; - has_pending_exception = !ToLocal<Value>(i::Object::GetProperty(&it), &result); - RETURN_ON_FAILED_EXECUTION(Value); - if (!it.IsFound()) return MaybeLocal<Value>(); - RETURN_ESCAPED(result); -} - - -Maybe<PropertyAttribute> -v8::Object::GetRealNamedPropertyAttributesInPrototypeChain( - Local<Context> context, Local<Name> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, - GetRealNamedPropertyAttributesInPrototypeChain, - Nothing<PropertyAttribute>(), i::HandleScope); - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return Nothing<PropertyAttribute>(); - i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); - i::PrototypeIterator iter(isolate, self); - if (iter.IsAtEnd()) return Nothing<PropertyAttribute>(); - i::Handle<i::JSReceiver> proto = - i::PrototypeIterator::GetCurrent<i::JSReceiver>(iter); - i::LookupIterator it = i::LookupIterator::PropertyOrElement( - isolate, self, key_obj, proto, - i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); - Maybe<i::PropertyAttributes> result = - i::JSReceiver::GetPropertyAttributes(&it); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); - if (!it.IsFound()) return Nothing<PropertyAttribute>(); - if (result.FromJust() == i::ABSENT) return Just(None); - return Just(static_cast<PropertyAttribute>(result.FromJust())); -} - - -MaybeLocal<Value> v8::Object::GetRealNamedProperty(Local<Context> context, - Local<Name> key) { - PREPARE_FOR_EXECUTION(context, Object, GetRealNamedProperty, Value); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - i::LookupIterator it = i::LookupIterator::PropertyOrElement( - isolate, self, key_obj, self, - i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); - Local<Value> result; - has_pending_exception = !ToLocal<Value>(i::Object::GetProperty(&it), &result); - RETURN_ON_FAILED_EXECUTION(Value); - if (!it.IsFound()) return MaybeLocal<Value>(); - RETURN_ESCAPED(result); -} - - -Maybe<PropertyAttribute> v8::Object::GetRealNamedPropertyAttributes( - Local<Context> context, Local<Name> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, Object, GetRealNamedPropertyAttributes, - Nothing<PropertyAttribute>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - auto key_obj = Utils::OpenHandle(*key); - i::LookupIterator it = i::LookupIterator::PropertyOrElement( - isolate, self, key_obj, self, - i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); - auto result = i::JSReceiver::GetPropertyAttributes(&it); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); - if (!it.IsFound()) return Nothing<PropertyAttribute>(); - if (result.FromJust() == i::ABSENT) { - return Just(static_cast<PropertyAttribute>(i::NONE)); - } - return Just<PropertyAttribute>( - static_cast<PropertyAttribute>(result.FromJust())); -} - - -Local<v8::Object> v8::Object::Clone() { - auto self = i::Handle<i::JSObject>::cast(Utils::OpenHandle(this)); - auto isolate = self->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - auto result = isolate->factory()->CopyJSObject(self); - CHECK(!result.is_null()); - return Utils::ToLocal(result); -} - - -Local<v8::Context> v8::Object::CreationContext() { - auto self = Utils::OpenHandle(this); - i::Handle<i::Context> context = self->GetCreationContext(); - return Utils::ToLocal(context); -} - - -int v8::Object::GetIdentityHash() { - i::DisallowHeapAllocation no_gc; - auto isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope scope(isolate); - auto self = Utils::OpenHandle(this); - return self->GetOrCreateIdentityHash(isolate)->value(); -} - - -bool v8::Object::IsCallable() { - auto self = Utils::OpenHandle(this); - return self->IsCallable(); -} - -bool v8::Object::IsConstructor() { - auto self = Utils::OpenHandle(this); - return self->IsConstructor(); -} - -MaybeLocal<Value> Object::CallAsFunction(Local<Context> context, - Local<Value> recv, int argc, - Local<Value> argv[]) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); - ENTER_V8(isolate, context, Object, CallAsFunction, MaybeLocal<Value>(), - InternalEscapableScope); - i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); - auto self = Utils::OpenHandle(this); - auto recv_obj = Utils::OpenHandle(*recv); - STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); - i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); - Local<Value> result; - has_pending_exception = !ToLocal<Value>( - i::Execution::Call(isolate, self, recv_obj, argc, args), &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - - -MaybeLocal<Value> Object::CallAsConstructor(Local<Context> context, int argc, - Local<Value> argv[]) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); - ENTER_V8(isolate, context, Object, CallAsConstructor, MaybeLocal<Value>(), - InternalEscapableScope); - i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); - auto self = Utils::OpenHandle(this); - STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); - i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); - Local<Value> result; - has_pending_exception = !ToLocal<Value>( - i::Execution::New(isolate, self, self, argc, args), &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - -MaybeLocal<Function> Function::New(Local<Context> context, - FunctionCallback callback, Local<Value> data, - int length, ConstructorBehavior behavior, - SideEffectType side_effect_type) { - i::Isolate* isolate = Utils::OpenHandle(*context)->GetIsolate(); - LOG_API(isolate, Function, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - auto templ = - FunctionTemplateNew(isolate, callback, data, Local<Signature>(), length, - true, Local<Private>(), side_effect_type); - if (behavior == ConstructorBehavior::kThrow) templ->RemovePrototype(); - return templ->GetFunction(context); -} - -MaybeLocal<Object> Function::NewInstance(Local<Context> context, int argc, - v8::Local<v8::Value> argv[]) const { - return NewInstanceWithSideEffectType(context, argc, argv, - SideEffectType::kHasSideEffect); -} - -MaybeLocal<Object> Function::NewInstanceWithSideEffectType( - Local<Context> context, int argc, v8::Local<v8::Value> argv[], - SideEffectType side_effect_type) const { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); - ENTER_V8(isolate, context, Function, NewInstance, MaybeLocal<Object>(), - InternalEscapableScope); - i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); - auto self = Utils::OpenHandle(this); - STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); - bool should_set_has_no_side_effect = - side_effect_type == SideEffectType::kHasNoSideEffect && - isolate->debug_execution_mode() == i::DebugInfo::kSideEffects; - if (should_set_has_no_side_effect) { - CHECK(self->IsJSFunction() && - i::JSFunction::cast(*self)->shared()->IsApiFunction()); - i::Object obj = - i::JSFunction::cast(*self)->shared()->get_api_func_data()->call_code(); - if (obj->IsCallHandlerInfo()) { - i::CallHandlerInfo handler_info = i::CallHandlerInfo::cast(obj); - if (!handler_info->IsSideEffectFreeCallHandlerInfo()) { - handler_info->SetNextCallHasNoSideEffect(); - } - } - } - i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); - Local<Object> result; - has_pending_exception = !ToLocal<Object>( - i::Execution::New(isolate, self, self, argc, args), &result); - if (should_set_has_no_side_effect) { - i::Object obj = - i::JSFunction::cast(*self)->shared()->get_api_func_data()->call_code(); - if (obj->IsCallHandlerInfo()) { - i::CallHandlerInfo handler_info = i::CallHandlerInfo::cast(obj); - if (has_pending_exception) { - // Restore the map if an exception prevented restoration. - handler_info->NextCallHasNoSideEffect(); - } else { - DCHECK(handler_info->IsSideEffectCallHandlerInfo() || - handler_info->IsSideEffectFreeCallHandlerInfo()); - } - } - } - RETURN_ON_FAILED_EXECUTION(Object); - RETURN_ESCAPED(result); -} - - -MaybeLocal<v8::Value> Function::Call(Local<Context> context, - v8::Local<v8::Value> recv, int argc, - v8::Local<v8::Value> argv[]) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); - ENTER_V8(isolate, context, Function, Call, MaybeLocal<Value>(), - InternalEscapableScope); - i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); - auto self = Utils::OpenHandle(this); - Utils::ApiCheck(!self.is_null(), "v8::Function::Call", - "Function to be called is a null pointer"); - i::Handle<i::Object> recv_obj = Utils::OpenHandle(*recv); - STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); - i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); - Local<Value> result; - has_pending_exception = !ToLocal<Value>( - i::Execution::Call(isolate, self, recv_obj, argc, args), &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - -void Function::SetName(v8::Local<v8::String> name) { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) return; - auto func = i::Handle<i::JSFunction>::cast(self); - func->shared()->SetName(*Utils::OpenHandle(*name)); -} - - -Local<Value> Function::GetName() const { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - if (self->IsJSBoundFunction()) { - auto func = i::Handle<i::JSBoundFunction>::cast(self); - i::Handle<i::Object> name; - ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, name, - i::JSBoundFunction::GetName(isolate, func), - Local<Value>()); - return Utils::ToLocal(name); - } - if (self->IsJSFunction()) { - auto func = i::Handle<i::JSFunction>::cast(self); - return Utils::ToLocal(handle(func->shared()->Name(), isolate)); - } - return ToApiHandle<Primitive>(isolate->factory()->undefined_value()); -} - - -Local<Value> Function::GetInferredName() const { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return ToApiHandle<Primitive>( - self->GetIsolate()->factory()->undefined_value()); - } - auto func = i::Handle<i::JSFunction>::cast(self); - return Utils::ToLocal(i::Handle<i::Object>(func->shared()->inferred_name(), - func->GetIsolate())); -} - - -Local<Value> Function::GetDebugName() const { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return ToApiHandle<Primitive>( - self->GetIsolate()->factory()->undefined_value()); - } - auto func = i::Handle<i::JSFunction>::cast(self); - i::Handle<i::String> name = i::JSFunction::GetDebugName(func); - return Utils::ToLocal(i::Handle<i::Object>(*name, self->GetIsolate())); -} - - -Local<Value> Function::GetDisplayName() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return ToApiHandle<Primitive>(isolate->factory()->undefined_value()); - } - auto func = i::Handle<i::JSFunction>::cast(self); - i::Handle<i::String> property_name = - isolate->factory()->NewStringFromStaticChars("displayName"); - i::Handle<i::Object> value = - i::JSReceiver::GetDataProperty(func, property_name); - if (value->IsString()) { - i::Handle<i::String> name = i::Handle<i::String>::cast(value); - if (name->length() > 0) return Utils::ToLocal(name); - } - return ToApiHandle<Primitive>(isolate->factory()->undefined_value()); -} - - -ScriptOrigin Function::GetScriptOrigin() const { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return v8::ScriptOrigin(Local<Value>()); - } - auto func = i::Handle<i::JSFunction>::cast(self); - if (func->shared()->script()->IsScript()) { - i::Handle<i::Script> script(i::Script::cast(func->shared()->script()), - func->GetIsolate()); - return GetScriptOriginForScript(func->GetIsolate(), script); - } - return v8::ScriptOrigin(Local<Value>()); -} - - -const int Function::kLineOffsetNotFound = -1; - - -int Function::GetScriptLineNumber() const { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return kLineOffsetNotFound; - } - auto func = i::Handle<i::JSFunction>::cast(self); - if (func->shared()->script()->IsScript()) { - i::Handle<i::Script> script(i::Script::cast(func->shared()->script()), - func->GetIsolate()); - return i::Script::GetLineNumber(script, func->shared()->StartPosition()); - } - return kLineOffsetNotFound; -} - - -int Function::GetScriptColumnNumber() const { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return kLineOffsetNotFound; - } - auto func = i::Handle<i::JSFunction>::cast(self); - if (func->shared()->script()->IsScript()) { - i::Handle<i::Script> script(i::Script::cast(func->shared()->script()), - func->GetIsolate()); - return i::Script::GetColumnNumber(script, func->shared()->StartPosition()); - } - return kLineOffsetNotFound; -} - - -int Function::ScriptId() const { - auto self = Utils::OpenHandle(this); - if (!self->IsJSFunction()) { - return v8::UnboundScript::kNoScriptId; - } - auto func = i::Handle<i::JSFunction>::cast(self); - if (!func->shared()->script()->IsScript()) { - return v8::UnboundScript::kNoScriptId; - } - i::Handle<i::Script> script(i::Script::cast(func->shared()->script()), - func->GetIsolate()); - return script->id(); -} - - -Local<v8::Value> Function::GetBoundFunction() const { - auto self = Utils::OpenHandle(this); - if (self->IsJSBoundFunction()) { - auto bound_function = i::Handle<i::JSBoundFunction>::cast(self); - auto bound_target_function = i::handle( - bound_function->bound_target_function(), bound_function->GetIsolate()); - return Utils::CallableToLocal(bound_target_function); - } - return v8::Undefined(reinterpret_cast<v8::Isolate*>(self->GetIsolate())); -} - -int Name::GetIdentityHash() { - auto self = Utils::OpenHandle(this); - return static_cast<int>(self->Hash()); -} - - -int String::Length() const { - i::Handle<i::String> str = Utils::OpenHandle(this); - return str->length(); -} - - -bool String::IsOneByte() const { - i::Handle<i::String> str = Utils::OpenHandle(this); - return str->IsOneByteRepresentation(); -} - - -// Helpers for ContainsOnlyOneByteHelper -template<size_t size> struct OneByteMask; -template<> struct OneByteMask<4> { - static const uint32_t value = 0xFF00FF00; -}; -template<> struct OneByteMask<8> { - static const uint64_t value = V8_2PART_UINT64_C(0xFF00FF00, FF00FF00); -}; -static const uintptr_t kOneByteMask = OneByteMask<sizeof(uintptr_t)>::value; -static const uintptr_t kAlignmentMask = sizeof(uintptr_t) - 1; -static inline bool Unaligned(const uint16_t* chars) { - return reinterpret_cast<const uintptr_t>(chars) & kAlignmentMask; -} - - -static inline const uint16_t* Align(const uint16_t* chars) { - return reinterpret_cast<uint16_t*>( - reinterpret_cast<uintptr_t>(chars) & ~kAlignmentMask); -} - -class ContainsOnlyOneByteHelper { - public: - ContainsOnlyOneByteHelper() : is_one_byte_(true) {} - bool Check(i::String string) { - i::ConsString cons_string = i::String::VisitFlat(this, string, 0); - if (cons_string.is_null()) return is_one_byte_; - return CheckCons(cons_string); - } - void VisitOneByteString(const uint8_t* chars, int length) { - // Nothing to do. - } - void VisitTwoByteString(const uint16_t* chars, int length) { - // Accumulated bits. - uintptr_t acc = 0; - // Align to uintptr_t. - const uint16_t* end = chars + length; - while (Unaligned(chars) && chars != end) { - acc |= *chars++; - } - // Read word aligned in blocks, - // checking the return value at the end of each block. - const uint16_t* aligned_end = Align(end); - const int increment = sizeof(uintptr_t)/sizeof(uint16_t); - const int inner_loops = 16; - while (chars + inner_loops*increment < aligned_end) { - for (int i = 0; i < inner_loops; i++) { - acc |= *reinterpret_cast<const uintptr_t*>(chars); - chars += increment; - } - // Check for early return. - if ((acc & kOneByteMask) != 0) { - is_one_byte_ = false; - return; - } - } - // Read the rest. - while (chars != end) { - acc |= *chars++; - } - // Check result. - if ((acc & kOneByteMask) != 0) is_one_byte_ = false; - } - - private: - bool CheckCons(i::ConsString cons_string) { - while (true) { - // Check left side if flat. - i::String left = cons_string->first(); - i::ConsString left_as_cons = i::String::VisitFlat(this, left, 0); - if (!is_one_byte_) return false; - // Check right side if flat. - i::String right = cons_string->second(); - i::ConsString right_as_cons = i::String::VisitFlat(this, right, 0); - if (!is_one_byte_) return false; - // Standard recurse/iterate trick. - if (!left_as_cons.is_null() && !right_as_cons.is_null()) { - if (left->length() < right->length()) { - CheckCons(left_as_cons); - cons_string = right_as_cons; - } else { - CheckCons(right_as_cons); - cons_string = left_as_cons; - } - // Check fast return. - if (!is_one_byte_) return false; - continue; - } - // Descend left in place. - if (!left_as_cons.is_null()) { - cons_string = left_as_cons; - continue; - } - // Descend right in place. - if (!right_as_cons.is_null()) { - cons_string = right_as_cons; - continue; - } - // Terminate. - break; - } - return is_one_byte_; - } - bool is_one_byte_; - DISALLOW_COPY_AND_ASSIGN(ContainsOnlyOneByteHelper); -}; - - -bool String::ContainsOnlyOneByte() const { - i::Handle<i::String> str = Utils::OpenHandle(this); - if (str->IsOneByteRepresentation()) return true; - ContainsOnlyOneByteHelper helper; - return helper.Check(*str); -} - -int String::Utf8Length(Isolate* isolate) const { - i::Handle<i::String> str = Utils::OpenHandle(this); - str = i::String::Flatten(reinterpret_cast<i::Isolate*>(isolate), str); - int length = str->length(); - if (length == 0) return 0; - i::DisallowHeapAllocation no_gc; - i::String::FlatContent flat = str->GetFlatContent(no_gc); - DCHECK(flat.IsFlat()); - int utf8_length = 0; - if (flat.IsOneByte()) { - for (uint8_t c : flat.ToOneByteVector()) { - utf8_length += c >> 7; - } - utf8_length += length; - } else { - int last_character = unibrow::Utf16::kNoPreviousCharacter; - for (uint16_t c : flat.ToUC16Vector()) { - utf8_length += unibrow::Utf8::Length(c, last_character); - last_character = c; - } - } - return utf8_length; -} - -namespace { -// Writes the flat content of a string to a buffer. This is done in two phases. -// The first phase calculates a pessimistic estimate (writable_length) on how -// many code units can be safely written without exceeding the buffer capacity -// and without leaving at a lone surrogate. The estimated number of code units -// is then written out in one go, and the reported byte usage is used to -// correct the estimate. This is repeated until the estimate becomes <= 0 or -// all code units have been written out. The second phase writes out code -// units until the buffer capacity is reached, would be exceeded by the next -// unit, or all code units have been written out. -template <typename Char> -static int WriteUtf8Impl(i::Vector<const Char> string, char* write_start, - int write_capacity, int options, - int* utf16_chars_read_out) { - bool write_null = !(options & v8::String::NO_NULL_TERMINATION); - bool replace_invalid_utf8 = (options & v8::String::REPLACE_INVALID_UTF8); - char* current_write = write_start; - const Char* read_start = string.start(); - int read_index = 0; - int read_length = string.length(); - int prev_char = unibrow::Utf16::kNoPreviousCharacter; - // Do a fast loop where there is no exit capacity check. - // Need enough space to write everything but one character. - STATIC_ASSERT(unibrow::Utf16::kMaxExtraUtf8BytesForOneUtf16CodeUnit == 3); - static const int kMaxSizePerChar = sizeof(Char) == 1 ? 2 : 3; - while (read_index < read_length) { - int up_to = read_length; - if (write_capacity != -1) { - int remaining_capacity = - write_capacity - static_cast<int>(current_write - write_start); - int writable_length = - (remaining_capacity - kMaxSizePerChar) / kMaxSizePerChar; - // Need to drop into slow loop. - if (writable_length <= 0) break; - up_to = std::min(up_to, read_index + writable_length); - } - // Write the characters to the stream. - if (sizeof(Char) == 1) { - // Simply memcpy if we only have ASCII characters. - uint8_t char_mask = 0; - for (int i = read_index; i < up_to; i++) char_mask |= read_start[i]; - if ((char_mask & 0x80) == 0) { - int copy_length = up_to - read_index; - memcpy(current_write, read_start + read_index, copy_length); - current_write += copy_length; - read_index = up_to; - } else { - for (; read_index < up_to; read_index++) { - current_write += unibrow::Utf8::EncodeOneByte( - current_write, static_cast<uint8_t>(read_start[read_index])); - DCHECK(write_capacity == -1 || - (current_write - write_start) <= write_capacity); - } - } - } else { - for (; read_index < up_to; read_index++) { - uint16_t character = read_start[read_index]; - current_write += unibrow::Utf8::Encode(current_write, character, - prev_char, replace_invalid_utf8); - prev_char = character; - DCHECK(write_capacity == -1 || - (current_write - write_start) <= write_capacity); - } - } - } - if (read_index < read_length) { - DCHECK_NE(-1, write_capacity); - // Aborted due to limited capacity. Check capacity on each iteration. - int remaining_capacity = - write_capacity - static_cast<int>(current_write - write_start); - DCHECK_GE(remaining_capacity, 0); - for (; read_index < read_length && remaining_capacity > 0; read_index++) { - uint32_t character = read_start[read_index]; - int written = 0; - // We can't use a local buffer here because Encode needs to modify - // previous characters in the stream. We know, however, that - // exactly one character will be advanced. - if (unibrow::Utf16::IsSurrogatePair(prev_char, character)) { - written = unibrow::Utf8::Encode(current_write, character, prev_char, - replace_invalid_utf8); - DCHECK_EQ(written, 1); - } else { - // Use a scratch buffer to check the required characters. - char temp_buffer[unibrow::Utf8::kMaxEncodedSize]; - // Encoding a surrogate pair to Utf8 always takes 4 bytes. - static const int kSurrogatePairEncodedSize = - static_cast<int>(unibrow::Utf8::kMaxEncodedSize); - // For REPLACE_INVALID_UTF8, catch the case where we cut off in the - // middle of a surrogate pair. Abort before encoding the pair instead. - if (replace_invalid_utf8 && - remaining_capacity < kSurrogatePairEncodedSize && - unibrow::Utf16::IsLeadSurrogate(character) && - read_index + 1 < read_length && - unibrow::Utf16::IsTrailSurrogate(read_start[read_index + 1])) { - write_null = false; - break; - } - // Can't encode using prev_char as gcc has array bounds issues. - written = unibrow::Utf8::Encode(temp_buffer, character, - unibrow::Utf16::kNoPreviousCharacter, - replace_invalid_utf8); - if (written > remaining_capacity) { - // Won't fit. Abort and do not null-terminate the result. - write_null = false; - break; - } - // Copy over the character from temp_buffer. - for (int i = 0; i < written; i++) current_write[i] = temp_buffer[i]; - } - - current_write += written; - remaining_capacity -= written; - prev_char = character; - } - } - - // Write out number of utf16 characters written to the stream. - if (utf16_chars_read_out != nullptr) *utf16_chars_read_out = read_index; - - // Only null-terminate if there's space. - if (write_null && (write_capacity == -1 || - (current_write - write_start) < write_capacity)) { - *current_write++ = '\0'; - } - return static_cast<int>(current_write - write_start); -} -} // anonymous namespace - -int String::WriteUtf8(Isolate* v8_isolate, char* buffer, int capacity, - int* nchars_ref, int options) const { - i::Handle<i::String> str = Utils::OpenHandle(this); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - LOG_API(isolate, String, WriteUtf8); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - str = i::String::Flatten(isolate, str); - i::DisallowHeapAllocation no_gc; - i::String::FlatContent content = str->GetFlatContent(no_gc); - if (content.IsOneByte()) { - return WriteUtf8Impl<uint8_t>(content.ToOneByteVector(), buffer, capacity, - options, nchars_ref); - } else { - return WriteUtf8Impl<uint16_t>(content.ToUC16Vector(), buffer, capacity, - options, nchars_ref); - } -} - -template <typename CharType> -static inline int WriteHelper(i::Isolate* isolate, const String* string, - CharType* buffer, int start, int length, - int options) { - LOG_API(isolate, String, Write); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - DCHECK(start >= 0 && length >= -1); - i::Handle<i::String> str = Utils::OpenHandle(string); - str = i::String::Flatten(isolate, str); - int end = start + length; - if ((length == -1) || (length > str->length() - start) ) - end = str->length(); - if (end < 0) return 0; - i::String::WriteToFlat(*str, buffer, start, end); - if (!