deps: patch V8 to 9.5.172.21

targos · targos · commit bf82dcd5bad2 · 2021-10-14T16:46:03.000+02:00
Refs: v8/v8@9.5.172.19...9.5.172.21 PR-URL: #40432 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 9
 #define V8_MINOR_VERSION 5
 #define V8_BUILD_NUMBER 172
-#define V8_PATCH_LEVEL 19
+#define V8_PATCH_LEVEL 21
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
diff --git a/deps/v8/src/api/api.h b/deps/v8/src/api/api.h
@@ -42,7 +42,7 @@ namespace debug {
 class AccessorPair;
 class GeneratorObject;
 class Script;
-class WeakMap;
+class EphemeronTable;
 }  // namespace debug
 
 // Constants used in the implementation of the API.  The most natural thing
@@ -135,7 +135,7 @@ class RegisteredExtension {
   V(Proxy, JSProxy)                            \
   V(debug::GeneratorObject, JSGeneratorObject) \
   V(debug::Script, Script)                     \
-  V(debug::WeakMap, JSWeakMap)                 \
+  V(debug::EphemeronTable, EphemeronHashTable) \
   V(debug::AccessorPair, AccessorPair)         \
   V(Promise, JSPromise)                        \
   V(Primitive, Object)                         \
diff --git a/deps/v8/src/debug/debug-interface.cc b/deps/v8/src/debug/debug-interface.cc
@@ -1177,61 +1177,43 @@ TypeProfile::ScriptData TypeProfile::GetScriptData(size_t i) const {
   return ScriptData(i, type_profile_);
 }
 
-v8::MaybeLocal<v8::Value> WeakMap::Get(v8::Local<v8::Context> context,
-                                       v8::Local<v8::Value> key) {
-  PREPARE_FOR_EXECUTION(context, WeakMap, Get, Value);
-  auto self = Utils::OpenHandle(this);
-  Local<Value> result;
-  i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)};
-  has_pending_exception =
-      !ToLocal<Value>(i::Execution::CallBuiltin(isolate, isolate->weakmap_get(),
-                                                self, arraysize(argv), argv),
-                      &result);
-  RETURN_ON_FAILED_EXECUTION(Value);
-  RETURN_ESCAPED(result);
+MaybeLocal<v8::Value> EphemeronTable::Get(v8::Isolate* isolate,
+                                          v8::Local<v8::Value> key) {
+  i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate);
+  auto self = i::Handle<i::EphemeronHashTable>::cast(Utils::OpenHandle(this));
+  i::Handle<i::Object> internal_key = Utils::OpenHandle(*key);
+  DCHECK(internal_key->IsJSReceiver());
+
+  i::Handle<i::Object> value(self->Lookup(internal_key), internal_isolate);
+
+  if (value->IsTheHole()) return {};
+  return Utils::ToLocal(value);
 }
 
-v8::Maybe<bool> WeakMap::Delete(v8::Local<v8::Context> context,
-                                v8::Local<v8::Value> key) {
-  PREPARE_FOR_EXECUTION_WITH_CONTEXT(context, WeakMap, Delete, Nothing<bool>(),
-                                     InternalEscapableScope, false);
-  auto self = Utils::OpenHandle(this);
-  Local<Value> result;
-  i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)};
-  has_pending_exception = !ToLocal<Value>(
-      i::Execution::CallBuiltin(isolate, isolate->weakmap_delete(), self,
-                                arraysize(argv), argv),
-      &result);
-  RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool);
-  return Just(result->IsTrue());
-}
-
-v8::MaybeLocal<WeakMap> WeakMap::Set(v8::Local<v8::Context> context,
-                                     v8::Local<v8::Value> key,
-                                     v8::Local<v8::Value> value) {
-  PREPARE_FOR_EXECUTION(context, WeakMap, Set, WeakMap);
-  auto self = Utils::OpenHandle(this);
-  i::Handle<i::Object> result;
-  i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key),
-                                 Utils::OpenHandle(*value)};
-  has_pending_exception =
-      !i::Execution::CallBuiltin(isolate, isolate->weakmap_set(), self,
-                                 arraysize(argv), argv)
-           .ToHandle(&result);
-  RETURN_ON_FAILED_EXECUTION(WeakMap);
-  RETURN_ESCAPED(Local<WeakMap>::Cast(Utils::ToLocal(result)));
-}
-
-Local<WeakMap> WeakMap::New(v8::Isolate* isolate) {
+Local<EphemeronTable> EphemeronTable::Set(v8::Isolate* isolate,
+                                          v8::Local<v8::Value> key,
+                                          v8::Local<v8::Value> value) {
+  auto self = i::Handle<i::EphemeronHashTable>::cast(Utils::OpenHandle(this));
+  i::Handle<i::Object> internal_key = Utils::OpenHandle(*key);
+  i::Handle<i::Object> internal_value = Utils::OpenHandle(*value);
+  DCHECK(internal_key->IsJSReceiver());
+
+  i::Handle<i::EphemeronHashTable> result(
+      i::EphemeronHashTable::Put(self, internal_key, internal_value));
+
+  return ToApiHandle<EphemeronTable>(result);
+}
+
+Local<EphemeronTable> EphemeronTable::New(v8::Isolate* isolate) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  LOG_API(i_isolate, WeakMap, New);
   ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate);
-  i::Handle<i::JSWeakMap> obj = i_isolate->factory()->NewJSWeakMap();
-  return ToApiHandle<WeakMap>(obj);
+  i::Handle<i::EphemeronHashTable> table =
+      i::EphemeronHashTable::New(i_isolate, 0);
+  return ToApiHandle<EphemeronTable>(table);
 }
 
