303 lines
14 KiB
Diff
303 lines
14 KiB
Diff
diff -up chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_embedder_graph_builder.cc.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_embedder_graph_builder.cc
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--- chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_embedder_graph_builder.cc.v8-tracedreference-fix 2019-10-21 15:06:42.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_embedder_graph_builder.cc 2019-10-23 14:30:25.679541652 -0400
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@@ -173,8 +173,9 @@ class GC_PLUGIN_IGNORE(
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uint16_t class_id) override;
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// v8::EmbedderHeapTracer::TracedGlobalHandleVisitor override.
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- void VisitTracedGlobalHandle(
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- const v8::TracedGlobal<v8::Value>& value) override;
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+ void VisitTracedReference(
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+ const v8::TracedReference<v8::Value>& value) override;
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+ void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>&) override;
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// Visitor overrides.
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void VisitRoot(void*, TraceDescriptor, const base::Location&) final;
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@@ -508,8 +509,8 @@ void V8EmbedderGraphBuilder::VisitPersis
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}
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}
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-void V8EmbedderGraphBuilder::VisitTracedGlobalHandle(
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- const v8::TracedGlobal<v8::Value>& value) {
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+void V8EmbedderGraphBuilder::VisitTracedReference(
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+ const v8::TracedReference<v8::Value>& value) {
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const uint16_t class_id = value.WrapperClassId();
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if (class_id != WrapperTypeInfo::kNodeClassId &&
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class_id != WrapperTypeInfo::kObjectClassId)
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@@ -517,6 +518,11 @@ void V8EmbedderGraphBuilder::VisitTraced
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VisitPersistentHandleInternal(value.As<v8::Object>().Get(isolate_), class_id);
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}
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+void V8EmbedderGraphBuilder::VisitTracedGlobalHandle(
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+ const v8::TracedGlobal<v8::Value>&) {
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+ CHECK(false) << "Blink does not use v8::TracedGlobal.";
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+}
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+
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void V8EmbedderGraphBuilder::VisitPersistentHandle(
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v8::Persistent<v8::Value>* value,
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uint16_t class_id) {
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_gc_controller.cc.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_gc_controller.cc
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--- chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_gc_controller.cc.v8-tracedreference-fix 2019-10-21 15:06:42.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/bindings/core/v8/v8_gc_controller.cc 2019-10-23 14:30:25.683541568 -0400
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@@ -260,7 +260,11 @@ class DOMWrapperForwardingVisitor final
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VisitHandle(value, class_id);
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}
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- void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>& value) final {
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+ void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>&) final {
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+ CHECK(false) << "Blink does not use v8::TracedGlobal.";
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+ }
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+
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+ void VisitTracedReference(const v8::TracedReference<v8::Value>& value) final {
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VisitHandle(&value, value.WrapperClassId());
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}
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/dom_data_store.h.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/dom_data_store.h
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/dom_data_store.h.v8-tracedreference-fix 2019-10-21 15:06:44.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/dom_data_store.h 2019-10-23 14:30:25.685541526 -0400
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@@ -229,6 +229,11 @@ class DOMDataStore {
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DOMWorldWrapperReference(v8::Isolate* isolate, v8::Local<v8::Object> handle)
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: TraceWrapperV8Reference(isolate, handle) {}
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+ ~DOMWorldWrapperReference() {
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+ // Destruction of a reference should clear it immediately.
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+ Clear();
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+ }
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+
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// Move support without write barrier.
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DOMWorldWrapperReference(DOMWorldWrapperReference&& other)
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: TraceWrapperV8Reference() {
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/script_wrappable.h.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/script_wrappable.h
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/script_wrappable.h.v8-tracedreference-fix 2019-10-21 15:06:44.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/script_wrappable.h 2019-10-23 14:30:25.687541484 -0400
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@@ -161,6 +161,11 @@ class PLATFORM_EXPORT ScriptWrappable
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return main_world_wrapper_.NewLocal(isolate);
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}
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+ static_assert(
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+ std::is_trivially_destructible<
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+ TraceWrapperV8Reference<v8::Object>>::value,
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+ "TraceWrapperV8Reference<v8::Object> should be trivially destructible.");
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+
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TraceWrapperV8Reference<v8::Object> main_world_wrapper_;
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DISALLOW_COPY_AND_ASSIGN(ScriptWrappable);
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/trace_wrapper_v8_reference.h.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/trace_wrapper_v8_reference.h
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/trace_wrapper_v8_reference.h.v8-tracedreference-fix 2019-10-21 15:06:44.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/trace_wrapper_v8_reference.h 2019-10-23 14:30:25.688541463 -0400
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@@ -11,15 +11,6 @@
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#include "third_party/blink/renderer/platform/heap/unified_heap_marking_visitor.h"
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#include "v8/include/v8.h"
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-namespace v8 {
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-
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-template <typename T>
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-struct TracedGlobalTrait<v8::TracedGlobal<T>> {
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- static constexpr bool kRequiresExplicitDestruction = false;
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-};
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-
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-} // namespace v8
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-