(options & String::NO_NULL_TERMINATION) && - (length == -1 || end - start < length)) { - buffer[end - start] = '\0'; - } - return end - start; -} - - -int String::WriteOneByte(Isolate* isolate, uint8_t* buffer, int start, - int length, int options) const { - return WriteHelper(reinterpret_cast<i::Isolate*>(isolate), this, buffer, - start, length, options); -} - - -int String::Write(Isolate* isolate, uint16_t* buffer, int start, int length, - int options) const { - return WriteHelper(reinterpret_cast<i::Isolate*>(isolate), this, buffer, - start, length, options); -} - - -bool v8::String::IsExternal() const { - i::Handle<i::String> str = Utils::OpenHandle(this); - return i::StringShape(*str).IsExternalTwoByte(); -} - - -bool v8::String::IsExternalOneByte() const { - i::Handle<i::String> str = Utils::OpenHandle(this); - return i::StringShape(*str).IsExternalOneByte(); -} - - -void v8::String::VerifyExternalStringResource( - v8::String::ExternalStringResource* value) const { - i::DisallowHeapAllocation no_allocation; - i::String str = *Utils::OpenHandle(this); - const v8::String::ExternalStringResource* expected; - - if (str->IsThinString()) { - str = i::ThinString::cast(str)->actual(); - } - - if (i::StringShape(str).IsExternalTwoByte()) { - const void* resource = i::ExternalTwoByteString::cast(str)->resource(); - expected = reinterpret_cast<const ExternalStringResource*>(resource); - } else { - expected = nullptr; - } - CHECK_EQ(expected, value); -} - -void v8::String::VerifyExternalStringResourceBase( - v8::String::ExternalStringResourceBase* value, Encoding encoding) const { - i::DisallowHeapAllocation no_allocation; - i::String str = *Utils::OpenHandle(this); - const v8::String::ExternalStringResourceBase* expected; - Encoding expectedEncoding; - - if (str->IsThinString()) { - str = i::ThinString::cast(str)->actual(); - } - - if (i::StringShape(str).IsExternalOneByte()) { - const void* resource = i::ExternalOneByteString::cast(str)->resource(); - expected = reinterpret_cast<const ExternalStringResourceBase*>(resource); - expectedEncoding = ONE_BYTE_ENCODING; - } else if (i::StringShape(str).IsExternalTwoByte()) { - const void* resource = i::ExternalTwoByteString::cast(str)->resource(); - expected = reinterpret_cast<const ExternalStringResourceBase*>(resource); - expectedEncoding = TWO_BYTE_ENCODING; - } else { - expected = nullptr; - expectedEncoding = - str->IsOneByteRepresentation() ? ONE_BYTE_ENCODING : TWO_BYTE_ENCODING; - } - CHECK_EQ(expected, value); - CHECK_EQ(expectedEncoding, encoding); -} - -String::ExternalStringResource* String::GetExternalStringResourceSlow() const { - i::DisallowHeapAllocation no_allocation; - typedef internal::Internals I; - i::String str = *Utils::OpenHandle(this); - - if (str->IsThinString()) { - str = i::ThinString::cast(str)->actual(); - } - - if (i::StringShape(str).IsExternalTwoByte()) { - void* value = I::ReadRawField<void*>(str.ptr(), I::kStringResourceOffset); - return reinterpret_cast<String::ExternalStringResource*>(value); - } - return nullptr; -} - -String::ExternalStringResourceBase* String::GetExternalStringResourceBaseSlow( - String::Encoding* encoding_out) const { - i::DisallowHeapAllocation no_allocation; - typedef internal::Internals I; - ExternalStringResourceBase* resource = nullptr; - i::String str = *Utils::OpenHandle(this); - - if (str->IsThinString()) { - str = i::ThinString::cast(str)->actual(); - } - - internal::Address string = str.ptr(); - int type = I::GetInstanceType(string) & I::kFullStringRepresentationMask; - *encoding_out = static_cast<Encoding>(type & I::kStringEncodingMask); - if (i::StringShape(str).IsExternalOneByte() || - i::StringShape(str).IsExternalTwoByte()) { - void* value = I::ReadRawField<void*>(string, I::kStringResourceOffset); - resource = static_cast<ExternalStringResourceBase*>(value); - } - return resource; -} - -const v8::String::ExternalOneByteStringResource* -v8::String::GetExternalOneByteStringResource() const { - i::DisallowHeapAllocation no_allocation; - i::String str = *Utils::OpenHandle(this); - if (i::StringShape(str).IsExternalOneByte()) { - return i::ExternalOneByteString::cast(str)->resource(); - } else if (str->IsThinString()) { - str = i::ThinString::cast(str)->actual(); - if (i::StringShape(str).IsExternalOneByte()) { - return i::ExternalOneByteString::cast(str)->resource(); - } - } - return nullptr; -} - - -Local<Value> Symbol::Name() const { - i::Handle<i::Symbol> sym = Utils::OpenHandle(this); - - i::Isolate* isolate; - if (!i::GetIsolateFromWritableObject(*sym, &isolate)) { - // If the Symbol is in RO_SPACE, then its name must be too. Since RO_SPACE - // objects are immovable we can use the Handle(Address*) constructor with - // the address of the name field in the Symbol object without needing an - // isolate. -#ifdef V8_COMPRESS_POINTERS - // Compressed fields can't serve as handle locations. - // TODO(ishell): get Isolate as a parameter. - isolate = i::Isolate::Current(); -#else - i::Handle<i::HeapObject> ro_name(reinterpret_cast<i::Address*>( - sym->GetFieldAddress(i::Symbol::kNameOffset))); - return Utils::ToLocal(ro_name); -#endif - } - - i::Handle<i::Object> name(sym->name(), isolate); - - return Utils::ToLocal(name); -} - - -Local<Value> Private::Name() const { - return reinterpret_cast<const Symbol*>(this)->Name(); -} - - -double Number::Value() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - return obj->Number(); -} - - -bool Boolean::Value() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - return obj->IsTrue(); -} - - -int64_t Integer::Value() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsSmi()) { - return i::Smi::ToInt(*obj); - } else { - return static_cast<int64_t>(obj->Number()); - } -} - - -int32_t Int32::Value() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsSmi()) { - return i::Smi::ToInt(*obj); - } else { - return static_cast<int32_t>(obj->Number()); - } -} - - -uint32_t Uint32::Value() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - if (obj->IsSmi()) { - return i::Smi::ToInt(*obj); - } else { - return static_cast<uint32_t>(obj->Number()); - } -} - -int v8::Object::InternalFieldCount() { - i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); - if (!self->IsJSObject()) return 0; - return i::Handle<i::JSObject>::cast(self)->GetEmbedderFieldCount(); -} - -static bool InternalFieldOK(i::Handle<i::JSReceiver> obj, int index, - const char* location) { - return Utils::ApiCheck( - obj->IsJSObject() && - (index < i::Handle<i::JSObject>::cast(obj)->GetEmbedderFieldCount()), - location, "Internal field out of bounds"); -} - -Local<Value> v8::Object::SlowGetInternalField(int index) { - i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); - const char* location = "v8::Object::GetInternalField()"; - if (!InternalFieldOK(obj, index, location)) return Local<Value>(); - i::Handle<i::Object> value(i::JSObject::cast(*obj)->GetEmbedderField(index), - obj->GetIsolate()); - return Utils::ToLocal(value); -} - -void v8::Object::SetInternalField(int index, v8::Local<Value> value) { - i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); - const char* location = "v8::Object::SetInternalField()"; - if (!InternalFieldOK(obj, index, location)) return; - i::Handle<i::Object> val = Utils::OpenHandle(*value); - i::Handle<i::JSObject>::cast(obj)->SetEmbedderField(index, *val); -} - -void* v8::Object::SlowGetAlignedPointerFromInternalField(int index) { - i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); - const char* location = "v8::Object::GetAlignedPointerFromInternalField()"; - if (!InternalFieldOK(obj, index, location)) return nullptr; - void* result; - Utils::ApiCheck(i::EmbedderDataSlot(i::JSObject::cast(*obj), index) - .ToAlignedPointer(&result), - location, "Unaligned pointer"); - return result; -} - -void v8::Object::SetAlignedPointerInInternalField(int index, void* value) { - i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); - const char* location = "v8::Object::SetAlignedPointerInInternalField()"; - if (!InternalFieldOK(obj, index, location)) return; - Utils::ApiCheck(i::EmbedderDataSlot(i::JSObject::cast(*obj), index) - .store_aligned_pointer(value), - location, "Unaligned pointer"); - DCHECK_EQ(value, GetAlignedPointerFromInternalField(index)); -} - -void v8::Object::SetAlignedPointerInInternalFields(int argc, int indices[], - void* values[]) { - i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); - const char* location = "v8::Object::SetAlignedPointerInInternalFields()"; - i::DisallowHeapAllocation no_gc; - i::JSObject js_obj = i::JSObject::cast(*obj); - int nof_embedder_fields = js_obj->GetEmbedderFieldCount(); - for (int i = 0; i < argc; i++) { - int index = indices[i]; - if (!Utils::ApiCheck(index < nof_embedder_fields, location, - "Internal field out of bounds")) { - return; - } - void* value = values[i]; - Utils::ApiCheck( - i::EmbedderDataSlot(js_obj, index).store_aligned_pointer(value), - location, "Unaligned pointer"); - DCHECK_EQ(value, GetAlignedPointerFromInternalField(index)); - } -} - -static void* ExternalValue(i::Object obj) { - // Obscure semantics for undefined, but somehow checked in our unit tests... - if (obj->IsUndefined()) { - return nullptr; - } - i::Object foreign = i::JSObject::cast(obj)->GetEmbedderField(0); - return reinterpret_cast<void*>(i::Foreign::cast(foreign)->foreign_address()); -} - -// --- E n v i r o n m e n t --- - - -void v8::V8::InitializePlatform(Platform* platform) { - i::V8::InitializePlatform(platform); -} - - -void v8::V8::ShutdownPlatform() { - i::V8::ShutdownPlatform(); -} - - -bool v8::V8::Initialize() { - i::V8::Initialize(); -#ifdef V8_USE_EXTERNAL_STARTUP_DATA - i::ReadNatives(); -#endif - return true; -} - -#if V8_OS_LINUX || V8_OS_MACOSX -bool TryHandleWebAssemblyTrapPosix(int sig_code, siginfo_t* info, - void* context) { -#if V8_TARGET_ARCH_X64 && !V8_OS_ANDROID - return i::trap_handler::TryHandleSignal(sig_code, info, context); -#else - return false; -#endif -} - -bool V8::TryHandleSignal(int signum, void* info, void* context) { - return TryHandleWebAssemblyTrapPosix( - signum, reinterpret_cast<siginfo_t*>(info), context); -} -#endif - -#if V8_OS_WIN -bool TryHandleWebAssemblyTrapWindows(EXCEPTION_POINTERS* exception) { -#if V8_TARGET_ARCH_X64 - return i::trap_handler::TryHandleWasmTrap(exception); -#endif - return false; -} -#endif - -bool V8::EnableWebAssemblyTrapHandler(bool use_v8_signal_handler) { - return v8::internal::trap_handler::EnableTrapHandler(use_v8_signal_handler); -} - -#if defined(V8_OS_WIN) -void V8::SetUnhandledExceptionCallback( - UnhandledExceptionCallback unhandled_exception_callback) { -#if defined(V8_TARGET_ARCH_X64) - v8::internal::win64_unwindinfo::SetUnhandledExceptionCallback( - unhandled_exception_callback); -#else - // Not implemented on ARM64. -#endif -} -#endif - -void v8::V8::SetEntropySource(EntropySource entropy_source) { - base::RandomNumberGenerator::SetEntropySource(entropy_source); -} - - -void v8::V8::SetReturnAddressLocationResolver( - ReturnAddressLocationResolver return_address_resolver) { - i::StackFrame::SetReturnAddressLocationResolver(return_address_resolver); -} - -bool v8::V8::Dispose() { - i::V8::TearDown(); -#ifdef V8_USE_EXTERNAL_STARTUP_DATA - i::DisposeNatives(); -#endif - return true; -} - -HeapStatistics::HeapStatistics() - : total_heap_size_(0), - total_heap_size_executable_(0), - total_physical_size_(0), - total_available_size_(0), - used_heap_size_(0), - heap_size_limit_(0), - malloced_memory_(0), - external_memory_(0), - peak_malloced_memory_(0), - does_zap_garbage_(false), - number_of_native_contexts_(0), - number_of_detached_contexts_(0) {} - -HeapSpaceStatistics::HeapSpaceStatistics() - : space_name_(nullptr), - space_size_(0), - space_used_size_(0), - space_available_size_(0), - physical_space_size_(0) {} - -HeapObjectStatistics::HeapObjectStatistics() - : object_type_(nullptr), - object_sub_type_(nullptr), - object_count_(0), - object_size_(0) {} - -HeapCodeStatistics::HeapCodeStatistics() - : code_and_metadata_size_(0), - bytecode_and_metadata_size_(0), - external_script_source_size_(0) {} - -bool v8::V8::InitializeICU(const char* icu_data_file) { - return i::InitializeICU(icu_data_file); -} - -bool v8::V8::InitializeICUDefaultLocation(const char* exec_path, - const char* icu_data_file) { - return i::InitializeICUDefaultLocation(exec_path, icu_data_file); -} - -void v8::V8::InitializeExternalStartupData(const char* directory_path) { - i::InitializeExternalStartupData(directory_path); -} - - -void v8::V8::InitializeExternalStartupData(const char* natives_blob, - const char* snapshot_blob) { - i::InitializeExternalStartupData(natives_blob, snapshot_blob); -} - - -const char* v8::V8::GetVersion() { - return i::Version::GetVersion(); -} - -template <typename ObjectType> -struct InvokeBootstrapper; - -template <> -struct InvokeBootstrapper<i::Context> { - i::Handle<i::Context> Invoke( - i::Isolate* isolate, i::MaybeHandle<i::JSGlobalProxy> maybe_global_proxy, - v8::Local<v8::ObjectTemplate> global_proxy_template, - v8::ExtensionConfiguration* extensions, size_t context_snapshot_index, - v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, - v8::MicrotaskQueue* microtask_queue) { - return isolate->bootstrapper()->CreateEnvironment( - maybe_global_proxy, global_proxy_template, extensions, - context_snapshot_index, embedder_fields_deserializer, microtask_queue); - } -}; - -template <> -struct InvokeBootstrapper<i::JSGlobalProxy> { - i::Handle<i::JSGlobalProxy> Invoke( - i::Isolate* isolate, i::MaybeHandle<i::JSGlobalProxy> maybe_global_proxy, - v8::Local<v8::ObjectTemplate> global_proxy_template, - v8::ExtensionConfiguration* extensions, size_t context_snapshot_index, - v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, - v8::MicrotaskQueue* microtask_queue) { - USE(extensions); - USE(context_snapshot_index); - return isolate->bootstrapper()->NewRemoteContext(maybe_global_proxy, - global_proxy_template); - } -}; - -template <typename ObjectType> -static i::Handle<ObjectType> CreateEnvironment( - i::Isolate* isolate, v8::ExtensionConfiguration* extensions, - v8::MaybeLocal<ObjectTemplate> maybe_global_template, - v8::MaybeLocal<Value> maybe_global_proxy, size_t context_snapshot_index, - v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, - v8::MicrotaskQueue* microtask_queue) { - i::Handle<ObjectType> result; - - { - ENTER_V8_FOR_NEW_CONTEXT(isolate); - v8::Local<ObjectTemplate> proxy_template; - i::Handle<i::FunctionTemplateInfo> proxy_constructor; - i::Handle<i::FunctionTemplateInfo> global_constructor; - i::Handle<i::Object> named_interceptor( - isolate->factory()->undefined_value()); - i::Handle<i::Object> indexed_interceptor( - isolate->factory()->undefined_value()); - - if (!maybe_global_template.IsEmpty()) { - v8::Local<v8::ObjectTemplate> global_template = - maybe_global_template.ToLocalChecked(); - // Make sure that the global_template has a constructor. - global_constructor = EnsureConstructor(isolate, *global_template); - - // Create a fresh template for the global proxy object. - proxy_template = ObjectTemplate::New( - reinterpret_cast<v8::Isolate*>(isolate)); - proxy_constructor = EnsureConstructor(isolate, *proxy_template); - - // Set the global template to be the prototype template of - // global proxy template. - i::FunctionTemplateInfo::SetPrototypeTemplate( - isolate, proxy_constructor, Utils::OpenHandle(*global_template)); - - proxy_template->SetInternalFieldCount( - global_template->InternalFieldCount()); - - // Migrate security handlers from global_template to - // proxy_template. Temporarily removing access check - // information from the global template. - if (!global_constructor->GetAccessCheckInfo()->IsUndefined(isolate)) { - i::FunctionTemplateInfo::SetAccessCheckInfo( - isolate, proxy_constructor, - i::handle(global_constructor->GetAccessCheckInfo(), isolate)); - proxy_constructor->set_needs_access_check( - global_constructor->needs_access_check()); - global_constructor->set_needs_access_check(false); - i::FunctionTemplateInfo::SetAccessCheckInfo( - isolate, global_constructor, - i::ReadOnlyRoots(isolate).undefined_value_handle()); - } - - // Same for other interceptors. If the global constructor has - // interceptors, we need to replace them temporarily with noop - // interceptors, so the map is correctly marked as having interceptors, - // but we don't invoke any. - if (!global_constructor->GetNamedPropertyHandler()->IsUndefined( - isolate)) { - named_interceptor = - handle(global_constructor->GetNamedPropertyHandler(), isolate); - i::FunctionTemplateInfo::SetNamedPropertyHandler( - isolate, global_constructor, - i::ReadOnlyRoots(isolate).noop_interceptor_info_handle()); - } - if (!global_constructor->GetIndexedPropertyHandler()->IsUndefined( - isolate)) { - indexed_interceptor = - handle(global_constructor->GetIndexedPropertyHandler(), isolate); - i::FunctionTemplateInfo::SetIndexedPropertyHandler( - isolate, global_constructor, - i::ReadOnlyRoots(isolate).noop_interceptor_info_handle()); - } - } - - i::MaybeHandle<i::JSGlobalProxy> maybe_proxy; - if (!maybe_global_proxy.IsEmpty()) { - maybe_proxy = i::Handle<i::JSGlobalProxy>::cast( - Utils::OpenHandle(*maybe_global_proxy.ToLocalChecked())); - } - // Create the environment. - InvokeBootstrapper<ObjectType> invoke; - result = invoke.Invoke(isolate, maybe_proxy, proxy_template, extensions, - context_snapshot_index, embedder_fields_deserializer, - microtask_queue); - - // Restore the access check info and interceptors on the global template. - if (!maybe_global_template.IsEmpty()) { - DCHECK(!global_constructor.is_null()); - DCHECK(!proxy_constructor.is_null()); - i::FunctionTemplateInfo::SetAccessCheckInfo( - isolate, global_constructor, - i::handle(proxy_constructor->GetAccessCheckInfo(), isolate)); - global_constructor->set_needs_access_check( - proxy_constructor->needs_access_check()); - i::FunctionTemplateInfo::SetNamedPropertyHandler( - isolate, global_constructor, named_interceptor); - i::FunctionTemplateInfo::SetIndexedPropertyHandler( - isolate, global_constructor, indexed_interceptor); - } - } - // Leave V8. - - return result; -} - -Local<Context> NewContext( - v8::Isolate* external_isolate, v8::ExtensionConfiguration* extensions, - v8::MaybeLocal<ObjectTemplate> global_template, - v8::MaybeLocal<Value> global_object, size_t context_snapshot_index, - v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, - v8::MicrotaskQueue* microtask_queue) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); - // TODO(jkummerow): This is for crbug.com/713699. Remove it if it doesn't - // fail. - // Sanity-check that the isolate is initialized and usable. - CHECK(isolate->builtins()->builtin(i::Builtins::kIllegal)->IsCode()); - - TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.NewContext"); - LOG_API(isolate, Context, New); - i::HandleScope scope(isolate); - ExtensionConfiguration no_extensions; - if (extensions == nullptr) extensions = &no_extensions; - i::Handle<i::Context> env = CreateEnvironment<i::Context>( - isolate, extensions, global_template, global_object, - context_snapshot_index, embedder_fields_deserializer, microtask_queue); - if (env.is_null()) { - if (isolate->has_pending_exception()) isolate->clear_pending_exception(); - return Local<Context>(); - } - return Utils::ToLocal(scope.CloseAndEscape(env)); -} - -Local<Context> v8::Context::New( - v8::Isolate* external_isolate, v8::ExtensionConfiguration* extensions, - v8::MaybeLocal<ObjectTemplate> global_template, - v8::MaybeLocal<Value> global_object, - DeserializeInternalFieldsCallback internal_fields_deserializer, - v8::MicrotaskQueue* microtask_queue) { - return NewContext(external_isolate, extensions, global_template, - global_object, 0, internal_fields_deserializer, - microtask_queue); -} - -MaybeLocal<Context> v8::Context::FromSnapshot( - v8::Isolate* external_isolate, size_t context_snapshot_index, - v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, - v8::ExtensionConfiguration* extensions, MaybeLocal<Value> global_object, - v8::MicrotaskQueue* microtask_queue) { - size_t index_including_default_context = context_snapshot_index + 1; - if (!i::Snapshot::HasContextSnapshot( - reinterpret_cast<i::Isolate*>(external_isolate), - index_including_default_context)) { - return MaybeLocal<Context>(); - } - return NewContext(external_isolate, extensions, MaybeLocal<ObjectTemplate>(), - global_object, index_including_default_context, - embedder_fields_deserializer, microtask_queue); -} - -MaybeLocal<Object> v8::Context::NewRemoteContext( - v8::Isolate* external_isolate, v8::Local<ObjectTemplate> global_template, - v8::MaybeLocal<v8::Value> global_object) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); - LOG_API(isolate, Context, NewRemoteContext); - i::HandleScope scope(isolate); - i::Handle<i::FunctionTemplateInfo> global_constructor = - EnsureConstructor(isolate, *global_template); - Utils::ApiCheck(global_constructor->needs_access_check(), - "v8::Context::NewRemoteContext", - "Global template needs to have access checks enabled."); - i::Handle<i::AccessCheckInfo> access_check_info = i::handle( - i::AccessCheckInfo::cast(global_constructor->GetAccessCheckInfo()), - isolate); - Utils::ApiCheck(access_check_info->named_interceptor() != i::Object(), - "v8::Context::NewRemoteContext", - "Global template needs to have access check handlers."); - i::Handle<i::JSObject> global_proxy = CreateEnvironment<i::JSGlobalProxy>( - isolate, nullptr, global_template, global_object, 0, - DeserializeInternalFieldsCallback(), nullptr); - if (global_proxy.is_null()) { - if (isolate->has_pending_exception()) isolate->clear_pending_exception(); - return MaybeLocal<Object>(); - } - return Utils::ToLocal(scope.CloseAndEscape(global_proxy)); -} - -void v8::Context::SetSecurityToken(Local<Value> token) { - i::Handle<i::Context> env = Utils::OpenHandle(this); - i::Handle<i::Object> token_handle = Utils::OpenHandle(*token); - env->set_security_token(*token_handle); -} - - -void v8::Context::UseDefaultSecurityToken() { - i::Handle<i::Context> env = Utils::OpenHandle(this); - env->set_security_token(env->global_object()); -} - - -Local<Value> v8::Context::GetSecurityToken() { - i::Handle<i::Context> env = Utils::OpenHandle(this); - i::Isolate* isolate = env->GetIsolate(); - i::Object security_token = env->security_token(); - i::Handle<i::Object> token_handle(security_token, isolate); - return Utils::ToLocal(token_handle); -} - - -v8::Isolate* Context::GetIsolate() { - i::Handle<i::Context> env = Utils::OpenHandle(this); - return reinterpret_cast<Isolate*>(env->GetIsolate()); -} - -v8::Local<v8::Object> Context::Global() { - i::Handle<i::Context> context = Utils::OpenHandle(this); - i::Isolate* isolate = context->GetIsolate(); - i::Handle<i::Object> global(context->global_proxy(), isolate); - // TODO(dcarney): This should always return the global proxy - // but can't presently as calls to GetProtoype will return the wrong result. - if (i::Handle<i::JSGlobalProxy>::cast( - global)->IsDetachedFrom(context->global_object())) { - global = i::Handle<i::Object>(context->global_object(), isolate); - } - return Utils::ToLocal(i::Handle<i::JSObject>::cast(global)); -} - - -void Context::DetachGlobal() { - i::Handle<i::Context> context = Utils::OpenHandle(this); - i::Isolate* isolate = context->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - isolate->bootstrapper()->DetachGlobal(context); -} - - -Local<v8::Object> Context::GetExtrasBindingObject() { - i::Handle<i::Context> context = Utils::OpenHandle(this); - i::Isolate* isolate = context->GetIsolate(); - i::Handle<i::JSObject> binding(context->extras_binding_object(), isolate); - return Utils::ToLocal(binding); -} - - -void Context::AllowCodeGenerationFromStrings(bool allow) { - i::Handle<i::Context> context = Utils::OpenHandle(this); - i::Isolate* isolate = context->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - context->set_allow_code_gen_from_strings( - allow ? i::ReadOnlyRoots(isolate).true_value() - : i::ReadOnlyRoots(isolate).false_value()); -} - - -bool Context::IsCodeGenerationFromStringsAllowed() { - i::Handle<i::Context> context = Utils::OpenHandle(this); - return !context->allow_code_gen_from_strings()->IsFalse( - context->GetIsolate()); -} - - -void Context::SetErrorMessageForCodeGenerationFromStrings(Local<String> error) { - i::Handle<i::Context> context = Utils::OpenHandle(this); - i::Handle<i::String> error_handle = Utils::OpenHandle(*error); - context->set_error_message_for_code_gen_from_strings(*error_handle); -} - -namespace { -i::Address* GetSerializedDataFromFixedArray(i::Isolate* isolate, - i::FixedArray list, size_t index) { - if (index < static_cast<size_t>(list->length())) { - int int_index = static_cast<int>(index); - i::Object object = list->get(int_index); - if (!object->IsTheHole(isolate)) { - list->set_the_hole(isolate, int_index); - // Shrink the list so that the last element is not the hole (unless it's - // the first element, because we don't want to end up with a non-canonical - // empty FixedArray). - int last = list->length() - 1; - while (last >= 0 && list->is_the_hole(isolate, last)) last--; - if (last != -1) list->Shrink(isolate, last + 1); - return i::Handle<i::Object>(object, isolate).location(); - } - } - return nullptr; -} -} // anonymous namespace - -i::Address* Context::GetDataFromSnapshotOnce(size_t index) { - auto context = Utils::OpenHandle(this); - i::Isolate* i_isolate = context->GetIsolate(); - i::FixedArray list = context->serialized_objects(); - return GetSerializedDataFromFixedArray(i_isolate, list, index); -} - -MaybeLocal<v8::Object> ObjectTemplate::NewInstance(Local<Context> context) { - PREPARE_FOR_EXECUTION(context, ObjectTemplate, NewInstance, Object); - auto self = Utils::OpenHandle(this); - Local<Object> result; - has_pending_exception = !ToLocal<Object>( - i::ApiNatives::InstantiateObject(isolate, self), &result); - RETURN_ON_FAILED_EXECUTION(Object); - RETURN_ESCAPED(result); -} - -void v8::ObjectTemplate::CheckCast(Data* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsObjectTemplateInfo(), "v8::ObjectTemplate::Cast", - "Could not convert to object template"); -} - -void v8::FunctionTemplate::CheckCast(Data* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::FunctionTemplate::Cast", - "Could not convert to function template"); -} - -void v8::Signature::CheckCast(Data* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::Signature::Cast", - "Could not convert to signature"); -} - -void v8::AccessorSignature::CheckCast(Data* that) { - i::Handle<i::Object> obj = Utils::OpenHandle(that); - Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::AccessorSignature::Cast", - "Could not convert to accessor signature"); -} - -MaybeLocal<v8::Function> FunctionTemplate::GetFunction(Local<Context> context) { - PREPARE_FOR_EXECUTION(context, FunctionTemplate, GetFunction, Function); - auto self = Utils::OpenHandle(this); - Local<Function> result; - has_pending_exception = - !ToLocal<Function>(i::ApiNatives::InstantiateFunction(self), &result); - RETURN_ON_FAILED_EXECUTION(Function); - RETURN_ESCAPED(result); -} - -MaybeLocal<v8::Object> FunctionTemplate::NewRemoteInstance() { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - LOG_API(isolate, FunctionTemplate, NewRemoteInstance); - i::HandleScope scope(isolate); - i::Handle<i::FunctionTemplateInfo> constructor = - EnsureConstructor(isolate, *InstanceTemplate()); - Utils::ApiCheck(constructor->needs_access_check(), - "v8::FunctionTemplate::NewRemoteInstance", - "InstanceTemplate needs to have access checks enabled."); - i::Handle<i::AccessCheckInfo> access_check_info = i::handle( - i::AccessCheckInfo::cast(constructor->GetAccessCheckInfo()), isolate); - Utils::ApiCheck(access_check_info->named_interceptor() != i::Object(), - "v8::FunctionTemplate::NewRemoteInstance", - "InstanceTemplate needs to have access check handlers."); - i::Handle<i::JSObject> object; - if (!i::ApiNatives::InstantiateRemoteObject( - Utils::OpenHandle(*InstanceTemplate())) - .ToHandle(&object)) { - if (isolate->has_pending_exception()) { - isolate->OptionalRescheduleException(true); - } - return MaybeLocal<Object>(); - } - return Utils::ToLocal(scope.CloseAndEscape(object)); -} - -bool FunctionTemplate::HasInstance(v8::Local<v8::Value> value) { - auto self = Utils::OpenHandle(this); - auto obj = Utils::OpenHandle(*value); - if (obj->IsJSObject() && self->IsTemplateFor(i::JSObject::cast(*obj))) { - return true; - } - if (obj->IsJSGlobalProxy()) { - // If it's a global proxy, then test with the global object. Note that the - // inner global object may not necessarily be a JSGlobalObject. - i::PrototypeIterator iter(self->GetIsolate(), - i::JSObject::cast(*obj)->map()); - // The global proxy should always have a prototype, as it is a bug to call - // this on a detached JSGlobalProxy. - DCHECK(!iter.IsAtEnd()); - return self->IsTemplateFor(iter.GetCurrent<i::JSObject>()); - } - return false; -} - - -Local<External> v8::External::New(Isolate* isolate, void* value) { - STATIC_ASSERT(sizeof(value) == sizeof(i::Address)); - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, External, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSObject> external = i_isolate->factory()->NewExternal(value); - return Utils::ExternalToLocal(external); -} - - -void* External::Value() const { - return ExternalValue(*Utils::OpenHandle(this)); -} - - -// anonymous namespace for string creation helper functions -namespace { - -inline int StringLength(const char* string) { - return i::StrLength(string); -} - - -inline int StringLength(const uint8_t* string) { - return i::StrLength(reinterpret_cast<const char*>(string)); -} - - -inline int StringLength(const uint16_t* string) { - int length = 0; - while (string[length] != '\0') - length++; - return length; -} - -V8_WARN_UNUSED_RESULT -inline i::MaybeHandle<i::String> NewString(i::Factory* factory, - v8::NewStringType type, - i::Vector<const char> string) { - if (type == v8::NewStringType::kInternalized) { - return factory->InternalizeUtf8String(string); - } - return factory->NewStringFromUtf8(string); -} - -V8_WARN_UNUSED_RESULT -inline i::MaybeHandle<i::String> NewString(i::Factory* factory, - v8::NewStringType type, - i::Vector<const uint8_t> string) { - if (type == v8::NewStringType::kInternalized) { - return factory->InternalizeOneByteString(string); - } - return factory->NewStringFromOneByte(string); -} - -V8_WARN_UNUSED_RESULT -inline i::MaybeHandle<i::String> NewString(i::Factory* factory, - v8::NewStringType type, - i::Vector<const uint16_t> string) { - if (type == v8::NewStringType::kInternalized) { - return factory->InternalizeTwoByteString(string); - } - return factory->NewStringFromTwoByte(string); -} - - -STATIC_ASSERT(v8::String::kMaxLength == i::String::kMaxLength); - -} // anonymous namespace - -// TODO(dcarney): throw a context free exception. -#define NEW_STRING(isolate, class_name, function_name, Char, data, type, \ - length) \ - MaybeLocal<String> result; \ - if (length == 0) { \ - result = String::Empty(isolate); \ - } else if (length > i::String::kMaxLength) { \ - result = MaybeLocal<String>(); \ - } else { \ - i::Isolate* i_isolate = reinterpret_cast<internal::Isolate*>(isolate); \ - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); \ - LOG_API(i_isolate, class_name, function_name); \ - if (length < 0) length = StringLength(data); \ - i::Handle<i::String> handle_result = \ - NewString(i_isolate->factory(), type, \ - i::Vector<const Char>(data, length)) \ - .ToHandleChecked(); \ - result = Utils::ToLocal(handle_result); \ - } - -Local<String> String::NewFromUtf8(Isolate* isolate, - const char* data, - NewStringType type, - int length) { - NEW_STRING(isolate, String, NewFromUtf8, char, data, - static_cast<v8::NewStringType>(type), length); - RETURN_TO_LOCAL_UNCHECKED(result, String); -} - - -MaybeLocal<String> String::NewFromUtf8(Isolate* isolate, const char* data, - v8::NewStringType type, int length) { - NEW_STRING(isolate, String, NewFromUtf8, char, data, type, length); - return result; -} - - -MaybeLocal<String> String::NewFromOneByte(Isolate* isolate, const uint8_t* data, - v8::NewStringType type, int length) { - NEW_STRING(isolate, String, NewFromOneByte, uint8_t, data, type, length); - return result; -} - - -Local<String> String::NewFromTwoByte(Isolate* isolate, - const uint16_t* data, - NewStringType type, - int length) { - NEW_STRING(isolate, String, NewFromTwoByte, uint16_t, data, - static_cast<v8::NewStringType>(type), length); - RETURN_TO_LOCAL_UNCHECKED(result, String); -} - - -MaybeLocal<String> String::NewFromTwoByte(Isolate* isolate, - const uint16_t* data, - v8::NewStringType type, int length) { - NEW_STRING(isolate, String, NewFromTwoByte, uint16_t, data, type, length); - return result; -} - -Local<String> v8::String::Concat(Isolate* v8_isolate, Local<String> left, - Local<String> right) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::Handle<i::String> left_string = Utils::OpenHandle(*left); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - LOG_API(isolate, String, Concat); - i::Handle<i::String> right_string = Utils::OpenHandle(*right); - // If we are steering towards a range error, do not wait for the error to be - // thrown, and return the null handle instead. - if (left_string->length() + right_string->length() > i::String::kMaxLength) { - return Local<String>(); - } - i::Handle<i::String> result = isolate->factory()->NewConsString( - left_string, right_string).ToHandleChecked(); - return Utils::ToLocal(result); -} - -MaybeLocal<String> v8::String::NewExternalTwoByte( - Isolate* isolate, v8::String::ExternalStringResource* resource) { - CHECK(resource && resource->data()); - // TODO(dcarney): throw a context free exception. - if (resource->length() > static_cast<size_t>(i::String::kMaxLength)) { - return MaybeLocal<String>(); - } - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - LOG_API(i_isolate, String, NewExternalTwoByte); - if (resource->length() > 0) { - i::Handle<i::String> string = i_isolate->factory() - ->NewExternalStringFromTwoByte(resource) - .ToHandleChecked(); - return Utils::ToLocal(string); - } else { - // The resource isn't going to be used, free it immediately. - resource->Dispose(); - return Utils::ToLocal(i_isolate->factory()->empty_string()); - } -} - - -MaybeLocal<String> v8::String::NewExternalOneByte( - Isolate* isolate, v8::String::ExternalOneByteStringResource* resource) { - CHECK(resource && resource->data()); - // TODO(dcarney): throw a context free exception. - if (resource->length() > static_cast<size_t>(i::String::kMaxLength)) { - return MaybeLocal<String>(); - } - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - LOG_API(i_isolate, String, NewExternalOneByte); - if (resource->length() > 0) { - i::Handle<i::String> string = i_isolate->factory() - ->NewExternalStringFromOneByte(resource) - .ToHandleChecked(); - return Utils::ToLocal(string); - } else { - // The resource isn't going to be used, free it immediately. - resource->Dispose(); - return Utils::ToLocal(i_isolate->factory()->empty_string()); - } -} - - -Local<String> v8::String::NewExternal( - Isolate* isolate, v8::String::ExternalOneByteStringResource* resource) { - RETURN_TO_LOCAL_UNCHECKED(NewExternalOneByte(isolate, resource), String); -} - - -bool v8::String::MakeExternal(v8::String::ExternalStringResource* resource) { - i::DisallowHeapAllocation no_allocation; - - i::String obj = *Utils::OpenHandle(this); - - if (obj->IsThinString()) { - obj = i::ThinString::cast(obj)->actual(); - } - - if (!obj->SupportsExternalization()) { - return false; - } - - // It is safe to call GetIsolateFromWritableHeapObject because - // SupportsExternalization already checked that the object is writable. - i::Isolate* isolate; - i::GetIsolateFromWritableObject(obj, &isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - - CHECK(resource && resource->data()); - - bool result = obj->MakeExternal(resource); - DCHECK(result); - DCHECK(obj->IsExternalString()); - return result; -} - - -bool v8::String::MakeExternal( - v8::String::ExternalOneByteStringResource* resource) { - i::DisallowHeapAllocation no_allocation; - - i::String obj = *Utils::OpenHandle(this); - - if (obj->IsThinString()) { - obj = i::ThinString::cast(obj)->actual(); - } - - if (!obj->SupportsExternalization()) { - return false; - } - - // It is safe to call GetIsolateFromWritableHeapObject because - // SupportsExternalization already checked that the object is writable. - i::Isolate* isolate; - i::GetIsolateFromWritableObject(obj, &isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - - CHECK(resource && resource->data()); - - bool result = obj->MakeExternal(resource); - DCHECK_IMPLIES(result, obj->IsExternalString()); - return result; -} - - -bool v8::String::CanMakeExternal() { - i::DisallowHeapAllocation no_allocation; - i::String obj = *Utils::OpenHandle(this); - - if (obj->IsThinString()) { - obj = i::ThinString::cast(obj)->actual(); - } - - if (!obj->SupportsExternalization()) { - return false; - } - - // Only old space strings should be externalized. - return !i::Heap::InYoungGeneration(obj); -} - -bool v8::String::StringEquals(Local<String> that) { - auto self = Utils::OpenHandle(this); - auto other = Utils::OpenHandle(*that); - return self->Equals(*other); -} - -Isolate* v8::Object::GetIsolate() { - i::Isolate* i_isolate = Utils::OpenHandle(this)->GetIsolate(); - return reinterpret_cast<Isolate*>(i_isolate); -} - - -Local<v8::Object> v8::Object::New(Isolate* isolate) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, Object, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSObject> obj = - i_isolate->factory()->NewJSObject(i_isolate->object_function()); - return Utils::ToLocal(obj); -} - -Local<v8::Object> v8::Object::New(Isolate* isolate, - Local<Value> prototype_or_null, - Local<Name>* names, Local<Value>* values, - size_t length) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::Handle<i::Object> proto = Utils::OpenHandle(*prototype_or_null); - if (!Utils::ApiCheck(proto->IsNull() || proto->IsJSReceiver(), - "v8::Object::New", "prototype must be null or object")) { - return Local<v8::Object>(); - } - LOG_API(i_isolate, Object, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - - // We assume that this API is mostly used to create objects with named - // properties, and so we default to creating a properties backing store - // large enough to hold all of them, while we start with no elements - // (see http://bit.ly/v8-fast-object-create-cpp for the motivation). - i::Handle<i::NameDictionary> properties = - i::NameDictionary::New(i_isolate, static_cast<int>(length)); - i::Handle<i::FixedArrayBase> elements = - i_isolate->factory()->empty_fixed_array(); - for (size_t i = 0; i < length; ++i) { - i::Handle<i::Name> name = Utils::OpenHandle(*names[i]); - i::Handle<i::Object> value = Utils::OpenHandle(*values[i]); - - // See if the {name} is a valid array index, in which case we need to - // add the {name}/{value} pair to the {elements}, otherwise they end - // up in the {properties} backing store. - uint32_t index; - if (name->AsArrayIndex(&index)) { - // If this is the first element, allocate a proper - // dictionary elements backing store for {elements}. - if (!elements->IsNumberDictionary()) { - elements = - i::NumberDictionary::New(i_isolate, static_cast<int>(length)); - } - elements = i::NumberDictionary::Set( - i_isolate, i::Handle<i::NumberDictionary>::cast(elements), index, - value); - } else { - // Internalize the {name} first. - name = i_isolate->factory()->InternalizeName(name); - int const entry = properties->FindEntry(i_isolate, name); - if (entry == i::NameDictionary::kNotFound) { - // Add the {name}/{value} pair as a new entry. - properties = i::NameDictionary::Add(i_isolate, properties, name, value, - i::PropertyDetails::Empty()); - } else { - // Overwrite the {entry} with the {value}. - properties->ValueAtPut(entry, *value); - } - } - } - i::Handle<i::JSObject> obj = - i_isolate->factory()->NewSlowJSObjectWithPropertiesAndElements( - i::Handle<i::HeapObject>::cast(proto), properties, elements); - return Utils::ToLocal(obj); -} - -Local<v8::Value> v8::NumberObject::New(Isolate* isolate, double value) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, NumberObject, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Object> number = i_isolate->factory()->NewNumber(value); - i::Handle<i::Object> obj = - i::Object::ToObject(i_isolate, number).ToHandleChecked(); - return Utils::ToLocal(obj); -} - - -double v8::NumberObject::ValueOf() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::JSValue> jsvalue = i::Handle<i::JSValue>::cast(obj); - i::Isolate* isolate = jsvalue->GetIsolate(); - LOG_API(isolate, NumberObject, NumberValue); - return jsvalue->value()->Number(); -} - -Local<v8::Value> v8::BigIntObject::New(Isolate* isolate, int64_t value) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, BigIntObject, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Object> bigint = i::BigInt::FromInt64(i_isolate, value); - i::Handle<i::Object> obj = - i::Object::ToObject(i_isolate, bigint).ToHandleChecked(); - return Utils::ToLocal(obj); -} - -Local<v8::BigInt> v8::BigIntObject::ValueOf() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::JSValue> jsvalue = i::Handle<i::JSValue>::cast(obj); - i::Isolate* isolate = jsvalue->GetIsolate(); - LOG_API(isolate, BigIntObject, BigIntValue); - return Utils::ToLocal( - i::Handle<i::BigInt>(i::BigInt::cast(jsvalue->value()), isolate)); -} - -Local<v8::Value> v8::BooleanObject::New(Isolate* isolate, bool value) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, BooleanObject, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Object> boolean(value - ? i::ReadOnlyRoots(i_isolate).true_value() - : i::ReadOnlyRoots(i_isolate).false_value(), - i_isolate); - i::Handle<i::Object> obj = - i::Object::ToObject(i_isolate, boolean).ToHandleChecked(); - return Utils::ToLocal(obj); -} - - -bool v8::BooleanObject::ValueOf() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::JSValue> jsvalue = i::Handle<i::JSValue>::cast(obj); - i::Isolate* isolate = jsvalue->GetIsolate(); - LOG_API(isolate, BooleanObject, BooleanValue); - return jsvalue->value()->IsTrue(isolate); -} - - -Local<v8::Value> v8::StringObject::New(Isolate* v8_isolate, - Local<String> value) { - i::Handle<i::String> string = Utils::OpenHandle(*value); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - LOG_API(isolate, StringObject, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::Object> obj = - i::Object::ToObject(isolate, string).ToHandleChecked(); - return Utils::ToLocal(obj); -} - - -Local<v8::String> v8::StringObject::ValueOf() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::JSValue> jsvalue = i::Handle<i::JSValue>::cast(obj); - i::Isolate* isolate = jsvalue->GetIsolate(); - LOG_API(isolate, StringObject, StringValue); - return Utils::ToLocal( - i::Handle<i::String>(i::String::cast(jsvalue->value()), isolate)); -} - - -Local<v8::Value> v8::SymbolObject::New(Isolate* isolate, Local<Symbol> value) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, SymbolObject, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Object> obj = i::Object::ToObject( - i_isolate, Utils::OpenHandle(*value)).ToHandleChecked(); - return Utils::ToLocal(obj); -} - - -Local<v8::Symbol> v8::SymbolObject::ValueOf() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::JSValue> jsvalue = i::Handle<i::JSValue>::cast(obj); - i::Isolate* isolate = jsvalue->GetIsolate(); - LOG_API(isolate, SymbolObject, SymbolValue); - return Utils::ToLocal( - i::Handle<i::Symbol>(i::Symbol::cast(jsvalue->value()), isolate)); -} - - -MaybeLocal<v8::Value> v8::Date::New(Local<Context> context, double time) { - if (std::isnan(time)) { - // Introduce only canonical NaN value into the VM, to avoid signaling NaNs. - time = std::numeric_limits<double>::quiet_NaN(); - } - PREPARE_FOR_EXECUTION(context, Date, New, Value); - Local<Value> result; - has_pending_exception = !ToLocal<Value>( - i::JSDate::New(isolate->date_function(), isolate->date_function(), time), - &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - - -double v8::Date::ValueOf() const { - i::Handle<i::Object> obj = Utils::OpenHandle(this); - i::Handle<i::JSDate> jsdate = i::Handle<i::JSDate>::cast(obj); - i::Isolate* isolate = jsdate->GetIsolate(); - LOG_API(isolate, Date, NumberValue); - return jsdate->value()->Number(); -} - -// Assert that the static TimeZoneDetection cast in -// DateTimeConfigurationChangeNotification is valid. -#define TIME_ZONE_DETECTION_ASSERT_EQ(value) \ - STATIC_ASSERT( \ - static_cast<int>(v8::Isolate::TimeZoneDetection::value) == \ - static_cast<int>(base::TimezoneCache::TimeZoneDetection::value)); \ - STATIC_ASSERT(static_cast<int>(v8::Isolate::TimeZoneDetection::value) == \ - static_cast<int>(v8::Date::TimeZoneDetection::value)); -TIME_ZONE_DETECTION_ASSERT_EQ(kSkip) -TIME_ZONE_DETECTION_ASSERT_EQ(kRedetect) -#undef TIME_ZONE_DETECTION_ASSERT_EQ - -// static -void v8::Date::DateTimeConfigurationChangeNotification( - Isolate* isolate, TimeZoneDetection time_zone_detection) { - isolate->DateTimeConfigurationChangeNotification( - static_cast<v8::Isolate::TimeZoneDetection>(time_zone_detection)); -} - -MaybeLocal<v8::RegExp> v8::RegExp::New(Local<Context> context, - Local<String> pattern, Flags flags) { - PREPARE_FOR_EXECUTION(context, RegExp, New, RegExp); - Local<v8::RegExp> result; - has_pending_exception = - !ToLocal<RegExp>(i::JSRegExp::New(isolate, Utils::OpenHandle(*pattern), - static_cast<i::JSRegExp::Flags>(flags)), - &result); - RETURN_ON_FAILED_EXECUTION(RegExp); - RETURN_ESCAPED(result); -} - - -Local<v8::String> v8::RegExp::GetSource() const { - i::Handle<i::JSRegExp> obj = Utils::OpenHandle(this); - return Utils::ToLocal( - i::Handle<i::String>(obj->Pattern(), obj->GetIsolate())); -} - - -// Assert that the static flags cast in GetFlags is valid. -#define REGEXP_FLAG_ASSERT_EQ(flag) \ - STATIC_ASSERT(static_cast<int>(v8::RegExp::flag) == \ - static_cast<int>(i::JSRegExp::flag)) -REGEXP_FLAG_ASSERT_EQ(kNone); -REGEXP_FLAG_ASSERT_EQ(kGlobal); -REGEXP_FLAG_ASSERT_EQ(kIgnoreCase); -REGEXP_FLAG_ASSERT_EQ(kMultiline); -REGEXP_FLAG_ASSERT_EQ(kSticky); -REGEXP_FLAG_ASSERT_EQ(kUnicode); -#undef REGEXP_FLAG_ASSERT_EQ - -v8::RegExp::Flags v8::RegExp::GetFlags() const { - i::Handle<i::JSRegExp> obj = Utils::OpenHandle(this); - return RegExp::Flags(static_cast<int>(obj->GetFlags())); -} - - -Local<v8::Array> v8::Array::New(Isolate* isolate, int length) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, Array, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - int real_length = length > 0 ? length : 0; - i::Handle<i::JSArray> obj = i_isolate->factory()->NewJSArray(real_length); - i::Handle<i::Object> length_obj = - i_isolate->factory()->NewNumberFromInt(real_length); - obj->set_length(*length_obj); - return Utils::ToLocal(obj); -} - -Local<v8::Array> v8::Array::New(Isolate* isolate, Local<Value>* elements, - size_t length) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::Factory* factory = i_isolate->factory(); - LOG_API(i_isolate, Array, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - int len = static_cast<int>(length); - - i::Handle<i::FixedArray> result = factory->NewFixedArray(len); - for (int i = 0; i < len; i++) { - i::Handle<i::Object> element = Utils::OpenHandle(*elements[i]); - result->set(i, *element); - } - - return Utils::ToLocal( - factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, len)); -} - -uint32_t v8::Array::Length() const { - i::Handle<i::JSArray> obj = Utils::OpenHandle(this); - i::Object length = obj->length(); - if (length->IsSmi()) { - return i::Smi::ToInt(length); - } else { - return static_cast<uint32_t>(length->Number()); - } -} - - -Local<v8::Map> v8::Map::New(Isolate* isolate) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, Map, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSMap> obj = i_isolate->factory()->NewJSMap(); - return Utils::ToLocal(obj); -} - - -size_t v8::Map::Size() const { - i::Handle<i::JSMap> obj = Utils::OpenHandle(this); - return i::OrderedHashMap::cast(obj->table())->NumberOfElements(); -} - - -void Map::Clear() { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - LOG_API(isolate, Map, Clear); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::JSMap::Clear(isolate, self); -} - - -MaybeLocal<Value> Map::Get(Local<Context> context, Local<Value> key) { - PREPARE_FOR_EXECUTION(context, Map, Get, Value); - auto self = Utils::OpenHandle(this); - Local<Value> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = - !ToLocal<Value>(i::Execution::Call(isolate, isolate->map_get(), self, - arraysize(argv), argv), - &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - - -MaybeLocal<Map> Map::Set(Local<Context> context, Local<Value> key, - Local<Value> value) { - PREPARE_FOR_EXECUTION(context, Map, Set, Map); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key), - Utils::OpenHandle(*value)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->map_set(), self, - arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Map); - RETURN_ESCAPED(Local<Map>::Cast(Utils::ToLocal(result))); -} - - -Maybe<bool> Map::Has(Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Map, Has, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->map_has(), self, - arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(result->IsTrue(isolate)); -} - - -Maybe<bool> Map::Delete(Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Map, Delete, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->map_delete(), - self, arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(result->IsTrue(isolate)); -} - -namespace { - -enum class MapAsArrayKind { - kEntries = i::JS_MAP_KEY_VALUE_ITERATOR_TYPE, - kKeys = i::JS_MAP_KEY_ITERATOR_TYPE, - kValues = i::JS_MAP_VALUE_ITERATOR_TYPE -}; - -enum class SetAsArrayKind { - kEntries = i::JS_SET_KEY_VALUE_ITERATOR_TYPE, - kValues = i::JS_SET_VALUE_ITERATOR_TYPE -}; - -i::Handle<i::JSArray> MapAsArray(i::Isolate* isolate, i::Object table_obj, - int offset, MapAsArrayKind kind) { - i::Factory* factory = isolate->factory(); - i::Handle<i::OrderedHashMap> table(i::OrderedHashMap::cast(table_obj), - isolate); - const bool collect_keys = - kind == MapAsArrayKind::kEntries || kind == MapAsArrayKind::kKeys; - const bool collect_values = - kind == MapAsArrayKind::kEntries || kind == MapAsArrayKind::kValues; - int capacity = table->UsedCapacity(); - int max_length = - (capacity - offset) * ((collect_keys && collect_values) ? 2 : 1); - i::Handle<i::FixedArray> result = factory->NewFixedArray(max_length); - int result_index = 0; - { - i::DisallowHeapAllocation no_gc; - i::Oddball the_hole = i::ReadOnlyRoots(isolate).the_hole_value(); - for (int i = offset; i < capacity; ++i) { - i::Object key = table->KeyAt(i); - if (key == the_hole) continue; - if (collect_keys) result->set(result_index++, key); - if (collect_values) result->set(result_index++, table->ValueAt(i)); - } - } - DCHECK_GE(max_length, result_index); - if (result_index == 0) return factory->NewJSArray(0); - result->Shrink(isolate, result_index); - return factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, - result_index); -} - -} // namespace - -Local<Array> Map::AsArray() const { - i::Handle<i::JSMap> obj = Utils::OpenHandle(this); - i::Isolate* isolate = obj->GetIsolate(); - LOG_API(isolate, Map, AsArray); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - return Utils::ToLocal( - MapAsArray(isolate, obj->table(), 0, MapAsArrayKind::kEntries)); -} - - -Local<v8::Set> v8::Set::New(Isolate* isolate) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, Set, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSSet> obj = i_isolate->factory()->NewJSSet(); - return Utils::ToLocal(obj); -} - - -size_t v8::Set::Size() const { - i::Handle<i::JSSet> obj = Utils::OpenHandle(this); - return i::OrderedHashSet::cast(obj->table())->NumberOfElements(); -} - - -void Set::Clear() { - auto self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - LOG_API(isolate, Set, Clear); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::JSSet::Clear(isolate, self); -} - - -MaybeLocal<Set> Set::Add(Local<Context> context, Local<Value> key) { - PREPARE_FOR_EXECUTION(context, Set, Add, Set); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->set_add(), self, - arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Set); - RETURN_ESCAPED(Local<Set>::Cast(Utils::ToLocal(result))); -} - - -Maybe<bool> Set::Has(Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Set, Has, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->set_has(), self, - arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(result->IsTrue(isolate)); -} - - -Maybe<bool> Set::Delete(Local<Context> context, Local<Value> key) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Set, Delete, Nothing<bool>(), i::HandleScope); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->set_delete(), - self, arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(result->IsTrue(isolate)); -} - -namespace { -i::Handle<i::JSArray> SetAsArray(i::Isolate* isolate, i::Object table_obj, - int offset, SetAsArrayKind kind) { - i::Factory* factory = isolate->factory(); - i::Handle<i::OrderedHashSet> table(i::OrderedHashSet::cast(table_obj), - isolate); - // Elements skipped by |offset| may already be deleted. - int capacity = table->UsedCapacity(); - const bool collect_key_values = kind == SetAsArrayKind::kEntries; - int max_length = (capacity - offset) * (collect_key_values ? 