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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_TEST_CCTEST_INTERPRETER_INTERPRETER_TESTER_H_
#define V8_TEST_CCTEST_INTERPRETER_INTERPRETER_TESTER_H_
#include "src/v8.h"
#include "src/api.h"
#include "src/execution.h"
#include "src/handles.h"
#include "src/interpreter/bytecode-array-builder.h"
#include "src/interpreter/interpreter.h"
#include "test/cctest/cctest.h"
#include "test/cctest/test-feedback-vector.h"
namespace v8 {
namespace internal {
namespace interpreter {
MaybeHandle<Object> CallInterpreter(Isolate* isolate,
Handle<JSFunction> function);
template <class... A>
static MaybeHandle<Object> CallInterpreter(Isolate* isolate,
Handle<JSFunction> function,
A... args) {
Handle<Object> argv[] = {args...};
return Execution::Call(isolate, function,
isolate->factory()->undefined_value(), sizeof...(args),
argv);
}
template <class... A>
class InterpreterCallable {
public:
InterpreterCallable(Isolate* isolate, Handle<JSFunction> function)
: isolate_(isolate), function_(function) {}
virtual ~InterpreterCallable() {}
MaybeHandle<Object> operator()(A... args) {
return CallInterpreter(isolate_, function_, args...);
}
FeedbackVector* vector() const { return function_->feedback_vector(); }
private:
Isolate* isolate_;
Handle<JSFunction> function_;
};
class InterpreterTester {
public:
InterpreterTester(Isolate* isolate, const char* source,
MaybeHandle<BytecodeArray> bytecode,
MaybeHandle<FeedbackMetadata> feedback_metadata,
const char* filter);
InterpreterTester(Isolate* isolate, Handle<BytecodeArray> bytecode,
MaybeHandle<FeedbackMetadata> feedback_metadata =
MaybeHandle<FeedbackMetadata>(),
const char* filter = kFunctionName);
InterpreterTester(Isolate* isolate, const char* source,
const char* filter = kFunctionName);
virtual ~InterpreterTester();
template <class... A>
InterpreterCallable<A...> GetCallable() {
return InterpreterCallable<A...>(isolate_, GetBytecodeFunction<A...>());
}
Local<Message> CheckThrowsReturnMessage();
static Handle<Object> NewObject(const char* script);
static Handle<String> GetName(Isolate* isolate, const char* name);
static std::string SourceForBody(const char* body);
static std::string function_name();
static const char kFunctionName[];
// Expose raw RegisterList construction to tests.
static RegisterList NewRegisterList(int first_reg_index, int register_count) {
return RegisterList(first_reg_index, register_count);
}
private:
Isolate* isolate_;
const char* source_;
MaybeHandle<BytecodeArray> bytecode_;
MaybeHandle<FeedbackMetadata> feedback_metadata_;
template <class... A>
Handle<JSFunction> GetBytecodeFunction() {
Handle<JSFunction> function;
if (source_) {
CompileRun(source_);
v8::Local<v8::Context> context =
v8::Isolate::GetCurrent()->GetCurrentContext();
Local<Function> api_function =
Local<Function>::Cast(CcTest::global()
->Get(context, v8_str(kFunctionName))
.ToLocalChecked());
function = Handle<JSFunction>::cast(v8::Utils::OpenHandle(*api_function));
} else {
int arg_count = sizeof...(A);
std::string source("(function " + function_name() + "(");
for (int i = 0; i < arg_count; i++) {
source += i == 0 ? "a" : ", a";
}
source += "){})";
function = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
*v8::Local<v8::Function>::Cast(CompileRun(source.c_str()))));
function->set_code(*BUILTIN_CODE(isolate_, InterpreterEntryTrampoline));
}
if (!bytecode_.is_null()) {
function->shared()->set_function_data(*bytecode_.ToHandleChecked());
}
if (!feedback_metadata_.is_null()) {
function->set_feedback_cell(isolate_->heap()->many_closures_cell());
// Set the raw feedback metadata to circumvent checks that we are not
// overwriting existing metadata.
function->shared()->set_raw_outer_scope_info_or_feedback_metadata(
*feedback_metadata_.ToHandleChecked());
JSFunction::EnsureFeedbackVector(function);
}
return function;
}
DISALLOW_COPY_AND_ASSIGN(InterpreterTester);
};
} // namespace interpreter
} // namespace internal
} // namespace v8
#endif // V8_TEST_CCTEST_INTERPRETER_INTERPRETER_TESTER_H_
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