6d11bcda29
Users of padded objects must know the actual object size for implementing custom finalizers. Bug: chromium:1056170 Change-Id: I0ddf9066cfece0a8d18a9e6fd985d09449eea92a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2644941 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Omer Katz <omerkatz@chromium.org> Cr-Commit-Position: refs/heads/master@{#72269}
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
// Copyright 2020 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 "include/cppgc/object-size-trait.h"
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#include "include/cppgc/allocation.h"
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#include "include/cppgc/garbage-collected.h"
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#include "src/heap/cppgc/heap.h"
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#include "test/unittests/heap/cppgc/tests.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace cppgc {
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namespace internal {
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namespace {
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class ObjectSizeTraitTest : public testing::TestWithHeap {};
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class GCed : public GarbageCollected<GCed> {
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public:
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void Trace(Visitor*) const {}
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};
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class NotGCed {};
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class Mixin : public GarbageCollectedMixin {};
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class UnmanagedMixinWithDouble {
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protected:
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virtual void ForceVTable() {}
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};
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class GCedWithMixin : public GarbageCollected<GCedWithMixin>,
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public UnmanagedMixinWithDouble,
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public Mixin {};
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} // namespace
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TEST_F(ObjectSizeTraitTest, GarbageCollected) {
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auto* obj = cppgc::MakeGarbageCollected<GCed>(GetAllocationHandle());
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EXPECT_GE(subtle::ObjectSizeTrait<GCed>::GetSize(*obj), sizeof(GCed));
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}
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TEST_F(ObjectSizeTraitTest, GarbageCollectedMixin) {
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auto* obj = cppgc::MakeGarbageCollected<GCedWithMixin>(GetAllocationHandle());
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Mixin& mixin = static_cast<Mixin&>(*obj);
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EXPECT_NE(static_cast<void*>(&mixin), obj);
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EXPECT_GE(subtle::ObjectSizeTrait<Mixin>::GetSize(mixin),
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sizeof(GCedWithMixin));
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}
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} // namespace internal
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} // namespace cppgc
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