2 : 1); - if (max_length == 0) return factory->NewJSArray(0); - i::Handle<i::FixedArray> result = factory->NewFixedArray(max_length); - int result_index = 0; - { - i::DisallowHeapAllocation no_gc; - i::Oddball the_hole = i::ReadOnlyRoots(isolate).the_hole_value(); - for (int i = offset; i < capacity; ++i) { - i::Object key = table->KeyAt(i); - if (key == the_hole) continue; - result->set(result_index++, key); - if (collect_key_values) result->set(result_index++, key); - } - } - DCHECK_GE(max_length, result_index); - if (result_index == 0) return factory->NewJSArray(0); - result->Shrink(isolate, result_index); - return factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, - result_index); -} -} // namespace - -Local<Array> Set::AsArray() const { - i::Handle<i::JSSet> obj = Utils::OpenHandle(this); - i::Isolate* isolate = obj->GetIsolate(); - LOG_API(isolate, Set, AsArray); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - return Utils::ToLocal( - SetAsArray(isolate, obj->table(), 0, SetAsArrayKind::kValues)); -} - - -MaybeLocal<Promise::Resolver> Promise::Resolver::New(Local<Context> context) { - PREPARE_FOR_EXECUTION(context, Promise_Resolver, New, Resolver); - Local<Promise::Resolver> result; - has_pending_exception = - !ToLocal<Promise::Resolver>(isolate->factory()->NewJSPromise(), &result); - RETURN_ON_FAILED_EXECUTION(Promise::Resolver); - RETURN_ESCAPED(result); -} - - -Local<Promise> Promise::Resolver::GetPromise() { - i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); - return Local<Promise>::Cast(Utils::ToLocal(promise)); -} - - -Maybe<bool> Promise::Resolver::Resolve(Local<Context> context, - Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Promise_Resolver, Resolve, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto promise = i::Handle<i::JSPromise>::cast(self); - - if (promise->status() != Promise::kPending) { - return Just(true); - } - - has_pending_exception = - i::JSPromise::Resolve(promise, Utils::OpenHandle(*value)).is_null(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - - -Maybe<bool> Promise::Resolver::Reject(Local<Context> context, - Local<Value> value) { - auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8(isolate, context, Promise_Resolver, Reject, Nothing<bool>(), - i::HandleScope); - auto self = Utils::OpenHandle(this); - auto promise = i::Handle<i::JSPromise>::cast(self); - - if (promise->status() != Promise::kPending) { - return Just(true); - } - - has_pending_exception = - i::JSPromise::Reject(promise, Utils::OpenHandle(*value)).is_null(); - RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); - return Just(true); -} - - -MaybeLocal<Promise> Promise::Catch(Local<Context> context, - Local<Function> handler) { - PREPARE_FOR_EXECUTION(context, Promise, Catch, Promise); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> argv[] = { Utils::OpenHandle(*handler) }; - i::Handle<i::Object> result; - has_pending_exception = !i::Execution::Call(isolate, isolate->promise_catch(), - self, arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Promise); - RETURN_ESCAPED(Local<Promise>::Cast(Utils::ToLocal(result))); -} - - -MaybeLocal<Promise> Promise::Then(Local<Context> context, - Local<Function> handler) { - PREPARE_FOR_EXECUTION(context, Promise, Then, Promise); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> argv[] = { Utils::OpenHandle(*handler) }; - i::Handle<i::Object> result; - has_pending_exception = !i::Execution::Call(isolate, isolate->promise_then(), - self, arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Promise); - RETURN_ESCAPED(Local<Promise>::Cast(Utils::ToLocal(result))); -} - -MaybeLocal<Promise> Promise::Then(Local<Context> context, - Local<Function> on_fulfilled, - Local<Function> on_rejected) { - PREPARE_FOR_EXECUTION(context, Promise, Then, Promise); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*on_fulfilled), - Utils::OpenHandle(*on_rejected)}; - i::Handle<i::Object> result; - has_pending_exception = !i::Execution::Call(isolate, isolate->promise_then(), - self, arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(Promise); - RETURN_ESCAPED(Local<Promise>::Cast(Utils::ToLocal(result))); -} - -bool Promise::HasHandler() { - i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); - i::Isolate* isolate = promise->GetIsolate(); - LOG_API(isolate, Promise, HasRejectHandler); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - if (promise->IsJSPromise()) { - i::Handle<i::JSPromise> js_promise = i::Handle<i::JSPromise>::cast(promise); - return js_promise->has_handler(); - } - return false; -} - -Local<Value> Promise::Result() { - i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); - i::Isolate* isolate = promise->GetIsolate(); - LOG_API(isolate, Promise, Result); - i::Handle<i::JSPromise> js_promise = i::Handle<i::JSPromise>::cast(promise); - Utils::ApiCheck(js_promise->status() != kPending, "v8_Promise_Result", - "Promise is still pending"); - i::Handle<i::Object> result(js_promise->result(), isolate); - return Utils::ToLocal(result); -} - -Promise::PromiseState Promise::State() { - i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); - i::Isolate* isolate = promise->GetIsolate(); - LOG_API(isolate, Promise, Status); - i::Handle<i::JSPromise> js_promise = i::Handle<i::JSPromise>::cast(promise); - return static_cast<PromiseState>(js_promise->status()); -} - -void Promise::MarkAsHandled() { - i::Handle<i::JSPromise> js_promise = Utils::OpenHandle(this); - js_promise->set_has_handler(true); -} - -Local<Value> Proxy::GetTarget() { - i::Handle<i::JSProxy> self = Utils::OpenHandle(this); - i::Handle<i::Object> target(self->target(), self->GetIsolate()); - return Utils::ToLocal(target); -} - - -Local<Value> Proxy::GetHandler() { - i::Handle<i::JSProxy> self = Utils::OpenHandle(this); - i::Handle<i::Object> handler(self->handler(), self->GetIsolate()); - return Utils::ToLocal(handler); -} - - -bool Proxy::IsRevoked() { - i::Handle<i::JSProxy> self = Utils::OpenHandle(this); - return self->IsRevoked(); -} - - -void Proxy::Revoke() { - i::Handle<i::JSProxy> self = Utils::OpenHandle(this); - i::JSProxy::Revoke(self); -} - - -MaybeLocal<Proxy> Proxy::New(Local<Context> context, Local<Object> local_target, - Local<Object> local_handler) { - PREPARE_FOR_EXECUTION(context, Proxy, New, Proxy); - i::Handle<i::JSReceiver> target = Utils::OpenHandle(*local_target); - i::Handle<i::JSReceiver> handler = Utils::OpenHandle(*local_handler); - Local<Proxy> result; - has_pending_exception = - !ToLocal<Proxy>(i::JSProxy::New(isolate, target, handler), &result); - RETURN_ON_FAILED_EXECUTION(Proxy); - RETURN_ESCAPED(result); -} - -CompiledWasmModule::CompiledWasmModule( - std::shared_ptr<internal::wasm::NativeModule> native_module) - : native_module_(std::move(native_module)) { - CHECK_NOT_NULL(native_module_); -} - -OwnedBuffer CompiledWasmModule::Serialize() { - i::wasm::WasmSerializer wasm_serializer(native_module_.get()); - size_t buffer_size = wasm_serializer.GetSerializedNativeModuleSize(); - std::unique_ptr<uint8_t[]> buffer(new uint8_t[buffer_size]); - if (!wasm_serializer.SerializeNativeModule({buffer.get(), buffer_size})) - return {}; - return {std::move(buffer), buffer_size}; -} - -MemorySpan<const uint8_t> CompiledWasmModule::GetWireBytesRef() { - i::Vector<const uint8_t> bytes_vec = native_module_->wire_bytes(); - return {bytes_vec.start(), bytes_vec.size()}; -} - -WasmModuleObject::TransferrableModule -WasmModuleObject::GetTransferrableModule() { - if (i::FLAG_wasm_shared_code) { - i::Handle<i::WasmModuleObject> obj = - i::Handle<i::WasmModuleObject>::cast(Utils::OpenHandle(this)); - return TransferrableModule(obj->shared_native_module()); - } else { - CompiledWasmModule compiled_module = GetCompiledModule(); - OwnedBuffer serialized_module = compiled_module.Serialize(); - MemorySpan<const uint8_t> wire_bytes_ref = - compiled_module.GetWireBytesRef(); - size_t wire_size = wire_bytes_ref.size(); - std::unique_ptr<uint8_t[]> wire_bytes_copy(new uint8_t[wire_size]); - memcpy(wire_bytes_copy.get(), wire_bytes_ref.data(), wire_size); - return TransferrableModule(std::move(serialized_module), - {std::move(wire_bytes_copy), wire_size}); - } -} - -CompiledWasmModule WasmModuleObject::GetCompiledModule() { - i::Handle<i::WasmModuleObject> obj = - i::Handle<i::WasmModuleObject>::cast(Utils::OpenHandle(this)); - return Utils::Convert(obj->shared_native_module()); -} - -MaybeLocal<WasmModuleObject> WasmModuleObject::FromTransferrableModule( - Isolate* isolate, - const WasmModuleObject::TransferrableModule& transferrable_module) { - if (i::FLAG_wasm_shared_code) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::Handle<i::WasmModuleObject> module_object = - i_isolate->wasm_engine()->ImportNativeModule( - i_isolate, transferrable_module.shared_module_); - return Local<WasmModuleObject>::Cast( - Utils::ToLocal(i::Handle<i::JSObject>::cast(module_object))); - } else { - return Deserialize(isolate, AsReference(transferrable_module.serialized_), - AsReference(transferrable_module.wire_bytes_)); - } -} - -MaybeLocal<WasmModuleObject> WasmModuleObject::Deserialize( - Isolate* isolate, MemorySpan<const uint8_t> serialized_module, - MemorySpan<const uint8_t> wire_bytes) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::MaybeHandle<i::WasmModuleObject> maybe_module_object = - i::wasm::DeserializeNativeModule( - i_isolate, {serialized_module.data(), serialized_module.size()}, - {wire_bytes.data(), wire_bytes.size()}); - i::Handle<i::WasmModuleObject> module_object; - if (!maybe_module_object.ToHandle(&module_object)) { - return MaybeLocal<WasmModuleObject>(); - } - return Local<WasmModuleObject>::Cast( - Utils::ToLocal(i::Handle<i::JSObject>::cast(module_object))); -} - -MaybeLocal<WasmModuleObject> WasmModuleObject::DeserializeOrCompile( - Isolate* isolate, MemorySpan<const uint8_t> serialized_module, - MemorySpan<const uint8_t> wire_bytes) { - MaybeLocal<WasmModuleObject> ret = - Deserialize(isolate, serialized_module, wire_bytes); - if (!ret.IsEmpty()) { - return ret; - } - return Compile(isolate, wire_bytes.data(), wire_bytes.size()); -} - -MaybeLocal<WasmModuleObject> WasmModuleObject::Compile(Isolate* isolate, - const uint8_t* start, - size_t length) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - if (!i::wasm::IsWasmCodegenAllowed(i_isolate, i_isolate->native_context())) { - return MaybeLocal<WasmModuleObject>(); - } - i::MaybeHandle<i::JSObject> maybe_compiled; - { - i::wasm::ErrorThrower thrower(i_isolate, "WasmModuleObject::Compile()"); - auto enabled_features = i::wasm::WasmFeaturesFromIsolate(i_isolate); - maybe_compiled = i_isolate->wasm_engine()->SyncCompile( - i_isolate, enabled_features, &thrower, - i::wasm::ModuleWireBytes(start, start + length)); - } - CHECK_EQ(maybe_compiled.is_null(), i_isolate->has_pending_exception()); - if (maybe_compiled.is_null()) { - i_isolate->OptionalRescheduleException(false); - return MaybeLocal<WasmModuleObject>(); - } - return Local<WasmModuleObject>::Cast( - Utils::ToLocal(maybe_compiled.ToHandleChecked())); -} - -// Resolves the result of streaming compilation. -// TODO(ahaas): Refactor the streaming compilation API so that this class can -// move to wasm-js.cc. -class AsyncCompilationResolver : public i::wasm::CompilationResultResolver { - public: - AsyncCompilationResolver(Isolate* isolate, Local<Promise> promise) - : promise_( - reinterpret_cast<i::Isolate*>(isolate)->global_handles()->Create( - *Utils::OpenHandle(*promise))) {} - - ~AsyncCompilationResolver() override { - i::GlobalHandles::Destroy(promise_.location()); - } - - void OnCompilationSucceeded(i::Handle<i::WasmModuleObject> result) override { - i::MaybeHandle<i::Object> promise_result = - i::JSPromise::Resolve(promise_, result); - CHECK_EQ(promise_result.is_null(), - promise_->GetIsolate()->has_pending_exception()); - } - - void OnCompilationFailed(i::Handle<i::Object> error_reason) override { - i::MaybeHandle<i::Object> promise_result = - i::JSPromise::Reject(promise_, error_reason); - CHECK_EQ(promise_result.is_null(), - promise_->GetIsolate()->has_pending_exception()); - } - - private: - i::Handle<i::JSPromise> promise_; -}; - -WasmModuleObjectBuilderStreaming::WasmModuleObjectBuilderStreaming( - Isolate* isolate) { - USE(isolate_); -} - -Local<Promise> WasmModuleObjectBuilderStreaming::GetPromise() { return {}; } - -void WasmModuleObjectBuilderStreaming::OnBytesReceived(const uint8_t* bytes, - size_t size) { -} - -void WasmModuleObjectBuilderStreaming::Finish() { -} - -void WasmModuleObjectBuilderStreaming::Abort(MaybeLocal<Value> exception) { -} - -// static -v8::ArrayBuffer::Allocator* v8::ArrayBuffer::Allocator::NewDefaultAllocator() { - return new ArrayBufferAllocator(); -} - -bool v8::ArrayBuffer::IsExternal() const { - return Utils::OpenHandle(this)->is_external(); -} - -bool v8::ArrayBuffer::IsDetachable() const { - return Utils::OpenHandle(this)->is_detachable(); -} - -v8::ArrayBuffer::Contents v8::ArrayBuffer::Externalize() { - i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - Utils::ApiCheck(!self->is_external(), "v8_ArrayBuffer_Externalize", - "ArrayBuffer already externalized"); - self->set_is_external(true); - - const v8::ArrayBuffer::Contents contents = GetContents(); - isolate->heap()->UnregisterArrayBuffer(*self); - - // A regular copy is good enough. No move semantics needed. - return contents; -} - -v8::ArrayBuffer::Contents::Contents(void* data, size_t byte_length, - void* allocation_base, - size_t allocation_length, - Allocator::AllocationMode allocation_mode, - DeleterCallback deleter, void* deleter_data) - : data_(data), - byte_length_(byte_length), - allocation_base_(allocation_base), - allocation_length_(allocation_length), - allocation_mode_(allocation_mode), - deleter_(deleter), - deleter_data_(deleter_data) { - DCHECK_LE(allocation_base_, data_); - DCHECK_LE(byte_length_, allocation_length_); -} - -void WasmMemoryDeleter(void* buffer, size_t lenght, void* info) { - internal::wasm::WasmEngine* engine = - reinterpret_cast<internal::wasm::WasmEngine*>(info); - CHECK(engine->memory_tracker()->FreeMemoryIfIsWasmMemory(nullptr, buffer)); -} - -void ArrayBufferDeleter(void* buffer, size_t length, void* info) { - v8::ArrayBuffer::Allocator* allocator = - reinterpret_cast<v8::ArrayBuffer::Allocator*>(info); - allocator->Free(buffer, length); -} - -v8::ArrayBuffer::Contents v8::ArrayBuffer::GetContents() { - i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this); - Contents contents( - self->backing_store(), self->byte_length(), self->allocation_base(), - self->allocation_length(), - self->is_wasm_memory() ? Allocator::AllocationMode::kReservation - : Allocator::AllocationMode::kNormal, - self->is_wasm_memory() ? WasmMemoryDeleter : ArrayBufferDeleter, - self->is_wasm_memory() - ? static_cast<void*>(self->GetIsolate()->wasm_engine()) - : static_cast<void*>(self->GetIsolate()->array_buffer_allocator())); - return contents; -} - -void v8::ArrayBuffer::Detach() { - i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this); - i::Isolate* isolate = obj->GetIsolate(); - Utils::ApiCheck(obj->is_external(), "v8::ArrayBuffer::Detach", - "Only externalized ArrayBuffers can be detached"); - Utils::ApiCheck(obj->is_detachable(), "v8::ArrayBuffer::Detach", - "Only detachable ArrayBuffers can be detached"); - LOG_API(isolate, ArrayBuffer, Detach); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - obj->Detach(); -} - -size_t v8::ArrayBuffer::ByteLength() const { - i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this); - return obj->byte_length(); -} - - -Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, size_t byte_length) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, ArrayBuffer, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSArrayBuffer> obj = - i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared); - // TODO(jbroman): It may be useful in the future to provide a MaybeLocal - // version that throws an exception or otherwise does not crash. - if (!i::JSArrayBuffer::SetupAllocatingData(obj, i_isolate, byte_length)) { - i::FatalProcessOutOfMemory(i_isolate, "v8::ArrayBuffer::New"); - } - return Utils::ToLocal(obj); -} - - -Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, void* data, - size_t byte_length, - ArrayBufferCreationMode mode) { - // Embedders must guarantee that the external backing store is valid. - CHECK(byte_length == 0 || data != nullptr); - CHECK_LE(byte_length, i::JSArrayBuffer::kMaxByteLength); - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, ArrayBuffer, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSArrayBuffer> obj = - i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared); - i::JSArrayBuffer::Setup(obj, i_isolate, - mode == ArrayBufferCreationMode::kExternalized, data, - byte_length); - return Utils::ToLocal(obj); -} - - -Local<ArrayBuffer> v8::ArrayBufferView::Buffer() { - i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this); - i::Handle<i::JSArrayBuffer> buffer; - if (obj->IsJSDataView()) { - i::Handle<i::JSDataView> data_view(i::JSDataView::cast(*obj), - obj->GetIsolate()); - DCHECK(data_view->buffer()->IsJSArrayBuffer()); - buffer = i::handle(i::JSArrayBuffer::cast(data_view->buffer()), - data_view->GetIsolate()); - } else { - DCHECK(obj->IsJSTypedArray()); - buffer = i::JSTypedArray::cast(*obj)->GetBuffer(); - } - return Utils::ToLocal(buffer); -} - - -size_t v8::ArrayBufferView::CopyContents(void* dest, size_t byte_length) { - i::Handle<i::JSArrayBufferView> self = Utils::OpenHandle(this); - size_t byte_offset = self->byte_offset(); - size_t bytes_to_copy = i::Min(byte_length, self->byte_length()); - if (bytes_to_copy) { - i::DisallowHeapAllocation no_gc; - i::Isolate* isolate = self->GetIsolate(); - i::Handle<i::JSArrayBuffer> buffer(i::JSArrayBuffer::cast(self->buffer()), - isolate); - const char* source = reinterpret_cast<char*>(buffer->backing_store()); - if (source == nullptr) { - DCHECK(self->IsJSTypedArray()); - i::Handle<i::JSTypedArray> typed_array(i::JSTypedArray::cast(*self), - isolate); - i::Handle<i::FixedTypedArrayBase> fixed_array( - i::FixedTypedArrayBase::cast(typed_array->elements()), isolate); - source = reinterpret_cast<char*>(fixed_array->DataPtr()); - } - memcpy(dest, source + byte_offset, bytes_to_copy); - } - return bytes_to_copy; -} - - -bool v8::ArrayBufferView::HasBuffer() const { - i::Handle<i::JSArrayBufferView> self = Utils::OpenHandle(this); - i::Handle<i::JSArrayBuffer> buffer(i::JSArrayBuffer::cast(self->buffer()), - self->GetIsolate()); - return buffer->backing_store() != nullptr; -} - - -size_t v8::ArrayBufferView::ByteOffset() { - i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this); - return obj->WasDetached() ? 0 : obj->byte_offset(); -} - - -size_t v8::ArrayBufferView::ByteLength() { - i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this); - return obj->WasDetached() ? 0 : obj->byte_length(); -} - - -size_t v8::TypedArray::Length() { - i::Handle<i::JSTypedArray> obj = Utils::OpenHandle(this); - return obj->WasDetached() ? 0 : obj->length_value(); -} - -static_assert(v8::TypedArray::kMaxLength == i::Smi::kMaxValue, - "v8::TypedArray::kMaxLength must match i::Smi::kMaxValue"); - -#define TYPED_ARRAY_NEW(Type, type, TYPE, ctype) \ - Local<Type##Array> Type##Array::New(Local<ArrayBuffer> array_buffer, \ - size_t byte_offset, size_t length) { \ - i::Isolate* isolate = Utils::OpenHandle(*array_buffer)->GetIsolate(); \ - LOG_API(isolate, Type##Array, New); \ - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); \ - if (!Utils::ApiCheck(length <= kMaxLength, \ - "v8::" #Type \ - "Array::New(Local<ArrayBuffer>, size_t, size_t)", \ - "length exceeds max allowed value")) { \ - return Local<Type##Array>(); \ - } \ - i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*array_buffer); \ - i::Handle<i::JSTypedArray> obj = isolate->factory()->NewJSTypedArray( \ - i::kExternal##Type##Array, buffer, byte_offset, length); \ - return Utils::ToLocal##Type##Array(obj); \ - } \ - Local<Type##Array> Type##Array::New( \ - Local<SharedArrayBuffer> shared_array_buffer, size_t byte_offset, \ - size_t length) { \ - CHECK(i::FLAG_harmony_sharedarraybuffer); \ - i::Isolate* isolate = \ - Utils::OpenHandle(*shared_array_buffer)->GetIsolate(); \ - LOG_API(isolate, Type##Array, New); \ - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); \ - if (!Utils::ApiCheck( \ - length <= kMaxLength, \ - "v8::" #Type \ - "Array::New(Local<SharedArrayBuffer>, size_t, size_t)", \ - "length exceeds max allowed value")) { \ - return Local<Type##Array>(); \ - } \ - i::Handle<i::JSArrayBuffer> buffer = \ - Utils::OpenHandle(*shared_array_buffer); \ - i::Handle<i::JSTypedArray> obj = isolate->factory()->NewJSTypedArray( \ - i::kExternal##Type##Array, buffer, byte_offset, length); \ - return Utils::ToLocal##Type##Array(obj); \ - } - -TYPED_ARRAYS(TYPED_ARRAY_NEW) -#undef TYPED_ARRAY_NEW - -Local<DataView> DataView::New(Local<ArrayBuffer> array_buffer, - size_t byte_offset, size_t byte_length) { - i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*array_buffer); - i::Isolate* isolate = buffer->GetIsolate(); - LOG_API(isolate, DataView, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::JSDataView> obj = - isolate->factory()->NewJSDataView(buffer, byte_offset, byte_length); - return Utils::ToLocal(obj); -} - - -Local<DataView> DataView::New(Local<SharedArrayBuffer> shared_array_buffer, - size_t byte_offset, size_t byte_length) { - CHECK(i::FLAG_harmony_sharedarraybuffer); - i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*shared_array_buffer); - i::Isolate* isolate = buffer->GetIsolate(); - LOG_API(isolate, DataView, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::JSDataView> obj = - isolate->factory()->NewJSDataView(buffer, byte_offset, byte_length); - return Utils::ToLocal(obj); -} - -namespace { -i::Handle<i::JSArrayBuffer> SetupSharedArrayBuffer( - Isolate* isolate, void* data, size_t byte_length, - ArrayBufferCreationMode mode) { - CHECK(i::FLAG_harmony_sharedarraybuffer); - // Embedders must guarantee that the external backing store is valid. - CHECK(byte_length == 0 || data != nullptr); - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, SharedArrayBuffer, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSArrayBuffer> obj = - i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared); - bool is_wasm_memory = - i_isolate->wasm_engine()->memory_tracker()->IsWasmMemory(data); - i::JSArrayBuffer::Setup(obj, i_isolate, - mode == ArrayBufferCreationMode::kExternalized, data, - byte_length, i::SharedFlag::kShared, is_wasm_memory); - return obj; -} - -} // namespace - -bool v8::SharedArrayBuffer::IsExternal() const { - return Utils::OpenHandle(this)->is_external(); -} - -v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::Externalize() { - i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this); - i::Isolate* isolate = self->GetIsolate(); - Utils::ApiCheck(!self->is_external(), "v8_SharedArrayBuffer_Externalize", - "SharedArrayBuffer already externalized"); - self->set_is_external(true); - - const v8::SharedArrayBuffer::Contents contents = GetContents(); - isolate->heap()->UnregisterArrayBuffer(*self); - - // A regular copy is good enough. No move semantics needed. - return contents; -} - -v8::SharedArrayBuffer::Contents::Contents( - void* data, size_t byte_length, void* allocation_base, - size_t allocation_length, Allocator::AllocationMode allocation_mode, - DeleterCallback deleter, void* deleter_data) - : data_(data), - byte_length_(byte_length), - allocation_base_(allocation_base), - allocation_length_(allocation_length), - allocation_mode_(allocation_mode), - deleter_(deleter), - deleter_data_(deleter_data) { - DCHECK_LE(allocation_base_, data_); - DCHECK_LE(byte_length_, allocation_length_); -} - -v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::GetContents() { - i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this); - Contents contents( - self->backing_store(), self->byte_length(), self->allocation_base(), - self->allocation_length(), - self->is_wasm_memory() - ? ArrayBuffer::Allocator::AllocationMode::kReservation - : ArrayBuffer::Allocator::AllocationMode::kNormal, - self->is_wasm_memory() - ? reinterpret_cast<Contents::DeleterCallback>(WasmMemoryDeleter) - : reinterpret_cast<Contents::DeleterCallback>(ArrayBufferDeleter), - self->is_wasm_memory() - ? static_cast<void*>(self->GetIsolate()->wasm_engine()) - : static_cast<void*>(self->GetIsolate()->array_buffer_allocator())); - return