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// Copyright 2015 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.
#ifndef V8_CONTEXTS_INL_H_
#define V8_CONTEXTS_INL_H_
#include "src/contexts.h"
#include "src/heap/heap.h"
#include "src/objects-inl.h"
#include "src/objects/dictionary.h"
#include "src/objects/map-inl.h"
#include "src/objects/regexp-match-info.h"
namespace v8 {
namespace internal {
// static
ScriptContextTable* ScriptContextTable::cast(Object* context) {
DCHECK(context->IsScriptContextTable());
return reinterpret_cast<ScriptContextTable*>(context);
}
int ScriptContextTable::used() const {
return Smi::cast(get(kUsedSlot))->value();
}
void ScriptContextTable::set_used(int used) {
set(kUsedSlot, Smi::FromInt(used));
}
// static
Handle<Context> ScriptContextTable::GetContext(Handle<ScriptContextTable> table,
int i) {
DCHECK(i < table->used());
return Handle<Context>::cast(
FixedArray::get(*table, i + kFirstContextSlot, table->GetIsolate()));
}
// static
Context* Context::cast(Object* context) {
DCHECK(context->IsContext());
return reinterpret_cast<Context*>(context);
}
JSFunction* Context::closure() { return JSFunction::cast(get(CLOSURE_INDEX)); }
void Context::set_closure(JSFunction* closure) { set(CLOSURE_INDEX, closure); }
Context* Context::previous() {
Object* result = get(PREVIOUS_INDEX);
DCHECK(IsBootstrappingOrValidParentContext(result, this));
return reinterpret_cast<Context*>(result);
}
void Context::set_previous(Context* context) { set(PREVIOUS_INDEX, context); }
Object* Context::next_context_link() { return get(Context::NEXT_CONTEXT_LINK); }
bool Context::has_extension() { return !extension()->IsTheHole(GetIsolate()); }
HeapObject* Context::extension() {
return HeapObject::cast(get(EXTENSION_INDEX));
}
void Context::set_extension(HeapObject* object) {
set(EXTENSION_INDEX, object);
}
Context* Context::native_context() {
Object* result = get(NATIVE_CONTEXT_INDEX);
DCHECK(IsBootstrappingOrNativeContext(this->GetIsolate(), result));
return reinterpret_cast<Context*>(result);
}
void Context::set_native_context(Context* context) {
set(NATIVE_CONTEXT_INDEX, context);
}
bool Context::IsNativeContext() {
Map* map = this->map();
return map == map->GetHeap()->native_context_map();
}
bool Context::IsFunctionContext() {
Map* map = this->map();
return map == map->GetHeap()->function_context_map();
}
bool Context::IsCatchContext() {
Map* map = this->map();
return map == map->GetHeap()->catch_context_map();
}
bool Context::IsWithContext() {
Map* map = this->map();
return map == map->GetHeap()->with_context_map();
}
bool Context::IsDebugEvaluateContext() {
Map* map = this->map();
return map == map->GetHeap()->debug_evaluate_context_map();
}
bool Context::IsBlockContext() {
Map* map = this->map();
return map == map->GetHeap()->block_context_map();
}
bool Context::IsModuleContext() {
Map* map = this->map();
return map == map->GetHeap()->module_context_map();
}
bool Context::IsEvalContext() {
Map* map = this->map();
return map == map->GetHeap()->eval_context_map();
}
bool Context::IsScriptContext() {
Map* map = this->map();
return map == map->GetHeap()->script_context_map();
}
bool Context::OSROptimizedCodeCacheIsCleared() {
return osr_code_table() == GetHeap()->empty_fixed_array();
}
bool Context::HasSameSecurityTokenAs(Context* that) {
return this->native_context()->security_token() ==
that->native_context()->security_token();
}
#define NATIVE_CONTEXT_FIELD_ACCESSORS(index, type, name) \
void Context::set_##name(type* value) { \
DCHECK(IsNativeContext()); \
set(index, value); \
} \
bool Context::is_##name(type* value) { \
DCHECK(IsNativeContext()); \
return type::cast(get(index)) == value; \
} \
type* Context::name() { \
DCHECK(IsNativeContext()); \
return type::cast(get(index)); \
}
NATIVE_CONTEXT_FIELDS(NATIVE_CONTEXT_FIELD_ACCESSORS)
#undef NATIVE_CONTEXT_FIELD_ACCESSORS
} // namespace internal
} // namespace v8
#endif // V8_CONTEXTS_INL_H_
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