3e546664e6
Once read-only space is not a Heap space it makes little sense to have it in the Heap class. Bug: v8:7464 Change-Id: I2230ce7cbf1cec3c83065c91bc14a9c23f72478b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1688841 Reviewed-by: Dan Elphick <delphick@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Maciej Goszczycki <goszczycki@google.com> Cr-Commit-Position: refs/heads/master@{#62540}
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
// Copyright 2019 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/v8.h"
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#include "src/api/api-inl.h"
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#include "src/execution/isolate.h"
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#include "src/heap/combined-heap.h"
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#include "src/heap/heap.h"
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#include "src/heap/read-only-heap.h"
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#include "src/objects/heap-object.h"
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#include "src/objects/objects.h"
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#include "src/roots/roots-inl.h"
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#include "test/cctest/cctest.h"
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namespace v8 {
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namespace internal {
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namespace heap {
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TEST(HeapObjectIteratorNullPastEnd) {
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HeapObjectIterator iterator(CcTest::heap());
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while (!iterator.Next().is_null()) {
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}
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for (int i = 0; i < 20; i++) {
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CHECK(iterator.Next().is_null());
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}
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}
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TEST(ReadOnlyHeapObjectIteratorNullPastEnd) {
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ReadOnlyHeapObjectIterator iterator(CcTest::read_only_heap());
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while (!iterator.Next().is_null()) {
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}
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for (int i = 0; i < 20; i++) {
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CHECK(iterator.Next().is_null());
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}
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}
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TEST(CombinedHeapObjectIteratorNullPastEnd) {
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CombinedHeapObjectIterator iterator(CcTest::heap());
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while (!iterator.Next().is_null()) {
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}
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for (int i = 0; i < 20; i++) {
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CHECK(iterator.Next().is_null());
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}
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}
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namespace {
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// An arbitrary object guaranteed to live on the non-read-only heap.
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Object CreateWritableObject() {
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return *v8::Utils::OpenHandle(*v8::Object::New(CcTest::isolate()));
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}
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} // namespace
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TEST(ReadOnlyHeapObjectIterator) {
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CcTest::InitializeVM();
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HandleScope handle_scope(CcTest::i_isolate());
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const Object sample_object = CreateWritableObject();
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ReadOnlyHeapObjectIterator iterator(CcTest::read_only_heap());
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for (HeapObject obj = iterator.Next(); !obj.is_null();
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obj = iterator.Next()) {
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CHECK(ReadOnlyHeap::Contains(obj));
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CHECK(!CcTest::heap()->Contains(obj));
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CHECK_NE(sample_object, obj);
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}
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}
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TEST(HeapObjectIterator) {
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CcTest::InitializeVM();
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HandleScope handle_scope(CcTest::i_isolate());
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const Object sample_object = CreateWritableObject();
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HeapObjectIterator iterator(CcTest::heap());
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bool seen_sample_object = false;
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for (HeapObject obj = iterator.Next(); !obj.is_null();
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obj = iterator.Next()) {
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CHECK(!ReadOnlyHeap::Contains(obj));
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CHECK(CcTest::heap()->Contains(obj));
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if (sample_object == obj) seen_sample_object = true;
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}
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CHECK(seen_sample_object);
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}
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TEST(CombinedHeapObjectIterator) {
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CcTest::InitializeVM();
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HandleScope handle_scope(CcTest::i_isolate());
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const Object sample_object = CreateWritableObject();
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CombinedHeapObjectIterator iterator(CcTest::heap());
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bool seen_sample_object = false;
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for (HeapObject obj = iterator.Next(); !obj.is_null();
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obj = iterator.Next()) {
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CHECK(IsValidHeapObject(CcTest::heap(), obj));
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if (sample_object == obj) seen_sample_object = true;
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}
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CHECK(seen_sample_object);
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}
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TEST(PagedSpaceIterator) {
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Heap* const heap = CcTest::heap();
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PagedSpaceIterator iterator(heap);
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CHECK_EQ(iterator.Next(), reinterpret_cast<PagedSpace*>(heap->old_space()));
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CHECK_EQ(iterator.Next(), reinterpret_cast<PagedSpace*>(heap->code_space()));
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CHECK_EQ(iterator.Next(), reinterpret_cast<PagedSpace*>(heap->map_space()));
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for (int i = 0; i < 20; i++) {
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CHECK_NULL(iterator.Next());
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}
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}
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TEST(SpaceIterator) {
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auto* const read_only_space = CcTest::read_only_heap()->read_only_space();
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for (SpaceIterator it(CcTest::heap()); it.HasNext();) {
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CHECK_NE(it.Next(), reinterpret_cast<Space*>(read_only_space));
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}
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}
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} // namespace heap
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} // namespace internal
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} // namespace v8
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