-WeakMap* WeakMap::Cast(v8::Value* value) {
-  return static_cast<WeakMap*>(value);
+EphemeronTable* EphemeronTable::Cast(v8::Value* value) {
+  return static_cast<EphemeronTable*>(value);
 }
 
 Local<Value> AccessorPair::getter() {
diff --git a/deps/v8/src/debug/debug-interface.h b/deps/v8/src/debug/debug-interface.h
@@ -570,19 +570,17 @@ class V8_NODISCARD DisableBreakScope {
   std::unique_ptr<i::DisableBreak> scope_;
 };
 
-class WeakMap : public v8::Object {
+class EphemeronTable : public v8::Object {
  public:
-  WeakMap() = delete;
+  EphemeronTable() = delete;
   V8_EXPORT_PRIVATE V8_WARN_UNUSED_RESULT v8::MaybeLocal<v8::Value> Get(
-      v8::Local<v8::Context> context, v8::Local<v8::Value> key);
-  V8_EXPORT_PRIVATE V8_WARN_UNUSED_RESULT v8::Maybe<bool> Delete(
-      v8::Local<v8::Context> context, v8::Local<v8::Value> key);
-  V8_EXPORT_PRIVATE V8_WARN_UNUSED_RESULT v8::MaybeLocal<WeakMap> Set(
-      v8::Local<v8::Context> context, v8::Local<v8::Value> key,
+      v8::Isolate* isolate, v8::Local<v8::Value> key);
+  V8_EXPORT_PRIVATE V8_WARN_UNUSED_RESULT v8::Local<EphemeronTable> Set(
+      v8::Isolate* isolate, v8::Local<v8::Value> key,
       v8::Local<v8::Value> value);
 
-  V8_EXPORT_PRIVATE static Local<WeakMap> New(v8::Isolate* isolate);
-  V8_INLINE static WeakMap* Cast(Value* obj);
+  V8_EXPORT_PRIVATE static Local<EphemeronTable> New(v8::Isolate* isolate);
+  V8_INLINE static EphemeronTable* Cast(Value* obj);
 };
 
 /**
diff --git a/deps/v8/src/inspector/inspected-context.cc b/deps/v8/src/inspector/inspected-context.cc
@@ -126,20 +126,23 @@ void InspectedContext::discardInjectedScript(int sessionId) {
 bool InspectedContext::addInternalObject(v8::Local<v8::Object> object,
                                          V8InternalValueType type) {
   if (m_internalObjects.IsEmpty()) {
-    m_internalObjects.Reset(isolate(), v8::debug::WeakMap::New(isolate()));
+    m_internalObjects.Reset(isolate(),
+                            v8::debug::EphemeronTable::New(isolate()));
   }
-  return !m_internalObjects.Get(isolate())
-              ->Set(m_context.Get(isolate()), object,
-                    v8::Integer::New(isolate(), static_cast<int>(type)))
-              .IsEmpty();
+  v8::Local<v8::debug::EphemeronTable> new_map =
+      m_internalObjects.Get(isolate())->Set(
+          isolate(), object,
+          v8::Integer::New(isolate(), static_cast<int>(type)));
+  m_internalObjects.Reset(isolate(), new_map);
+  return true;
 }
 
