| // 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. |
| |
| #include "src/v8.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" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class InterpreterCallable { |
| public: |
| InterpreterCallable(Isolate* isolate, Handle<JSFunction> function) |
| : isolate_(isolate), function_(function) {} |
| virtual ~InterpreterCallable() {} |
| |
| MaybeHandle<Object> operator()() { |
| return Execution::Call(isolate_, function_, |
| isolate_->factory()->undefined_value(), 0, nullptr, |
| false); |
| } |
| |
| private: |
| Isolate* isolate_; |
| Handle<JSFunction> function_; |
| }; |
| |
| class InterpreterTester { |
| public: |
| InterpreterTester(Isolate* isolate, Handle<BytecodeArray> bytecode) |
| : isolate_(isolate), function_(GetBytecodeFunction(isolate, bytecode)) { |
| i::FLAG_ignition = true; |
| Handle<FixedArray> empty_array = isolate->factory()->empty_fixed_array(); |
| Handle<FixedArray> interpreter_table = |
| isolate->factory()->interpreter_table(); |
| if (interpreter_table.is_identical_to(empty_array)) { |
| // Ensure handler table is generated. |
| isolate->interpreter()->Initialize(true); |
| } |
| } |
| virtual ~InterpreterTester() {} |
| |
| InterpreterCallable GetCallable() { |
| return InterpreterCallable(isolate_, function_); |
| } |
| |
| private: |
| Isolate* isolate_; |
| Handle<JSFunction> function_; |
| |
| static Handle<JSFunction> GetBytecodeFunction( |
| Isolate* isolate, Handle<BytecodeArray> bytecode_array) { |
| Handle<JSFunction> function = v8::Utils::OpenHandle( |
| *v8::Handle<v8::Function>::Cast(CompileRun("(function(){})"))); |
| function->ReplaceCode(*isolate->builtins()->InterpreterEntryTrampoline()); |
| function->shared()->set_function_data(*bytecode_array); |
| return function; |
| } |
| |
| DISALLOW_COPY_AND_ASSIGN(InterpreterTester); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| using namespace v8::internal; |
| using namespace v8::internal::interpreter; |
| |
| TEST(TestInterpreterReturn) { |
| InitializedHandleScope handles; |
| Handle<Object> undefined_value = |
| handles.main_isolate()->factory()->undefined_value(); |
| |
| BytecodeArrayBuilder builder(handles.main_isolate()); |
| // TODO(rmcilroy) set to 0 once BytecodeArray update to allow zero size |
| // register file. |
| builder.set_locals_count(1); |
| builder.Return(); |
| Handle<BytecodeArray> bytecode_array = builder.ToBytecodeArray(); |
| |
| InterpreterTester tester(handles.main_isolate(), bytecode_array); |
| InterpreterCallable callable(tester.GetCallable()); |
| Handle<Object> return_val = callable().ToHandleChecked(); |
| CHECK(return_val.is_identical_to(undefined_value)); |
| } |