contents; -} - -size_t v8::SharedArrayBuffer::ByteLength() const { - i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this); - return obj->byte_length(); -} - -Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate, - size_t byte_length) { - CHECK(i::FLAG_harmony_sharedarraybuffer); - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, SharedArrayBuffer, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSArrayBuffer> obj = - i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared); - // TODO(jbroman): It may be useful in the future to provide a MaybeLocal - // version that throws an exception or otherwise does not crash. - if (!i::JSArrayBuffer::SetupAllocatingData(obj, i_isolate, byte_length, true, - i::SharedFlag::kShared)) { - i::FatalProcessOutOfMemory(i_isolate, "v8::SharedArrayBuffer::New"); - } - return Utils::ToLocalShared(obj); -} - - -Local<SharedArrayBuffer> v8::SharedArrayBuffer::New( - Isolate* isolate, void* data, size_t byte_length, - ArrayBufferCreationMode mode) { - i::Handle<i::JSArrayBuffer> buffer = - SetupSharedArrayBuffer(isolate, data, byte_length, mode); - return Utils::ToLocalShared(buffer); -} - -Local<SharedArrayBuffer> v8::SharedArrayBuffer::New( - Isolate* isolate, const SharedArrayBuffer::Contents& contents, - ArrayBufferCreationMode mode) { - i::Handle<i::JSArrayBuffer> buffer = SetupSharedArrayBuffer( - isolate, contents.Data(), contents.ByteLength(), mode); - return Utils::ToLocalShared(buffer); -} - -Local<Symbol> v8::Symbol::New(Isolate* isolate, Local<String> name) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, Symbol, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Symbol> result = i_isolate->factory()->NewSymbol(); - if (!name.IsEmpty()) result->set_name(*Utils::OpenHandle(*name)); - return Utils::ToLocal(result); -} - - -Local<Symbol> v8::Symbol::For(Isolate* isolate, Local<String> name) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::Handle<i::String> i_name = Utils::OpenHandle(*name); - return Utils::ToLocal( - i_isolate->SymbolFor(i::RootIndex::kPublicSymbolTable, i_name, false)); -} - - -Local<Symbol> v8::Symbol::ForApi(Isolate* isolate, Local<String> name) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::Handle<i::String> i_name = Utils::OpenHandle(*name); - return Utils::ToLocal( - i_isolate->SymbolFor(i::RootIndex::kApiSymbolTable, i_name, false)); -} - -#define WELL_KNOWN_SYMBOLS(V) \ - V(AsyncIterator, async_iterator) \ - V(HasInstance, has_instance) \ - V(IsConcatSpreadable, is_concat_spreadable) \ - V(Iterator, iterator) \ - V(Match, match) \ - V(Replace, replace) \ - V(Search, search) \ - V(Split, split) \ - V(ToPrimitive, to_primitive) \ - V(ToStringTag, to_string_tag) \ - V(Unscopables, unscopables) - -#define SYMBOL_GETTER(Name, name) \ - Local<Symbol> v8::Symbol::Get##Name(Isolate* isolate) { \ - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); \ - return Utils::ToLocal(i_isolate->factory()->name##_symbol()); \ - } - -WELL_KNOWN_SYMBOLS(SYMBOL_GETTER) - -#undef SYMBOL_GETTER -#undef WELL_KNOWN_SYMBOLS - -Local<Private> v8::Private::New(Isolate* isolate, Local<String> name) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, Private, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::Symbol> symbol = i_isolate->factory()->NewPrivateSymbol(); - if (!name.IsEmpty()) symbol->set_name(*Utils::OpenHandle(*name)); - Local<Symbol> result = Utils::ToLocal(symbol); - return v8::Local<Private>(reinterpret_cast<Private*>(*result)); -} - - -Local<Private> v8::Private::ForApi(Isolate* isolate, Local<String> name) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::Handle<i::String> i_name = Utils::OpenHandle(*name); - Local<Symbol> result = Utils::ToLocal( - i_isolate->SymbolFor(i::RootIndex::kApiPrivateSymbolTable, i_name, true)); - return v8::Local<Private>(reinterpret_cast<Private*>(*result)); -} - - -Local<Number> v8::Number::New(Isolate* isolate, double value) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - if (std::isnan(value)) { - // Introduce only canonical NaN value into the VM, to avoid signaling NaNs. - value = std::numeric_limits<double>::quiet_NaN(); - } - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); - i::Handle<i::Object> result = internal_isolate->factory()->NewNumber(value); - return Utils::NumberToLocal(result); -} - - -Local<Integer> v8::Integer::New(Isolate* isolate, int32_t value) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - if (i::Smi::IsValid(value)) { - return Utils::IntegerToLocal(i::Handle<i::Object>(i::Smi::FromInt(value), - internal_isolate)); - } - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); - i::Handle<i::Object> result = internal_isolate->factory()->NewNumber(value); - return Utils::IntegerToLocal(result); -} - - -Local<Integer> v8::Integer::NewFromUnsigned(Isolate* isolate, uint32_t value) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - bool fits_into_int32_t = (value & (1 << 31)) == 0; - if (fits_into_int32_t) { - return Integer::New(isolate, static_cast<int32_t>(value)); - } - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); - i::Handle<i::Object> result = internal_isolate->factory()->NewNumber(value); - return Utils::IntegerToLocal(result); -} - -Local<BigInt> v8::BigInt::New(Isolate* isolate, int64_t value) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); - i::Handle<i::BigInt> result = i::BigInt::FromInt64(internal_isolate, value); - return Utils::ToLocal(result); -} - -Local<BigInt> v8::BigInt::NewFromUnsigned(Isolate* isolate, uint64_t value) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); - i::Handle<i::BigInt> result = i::BigInt::FromUint64(internal_isolate, value); - return Utils::ToLocal(result); -} - -MaybeLocal<BigInt> v8::BigInt::NewFromWords(Local<Context> context, - int sign_bit, int word_count, - const uint64_t* words) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); - ENTER_V8_NO_SCRIPT(isolate, context, BigInt, NewFromWords, - MaybeLocal<BigInt>(), InternalEscapableScope); - i::MaybeHandle<i::BigInt> result = - i::BigInt::FromWords64(isolate, sign_bit, word_count, words); - has_pending_exception = result.is_null(); - RETURN_ON_FAILED_EXECUTION(BigInt); - RETURN_ESCAPED(Utils::ToLocal(result.ToHandleChecked())); -} - -uint64_t v8::BigInt::Uint64Value(bool* lossless) const { - i::Handle<i::BigInt> handle = Utils::OpenHandle(this); - return handle->AsUint64(lossless); -} - -int64_t v8::BigInt::Int64Value(bool* lossless) const { - i::Handle<i::BigInt> handle = Utils::OpenHandle(this); - return handle->AsInt64(lossless); -} - -int BigInt::WordCount() const { - i::Handle<i::BigInt> handle = Utils::OpenHandle(this); - return handle->Words64Count(); -} - -void BigInt::ToWordsArray(int* sign_bit, int* word_count, - uint64_t* words) const { - i::Handle<i::BigInt> handle = Utils::OpenHandle(this); - return handle->ToWordsArray64(sign_bit, word_count, words); -} - -void Isolate::ReportExternalAllocationLimitReached() { - i::Heap* heap = reinterpret_cast<i::Isolate*>(this)->heap(); - if (heap->gc_state() != i::Heap::NOT_IN_GC) return; - heap->ReportExternalMemoryPressure(); -} - -void Isolate::CheckMemoryPressure() { - i::Heap* heap = reinterpret_cast<i::Isolate*>(this)->heap(); - if (heap->gc_state() != i::Heap::NOT_IN_GC) return; - heap->CheckMemoryPressure(); -} - -HeapProfiler* Isolate::GetHeapProfiler() { - i::HeapProfiler* heap_profiler = - reinterpret_cast<i::Isolate*>(this)->heap_profiler(); - return reinterpret_cast<HeapProfiler*>(heap_profiler); -} - -void Isolate::SetIdle(bool is_idle) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetIdle(is_idle); -} - -ArrayBuffer::Allocator* Isolate::GetArrayBufferAllocator() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->array_buffer_allocator(); -} - -bool Isolate::InContext() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return !isolate->context().is_null(); -} - - -v8::Local<v8::Context> Isolate::GetCurrentContext() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Context context = isolate->context(); - if (context.is_null()) return Local<Context>(); - i::Context native_context = context->native_context(); - if (native_context.is_null()) return Local<Context>(); - return Utils::ToLocal(i::Handle<i::Context>(native_context, isolate)); -} - - -v8::Local<v8::Context> Isolate::GetEnteredContext() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Handle<i::Object> last = - isolate->handle_scope_implementer()->LastEnteredContext(); - if (last.is_null()) return Local<Context>(); - return Utils::ToLocal(i::Handle<i::Context>::cast(last)); -} - -v8::Local<v8::Context> Isolate::GetEnteredOrMicrotaskContext() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Handle<i::Object> last = - isolate->handle_scope_implementer()->LastEnteredOrMicrotaskContext(); - if (last.is_null()) return Local<Context>(); - DCHECK(last->IsNativeContext()); - return Utils::ToLocal(i::Handle<i::Context>::cast(last)); -} - -v8::Local<v8::Context> Isolate::GetIncumbentContext() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Handle<i::Context> context = isolate->GetIncumbentContext(); - return Utils::ToLocal(context); -} - -v8::Local<Value> Isolate::ThrowException(v8::Local<v8::Value> value) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - ENTER_V8_DO_NOT_USE(isolate); - // If we're passed an empty handle, we throw an undefined exception - // to deal more gracefully with out of memory situations. - if (value.IsEmpty()) { - isolate->ScheduleThrow(i::ReadOnlyRoots(isolate).undefined_value()); - } else { - isolate->ScheduleThrow(*Utils::OpenHandle(*value)); - } - return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); -} - -void Isolate::AddGCPrologueCallback(GCCallbackWithData callback, void* data, - GCType gc_type) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->AddGCPrologueCallback(callback, gc_type, data); -} - -void Isolate::RemoveGCPrologueCallback(GCCallbackWithData callback, - void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->RemoveGCPrologueCallback(callback, data); -} - -void Isolate::AddGCEpilogueCallback(GCCallbackWithData callback, void* data, - GCType gc_type) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->AddGCEpilogueCallback(callback, gc_type, data); -} - -void Isolate::RemoveGCEpilogueCallback(GCCallbackWithData callback, - void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->RemoveGCEpilogueCallback(callback, data); -} - -static void CallGCCallbackWithoutData(Isolate* isolate, GCType type, - GCCallbackFlags flags, void* data) { - reinterpret_cast<Isolate::GCCallback>(data)(isolate, type, flags); -} - -void Isolate::AddGCPrologueCallback(GCCallback callback, GCType gc_type) { - void* data = reinterpret_cast<void*>(callback); - AddGCPrologueCallback(CallGCCallbackWithoutData, data, gc_type); -} - -void Isolate::RemoveGCPrologueCallback(GCCallback callback) { - void* data = reinterpret_cast<void*>(callback); - RemoveGCPrologueCallback(CallGCCallbackWithoutData, data); -} - -void Isolate::AddGCEpilogueCallback(GCCallback callback, GCType gc_type) { - void* data = reinterpret_cast<void*>(callback); - AddGCEpilogueCallback(CallGCCallbackWithoutData, data, gc_type); -} - -void Isolate::RemoveGCEpilogueCallback(GCCallback callback) { - void* data = reinterpret_cast<void*>(callback); - RemoveGCEpilogueCallback(CallGCCallbackWithoutData, data); -} - -void Isolate::SetEmbedderHeapTracer(EmbedderHeapTracer* tracer) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->SetEmbedderHeapTracer(tracer); -} - -EmbedderHeapTracer* Isolate::GetEmbedderHeapTracer() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->heap()->GetEmbedderHeapTracer(); -} - -void Isolate::SetGetExternallyAllocatedMemoryInBytesCallback( - GetExternallyAllocatedMemoryInBytesCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->SetGetExternallyAllocatedMemoryInBytesCallback(callback); -} - -void Isolate::TerminateExecution() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->stack_guard()->RequestTerminateExecution(); -} - - -bool Isolate::IsExecutionTerminating() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return IsExecutionTerminatingCheck(isolate); -} - - -void Isolate::CancelTerminateExecution() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->stack_guard()->ClearTerminateExecution(); - isolate->CancelTerminateExecution(); -} - - -void Isolate::RequestInterrupt(InterruptCallback callback, void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->RequestInterrupt(callback, data); -} - - -void Isolate::RequestGarbageCollectionForTesting(GarbageCollectionType type) { - CHECK(i::FLAG_expose_gc); - if (type == kMinorGarbageCollection) { - reinterpret_cast<i::Isolate*>(this)->heap()->CollectGarbage( - i::NEW_SPACE, i::GarbageCollectionReason::kTesting, - kGCCallbackFlagForced); - } else { - DCHECK_EQ(kFullGarbageCollection, type); - reinterpret_cast<i::Isolate*>(this)->heap()->PreciseCollectAllGarbage( - i::Heap::kNoGCFlags, i::GarbageCollectionReason::kTesting, - kGCCallbackFlagForced); - } -} - - -Isolate* Isolate::GetCurrent() { - i::Isolate* isolate = i::Isolate::Current(); - return reinterpret_cast<Isolate*>(isolate); -} - -// static -Isolate* Isolate::Allocate() { - return reinterpret_cast<Isolate*>(i::Isolate::New()); -} - -// static -// This is separate so that tests can provide a different |isolate|. -void Isolate::Initialize(Isolate* isolate, - const v8::Isolate::CreateParams& params) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - CHECK_NOT_NULL(params.array_buffer_allocator); - i_isolate->set_array_buffer_allocator(params.array_buffer_allocator); - if (params.snapshot_blob != nullptr) { - i_isolate->set_snapshot_blob(params.snapshot_blob); - } else { - i_isolate->set_snapshot_blob(i::Snapshot::DefaultSnapshotBlob()); - } - auto code_event_handler = params.code_event_handler; -#ifdef ENABLE_GDB_JIT_INTERFACE - if (code_event_handler == nullptr && i::FLAG_gdbjit) { - code_event_handler = i::GDBJITInterface::EventHandler; - } -#endif // ENABLE_GDB_JIT_INTERFACE - if (code_event_handler) { - i_isolate->InitializeLoggingAndCounters(); - i_isolate->logger()->SetCodeEventHandler(kJitCodeEventDefault, - code_event_handler); - } - if (params.counter_lookup_callback) { - isolate->SetCounterFunction(params.counter_lookup_callback); - } - - if (params.create_histogram_callback) { - isolate->SetCreateHistogramFunction(params.create_histogram_callback); - } - - if (params.add_histogram_sample_callback) { - isolate->SetAddHistogramSampleFunction( - params.add_histogram_sample_callback); - } - - i_isolate->set_api_external_references(params.external_references); - i_isolate->set_allow_atomics_wait(params.allow_atomics_wait); - - SetResourceConstraints(i_isolate, params.constraints); - // TODO(jochen): Once we got rid of Isolate::Current(), we can remove this. - Isolate::Scope isolate_scope(isolate); - if (!i::Snapshot::Initialize(i_isolate)) { - // If snapshot data was provided and we failed to deserialize it must - // have been corrupted. - if (i_isolate->snapshot_blob() != nullptr) { - FATAL( - "Failed to deserialize the V8 snapshot blob. This can mean that the " - "snapshot blob file is corrupted or missing."); - } - base::ElapsedTimer timer; - if (i::FLAG_profile_deserialization) timer.Start(); - i_isolate->InitWithoutSnapshot(); - if (i::FLAG_profile_deserialization) { - double ms = timer.Elapsed().InMillisecondsF(); - i::PrintF("[Initializing isolate from scratch took %0.3f ms]\n", ms); - } - } - i_isolate->set_only_terminate_in_safe_scope( - params.only_terminate_in_safe_scope); -} - -Isolate* Isolate::New(const Isolate::CreateParams& params) { - Isolate* isolate = Allocate(); - Initialize(isolate, params); - return isolate; -} - -void Isolate::Dispose() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - if (!Utils::ApiCheck(!isolate->IsInUse(), - "v8::Isolate::Dispose()", - "Disposing the isolate that is entered by a thread.")) { - return; - } - i::Isolate::Delete(isolate); -} - -void Isolate::DumpAndResetStats() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->DumpAndResetStats(); -} - -void Isolate::DiscardThreadSpecificMetadata() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->DiscardPerThreadDataForThisThread(); -} - - -void Isolate::Enter() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->Enter(); -} - - -void Isolate::Exit() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->Exit(); -} - - -void Isolate::SetAbortOnUncaughtExceptionCallback( - AbortOnUncaughtExceptionCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetAbortOnUncaughtExceptionCallback(callback); -} - -void Isolate::SetHostImportModuleDynamicallyCallback( - HostImportModuleDynamicallyCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetHostImportModuleDynamicallyCallback(callback); -} - -void Isolate::SetHostInitializeImportMetaObjectCallback( - HostInitializeImportMetaObjectCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetHostInitializeImportMetaObjectCallback(callback); -} - -void Isolate::SetPrepareStackTraceCallback(PrepareStackTraceCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetPrepareStackTraceCallback(callback); -} - -Isolate::DisallowJavascriptExecutionScope::DisallowJavascriptExecutionScope( - Isolate* isolate, - Isolate::DisallowJavascriptExecutionScope::OnFailure on_failure) - : on_failure_(on_failure) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - switch (on_failure_) { - case CRASH_ON_FAILURE: - internal_ = reinterpret_cast<void*>( - new i::DisallowJavascriptExecution(i_isolate)); - break; - case THROW_ON_FAILURE: - DCHECK_EQ(THROW_ON_FAILURE, on_failure); - internal_ = - reinterpret_cast<void*>(new i::ThrowOnJavascriptExecution(i_isolate)); - break; - case DUMP_ON_FAILURE: - internal_ = - reinterpret_cast<void*>(new i::DumpOnJavascriptExecution(i_isolate)); - break; - default: - UNREACHABLE(); - break; - } -} - - -Isolate::DisallowJavascriptExecutionScope::~DisallowJavascriptExecutionScope() { - switch (on_failure_) { - case CRASH_ON_FAILURE: - delete reinterpret_cast<i::DisallowJavascriptExecution*>(internal_); - break; - case THROW_ON_FAILURE: - delete reinterpret_cast<i::ThrowOnJavascriptExecution*>(internal_); - break; - case DUMP_ON_FAILURE: - delete reinterpret_cast<i::DumpOnJavascriptExecution*>(internal_); - break; - default: - UNREACHABLE(); - break; - } -} - - -Isolate::AllowJavascriptExecutionScope::AllowJavascriptExecutionScope( - Isolate* isolate) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - internal_assert_ = reinterpret_cast<void*>( - new i::AllowJavascriptExecution(i_isolate)); - internal_throws_ = reinterpret_cast<void*>( - new i::NoThrowOnJavascriptExecution(i_isolate)); - internal_dump_ = - reinterpret_cast<void*>(new i::NoDumpOnJavascriptExecution(i_isolate)); -} - - -Isolate::AllowJavascriptExecutionScope::~AllowJavascriptExecutionScope() { - delete reinterpret_cast<i::AllowJavascriptExecution*>(internal_assert_); - delete reinterpret_cast<i::NoThrowOnJavascriptExecution*>(internal_throws_); - delete reinterpret_cast<i::NoDumpOnJavascriptExecution*>(internal_dump_); -} - -Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope( - Isolate* isolate) - : isolate_(reinterpret_cast<i::Isolate*>(isolate)), - microtask_queue_(isolate_->default_microtask_queue()) { - isolate_->handle_scope_implementer()->IncrementCallDepth(); - microtask_queue_->IncrementMicrotasksSuppressions(); -} - -Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope() { - microtask_queue_->DecrementMicrotasksSuppressions(); - isolate_->handle_scope_implementer()->DecrementCallDepth(); -} - -Isolate::SafeForTerminationScope::SafeForTerminationScope(v8::Isolate* isolate) - : isolate_(reinterpret_cast<i::Isolate*>(isolate)), - prev_value_(isolate_->next_v8_call_is_safe_for_termination()) { - isolate_->set_next_v8_call_is_safe_for_termination(true); -} - -Isolate::SafeForTerminationScope::~SafeForTerminationScope() { - isolate_->set_next_v8_call_is_safe_for_termination(prev_value_); -} - -i::Address* Isolate::GetDataFromSnapshotOnce(size_t index) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); - i::FixedArray list = i_isolate->heap()->serialized_objects(); - return GetSerializedDataFromFixedArray(i_isolate, list, index); -} - -void Isolate::GetHeapStatistics(HeapStatistics* heap_statistics) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Heap* heap = isolate->heap(); - heap_statistics->total_heap_size_ = heap->CommittedMemory(); - heap_statistics->total_heap_size_executable_ = - heap->CommittedMemoryExecutable(); - heap_statistics->total_physical_size_ = heap->CommittedPhysicalMemory(); - heap_statistics->total_available_size_ = heap->Available(); - heap_statistics->used_heap_size_ = heap->SizeOfObjects(); - heap_statistics->heap_size_limit_ = heap->MaxReserved(); - // TODO(7424): There is no public API for the {WasmEngine} yet. Once such an - // API becomes available we should report the malloced memory separately. For - // now we just add the values, thereby over-approximating the peak slightly. - heap_statistics->malloced_memory_ = - isolate->allocator()->GetCurrentMemoryUsage() + - isolate->wasm_engine()->allocator()->GetCurrentMemoryUsage(); - heap_statistics->external_memory_ = isolate->heap()->backing_store_bytes(); - heap_statistics->peak_malloced_memory_ = - isolate->allocator()->GetMaxMemoryUsage() + - isolate->wasm_engine()->allocator()->GetMaxMemoryUsage(); - heap_statistics->number_of_native_contexts_ = heap->NumberOfNativeContexts(); - heap_statistics->number_of_detached_contexts_ = - heap->NumberOfDetachedContexts(); - heap_statistics->does_zap_garbage_ = heap->ShouldZapGarbage(); -} - - -size_t Isolate::NumberOfHeapSpaces() { - return i::LAST_SPACE - i::FIRST_SPACE + 1; -} - - -bool Isolate::GetHeapSpaceStatistics(HeapSpaceStatistics* space_statistics, - size_t index) { - if (!space_statistics) return false; - if (!i::Heap::IsValidAllocationSpace(static_cast<i::AllocationSpace>(index))) - return false; - - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Heap* heap = isolate->heap(); - i::Space* space = heap->space(static_cast<int>(index)); - - space_statistics->space_name_ = - i::Heap::GetSpaceName(static_cast<i::AllocationSpace>(index)); - space_statistics->space_size_ = space->CommittedMemory(); - space_statistics->space_used_size_ = space->SizeOfObjects(); - space_statistics->space_available_size_ = space->Available(); - space_statistics->physical_space_size_ = space->CommittedPhysicalMemory(); - return true; -} - - -size_t Isolate::NumberOfTrackedHeapObjectTypes() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Heap* heap = isolate->heap(); - return heap->NumberOfTrackedHeapObjectTypes(); -} - - -bool Isolate::GetHeapObjectStatisticsAtLastGC( - HeapObjectStatistics* object_statistics, size_t type_index) { - if (!object_statistics) return false; - if (V8_LIKELY(!i::TracingFlags::is_gc_stats_enabled())) return false; - - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Heap* heap = isolate->heap(); - if (type_index >= heap->NumberOfTrackedHeapObjectTypes()) return false; - - const char* object_type; - const char* object_sub_type; - size_t object_count = heap->ObjectCountAtLastGC(type_index); - size_t object_size = heap->ObjectSizeAtLastGC(type_index); - if (!heap->GetObjectTypeName(type_index, &object_type, &object_sub_type)) { - // There should be no objects counted when the type is unknown. - DCHECK_EQ(object_count, 0U); - DCHECK_EQ(object_size, 0U); - return false; - } - - object_statistics->object_type_ = object_type; - object_statistics->object_sub_type_ = object_sub_type; - object_statistics->object_count_ = object_count; - object_statistics->object_size_ = object_size; - return true; -} - -bool Isolate::GetHeapCodeAndMetadataStatistics( - HeapCodeStatistics* code_statistics) { - if (!code_statistics) return false; - - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->CollectCodeStatistics(); - - code_statistics->code_and_metadata_size_ = isolate->code_and_metadata_size(); - code_statistics->bytecode_and_metadata_size_ = - isolate->bytecode_and_metadata_size(); - code_statistics->external_script_source_size_ = - isolate->external_script_source_size(); - return true; -} - -void Isolate::GetStackSample(const RegisterState& state, void** frames, - size_t frames_limit, SampleInfo* sample_info) { - RegisterState regs = state; - if (TickSample::GetStackSample(this, ®s, TickSample::kSkipCEntryFrame, - frames, frames_limit, sample_info)) { - return; - } - sample_info->frames_count = 0; - sample_info->vm_state = OTHER; - sample_info->external_callback_entry = nullptr; -} - -size_t Isolate::NumberOfPhantomHandleResetsSinceLastCall() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->global_handles()->GetAndResetGlobalHandleResetCount(); -} - -void Isolate::SetEventLogger(LogEventCallback that) { - // Do not overwrite the event logger if we want to log explicitly. - if (i::FLAG_log_internal_timer_events) return; - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->set_event_logger(that); -} - - -void Isolate::AddBeforeCallEnteredCallback(BeforeCallEnteredCallback callback) { - if (callback == nullptr) return; - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->AddBeforeCallEnteredCallback(callback); -} - - -void Isolate::RemoveBeforeCallEnteredCallback( - BeforeCallEnteredCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->RemoveBeforeCallEnteredCallback(callback); -} - - -void