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namespace blink {
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/**
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@@ -50,8 +41,8 @@ class TraceWrapperV8Reference {
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bool IsEmpty() const { return handle_.IsEmpty(); }
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void Clear() { handle_.Reset(); }
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- ALWAYS_INLINE const v8::TracedGlobal<T>& Get() const { return handle_; }
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- ALWAYS_INLINE v8::TracedGlobal<T>& Get() { return handle_; }
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+ ALWAYS_INLINE const v8::TracedReference<T>& Get() const { return handle_; }
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+ ALWAYS_INLINE v8::TracedReference<T>& Get() { return handle_; }
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template <typename S>
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const TraceWrapperV8Reference<S>& Cast() const {
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@@ -124,7 +115,7 @@ class TraceWrapperV8Reference {
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UnifiedHeapMarkingVisitor::WriteBarrier(UnsafeCast<v8::Value>());
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}
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- v8::TracedGlobal<T> handle_;
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+ v8::TracedReference<T> handle_;
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};
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} // namespace blink
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/wrapper_type_info.h.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/wrapper_type_info.h
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/wrapper_type_info.h.v8-tracedreference-fix 2019-10-21 15:06:44.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/bindings/wrapper_type_info.h 2019-10-23 14:30:25.689541442 -0400
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@@ -122,7 +122,7 @@ struct WrapperTypeInfo {
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wrapper->SetWrapperClassId(wrapper_class_id);
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}
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- void ConfigureWrapper(v8::TracedGlobal<v8::Object>* wrapper) const {
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+ void ConfigureWrapper(v8::TracedReference<v8::Object>* wrapper) const {
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wrapper->SetWrapperClassId(wrapper_class_id);
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}
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@@ -177,7 +177,7 @@ inline T* GetInternalField(const v8::Per
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}
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template <typename T, int offset>
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-inline T* GetInternalField(const v8::TracedGlobal<v8::Object>& global) {
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+inline T* GetInternalField(const v8::TracedReference<v8::Object>& global) {
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DCHECK_LT(offset, v8::Object::InternalFieldCount(global));
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return reinterpret_cast<T*>(
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v8::Object::GetAlignedPointerFromInternalField(global, offset));
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@@ -198,7 +198,7 @@ inline ScriptWrappable* ToScriptWrappabl
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}
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inline ScriptWrappable* ToScriptWrappable(
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- const v8::TracedGlobal<v8::Object>& wrapper) {
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+ const v8::TracedReference<v8::Object>& wrapper) {
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return GetInternalField<ScriptWrappable, kV8DOMWrapperObjectIndex>(wrapper);
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}
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@@ -219,7 +219,8 @@ inline void* ToUntypedWrappable(const v8
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return GetInternalField<void, kV8DOMWrapperObjectIndex>(wrapper);
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}
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-inline void* ToUntypedWrappable(const v8::TracedGlobal<v8::Object>& wrapper) {
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+inline void* ToUntypedWrappable(
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+ const v8::TracedReference<v8::Object>& wrapper) {
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return GetInternalField<void, kV8DOMWrapperObjectIndex>(wrapper);
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}
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@@ -233,7 +234,7 @@ inline const WrapperTypeInfo* ToWrapperT
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}
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inline const WrapperTypeInfo* ToWrapperTypeInfo(
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- const v8::TracedGlobal<v8::Object>& wrapper) {
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+ const v8::TracedReference<v8::Object>& wrapper) {
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return GetInternalField<WrapperTypeInfo, kV8DOMWrapperTypeIndex>(wrapper);
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}
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/thread_state.cc.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/thread_state.cc
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/thread_state.cc.v8-tracedreference-fix 2019-10-21 15:06:45.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/thread_state.cc 2019-10-23 14:30:25.693541359 -0400
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@@ -1451,11 +1451,15 @@ class ClearReferencesInDeadObjectsVisito
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value->Reset();
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}
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- void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>& value) final {
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+ void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>&) final {
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+ CHECK(false) << "Blink does not use v8::TracedGlobal.";
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+ }
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+
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+ void VisitTracedReference(const v8::TracedReference<v8::Value>& value) final {
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// TODO(mlippautz): Avoid const_cast after changing the API to allow
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- // modificaton of the TracedGlobal handle.
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- if (InDeadObject(&const_cast<v8::TracedGlobal<v8::Value>&>(value)))
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- const_cast<v8::TracedGlobal<v8::Value>&>(value).Reset();
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+ // modificaton of the handle.
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+ if (InDeadObject(&const_cast<v8::TracedReference<v8::Value>&>(value)))
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+ const_cast<v8::TracedReference<v8::Value>&>(value).Reset();
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}
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private:
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@@ -1584,11 +1588,15 @@ class UnpoisonHandlesVisitor final
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VisitSlot(value, sizeof(v8::Persistent<v8::Value>));
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}
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- void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>& value) final {
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+ void VisitTracedGlobalHandle(const v8::TracedGlobal<v8::Value>&) final {
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+ CHECK(false) << "Blink does not use v8::TracedGlobal.";
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+ }
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+
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+ void VisitTracedReference(const v8::TracedReference<v8::Value>& value) final {
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// TODO(mlippautz): Avoid const_cast after changing the API to allow
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- // modificaton of the TracedGlobal handle.
