b3d793e48a
This is a convenience API that an embedder can use to do final checks on the return value. Note that this creates a new handle and thus defeats the performance optimization done for ReturnValue - an embedder should only use this in non-performance critical code paths. BUG= R=verwaest@chromium.org Review URL: https://codereview.chromium.org/1875263003 Cr-Commit-Position: refs/heads/master@{#35409}
41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/v8.h"
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#include "src/isolate.h"
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#include "src/profiler/cpu-profiler.h"
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#include "src/vm-state.h"
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#include "test/cctest/cctest.h"
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template <typename T>
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static void CheckReturnValue(const T& t, i::Address callback) {
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v8::ReturnValue<v8::Value> rv = t.GetReturnValue();
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i::Object** o = *reinterpret_cast<i::Object***>(&rv);
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CHECK_EQ(CcTest::isolate(), t.GetIsolate());
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CHECK_EQ(t.GetIsolate(), rv.GetIsolate());
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CHECK((*o)->IsTheHole() || (*o)->IsUndefined());
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// Verify reset
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bool is_runtime = (*o)->IsTheHole();
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if (is_runtime) {
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CHECK(rv.Get()->IsUndefined());
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} else {
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i::Handle<i::Object> v = v8::Utils::OpenHandle(*rv.Get());
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CHECK_EQ(*v, *o);
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}
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rv.Set(true);
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CHECK(!(*o)->IsTheHole() && !(*o)->IsUndefined());
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rv.Set(v8::Local<v8::Object>());
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CHECK((*o)->IsTheHole() || (*o)->IsUndefined());
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CHECK_EQ(is_runtime, (*o)->IsTheHole());
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i::Isolate* isolate = reinterpret_cast<i::Isolate*>(t.GetIsolate());
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// If CPU profiler is active check that when API callback is invoked
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// VMState is set to EXTERNAL.
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if (isolate->cpu_profiler()->is_profiling()) {
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CHECK_EQ(v8::EXTERNAL, isolate->current_vm_state());
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CHECK(isolate->external_callback_scope());
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CHECK_EQ(callback, isolate->external_callback_scope()->callback());
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}
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}
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