Isolate::AddCallCompletedCallback(CallCompletedCallback callback) { - if (callback == nullptr) return; - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->AddCallCompletedCallback(callback); -} - - -void Isolate::RemoveCallCompletedCallback(CallCompletedCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->RemoveCallCompletedCallback(callback); -} - -void Isolate::AtomicsWaitWakeHandle::Wake() { - reinterpret_cast<i::AtomicsWaitWakeHandle*>(this)->Wake(); -} - -void Isolate::SetAtomicsWaitCallback(AtomicsWaitCallback callback, void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetAtomicsWaitCallback(callback, data); -} - -void Isolate::SetPromiseHook(PromiseHook hook) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetPromiseHook(hook); -} - -void Isolate::SetPromiseRejectCallback(PromiseRejectCallback callback) { - if (callback == nullptr) return; - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetPromiseRejectCallback(callback); -} - - -void Isolate::RunMicrotasks() { - DCHECK_NE(MicrotasksPolicy::kScoped, GetMicrotasksPolicy()); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->default_microtask_queue()->RunMicrotasks(isolate); -} - -void Isolate::EnqueueMicrotask(Local<Function> v8_function) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::Handle<i::JSReceiver> function = Utils::OpenHandle(*v8_function); - i::Handle<i::NativeContext> handler_context; - if (!i::JSReceiver::GetContextForMicrotask(function).ToHandle( - &handler_context)) - handler_context = isolate->native_context(); - MicrotaskQueue* microtask_queue = handler_context->microtask_queue(); - if (microtask_queue) microtask_queue->EnqueueMicrotask(this, v8_function); -} - -void Isolate::EnqueueMicrotask(MicrotaskCallback callback, void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::HandleScope scope(isolate); - i::Handle<i::CallbackTask> microtask = isolate->factory()->NewCallbackTask( - isolate->factory()->NewForeign(reinterpret_cast<i::Address>(callback)), - isolate->factory()->NewForeign(reinterpret_cast<i::Address>(data))); - isolate->default_microtask_queue()->EnqueueMicrotask(*microtask); -} - - -void Isolate::SetMicrotasksPolicy(MicrotasksPolicy policy) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->default_microtask_queue()->set_microtasks_policy(policy); -} - - -MicrotasksPolicy Isolate::GetMicrotasksPolicy() const { - i::Isolate* isolate = - reinterpret_cast<i::Isolate*>(const_cast<Isolate*>(this)); - return isolate->default_microtask_queue()->microtasks_policy(); -} - -namespace { - -void MicrotasksCompletedCallbackAdapter(v8::Isolate* isolate, void* data) { - auto callback = reinterpret_cast<void (*)(v8::Isolate*)>(data); - callback(isolate); -} - -} // namespace - -void Isolate::AddMicrotasksCompletedCallback( - MicrotasksCompletedCallback callback) { - DCHECK(callback); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->default_microtask_queue()->AddMicrotasksCompletedCallback( - &MicrotasksCompletedCallbackAdapter, reinterpret_cast<void*>(callback)); -} - -void Isolate::AddMicrotasksCompletedCallback( - MicrotasksCompletedCallbackWithData callback, void* data) { - DCHECK(callback); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->default_microtask_queue()->AddMicrotasksCompletedCallback(callback, - data); -} - -void Isolate::RemoveMicrotasksCompletedCallback( - MicrotasksCompletedCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->default_microtask_queue()->RemoveMicrotasksCompletedCallback( - &MicrotasksCompletedCallbackAdapter, reinterpret_cast<void*>(callback)); -} - -void Isolate::RemoveMicrotasksCompletedCallback( - MicrotasksCompletedCallbackWithData callback, void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->default_microtask_queue()->RemoveMicrotasksCompletedCallback( - callback, data); -} - -void Isolate::SetUseCounterCallback(UseCounterCallback callback) { - reinterpret_cast<i::Isolate*>(this)->SetUseCounterCallback(callback); -} - - -void Isolate::SetCounterFunction(CounterLookupCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->counters()->ResetCounterFunction(callback); -} - - -void Isolate::SetCreateHistogramFunction(CreateHistogramCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->counters()->ResetCreateHistogramFunction(callback); -} - - -void Isolate::SetAddHistogramSampleFunction( - AddHistogramSampleCallback callback) { - reinterpret_cast<i::Isolate*>(this) - ->counters() - ->SetAddHistogramSampleFunction(callback); -} - - -bool Isolate::IdleNotificationDeadline(double deadline_in_seconds) { - // Returning true tells the caller that it need not - // continue to call IdleNotification. - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - if (!i::FLAG_use_idle_notification) return true; - return isolate->heap()->IdleNotification(deadline_in_seconds); -} - -void Isolate::LowMemoryNotification() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - { - i::HistogramTimerScope idle_notification_scope( - isolate->counters()->gc_low_memory_notification()); - TRACE_EVENT0("v8", "V8.GCLowMemoryNotification"); - isolate->heap()->CollectAllAvailableGarbage( - i::GarbageCollectionReason::kLowMemoryNotification); - } - { - i::HeapIterator iterator(isolate->heap()); - for (i::HeapObject obj = iterator.next(); !obj.is_null(); - obj = iterator.next()) { - if (obj->IsAbstractCode()) { - i::AbstractCode::cast(obj)->DropStackFrameCache(); - } - } - } -} - - -int Isolate::ContextDisposedNotification(bool dependant_context) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - if (!dependant_context) { - // We left the current context, we can abort all WebAssembly compilations on - // that isolate. - isolate->wasm_engine()->DeleteCompileJobsOnIsolate(isolate); - } - // TODO(ahaas): move other non-heap activity out of the heap call. - return isolate->heap()->NotifyContextDisposed(dependant_context); -} - - -void Isolate::IsolateInForegroundNotification() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->IsolateInForegroundNotification(); -} - - -void Isolate::IsolateInBackgroundNotification() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->IsolateInBackgroundNotification(); -} - -void Isolate::MemoryPressureNotification(MemoryPressureLevel level) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - bool on_isolate_thread = - v8::Locker::IsActive() - ? isolate->thread_manager()->IsLockedByCurrentThread() - : i::ThreadId::Current() == isolate->thread_id(); - isolate->heap()->MemoryPressureNotification(level, on_isolate_thread); -} - -void Isolate::EnableMemorySavingsMode() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->EnableMemorySavingsMode(); -} - -void Isolate::DisableMemorySavingsMode() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->DisableMemorySavingsMode(); -} - -void Isolate::SetRAILMode(RAILMode rail_mode) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->SetRAILMode(rail_mode); -} - -void Isolate::IncreaseHeapLimitForDebugging() { - // No-op. -} - -void Isolate::RestoreOriginalHeapLimit() { - // No-op. -} - -bool Isolate::IsHeapLimitIncreasedForDebugging() { return false; } - -void Isolate::SetJitCodeEventHandler(JitCodeEventOptions options, - JitCodeEventHandler event_handler) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - // Ensure that logging is initialized for our isolate. - isolate->InitializeLoggingAndCounters(); - isolate->logger()->SetCodeEventHandler(options, event_handler); -} - - -void Isolate::SetStackLimit(uintptr_t stack_limit) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - CHECK(stack_limit); - isolate->stack_guard()->SetStackLimit(stack_limit); -} - -void Isolate::GetCodeRange(void** start, size_t* length_in_bytes) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - const base::AddressRegion& code_range = - isolate->heap()->memory_allocator()->code_range(); - *start = reinterpret_cast<void*>(code_range.begin()); - *length_in_bytes = code_range.size(); -} - -UnwindState Isolate::GetUnwindState() { - UnwindState unwind_state; - void* code_range_start; - GetCodeRange(&code_range_start, &unwind_state.code_range.length_in_bytes); - unwind_state.code_range.start = code_range_start; - - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - unwind_state.embedded_code_range.start = - reinterpret_cast<const void*>(isolate->embedded_blob()); - unwind_state.embedded_code_range.length_in_bytes = - isolate->embedded_blob_size(); - - i::Code js_entry = isolate->heap()->builtin(i::Builtins::kJSEntry); - unwind_state.js_entry_stub.code.start = - reinterpret_cast<const void*>(js_entry->InstructionStart()); - unwind_state.js_entry_stub.code.length_in_bytes = js_entry->InstructionSize(); - - return unwind_state; -} - -#define CALLBACK_SETTER(ExternalName, Type, InternalName) \ - void Isolate::Set##ExternalName(Type callback) { \ - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); \ - isolate->set_##InternalName(callback); \ - } - -CALLBACK_SETTER(FatalErrorHandler, FatalErrorCallback, exception_behavior) -CALLBACK_SETTER(OOMErrorHandler, OOMErrorCallback, oom_behavior) -CALLBACK_SETTER(AllowCodeGenerationFromStringsCallback, - AllowCodeGenerationFromStringsCallback, allow_code_gen_callback) -CALLBACK_SETTER(AllowWasmCodeGenerationCallback, - AllowWasmCodeGenerationCallback, allow_wasm_code_gen_callback) - -CALLBACK_SETTER(WasmModuleCallback, ExtensionCallback, wasm_module_callback) -CALLBACK_SETTER(WasmInstanceCallback, ExtensionCallback, wasm_instance_callback) - -CALLBACK_SETTER(WasmStreamingCallback, WasmStreamingCallback, - wasm_streaming_callback) - -CALLBACK_SETTER(WasmThreadsEnabledCallback, WasmThreadsEnabledCallback, - wasm_threads_enabled_callback) - -void Isolate::AddNearHeapLimitCallback(v8::NearHeapLimitCallback callback, - void* data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->AddNearHeapLimitCallback(callback, data); -} - -void Isolate::RemoveNearHeapLimitCallback(v8::NearHeapLimitCallback callback, - size_t heap_limit) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->RemoveNearHeapLimitCallback(callback, heap_limit); -} - -void Isolate::AutomaticallyRestoreInitialHeapLimit(double threshold_percent) { - DCHECK_GT(threshold_percent, 0.0); - DCHECK_LT(threshold_percent, 1.0); - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->AutomaticallyRestoreInitialHeapLimit(threshold_percent); -} - -bool Isolate::IsDead() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->IsDead(); -} - -bool Isolate::AddMessageListener(MessageCallback that, Local<Value> data) { - return AddMessageListenerWithErrorLevel(that, kMessageError, data); -} - -bool Isolate::AddMessageListenerWithErrorLevel(MessageCallback that, - int message_levels, - Local<Value> data) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - i::Handle<i::TemplateList> list = isolate->factory()->message_listeners(); - i::Handle<i::FixedArray> listener = isolate->factory()->NewFixedArray(3); - i::Handle<i::Foreign> foreign = - isolate->factory()->NewForeign(FUNCTION_ADDR(that)); - listener->set(0, *foreign); - listener->set(1, data.IsEmpty() ? i::ReadOnlyRoots(isolate).undefined_value() - : *Utils::OpenHandle(*data)); - listener->set(2, i::Smi::FromInt(message_levels)); - list = i::TemplateList::Add(isolate, list, listener); - isolate->heap()->SetMessageListeners(*list); - return true; -} - - -void Isolate::RemoveMessageListeners(MessageCallback that) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope scope(isolate); - i::DisallowHeapAllocation no_gc; - i::TemplateList listeners = isolate->heap()->message_listeners(); - for (int i = 0; i < listeners->length(); i++) { - if (listeners->get(i)->IsUndefined(isolate)) continue; // skip deleted ones - i::FixedArray listener = i::FixedArray::cast(listeners->get(i)); - i::Foreign callback_obj = i::Foreign::cast(listener->get(0)); - if (callback_obj->foreign_address() == FUNCTION_ADDR(that)) { - listeners->set(i, i::ReadOnlyRoots(isolate).undefined_value()); - } - } -} - - -void Isolate::SetFailedAccessCheckCallbackFunction( - FailedAccessCheckCallback callback) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetFailedAccessCheckCallback(callback); -} - - -void Isolate::SetCaptureStackTraceForUncaughtExceptions( - bool capture, int frame_limit, StackTrace::StackTraceOptions options) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->SetCaptureStackTraceForUncaughtExceptions(capture, frame_limit, - options); -} - - -void Isolate::VisitExternalResources(ExternalResourceVisitor* visitor) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->heap()->VisitExternalResources(visitor); -} - - -bool Isolate::IsInUse() { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - return isolate->IsInUse(); -} - - -void Isolate::VisitHandlesWithClassIds(PersistentHandleVisitor* visitor) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::DisallowHeapAllocation no_allocation; - isolate->global_handles()->IterateAllRootsWithClassIds(visitor); -} - -void Isolate::VisitWeakHandles(PersistentHandleVisitor* visitor) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - i::DisallowHeapAllocation no_allocation; - isolate->global_handles()->IterateYoungWeakRootsWithClassIds(visitor); -} - -void Isolate::SetAllowAtomicsWait(bool allow) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); - isolate->set_allow_atomics_wait(allow); -} - -void v8::Isolate::DateTimeConfigurationChangeNotification( - TimeZoneDetection time_zone_detection) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); - LOG_API(i_isolate, Isolate, DateTimeConfigurationChangeNotification); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i_isolate->date_cache()->ResetDateCache( - static_cast<base::TimezoneCache::TimeZoneDetection>(time_zone_detection)); -#ifdef V8_INTL_SUPPORT - i_isolate->clear_cached_icu_object( - i::Isolate::ICUObjectCacheType::kDefaultSimpleDateFormat); - i_isolate->clear_cached_icu_object( - i::Isolate::ICUObjectCacheType::kDefaultSimpleDateFormatForTime); - i_isolate->clear_cached_icu_object( - i::Isolate::ICUObjectCacheType::kDefaultSimpleDateFormatForDate); -#endif // V8_INTL_SUPPORT -} - -void v8::Isolate::LocaleConfigurationChangeNotification() { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); - LOG_API(i_isolate, Isolate, LocaleConfigurationChangeNotification); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - -#ifdef V8_INTL_SUPPORT - i_isolate->ResetDefaultLocale(); -#endif // V8_INTL_SUPPORT -} - -// static -std::unique_ptr<MicrotaskQueue> MicrotaskQueue::New(Isolate* isolate, - MicrotasksPolicy policy) { - auto microtask_queue = - i::MicrotaskQueue::New(reinterpret_cast<i::Isolate*>(isolate)); - microtask_queue->set_microtasks_policy(policy); - std::unique_ptr<MicrotaskQueue> ret(std::move(microtask_queue)); - return ret; -} - -MicrotasksScope::MicrotasksScope(Isolate* isolate, MicrotasksScope::Type type) - : MicrotasksScope(isolate, nullptr, type) {} - -MicrotasksScope::MicrotasksScope(Isolate* isolate, - MicrotaskQueue* microtask_queue, - MicrotasksScope::Type type) - : isolate_(reinterpret_cast<i::Isolate*>(isolate)), - microtask_queue_(microtask_queue - ? static_cast<i::MicrotaskQueue*>(microtask_queue) - : isolate_->default_microtask_queue()), - run_(type == MicrotasksScope::kRunMicrotasks) { - if (run_) microtask_queue_->IncrementMicrotasksScopeDepth(); -#ifdef DEBUG - if (!run_) microtask_queue_->IncrementDebugMicrotasksScopeDepth(); -#endif -} - -MicrotasksScope::~MicrotasksScope() { - if (run_) { - microtask_queue_->DecrementMicrotasksScopeDepth(); - if (MicrotasksPolicy::kScoped == microtask_queue_->microtasks_policy()) { - microtask_queue_->PerformCheckpoint(reinterpret_cast<Isolate*>(isolate_)); - } - } -#ifdef DEBUG - if (!run_) microtask_queue_->DecrementDebugMicrotasksScopeDepth(); -#endif -} - -void MicrotasksScope::PerformCheckpoint(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - auto* microtask_queue = isolate->default_microtask_queue(); - microtask_queue->PerformCheckpoint(v8_isolate); -} - -int MicrotasksScope::GetCurrentDepth(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - auto* microtask_queue = isolate->default_microtask_queue(); - return microtask_queue->GetMicrotasksScopeDepth(); -} - -bool MicrotasksScope::IsRunningMicrotasks(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - auto* microtask_queue = isolate->default_microtask_queue(); - return microtask_queue->IsRunningMicrotasks(); -} - -String::Utf8Value::Utf8Value(v8::Isolate* isolate, v8::Local<v8::Value> obj) - : str_(nullptr), length_(0) { - if (obj.IsEmpty()) return; - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_DO_NOT_USE(i_isolate); - i::HandleScope scope(i_isolate); - Local<Context> context = isolate->GetCurrentContext(); - TryCatch try_catch(isolate); - Local<String> str; - if (!obj->ToString(context).ToLocal(&str)) return; - length_ = str->Utf8Length(isolate); - str_ = i::NewArray<char>(length_ + 1); - str->WriteUtf8(isolate, str_); -} - -String::Utf8Value::~Utf8Value() { - i::DeleteArray(str_); -} - -String::Value::Value(v8::Isolate* isolate, v8::Local<v8::Value> obj) - : str_(nullptr), length_(0) { - if (obj.IsEmpty()) return; - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_DO_NOT_USE(i_isolate); - i::HandleScope scope(i_isolate); - Local<Context> context = isolate->GetCurrentContext(); - TryCatch try_catch(isolate); - Local<String> str; - if (!obj->ToString(context).ToLocal(&str)) return; - length_ = str->Length(); - str_ = i::NewArray<uint16_t>(length_ + 1); - str->Write(isolate, str_); -} - -String::Value::~Value() { - i::DeleteArray(str_); -} - -#define DEFINE_ERROR(NAME, name) \ - Local<Value> Exception::NAME(v8::Local<v8::String> raw_message) { \ - i::Isolate* isolate = i::Isolate::Current(); \ - LOG_API(isolate, NAME, New); \ - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); \ - i::Object error; \ - { \ - i::HandleScope scope(isolate); \ - i::Handle<i::String> message = Utils::OpenHandle(*raw_message); \ - i::Handle<i::JSFunction> constructor = isolate->name##_function(); \ - error = *isolate->factory()->NewError(constructor, message); \ - } \ - i::Handle<i::Object> result(error, isolate); \ - return Utils::ToLocal(result); \ - } - -DEFINE_ERROR(RangeError, range_error) -DEFINE_ERROR(ReferenceError, reference_error) -DEFINE_ERROR(SyntaxError, syntax_error) -DEFINE_ERROR(TypeError, type_error) -DEFINE_ERROR(Error, error) - -#undef DEFINE_ERROR - - -Local<Message> Exception::CreateMessage(Isolate* isolate, - Local<Value> exception) { - i::Handle<i::Object> obj = Utils::OpenHandle(*exception); - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::HandleScope scope(i_isolate); - return Utils::MessageToLocal( - scope.CloseAndEscape(i_isolate->CreateMessage(obj, nullptr))); -} - - -Local<StackTrace> Exception::GetStackTrace(Local<Value> exception) { - i::Handle<i::Object> obj = Utils::OpenHandle(*exception); - if (!obj->IsJSObject()) return Local<StackTrace>(); - i::Handle<i::JSObject> js_obj = i::Handle<i::JSObject>::cast(obj); - i::Isolate* isolate = js_obj->GetIsolate(); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - return Utils::StackTraceToLocal(isolate->GetDetailedStackTrace(js_obj)); -} - - -// --- D e b u g S u p p o r t --- - -void debug::SetContextId(Local<Context> context, int id) { - Utils::OpenHandle(*context)->set_debug_context_id(i::Smi::FromInt(id)); -} - -int debug::GetContextId(Local<Context> context) { - i::Object value = Utils::OpenHandle(*context)->debug_context_id(); - return (value->IsSmi()) ? i::Smi::ToInt(value) : 0; -} - -void debug::SetInspector(Isolate* isolate, - v8_inspector::V8Inspector* inspector) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i_isolate->set_inspector(inspector); -} - -v8_inspector::V8Inspector* debug::GetInspector(Isolate* isolate) { - return reinterpret_cast<i::Isolate*>(isolate)->inspector(); -} - -void debug::SetBreakOnNextFunctionCall(Isolate* isolate) { - reinterpret_cast<i::Isolate*>(isolate)->debug()->SetBreakOnNextFunctionCall(); -} - -void debug::ClearBreakOnNextFunctionCall(Isolate* isolate) { - reinterpret_cast<i::Isolate*>(isolate) - ->debug() - ->ClearBreakOnNextFunctionCall(); -} - -MaybeLocal<Array> debug::GetInternalProperties(Isolate* v8_isolate, - Local<Value> value) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::Object> val = Utils::OpenHandle(*value); - i::Handle<i::JSArray> result; - if (!i::Runtime::GetInternalProperties(isolate, val).ToHandle(&result)) - return MaybeLocal<Array>(); - return Utils::ToLocal(result); -} - -MaybeLocal<Array> debug::GetPrivateFields(Local<Context> context, - Local<Object> value) { - PREPARE_FOR_EXECUTION(context, debug, GetPrivateFields, Array); - i::Handle<i::JSReceiver> val = Utils::OpenHandle(*value); - i::Handle<i::JSArray> result; - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - has_pending_exception = - !(internal_isolate->debug()->GetPrivateFields(val).ToHandle(&result)); - RETURN_ON_FAILED_EXECUTION(Array); - RETURN_ESCAPED(Utils::ToLocal(result)); -} - -void debug::ChangeBreakOnException(Isolate* isolate, ExceptionBreakState type) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - internal_isolate->debug()->ChangeBreakOnException( - i::BreakException, type == BreakOnAnyException); - internal_isolate->debug()->ChangeBreakOnException(i::BreakUncaughtException, - type != NoBreakOnException); -} - -void debug::SetBreakPointsActive(Isolate* v8_isolate, bool is_active) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - isolate->debug()->set_break_points_active(is_active); -} - -void debug::PrepareStep(Isolate* v8_isolate, StepAction action) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_DO_NOT_USE(isolate); - CHECK(isolate->debug()->CheckExecutionState()); - // Clear all current stepping setup. - isolate->debug()->ClearStepping(); - // Prepare step. - isolate->debug()->PrepareStep(static_cast<i::StepAction>(action)); -} - -void debug::ClearStepping(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - // Clear all current stepping setup. - isolate->debug()->ClearStepping(); -} - -void debug::BreakRightNow(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_DO_NOT_USE(isolate); - isolate->debug()->HandleDebugBreak(i::kIgnoreIfAllFramesBlackboxed); -} - -bool debug::AllFramesOnStackAreBlackboxed(Isolate* v8_isolate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_DO_NOT_USE(isolate); - return isolate->debug()->AllFramesOnStackAreBlackboxed(); -} - -v8::Isolate* debug::Script::GetIsolate() const { - return reinterpret_cast<v8::Isolate*>(Utils::OpenHandle(this)->GetIsolate()); -} - -ScriptOriginOptions debug::Script::OriginOptions() const { - return Utils::OpenHandle(this)->origin_options(); -} - -bool debug::Script::WasCompiled() const { - return Utils::OpenHandle(this)->compilation_state() == - i::Script::COMPILATION_STATE_COMPILED; -} - -bool debug::Script::IsEmbedded() const { - i::Handle<i::Script> script = Utils::OpenHandle(this); - return script->context_data() == - script->GetReadOnlyRoots().uninitialized_symbol(); -} - -int debug::Script::Id() const { return Utils::OpenHandle(this)->id(); } - -int debug::Script::LineOffset() const { - return Utils::OpenHandle(this)->line_offset(); -} - -int debug::Script::ColumnOffset() const { - return Utils::OpenHandle(this)->column_offset(); -} - -std::vector<int> debug::Script::LineEnds() const { - i::Handle<i::Script> script = Utils::OpenHandle(this); - if (script->type() == i::Script::TYPE_WASM && - this->SourceMappingURL().IsEmpty()) { - return std::vector<int>(); - } - i::Isolate* isolate = script->GetIsolate(); - i::HandleScope scope(isolate); - i::Script::InitLineEnds(script); - CHECK(script->line_ends()->IsFixedArray()); - i::Handle<i::FixedArray> line_ends(i::FixedArray::cast(script->line_ends()), - isolate); - std::vector<int> result(line_ends->length()); - for (int i = 0; i < line_ends->length(); ++i) { - i::Smi line_end = i::Smi::cast(line_ends->get(i)); - result[i] = line_end->value(); - } - return result; -} - -MaybeLocal<String> debug::Script::Name() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope handle_scope(isolate); - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Handle<i::Object> value(script->name(), isolate); - if (!value->IsString()) return MaybeLocal<String>(); - return Utils::ToLocal( - handle_scope.CloseAndEscape(i::Handle<i::String>::cast(value))); -} - -MaybeLocal<String> debug::Script::SourceURL() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope handle_scope(isolate); - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Handle<i::Object> value(script->source_url(), isolate); - if (!value->IsString()) return MaybeLocal<String>(); - return Utils::ToLocal( - handle_scope.CloseAndEscape(i::Handle<i::String>::cast(value))); -} - -MaybeLocal<String> debug::Script::SourceMappingURL() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope handle_scope(isolate); - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Handle<i::Object> value(script->source_mapping_url(), isolate); - if (!value->IsString()) return MaybeLocal<String>(); - return Utils::ToLocal( - handle_scope.CloseAndEscape(i::Handle<i::String>::cast(value))); -} - -Maybe<int> debug::Script::ContextId() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope handle_scope(isolate); - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Object value = script->context_data(); - if (value->IsSmi()) return Just(i::Smi::ToInt(value)); - return Nothing<int>(); -} - -MaybeLocal<String> debug::Script::Source() const { - i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); - i::HandleScope handle_scope(isolate); - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Handle<i::Object> value(script->source(), isolate); - if (!value->IsString()) return MaybeLocal<String>(); - return Utils::ToLocal( - handle_scope.CloseAndEscape(i::Handle<i::String>::cast(value))); -} - -bool debug::Script::IsWasm() const { - return Utils::OpenHandle(this)->type() == i::Script::TYPE_WASM; -} - -bool debug::Script::IsModule() const { - return Utils::OpenHandle(this)->origin_options().IsModule(); -} - -namespace { -int GetSmiValue(i::Handle<i::FixedArray> array, int index) { - return i::Smi::ToInt(array->get(index)); -} - -bool CompareBreakLocation(const i::BreakLocation& loc1, - const i::BreakLocation& loc2) { - return loc1.position() < loc2.position(); -} -} // namespace - -bool debug::Script::GetPossibleBreakpoints( - const debug::Location& start, const debug::Location& end, - bool restrict_to_function, - std::vector<debug::BreakLocation>* locations) const { - CHECK(!start.IsEmpty()); - i::Handle<i::Script> script = Utils::OpenHandle(this); - if (script->type() == i::Script::TYPE_WASM && - this->SourceMappingURL().IsEmpty()) { - i::WasmModuleObject module_object = - i::WasmModuleObject::cast(script->wasm_module_object()); - return module_object->GetPossibleBreakpoints(start, end, locations); - } - - i::Script::InitLineEnds(script); - CHECK(script->line_ends()->IsFixedArray()); - i::Isolate* isolate = script->GetIsolate(); - i::Handle<i::FixedArray> line_ends = - i::Handle<i::FixedArray>::cast(i::handle(script->line_ends(), isolate)); - CHECK(line_ends->length()); - - int start_offset = GetSourceOffset(start); - int end_offset = end.IsEmpty() - ? GetSmiValue(line_ends, line_ends->length() - 1) + 1 - : GetSourceOffset(end); - if (start_offset >= end_offset) return true; - - std::vector<i::BreakLocation> v8_locations; - if (!isolate->debug()->GetPossibleBreakpoints( - script, start_offset, end_offset, restrict_to_function, - &v8_locations)) { - return false; - } - - std::sort(v8_locations.begin(), v8_locations.end(), CompareBreakLocation); - int current_line_end_index = 0; - for (const auto& v8_location : v8_locations) { - int offset = v8_location.position(); - while (offset > GetSmiValue(line_ends, current_line_end_index)) { - ++current_line_end_index; - CHECK(current_line_end_index < line_ends->length()); - } - int line_offset = 0; - - if (current_line_end_index > 0) { - line_offset = GetSmiValue(line_ends, current_line_end_index - 1) + 1; - } - locations->emplace_back( - current_line_end_index + script->line_offset(), - offset - line_offset + - (current_line_end_index == 0 ? script->column_offset() : 0), - v8_location.type()); - } - return true; -} - -int debug::Script::GetSourceOffset(const debug::Location& location) const { - i::Handle<i::Script> script = Utils::OpenHandle(this); - if (script->type() == i::Script::TYPE_WASM) { - if (this->SourceMappingURL().IsEmpty()) { - return i::WasmModuleObject::cast(script->wasm_module_object()) - ->GetFunctionOffset(location.GetLineNumber()) + - location.GetColumnNumber(); - } - DCHECK_EQ(0, location.GetLineNumber()); - return location.GetColumnNumber(); - } - - int line = std::max(location.GetLineNumber() - script->line_offset(), 0); - int column = location.GetColumnNumber(); - if (line == 0) { - column = std::max(0, column - script->column_offset()); - } - - i::Script::InitLineEnds(script); - CHECK(script->line_ends()->IsFixedArray()); - i::Handle<i::FixedArray> line_ends = i::Handle<i::FixedArray>::cast( - i::handle(script->line_ends(), script->GetIsolate())); - CHECK(line_ends->length()); - if (line >= line_ends->length()) - return GetSmiValue(line_ends, line_ends->length() - 1); - int line_offset = GetSmiValue(line_ends, line); - if (line == 0) return std::min(column, line_offset); - int prev_line_offset = GetSmiValue(line_ends, line - 1); - return std::min(prev_line_offset + column + 1, line_offset); -} - -v8::debug::Location debug::Script::GetSourceLocation(int offset) const { - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Script::PositionInfo info; - i::Script::GetPositionInfo(script, offset, &info, i::Script::WITH_OFFSET); - return debug::Location(info.line, info.column); -} - -bool debug::Script::SetScriptSource(v8::Local<v8::String> newSource, - bool preview, - debug::LiveEditResult* result) const { - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Isolate* isolate = script->GetIsolate(); - return isolate->debug()->SetScriptSource( - script, Utils::OpenHandle(*newSource), preview, result); -} - -bool debug::Script::SetBreakpoint(v8::Local<v8::String> condition, - debug::Location* location, - debug::BreakpointId* id) const { - i::Handle<i::Script> script = Utils::OpenHandle(this); - i::Isolate* isolate = script->GetIsolate(); - int offset = GetSourceOffset(*location); - if (!isolate->debug()->SetBreakPointForScript( - script, Utils::OpenHandle(*condition), &offset, id)) { - return false; - } - *location = GetSourceLocation(offset); - return true; -} - -void debug::RemoveBreakpoint(Isolate* v8_isolate, BreakpointId id) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::HandleScope handle_scope(isolate); - isolate->debug()->RemoveBreakpoint(id); -} - -v8::Platform* debug::GetCurrentPlatform() { - return i::V8::GetCurrentPlatform(); -} - -debug::WasmScript* debug::WasmScript::Cast(debug::Script* script) { - CHECK(script->IsWasm()); - return static_cast<WasmScript*>(script); -} - -int debug::WasmScript::NumFunctions() const { - i::DisallowHeapAllocation no_gc; - i::Handle<i::Script> script = Utils::OpenHandle(this); - DCHECK_EQ(i::Script::TYPE_WASM, script->type()); - i::WasmModuleObject module_object = - i::WasmModuleObject::cast(script->wasm_module_object()); - const i::wasm::WasmModule* module = module_object->module(); - DCHECK_GE(i::kMaxInt, module->functions.size()); - return static_cast<int>(module->functions.size()); -} - -int debug::WasmScript::NumImportedFunctions() const { - i::DisallowHeapAllocation no_gc; - i::Handle<i::Script> script = Utils::OpenHandle(this); - DCHECK_EQ(i::Script::TYPE_WASM, script->type()); - i::WasmModuleObject module_object = - i::WasmModuleObject::cast(script->wasm_module_object()); - const i::wasm::WasmModule* module = module_object->module(); - DCHECK_GE(i::kMaxInt, module->num_imported_functions); - return static_cast<int>(module->num_imported_functions); -} - -std::pair<int, int> debug::WasmScript::GetFunctionRange( - int function_index) const { - i::DisallowHeapAllocation no_gc; - i::Handle<i::Script> script = Utils::OpenHandle(this); - DCHECK_EQ(i::Script::TYPE_WASM, script->type()); - i::WasmModuleObject module_object = - i::WasmModuleObject::cast(script->wasm_module_object()); - const i::wasm::WasmModule* module = module_object->module(); - DCHECK_LE(0, function_index); - DCHECK_GT(module->functions.size(), function_index); - const i::wasm::WasmFunction& func = module->functions[function_index]; - DCHECK_GE(i::kMaxInt, func.code.offset()); - DCHECK_GE(i::kMaxInt, func.code.end_offset()); - return std::make_pair(static_cast<int>(func.code.offset()), - static_cast<int>(func.code.end_offset())); -} - -uint32_t debug::WasmScript::GetFunctionHash(int function_index) { - i::DisallowHeapAllocation no_gc; - i::Handle<i::Script> script = Utils::OpenHandle(this); - DCHECK_EQ(i::Script::TYPE_WASM, script->type()); - i::WasmModuleObject module_object = - i::WasmModuleObject::cast(script->wasm_module_object()); - const i::wasm::WasmModule* module = module_object->module(); - DCHECK_LE(0, function_index); - DCHECK_GT(module->functions.size(), function_index); - const i::wasm::WasmFunction& func = module->functions[function_index]; - i::wasm::ModuleWireBytes wire_bytes( - module_object->native_module()->wire_bytes()); - i::Vector<const i::byte> function_bytes = wire_bytes.GetFunctionBytes(&func); - // TODO(herhut): Maybe also take module, name and signature into account. - return i::StringHasher::HashSequentialString(function_bytes.start(), - function_bytes.length(), 0); -} - -debug::WasmDisassembly debug::WasmScript::DisassembleFunction( - int function_index) const { - i::DisallowHeapAllocation no_gc; - i::Handle<i::Script> script = Utils::OpenHandle(this); - DCHECK_EQ(i::Script::TYPE_WASM, script->type()); - i::WasmModuleObject module_object = - i::WasmModuleObject::cast(script->wasm_module_object()); - return module_object->DisassembleFunction(function_index); -} - -debug::Location::Location(int line_number, int column_number) - : line_number_(line_number), - column_number_(column_number), - is_empty_(false) {} - -debug::Location::Location() - : line_number_(v8::Function::kLineOffsetNotFound), - column_number_(v8::Function::kLineOffsetNotFound), - is_empty_(true) {} - -int debug::Location::GetLineNumber() const { - DCHECK(!IsEmpty()); - return line_number_; -} - -int debug::Location::GetColumnNumber() const { - DCHECK(!IsEmpty()); - return column_number_; -} - -bool debug::Location::IsEmpty() const { return is_empty_; } - -void debug::GetLoadedScripts(v8::Isolate* v8_isolate, - PersistentValueVector<debug::Script>& scripts) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - { - i::DisallowHeapAllocation no_gc; - i::Script::Iterator iterator(isolate); - for (i::Script script = iterator.Next(); !script.is_null(); - script = iterator.Next()) { - if (!script->IsUserJavaScript()) continue; - if (script->HasValidSource()) { - i::HandleScope handle_scope(isolate); - i::Handle<i::Script> script_handle(script, isolate); - scripts.Append(ToApiHandle<Script>(script_handle)); - } - } - } -} - -MaybeLocal<UnboundScript> debug::CompileInspectorScript(Isolate* v8_isolate, - Local<String> source) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - PREPARE_FOR_DEBUG_INTERFACE_EXECUTION_WITH_ISOLATE(isolate, UnboundScript); - i::Handle<i::String> str = Utils::OpenHandle(*source); - i::Handle<i::SharedFunctionInfo> result; - { - ScriptOriginOptions origin_options; - i::ScriptData* script_data = nullptr; - i::MaybeHandle<i::SharedFunctionInfo> maybe_function_info = - i::Compiler::GetSharedFunctionInfoForScript( - isolate, str, i::Compiler::ScriptDetails(), origin_options, nullptr, - script_data, ScriptCompiler::kNoCompileOptions, - ScriptCompiler::kNoCacheBecauseInspector, - i::FLAG_expose_inspector_scripts ? i::NOT_NATIVES_CODE - : i::INSPECTOR_CODE); - has_pending_exception = !maybe_function_info.ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(UnboundScript); - } - RETURN_ESCAPED(ToApiHandle<UnboundScript>(result)); -} - -void debug::SetDebugDelegate(Isolate* v8_isolate, - debug::DebugDelegate* delegate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->debug()->SetDebugDelegate(delegate); -} - -void debug::SetAsyncEventDelegate(Isolate* v8_isolate, - debug::AsyncEventDelegate* delegate) { - reinterpret_cast<i::Isolate*>(v8_isolate)->set_async_event_delegate(delegate); -} - -void debug::ResetBlackboxedStateCache(Isolate* v8_isolate, - v8::Local<debug::Script> script) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::DisallowHeapAllocation no_gc; - i::SharedFunctionInfo::ScriptIterator iter(isolate, - *Utils::OpenHandle(*script)); - for (i::SharedFunctionInfo info = iter.Next(); !info.is_null(); - info = iter.Next()) { - if (info->HasDebugInfo()) { - info->GetDebugInfo()->set_computed_debug_is_blackboxed(false); - } - } -} - -int debug::EstimatedValueSize(Isolate* v8_isolate, v8::Local<v8::Value> value) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::Handle<i::Object> object = Utils::OpenHandle(*value); - if (object->IsSmi()) return i::kTaggedSize; - CHECK(object->IsHeapObject()); - return i::Handle<i::HeapObject>::cast(object)->Size(); -} - -v8::MaybeLocal<v8::Array> v8::Object::PreviewEntries(bool* is_key_value) { - if (IsMap()) { - *is_key_value = true; - return Map::Cast(this)->AsArray(); - } - if (IsSet()) { - *is_key_value = false; - return Set::Cast(this)->AsArray(); - } - - i::Handle<i::JSReceiver> object = Utils::OpenHandle(this); - i::Isolate* isolate = object->GetIsolate(); - Isolate* v8_isolate = reinterpret_cast<Isolate*>(isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - if (object->IsJSWeakCollection()) { - *is_key_value = object->IsJSWeakMap(); - return Utils::ToLocal(i::JSWeakCollection::GetEntries( - i::Handle<i::JSWeakCollection>::cast(object), 0)); - } - if (object->IsJSMapIterator()) { - i::Handle<i::JSMapIterator> it = i::Handle<i::JSMapIterator>::cast(object); - MapAsArrayKind const kind = - static_cast<MapAsArrayKind>(it->map()->instance_type()); - *is_key_value = kind == MapAsArrayKind::kEntries; - if (!it->HasMore()) return v8::Array::New(v8_isolate); - return Utils::ToLocal( - MapAsArray(isolate, it->table(), i::Smi::ToInt(it->index()), kind)); - } - if (object->IsJSSetIterator()) { - i::Handle<i::JSSetIterator> it = i::Handle<i::JSSetIterator>::cast(object); - SetAsArrayKind const kind = - static_cast<SetAsArrayKind>(it->map()->instance_type()); - *is_key_value = kind == SetAsArrayKind::kEntries; - if (!it->HasMore()) return v8::Array::New(v8_isolate); - return Utils::ToLocal( - SetAsArray(isolate, it->table(), i::Smi::ToInt(it->index()), kind)); - } - return v8::MaybeLocal<v8::Array>(); -} - -Local<Function> debug::GetBuiltin(Isolate* v8_isolate, Builtin builtin) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - i::HandleScope handle_scope(isolate); - i::Builtins::Name builtin_id; - switch (builtin) { - case kStringToLowerCase: - builtin_id = i::Builtins::kStringPrototypeToLocaleLowerCase; - break; - default: - UNREACHABLE(); - } - - i::Handle<i::String> name = isolate->factory()->empty_string(); - i::NewFunctionArgs args = i::NewFunctionArgs::ForBuiltinWithoutPrototype( - name, builtin_id, i::LanguageMode::kStrict); - i::Handle<i::JSFunction> fun = isolate->factory()->NewFunction(args); - - fun->shared()->set_internal_formal_parameter_count(0); - fun->shared()->set_length(0); - return Utils::ToLocal(handle_scope.CloseAndEscape(fun)); -} - -void debug::SetConsoleDelegate(Isolate* v8_isolate, ConsoleDelegate* delegate) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - isolate->set_console_delegate(delegate); -} - -debug::ConsoleCallArguments::ConsoleCallArguments( - const v8::FunctionCallbackInfo<v8::Value>& info) - : v8::FunctionCallbackInfo<v8::Value>(nullptr, info.values_, info.length_) { -} - -debug::ConsoleCallArguments::ConsoleCallArguments( - internal::BuiltinArguments& args) - : v8::FunctionCallbackInfo<v8::Value>( - nullptr, - // Drop the first argument (receiver, i.e. the "console" object). - args.address_of_arg_at(args.length() > 1 ? 1 : 0), - args.length() - 1) {} - -int debug::GetStackFrameId(v8::Local<v8::StackFrame> frame) { - return Utils::OpenHandle(*frame)->id(); -} - -v8::Local<v8::StackTrace> debug::GetDetailedStackTrace( - Isolate* v8_isolate, v8::Local<v8::Object> v8_error) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - i::Handle<i::JSReceiver> error = Utils::OpenHandle(*v8_error); - if (!error->IsJSObject()) { - return v8::Local<v8::StackTrace>(); - } - i::Handle<i::FixedArray> stack_trace = - isolate->GetDetailedStackTrace(i::Handle<i::JSObject>::cast(error)); - return Utils::StackTraceToLocal(stack_trace); -} - -MaybeLocal<debug::Script> debug::GeneratorObject::Script() { - i::Handle<i::JSGeneratorObject> obj = Utils::OpenHandle(this); - i::Object maybe_script = obj->function()->shared()->script(); - if (!maybe_script->IsScript()) return MaybeLocal<debug::Script>(); - i::Handle<i::Script> script(i::Script::cast(maybe_script), obj->GetIsolate()); - return ToApiHandle<debug::Script>(script); -} - -Local<Function> debug::GeneratorObject::Function() { - i::Handle<i::JSGeneratorObject> obj = Utils::OpenHandle(this); - return Utils::ToLocal(handle(obj->function(), obj->GetIsolate())); -} - -debug::Location debug::GeneratorObject::SuspendedLocation() { - i::Handle<i::JSGeneratorObject> obj = Utils::OpenHandle(this); - CHECK(obj->is_suspended()); - i::Object maybe_script = obj->function()->shared()->script(); - if (!maybe_script->IsScript()) return debug::Location(); - i::Isolate* isolate = obj->GetIsolate(); - i::Handle<i::Script> script(i::Script::cast(maybe_script), isolate); - i::Script::PositionInfo info; - i::SharedFunctionInfo::EnsureSourcePositionsAvailable( - isolate, i::handle(obj->function()->shared(), isolate)); - i::Script::GetPositionInfo(script, obj->source_position(), &info, - i::Script::WITH_OFFSET); - return debug::Location(info.line, info.column); -} - -bool debug::GeneratorObject::IsSuspended() { - return Utils::OpenHandle(this)->is_suspended(); -} - -v8::Local<debug::GeneratorObject> debug::GeneratorObject::Cast( - v8::Local<v8::Value> value) { - CHECK(value->IsGeneratorObject()); - return ToApiHandle<debug::GeneratorObject>(Utils::OpenHandle(*value)); -} - -MaybeLocal<v8::Value> debug::EvaluateGlobal(v8::Isolate* isolate, - v8::Local<v8::String> source, - bool throw_on_side_effect) { - i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); - PREPARE_FOR_DEBUG_INTERFACE_EXECUTION_WITH_ISOLATE(internal_isolate, Value); - Local<Value> result; - has_pending_exception = !ToLocal<Value>( - i::DebugEvaluate::Global(internal_isolate, Utils::OpenHandle(*source), - throw_on_side_effect), - &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - -void debug::QueryObjects(v8::Local<v8::Context> v8_context, - QueryObjectPredicate* predicate, - PersistentValueVector<v8::Object>* objects) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_context->GetIsolate()); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); - isolate->heap_profiler()->QueryObjects(Utils::OpenHandle(*v8_context), - predicate, objects); -} - -void debug::GlobalLexicalScopeNames( - v8::Local<v8::Context> v8_context, - v8::PersistentValueVector<v8::String>* names) { - i::Handle<i::Context> context = Utils::OpenHandle(*v8_context); - i::Isolate* isolate = context->GetIsolate(); - i::Handle<i::ScriptContextTable> table( - context->global_object()->native_context()->script_context_table(), - isolate); - for (int i = 0; i < table->used(); i++) { - i::Handle<i::Context> context = - i::ScriptContextTable::GetContext(isolate, table, i); - DCHECK(context->IsScriptContext()); - i::Handle<i::ScopeInfo> scope_info(context->scope_info(), isolate); - int local_count = scope_info->ContextLocalCount(); - for (int j = 0; j < local_count; ++j) { - i::String name = scope_info->ContextLocalName(j); - if (i::ScopeInfo::VariableIsSynthetic(name)) continue; - names->Append(Utils::ToLocal(handle(name, isolate))); - } - } -} - -void debug::SetReturnValue(v8::Isolate* v8_isolate, - v8::Local<v8::Value> value) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); - isolate->debug()->set_return_value(*Utils::OpenHandle(*value)); -} - -int64_t debug::GetNextRandomInt64(v8::Isolate* v8_isolate) { - return reinterpret_cast<i::Isolate*>(v8_isolate) - ->random_number_generator() - ->NextInt64(); -} - -int debug::GetDebuggingId(v8::Local<v8::Function> function) { - i::Handle<i::JSReceiver> callable = v8::Utils::OpenHandle(*function); - if (!callable->IsJSFunction()) return i::DebugInfo::kNoDebuggingId; - i::Handle<i::JSFunction> func = i::Handle<i::JSFunction>::cast(callable); - int id = func->GetIsolate()->debug()->GetFunctionDebuggingId(func); - DCHECK_NE(i::DebugInfo::kNoDebuggingId, id); - return id; -} - -bool debug::SetFunctionBreakpoint(v8::Local<v8::Function> function, - v8::Local<v8::String> condition, - BreakpointId* id) { - i::Handle<i::JSReceiver> callable = Utils::OpenHandle(*function); - if (!callable->IsJSFunction()) return false; - i::Handle<i::JSFunction> jsfunction = - i::Handle<i::JSFunction>::cast(callable); - i::Isolate* isolate = jsfunction->GetIsolate(); - i::Handle<i::String> condition_string = - condition.IsEmpty() ? isolate->factory()->empty_string() - : Utils::OpenHandle(*condition); - return isolate->debug()->SetBreakpointForFunction(jsfunction, - condition_string, id); -} - -debug::PostponeInterruptsScope::PostponeInterruptsScope(v8::Isolate* isolate) - : scope_( - new i::PostponeInterruptsScope(reinterpret_cast<i::Isolate*>(isolate), - i::StackGuard::API_INTERRUPT)) {} - -debug::PostponeInterruptsScope::~PostponeInterruptsScope() = default; - -Local<String> CpuProfileNode::GetFunctionName() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - i::Isolate* isolate = node->isolate(); - const i::CodeEntry* entry = node->entry(); - i::Handle<i::String> name = - isolate->factory()->InternalizeUtf8String(entry->name()); - return ToApiHandle<String>(name); -} - -int debug::Coverage::BlockData::StartOffset() const { return block_->start; } -int debug::Coverage::BlockData::EndOffset() const { return block_->end; } -uint32_t debug::Coverage::BlockData::Count() const { return block_->count; } - -int debug::Coverage::FunctionData::StartOffset() const { - return function_->start; -} -int debug::Coverage::FunctionData::EndOffset() const { return function_->end; } -uint32_t debug::Coverage::FunctionData::Count() const { - return function_->count; -} - -MaybeLocal<String> debug::Coverage::FunctionData::Name() const { - return ToApiHandle<String>(function_->name); -} - -size_t debug::Coverage::FunctionData::BlockCount() const { - return function_->blocks.size(); -} - -bool debug::Coverage::FunctionData::HasBlockCoverage() const { - return function_->has_block_coverage; -} - -debug::Coverage::BlockData debug::Coverage::FunctionData::GetBlockData( - size_t i) const { - return BlockData(&function_->blocks.at(i), coverage_); -} - -Local<debug::Script> debug::Coverage::ScriptData::GetScript() const { - return ToApiHandle<debug::Script>(script_->script); -} - -size_t debug::Coverage::ScriptData::FunctionCount() const { - return script_->functions.size(); -} - -debug::Coverage::FunctionData debug::Coverage::ScriptData::GetFunctionData( - size_t i) const { - return FunctionData(&script_->functions.at(i), coverage_); -} - -debug::Coverage::ScriptData::ScriptData(size_t index, - std::shared_ptr<i::Coverage> coverage) - : script_(&coverage->at(index)), coverage_(std::move(coverage)) {} - -size_t debug::Coverage::ScriptCount() const { return coverage_->size(); } - -debug::Coverage::ScriptData debug::Coverage::GetScriptData(size_t i) const { - return ScriptData(i, coverage_); -} - -debug::Coverage debug::Coverage::CollectPrecise(Isolate* isolate) { - return Coverage( - i::Coverage::CollectPrecise(reinterpret_cast<i::Isolate*>(isolate))); -} - -debug::Coverage debug::Coverage::CollectBestEffort(Isolate* isolate) { - return Coverage( - i::Coverage::CollectBestEffort(reinterpret_cast<i::Isolate*>(isolate))); -} - -void debug::Coverage::SelectMode(Isolate* isolate, debug::CoverageMode mode) { - i::Coverage::SelectMode(reinterpret_cast<i::Isolate*>(isolate), mode); -} - -int debug::TypeProfile::Entry::SourcePosition() const { - return entry_->position; -} - -std::vector<MaybeLocal<String>> debug::TypeProfile::Entry::Types() const { - std::vector<MaybeLocal<String>> result; - for (const internal::Handle<internal::String>& type : entry_->types) { - result.emplace_back(ToApiHandle<String>(type)); - } - return result; -} - -debug::TypeProfile::ScriptData::ScriptData( - size_t index, std::shared_ptr<i::TypeProfile> type_profile) - : script_(&type_profile->at(index)), - type_profile_(std::move(type_profile)) {} - -Local<debug::Script> debug::TypeProfile::ScriptData::GetScript() const { - return ToApiHandle<debug::Script>(script_->script); -} - -std::vector<debug::TypeProfile::Entry> debug::TypeProfile::ScriptData::Entries() - const { - std::vector<debug::TypeProfile::Entry> result; - for (const internal::TypeProfileEntry& entry : script_->entries) { - result.push_back(debug::TypeProfile::Entry(&entry, type_profile_)); - } - return result; -} - -debug::TypeProfile debug::TypeProfile::Collect(Isolate* isolate) { - return TypeProfile( - i::TypeProfile::Collect(reinterpret_cast<i::Isolate*>(isolate))); -} - -void debug::TypeProfile::SelectMode(Isolate* isolate, - debug::TypeProfileMode mode) { - i::TypeProfile::SelectMode(reinterpret_cast<i::Isolate*>(isolate), mode); -} - -size_t debug::TypeProfile::ScriptCount() const { return type_profile_->size(); } - -debug::TypeProfile::ScriptData debug::TypeProfile::GetScriptData( - size_t i) const { - return ScriptData(i, type_profile_); -} - -v8::MaybeLocal<v8::Value> debug::WeakMap::Get(v8::Local<v8::Context> context, - v8::Local<v8::Value> key) { - PREPARE_FOR_EXECUTION(context, WeakMap, Get, Value); - auto self = Utils::OpenHandle(this); - Local<Value> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; - has_pending_exception = - !ToLocal<Value>(i::Execution::Call(isolate, isolate->weakmap_get(), self, - arraysize(argv), argv), - &result); - RETURN_ON_FAILED_EXECUTION(Value); - RETURN_ESCAPED(result); -} - -v8::MaybeLocal<debug::WeakMap> debug::WeakMap::Set( - v8::Local<v8::Context> context, v8::Local<v8::Value> key, - v8::Local<v8::Value> value) { - PREPARE_FOR_EXECUTION(context, WeakMap, Set, WeakMap); - auto self = Utils::OpenHandle(this); - i::Handle<i::Object> result; - i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key), - Utils::OpenHandle(*value)}; - has_pending_exception = !i::Execution::Call(isolate, isolate->weakmap_set(), - self, arraysize(argv), argv) - .ToHandle(&result); - RETURN_ON_FAILED_EXECUTION(WeakMap); - RETURN_ESCAPED(Local<WeakMap>::Cast(Utils::ToLocal(result))); -} - -Local<debug::WeakMap> debug::WeakMap::New(v8::Isolate* isolate) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - LOG_API(i_isolate, WeakMap, New); - ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); - i::Handle<i::JSWeakMap> obj = i_isolate->factory()->NewJSWeakMap(); - return ToApiHandle<debug::WeakMap>(obj); -} - -debug::WeakMap* debug::WeakMap::Cast(v8::Value* value) { - return static_cast<debug::WeakMap*>(value); -} - -const char* CpuProfileNode::GetFunctionNameStr() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->entry()->name(); -} - -int CpuProfileNode::GetScriptId() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - const i::CodeEntry* entry = node->entry(); - return entry->script_id(); -} - -Local<String> CpuProfileNode::GetScriptResourceName() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - i::Isolate* isolate = node->isolate(); - return ToApiHandle<String>(isolate->factory()->InternalizeUtf8String( - node->entry()->resource_name())); -} - -const char* CpuProfileNode::GetScriptResourceNameStr() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->entry()->resource_name(); -} - -bool CpuProfileNode::IsScriptSharedCrossOrigin() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->entry()->is_shared_cross_origin(); -} - -int CpuProfileNode::GetLineNumber() const { - return reinterpret_cast<const i::ProfileNode*>(this)->line_number(); -} - - -int CpuProfileNode::GetColumnNumber() const { - return reinterpret_cast<const i::ProfileNode*>(this)-> - entry()->column_number(); -} - - -unsigned int CpuProfileNode::GetHitLineCount() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->GetHitLineCount(); -} - - -bool CpuProfileNode::GetLineTicks(LineTick* entries, - unsigned int length) const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->GetLineTicks(entries, length); -} - - -const char* CpuProfileNode::GetBailoutReason() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->entry()->bailout_reason(); -} - - -unsigned CpuProfileNode::GetHitCount() const { - return reinterpret_cast<const i::ProfileNode*>(this)->self_ticks(); -} - - -unsigned CpuProfileNode::GetCallUid() const { - return reinterpret_cast<const i::ProfileNode*>(this)->function_id(); -} - - -unsigned CpuProfileNode::GetNodeId() const { - return reinterpret_cast<const i::ProfileNode*>(this)->id(); -} - -CpuProfileNode::SourceType CpuProfileNode::GetSourceType() const { - return reinterpret_cast<const i::ProfileNode*>(this)->source_type(); -} - -int CpuProfileNode::GetChildrenCount() const { - return static_cast<int>( - reinterpret_cast<const i::ProfileNode*>(this)->children()->size()); -} - - -const CpuProfileNode* CpuProfileNode::GetChild(int index) const { - const i::ProfileNode* child = - reinterpret_cast<const i::ProfileNode*>(this)->children()->at(index); - return reinterpret_cast<const CpuProfileNode*>(child); -} - -const CpuProfileNode* CpuProfileNode::GetParent() const { - const i::ProfileNode* parent = - reinterpret_cast<const i::ProfileNode*>(this)->parent(); - return reinterpret_cast<const CpuProfileNode*>(parent); -} - -const std::vector<CpuProfileDeoptInfo>& CpuProfileNode::GetDeoptInfos() const { - const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); - return node->deopt_infos(); -} - - -void CpuProfile::Delete() { - i::CpuProfile* profile = reinterpret_cast<i::CpuProfile*>(this); - i::CpuProfiler* profiler = profile->cpu_profiler(); - DCHECK_NOT_NULL(profiler); - profiler->DeleteProfile(profile); -} - - -Local<String> CpuProfile::GetTitle() const { - const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); - i::Isolate* isolate = profile->top_down()->isolate(); - return ToApiHandle<String>(isolate->factory()->InternalizeUtf8String( - profile->title())); -} - - -const CpuProfileNode* CpuProfile::GetTopDownRoot() const { - const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); - return reinterpret_cast<const CpuProfileNode*>(profile->top_down()->root()); -} - - -const CpuProfileNode* CpuProfile::GetSample(int index) const { - const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); - return reinterpret_cast<const CpuProfileNode*>(profile->sample(index).node); -} - - -int64_t CpuProfile::GetSampleTimestamp(int index) const { - const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); - return (profile->sample(index).timestamp - base::TimeTicks()) - .InMicroseconds(); -} - - -int64_t CpuProfile::GetStartTime() const { - const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); - return (profile->start_time() - base::TimeTicks()).InMicroseconds(); -} - - -int64_t CpuProfile::GetEndTime() const { - const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); - return (profile->end_time() - base::TimeTicks()).InMicroseconds(); -} - - -int CpuProfile::GetSamplesCount() const { - return reinterpret_cast<const i::CpuProfile*>(this)->samples_count(); -} - -CpuProfiler* CpuProfiler::New(Isolate* isolate) { - return reinterpret_cast<CpuProfiler*>( - new i::CpuProfiler(reinterpret_cast<i::Isolate*>(isolate))); -} - -void CpuProfiler::Dispose() { delete reinterpret_cast<i::CpuProfiler*>(this); } - -// static -void CpuProfiler::CollectSample(Isolate* isolate) { - i::CpuProfiler::CollectSample(reinterpret_cast<i::Isolate*>(isolate)); -} - -void CpuProfiler::SetSamplingInterval(int us) { - DCHECK_GE(us, 0); - return reinterpret_cast<i::CpuProfiler*>(this)->set_sampling_interval( - base::TimeDelta::FromMicroseconds(us)); -} - -void CpuProfiler::SetUsePreciseSampling(bool use_precise_sampling) { - reinterpret_cast<i::CpuProfiler*>(this)->set_use_precise_sampling( - use_precise_sampling); -} - -void CpuProfiler::CollectSample() { - reinterpret_cast<i::CpuProfiler*>(this)->CollectSample(); -} - -void CpuProfiler::StartProfiling(Local<String> title, bool record_samples) { - reinterpret_cast<i::CpuProfiler*>(this)->StartProfiling( - *Utils::OpenHandle(*title), record_samples, kLeafNodeLineNumbers); -} - -void CpuProfiler::StartProfiling(Local<String> title, CpuProfilingMode mode, - bool record_samples) { - reinterpret_cast<i::CpuProfiler*>(this)->StartProfiling( - *Utils::OpenHandle(*title), record_samples, mode); -} - -CpuProfile* CpuProfiler::StopProfiling(Local<String> title) { - return reinterpret_cast<CpuProfile*>( - reinterpret_cast<i::CpuProfiler*>(this)->StopProfiling( - *Utils::OpenHandle(*title))); -} - - -void CpuProfiler::SetIdle(bool is_idle) { - i::CpuProfiler* profiler = reinterpret_cast<i::CpuProfiler*>(this); - i::Isolate* isolate = profiler->isolate(); - isolate->SetIdle(is_idle); -} - -void CpuProfiler::UseDetailedSourcePositionsForProfiling(Isolate* isolate) { - reinterpret_cast<i::Isolate*>(isolate) - ->set_detailed_source_positions_for_profiling(true); -} - -uintptr_t CodeEvent::GetCodeStartAddress() { - return reinterpret_cast<i::CodeEvent*>(this)->code_start_address; -} - -size_t CodeEvent::GetCodeSize() { - return reinterpret_cast<i::CodeEvent*>(this)->code_size; -} - -Local<String> CodeEvent::GetFunctionName() { - return ToApiHandle<String>( - reinterpret_cast<i::CodeEvent*>(this)->function_name); -} - -Local<String> CodeEvent::GetScriptName() { - return ToApiHandle<String>( - reinterpret_cast<i::CodeEvent*>(this)->script_name); -} - -int CodeEvent::GetScriptLine() { - return reinterpret_cast<i::CodeEvent*>(this)->script_line; -} - -int CodeEvent::GetScriptColumn() { - return reinterpret_cast<i::CodeEvent*>(this)->script_column; -} - -CodeEventType CodeEvent::GetCodeType() { - return reinterpret_cast<i::CodeEvent*>(this)->code_type; -} - -const char* CodeEvent::GetComment() { - return reinterpret_cast<i::CodeEvent*>(this)->comment; -} - -const char* CodeEvent::GetCodeEventTypeName(CodeEventType code_event_type) { - switch (code_event_type) { - case kUnknownType: - return "Unknown"; -#define V(Name) \ - case k##Name##Type: \ - return #Name; - CODE_EVENTS_LIST(V) -#undef V - } - // The execution should never pass here - UNREACHABLE(); - // NOTE(mmarchini): Workaround to fix a compiler failure on GCC 4.9 - return "Unknown"; -} - -CodeEventHandler::CodeEventHandler(Isolate* isolate) { - internal_listener_ = - new i::ExternalCodeEventListener(reinterpret_cast<i::Isolate*>(isolate)); -} - -CodeEventHandler::~CodeEventHandler() { - delete reinterpret_cast<i::ExternalCodeEventListener*>(internal_listener_); -} - -void CodeEventHandler::Enable() { - reinterpret_cast<i::ExternalCodeEventListener*>(internal_listener_) - ->StartListening(this); -} - -void CodeEventHandler::Disable() { - reinterpret_cast<i::ExternalCodeEventListener*>(internal_listener_) - ->StopListening(); -} - -static i::HeapGraphEdge* ToInternal(const HeapGraphEdge* edge) { - return const_cast<i::HeapGraphEdge*>( - reinterpret_cast<const i::HeapGraphEdge*>(edge)); -} - - -HeapGraphEdge::Type HeapGraphEdge::GetType() const { - return static_cast<HeapGraphEdge::Type>(ToInternal(this)->type()); -} - - -Local<Value> HeapGraphEdge::GetName() const { - i::HeapGraphEdge* edge = ToInternal(this); - i::Isolate* isolate = edge->isolate(); - switch (edge->type()) { - case i::HeapGraphEdge::kContextVariable: - case i::HeapGraphEdge::kInternal: - case i::HeapGraphEdge::kProperty: - case i::HeapGraphEdge::kShortcut: - case i::HeapGraphEdge::kWeak: - return ToApiHandle<String>( - isolate->factory()->InternalizeUtf8String(edge->name())); - case i::HeapGraphEdge::kElement: - case i::HeapGraphEdge::kHidden: - return ToApiHandle<Number>( - isolate->factory()->NewNumberFromInt(edge->index())); - default: UNREACHABLE(); - } - return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); -} - - -const HeapGraphNode* HeapGraphEdge::GetFromNode() const { - const i::HeapEntry* from = ToInternal(this)->from(); - return reinterpret_cast<const HeapGraphNode*>(from); -} - - -const HeapGraphNode* HeapGraphEdge::GetToNode() const { - const i::HeapEntry* to = ToInternal(this)->to(); - return reinterpret_cast<const HeapGraphNode*>(to); -} - - -static i::HeapEntry* ToInternal(const HeapGraphNode* entry) { - return const_cast<i::HeapEntry*>( - reinterpret_cast<const i::HeapEntry*>(entry)); -} - - -HeapGraphNode::Type HeapGraphNode::GetType() const { - return static_cast<HeapGraphNode::Type>(ToInternal(this)->type()); -} - - -Local<String> HeapGraphNode::GetName() const { - i::Isolate* isolate = ToInternal(this)->isolate(); - return ToApiHandle<String>( - isolate->factory()->InternalizeUtf8String(ToInternal(this)->name())); -} - - -SnapshotObjectId HeapGraphNode::GetId() const { - return ToInternal(this)->id(); -} - - -size_t HeapGraphNode::GetShallowSize() const { - return ToInternal(this)->self_size(); -} - - -int HeapGraphNode::GetChildrenCount() const { - return ToInternal(this)->children_count(); -} - - -const HeapGraphEdge* HeapGraphNode::GetChild(int index) const { - return reinterpret_cast<const HeapGraphEdge*>(ToInternal(this)->child(index)); -} - - -static i::HeapSnapshot* ToInternal(const HeapSnapshot* snapshot) { - return const_cast<i::HeapSnapshot*>( - reinterpret_cast<const i::HeapSnapshot*>(snapshot)); -} - - -void HeapSnapshot::Delete() { - i::Isolate* isolate = ToInternal(this)->profiler()->isolate(); - if (isolate->heap_profiler()->GetSnapshotsCount() > 1) { - ToInternal(this)->Delete(); - } else { - // If this is the last snapshot, clean up all accessory data as well. - isolate->heap_profiler()->DeleteAllSnapshots(); - } -} - - -const HeapGraphNode* HeapSnapshot::GetRoot() const { - return reinterpret_cast<const HeapGraphNode*>(ToInternal(this)->root()); -} - - -const HeapGraphNode* HeapSnapshot::GetNodeById(SnapshotObjectId id) const { - return reinterpret_cast<const HeapGraphNode*>( - ToInternal(this)->GetEntryById(id)); -} - - -int HeapSnapshot::GetNodesCount() const { - return static_cast<int>(ToInternal(this)->entries().size()); -} - - -const HeapGraphNode* HeapSnapshot::GetNode(int index) const { - return reinterpret_cast<const HeapGraphNode*>( - &ToInternal(this)->entries().at(index)); -} - - -SnapshotObjectId HeapSnapshot::GetMaxSnapshotJSObjectId() const { - return ToInternal(this)->max_snapshot_js_object_id(); -} - - -void HeapSnapshot::Serialize(OutputStream* stream, - HeapSnapshot::SerializationFormat format) const { - Utils::ApiCheck(format == kJSON, - "v8::HeapSnapshot::Serialize", - "Unknown serialization format"); - Utils::ApiCheck(stream->GetChunkSize() > 0, - "v8::HeapSnapshot::Serialize", - "Invalid stream chunk size"); - i::HeapSnapshotJSONSerializer serializer(ToInternal(this)); - serializer.Serialize(stream); -} - - -// static -STATIC_CONST_MEMBER_DEFINITION const SnapshotObjectId - HeapProfiler::kUnknownObjectId; - - -int HeapProfiler::GetSnapshotCount() { - return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotsCount(); -} - - -const HeapSnapshot* HeapProfiler::GetHeapSnapshot(int index) { - return reinterpret_cast<const HeapSnapshot*>( - reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshot(index)); -} - - -SnapshotObjectId HeapProfiler::GetObjectId(Local<Value> value) { - i::Handle<i::Object> obj = Utils::OpenHandle(*value); - return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotObjectId(obj); -} - - -Local<Value> HeapProfiler::FindObjectById(SnapshotObjectId id) { - i::Handle<i::Object> obj = - reinterpret_cast<i::HeapProfiler*>(this)->FindHeapObjectById(id); - if (obj.is_null()) return Local<Value>(); - return Utils::ToLocal(obj); -} - - -void HeapProfiler::ClearObjectIds() { - reinterpret_cast<i::HeapProfiler*>(this)->ClearHeapObjectMap(); -} - - -const HeapSnapshot* HeapProfiler::TakeHeapSnapshot( - ActivityControl* control, ObjectNameResolver* resolver) { - return reinterpret_cast<const HeapSnapshot*>( - reinterpret_cast<i::HeapProfiler*>(this) - ->TakeSnapshot(control, resolver)); -} - - -void HeapProfiler::StartTrackingHeapObjects(bool track_allocations) { - reinterpret_cast<i::HeapProfiler*>(this)->StartHeapObjectsTracking( - track_allocations); -} - - -void HeapProfiler::StopTrackingHeapObjects() { - reinterpret_cast<i::HeapProfiler*>(this)->StopHeapObjectsTracking(); -} - - -SnapshotObjectId HeapProfiler::GetHeapStats(OutputStream* stream, - int64_t* timestamp_us) { - i::HeapProfiler* heap_profiler = reinterpret_cast<i::HeapProfiler*>(this); - return heap_profiler->PushHeapObjectsStats(stream, timestamp_us); -} - -bool HeapProfiler::StartSamplingHeapProfiler(uint64_t sample_interval, - int stack_depth, - SamplingFlags flags) { - return reinterpret_cast<i::HeapProfiler*>(this)->StartSamplingHeapProfiler( - sample_interval, stack_depth, flags); -} - - -void HeapProfiler::StopSamplingHeapProfiler() { - reinterpret_cast<i::HeapProfiler*>(this)->StopSamplingHeapProfiler(); -} - - -AllocationProfile* HeapProfiler::GetAllocationProfile() { - return reinterpret_cast<i::HeapProfiler*>(this)->GetAllocationProfile(); -} - -void HeapProfiler::DeleteAllHeapSnapshots() { - reinterpret_cast<i::HeapProfiler*>(this)->DeleteAllSnapshots(); -} - -void HeapProfiler::AddBuildEmbedderGraphCallback( - BuildEmbedderGraphCallback callback, void* data) { - reinterpret_cast<i::HeapProfiler*>(this)->AddBuildEmbedderGraphCallback( - callback, data); -} - -void HeapProfiler::RemoveBuildEmbedderGraphCallback( - BuildEmbedderGraphCallback callback, void* data) { - reinterpret_cast<i::HeapProfiler*>(this)->RemoveBuildEmbedderGraphCallback( - callback, data); -} - -v8::Testing::StressType internal::Testing::stress_type_ = - v8::Testing::kStressTypeOpt; - - -void Testing::SetStressRunType(Testing::StressType type) { - internal::Testing::set_stress_type(type); -} - - -int Testing::GetStressRuns() { - if (internal::FLAG_stress_runs != 0) return internal::FLAG_stress_runs; -#ifdef DEBUG - // In debug mode the code runs much slower so stressing will only make two - // runs. - return 2; -#else - return 5; -#endif -} - - -static void SetFlagsFromString(const char* flags) { - V8::SetFlagsFromString(flags, i::StrLength(flags)); -} - - -void Testing::PrepareStressRun(int run) { - static const char* kLazyOptimizations = - "--prepare-always-opt " - "--max-inlined-bytecode-size=999999 " - "--max-inlined-bytecode-size-cumulative=999999 " - "--noalways-opt"; - static const char* kForcedOptimizations = "--always-opt"; - - // If deoptimization stressed turn on frequent deoptimization. If no value - // is spefified through --deopt-every-n-times use a default default value. - static const char* kDeoptEvery13Times = "--deopt-every-n-times=13"; - if (internal::Testing::stress_type() == Testing::kStressTypeDeopt && - internal::FLAG_deopt_every_n_times == 0) { - SetFlagsFromString(kDeoptEvery13Times); - } - -#ifdef DEBUG - // As stressing in debug mode only make two runs skip the deopt stressing - // here. - if (run == GetStressRuns() - 1) { - SetFlagsFromString(kForcedOptimizations); - } else { - SetFlagsFromString(kLazyOptimizations); - } -#else - if (run == GetStressRuns() - 1) { - SetFlagsFromString(kForcedOptimizations); - } else if (run != GetStressRuns() - 2) { - SetFlagsFromString(kLazyOptimizations); - } -#endif -} - - -void Testing::DeoptimizeAll(Isolate* isolate) { - i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); - i::HandleScope scope(i_isolate); - i::Deoptimizer::DeoptimizeAll(i_isolate); -} - -void EmbedderHeapTracer::FinalizeTracing() { - if (isolate_) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(isolate_); - if (isolate->heap()->incremental_marking()->IsMarking()) { - isolate->heap()->FinalizeIncrementalMarkingAtomically( - i::GarbageCollectionReason::kExternalFinalize); - } - } -} - -void EmbedderHeapTracer::GarbageCollectionForTesting( - EmbedderStackState stack_state) { - CHECK(isolate_); - CHECK(i::FLAG_expose_gc); - i::Heap* const heap = reinterpret_cast<i::Isolate*>(isolate_)->heap(); - heap->SetEmbedderStackStateForNextFinalizaton(stack_state); - heap->PreciseCollectAllGarbage(i::Heap::kNoGCFlags, - i::GarbageCollectionReason::kTesting, - kGCCallbackFlagForced); -} - -void EmbedderHeapTracer::RegisterEmbedderReference( - const TracedGlobal<v8::Value>& ref) { - if (ref.IsEmpty()) return; - - i::Heap* const heap = reinterpret_cast<i::Isolate*>(isolate_)->heap(); - heap->RegisterExternallyReferencedObject( - reinterpret_cast<i::Address*>(ref.val_)); -} - -void EmbedderHeapTracer::IterateTracedGlobalHandles( - TracedGlobalHandleVisitor* visitor) { - i::Isolate* isolate = reinterpret_cast<i::Isolate*>(isolate_); - i::DisallowHeapAllocation no_allocation; - isolate->global_handles()->IterateTracedNodes(visitor); -} - -namespace internal { - -const size_t HandleScopeImplementer::kEnteredContextsOffset = - offsetof(HandleScopeImplementer, entered_contexts_); -const size_t HandleScopeImplementer::kIsMicrotaskContextOffset = - offsetof(HandleScopeImplementer, is_microtask_context_); - -void HandleScopeImplementer::FreeThreadResources() { - Free(); -} - - -char* HandleScopeImplementer::ArchiveThread(char* storage) { - HandleScopeData* current = isolate_->handle_scope_data(); - handle_scope_data_ = *current; - MemCopy(storage, this, sizeof(*this)); - - ResetAfterArchive(); - current->Initialize(); - - return storage + ArchiveSpacePerThread(); -} - - -int HandleScopeImplementer::ArchiveSpacePerThread() { - return sizeof(HandleScopeImplementer); -} - - -char* HandleScopeImplementer::RestoreThread(char* storage) { - MemCopy(this, storage, sizeof(*this)); - *isolate_->handle_scope_data() = handle_scope_data_; - return storage + ArchiveSpacePerThread(); -} - -void HandleScopeImplementer::IterateThis(RootVisitor* v) { -#ifdef DEBUG - bool found_block_before_deferred = false; -#endif - // Iterate over all handles in the blocks except for the last. - for (int i = static_cast<int>(blocks()->size()) - 2; i >= 0; --i) { - Address* block = blocks()->at(i); - // Cast possibly-unrelated pointers to plain Address before comparing them - // to avoid undefined behavior. - if (last_handle_before_deferred_block_ != nullptr && - (reinterpret_cast<Address>(last_handle_before_deferred_block_) <= - reinterpret_cast<Address>(&block[kHandleBlockSize])) && - (reinterpret_cast<Address>(last_handle_before_deferred_block_) >= - reinterpret_cast<Address>(block))) { - v->VisitRootPointers(Root::kHandleScope, nullptr, FullObjectSlot(block), - FullObjectSlot(last_handle_before_deferred_block_)); - DCHECK(!found_block_before_deferred); -#ifdef DEBUG - found_block_before_deferred = true; -#endif - } else { - v->VisitRootPointers(Root::kHandleScope, nullptr, FullObjectSlot(block), - FullObjectSlot(&block[kHandleBlockSize])); - } - } - - DCHECK(last_handle_before_deferred_block_ == nullptr || - found_block_before_deferred); - - // Iterate over live handles in the last block (if any). - if (!blocks()->empty()) { - v->VisitRootPointers(Root::kHandleScope, nullptr, - FullObjectSlot(blocks()->back()), - FullObjectSlot(handle_scope_data_.next)); - } - - DetachableVector<Context>* context_lists[2] = {&saved_contexts_, - &entered_contexts_}; - for (unsigned i = 0; i < arraysize(context_lists); i++) { - context_lists[i]->shrink_to_fit(); - if (context_lists[i]->empty()) continue; - FullObjectSlot start(&context_lists[i]->front()); - v->VisitRootPointers(Root::kHandleScope, nullptr, start, - start + static_cast<int>(context_lists[i]->size())); - } -} - -void HandleScopeImplementer::Iterate(RootVisitor* v) { - HandleScopeData* current = isolate_->handle_scope_data(); - handle_scope_data_ = *current; - IterateThis(v); -} - -char* HandleScopeImplementer::Iterate(RootVisitor* v, char* storage) { - HandleScopeImplementer* scope_implementer = - reinterpret_cast<HandleScopeImplementer*>(storage); - scope_implementer->IterateThis(v); - return storage + ArchiveSpacePerThread(); -} - -DeferredHandles* HandleScopeImplementer::Detach(Address* prev_limit) { - DeferredHandles* deferred = - new DeferredHandles(isolate()->handle_scope_data()->next, isolate()); - - while (!blocks_.empty()) { - Address* block_start = blocks_.back(); - Address* block_limit = &block_start[kHandleBlockSize]; - // We should not need to check for SealHandleScope here. Assert this. - DCHECK(prev_limit == block_limit || - !(block_start <= prev_limit && prev_limit <= block_limit)); - if (prev_limit == block_limit) break; - deferred->blocks_.push_back(blocks_.back()); - blocks_.pop_back(); - } - - // deferred->blocks_ now contains the blocks installed on the - // HandleScope stack since BeginDeferredScope was called, but in - // reverse order. - - DCHECK(prev_limit == nullptr || !blocks_.empty()); - - DCHECK(!blocks_.empty() && prev_limit != nullptr); - DCHECK_NOT_NULL(last_handle_before_deferred_block_); - last_handle_before_deferred_block_ = nullptr; - return deferred; -} - - -void HandleScopeImplementer::BeginDeferredScope() { - DCHECK_NULL(last_handle_before_deferred_block_); - last_handle_before_deferred_block_ = isolate()->handle_scope_data()->next; -} - - -DeferredHandles::~DeferredHandles() { - isolate_->UnlinkDeferredHandles(this); - - for (size_t i = 0; i < blocks_.size(); i++) { -#ifdef ENABLE_HANDLE_ZAPPING - HandleScope::ZapRange(blocks_[i], &blocks_[i][kHandleBlockSize]); -#endif - isolate_->handle_scope_implementer()->ReturnBlock(blocks_[i]); - } -} - -void DeferredHandles::Iterate(RootVisitor* v) { - DCHECK(!blocks_.empty()); - - // Comparing pointers that do not point into the same array is undefined - // behavior, which means if we didn't cast everything to plain Address - // before comparing, the compiler would be allowed to assume that all - // comparisons evaluate to true and drop the entire check. - DCHECK((reinterpret_cast<Address>(first_block_limit_) >= - reinterpret_cast<Address>(blocks_.front())) && - (reinterpret_cast<Address>(first_block_limit_) <= - reinterpret_cast<Address>(&(blocks_.front())[kHandleBlockSize]))); - - v->VisitRootPointers(Root::kHandleScope, nullptr, - FullObjectSlot(blocks_.front()), - FullObjectSlot(first_block_limit_)); - - for (size_t i = 1; i < blocks_.size(); i++) { - v->VisitRootPointers(Root::kHandleScope, nullptr, - FullObjectSlot(blocks_[i]), - FullObjectSlot(&blocks_[i][kHandleBlockSize])); - } -} - - -void InvokeAccessorGetterCallback( - v8::Local<v8::Name> property, - const v8::PropertyCallbackInfo<v8::Value>& info, - v8::AccessorNameGetterCallback getter) { - // Leaving JavaScript. - Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate()); - RuntimeCallTimerScope timer(isolate, - RuntimeCallCounterId::kAccessorGetterCallback); - Address getter_address = reinterpret_cast<Address>(getter); - VMState<EXTERNAL> state(isolate); - ExternalCallbackScope call_scope(isolate, getter_address); - getter(property, info); -} - - -void InvokeFunctionCallback(const v8::FunctionCallbackInfo<v8::Value>& info, - v8::FunctionCallback callback) { - Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate()); - RuntimeCallTimerScope timer(isolate, - RuntimeCallCounterId::kInvokeFunctionCallback); - Address callback_address = reinterpret_cast<Address>(callback); - VMState<EXTERNAL> state(isolate); - ExternalCallbackScope call_scope(isolate, callback_address); - callback(info); -} - -// Undefine macros for jumbo build. -#undef LOG_API -#undef ENTER_V8_DO_NOT_USE -#undef ENTER_V8_HELPER_DO_NOT_USE -#undef PREPARE_FOR_DEBUG_INTERFACE_EXECUTION_WITH_ISOLATE -#undef PREPARE_FOR_EXECUTION_WITH_CONTEXT -#undef PREPARE_FOR_EXECUTION -#undef ENTER_V8 -#undef ENTER_V8_NO_SCRIPT -#undef ENTER_V8_NO_SCRIPT_NO_EXCEPTION -#undef ENTER_V8_FOR_NEW_CONTEXT -#undef EXCEPTION_BAILOUT_CHECK_SCOPED_DO_NOT_USE -#undef RETURN_ON_FAILED_EXECUTION -#undef RETURN_ON_FAILED_EXECUTION_PRIMITIVE -#undef RETURN_TO_LOCAL_UNCHECKED -#undef RETURN_ESCAPED -#undef SET_FIELD_WRAPPED -#undef NEW_STRING -#undef CALLBACK_SETTER - -} // namespace internal -} // namespace v8 |