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- VisitSlot(&const_cast<v8::TracedGlobal<v8::Value>&>(value),
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- sizeof(v8::TracedGlobal<v8::Value>));
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+ // modificaton of the handle.
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+ VisitSlot(&const_cast<v8::TracedReference<v8::Value>&>(value),
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+ sizeof(v8::TracedReference<v8::Value>));
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}
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private:
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.cc.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.cc
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.cc.v8-tracedreference-fix 2019-10-21 15:06:45.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.cc 2019-10-23 14:32:34.722840885 -0400
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@@ -147,16 +147,19 @@ bool UnifiedHeapController::IsTracingDon
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return is_tracing_done_;
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}
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-bool UnifiedHeapController::IsRootForNonTracingGCInternal(
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- const v8::TracedGlobal<v8::Value>& handle) {
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+namespace {
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+
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+bool IsRootForNonTracingGCInternal(
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+ const v8::TracedReference<v8::Value>& handle) {
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const uint16_t class_id = handle.WrapperClassId();
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- // Stand-alone TracedGlobal reference or kCustomWrappableId. Keep as root as
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+ // Stand-alone reference or kCustomWrappableId. Keep as root as
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// we don't know better.
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if (class_id != WrapperTypeInfo::kNodeClassId &&
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class_id != WrapperTypeInfo::kObjectClassId)
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return true;
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- const v8::TracedGlobal<v8::Object>& traced = handle.As<v8::Object>();
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+ const v8::TracedReference<v8::Object>& traced =
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+ handle.template As<v8::Object>();
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if (ToWrapperTypeInfo(traced)->IsActiveScriptWrappable() &&
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ToScriptWrappable(traced)->HasPendingActivity()) {
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return true;
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@@ -169,8 +172,10 @@ bool UnifiedHeapController::IsRootForNon
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return false;
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}
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+} // namespace
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+
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void UnifiedHeapController::ResetHandleInNonTracingGC(
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- const v8::TracedGlobal<v8::Value>& handle) {
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+ const v8::TracedReference<v8::Value>& handle) {
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const uint16_t class_id = handle.WrapperClassId();
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// Only consider handles that have not been treated as roots, see
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// IsRootForNonTracingGCInternal.
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@@ -178,15 +183,21 @@ void UnifiedHeapController::ResetHandleI
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class_id != WrapperTypeInfo::kObjectClassId)
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return;
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- const v8::TracedGlobal<v8::Object>& traced = handle.As<v8::Object>();
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+ const v8::TracedReference<v8::Object>& traced = handle.As<v8::Object>();
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ToScriptWrappable(traced)->UnsetWrapperIfAny();
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}
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bool UnifiedHeapController::IsRootForNonTracingGC(
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- const v8::TracedGlobal<v8::Value>& handle) {
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+ const v8::TracedReference<v8::Value>& handle) {
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return IsRootForNonTracingGCInternal(handle);
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}
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+bool UnifiedHeapController::IsRootForNonTracingGC(
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+ const v8::TracedGlobal<v8::Value>& handle) {
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+ CHECK(false) << "Blink does not use v8::TracedGlobal.";
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+ return false;
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+}
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+
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void UnifiedHeapController::ReportBufferedAllocatedSizeIfPossible() {
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DCHECK(base::FeatureList::IsEnabled(
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blink::features::kBlinkHeapUnifiedGCScheduling));
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diff -up chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.h.v8-tracedreference-fix chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.h
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--- chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.h.v8-tracedreference-fix 2019-10-21 15:06:45.000000000 -0400
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+++ chromium-78.0.3904.70/third_party/blink/renderer/platform/heap/unified_heap_controller.h 2019-10-23 14:30:25.695541317 -0400
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@@ -45,8 +45,9 @@ class PLATFORM_EXPORT UnifiedHeapControl
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void RegisterV8References(const std::vector<std::pair<void*, void*>>&) final;
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bool AdvanceTracing(double) final;
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bool IsTracingDone() final;
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+ bool IsRootForNonTracingGC(const v8::TracedReference<v8::Value>&) final;
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bool IsRootForNonTracingGC(const v8::TracedGlobal<v8::Value>&) final;
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- void ResetHandleInNonTracingGC(const v8::TracedGlobal<v8::Value>&) final;
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+ void ResetHandleInNonTracingGC(const v8::TracedReference<v8::Value>&) final;
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ThreadState* thread_state() const { return thread_state_; }
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@@ -59,9 +60,6 @@ class PLATFORM_EXPORT UnifiedHeapControl
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void DecreaseAllocatedSpace(size_t) final {}
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private:
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- static bool IsRootForNonTracingGCInternal(
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- const v8::TracedGlobal<v8::Value>& handle);
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-
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void ReportBufferedAllocatedSizeIfPossible();
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ThreadState* const thread_state_;
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