 V8InternalValueType InspectedContext::getInternalType(
     v8::Local<v8::Object> object) {
   if (m_internalObjects.IsEmpty()) return V8InternalValueType::kNone;
   v8::Local<v8::Value> typeValue;
   if (!m_internalObjects.Get(isolate())
-           ->Get(m_context.Get(isolate()), object)
+           ->Get(isolate(), object)
            .ToLocal(&typeValue) ||
       !typeValue->IsUint32()) {
     return V8InternalValueType::kNone;
diff --git a/deps/v8/src/inspector/inspected-context.h b/deps/v8/src/inspector/inspected-context.h
@@ -77,7 +77,7 @@ class InspectedContext {
   std::unordered_set<int> m_reportedSessionIds;
   std::unordered_map<int, std::unique_ptr<InjectedScript>> m_injectedScripts;
   WeakCallbackData* m_weakCallbackData;
-  v8::Global<v8::debug::WeakMap> m_internalObjects;
+  v8::Global<v8::debug::EphemeronTable> m_internalObjects;
 };
 
 }  // namespace v8_inspector
diff --git a/deps/v8/src/inspector/v8-inspector-impl.cc b/deps/v8/src/inspector/v8-inspector-impl.cc
@@ -486,19 +486,17 @@ bool V8InspectorImpl::associateExceptionData(v8::Local<v8::Context>,
   v8::Context::Scope contextScope(context);
   v8::HandleScope handles(m_isolate);
   if (m_exceptionMetaData.IsEmpty())
-    m_exceptionMetaData.Reset(m_isolate, v8::debug::WeakMap::New(m_isolate));
+    m_exceptionMetaData.Reset(m_isolate,
+                              v8::debug::EphemeronTable::New(m_isolate));
 
-  v8::Local<v8::debug::WeakMap> map = m_exceptionMetaData.Get(m_isolate);
-  v8::MaybeLocal<v8::Value> entry = map->Get(context, exception);
+  v8::Local<v8::debug::EphemeronTable> map = m_exceptionMetaData.Get(m_isolate);
+  v8::MaybeLocal<v8::Value> entry = map->Get(m_isolate, exception);
   v8::Local<v8::Object> object;
   if (entry.IsEmpty() || !entry.ToLocalChecked()->IsObject()) {
     object =
         v8::Object::New(m_isolate, v8::Null(m_isolate), nullptr, nullptr, 0);
-    v8::MaybeLocal<v8::debug::WeakMap> new_map =
-        map->Set(context, exception, object);
-    if (!new_map.IsEmpty()) {
-      m_exceptionMetaData.Reset(m_isolate, new_map.ToLocalChecked());
-    }
+    m_exceptionMetaData.Reset(m_isolate,
+                              map->Set(m_isolate, exception, object));
   } else {
     object = entry.ToLocalChecked().As<v8::Object>();
   }
@@ -518,8 +516,8 @@ v8::MaybeLocal<v8::Object> V8InspectorImpl::getAssociatedExceptionData(
       !exceptionMetaDataContext().ToLocal(&context)) {
     return v8::MaybeLocal<v8::Object>();
   }
-  v8::Local<v8::debug::WeakMap> map = m_exceptionMetaData.Get(m_isolate);
-  auto entry = map->Get(context, exception);
+  v8::Local<v8::debug::EphemeronTable> map = m_exceptionMetaData.Get(m_isolate);
+  auto entry = map->Get(m_isolate, exception);
   v8::Local<v8::Value> object;
   if (!entry.ToLocal(&object) || !object->IsObject())
     return v8::MaybeLocal<v8::Object>();
diff --git a/deps/v8/src/inspector/v8-inspector-impl.h b/deps/v8/src/inspector/v8-inspector-impl.h
@@ -56,7 +56,7 @@ class V8StackTraceImpl;
 
 class V8InspectorImpl : public V8Inspector {
  public:
-  V8InspectorImpl(v8::Isolate*, V8InspectorClient*);
+  V8_EXPORT_PRIVATE V8InspectorImpl(v8::Isolate*, V8InspectorClient*);
   ~V8InspectorImpl() override;
   V8InspectorImpl(const V8InspectorImpl&) = delete;
   V8InspectorImpl& operator=(const V8InspectorImpl&) = delete;
@@ -110,10 +110,9 @@ class V8InspectorImpl : public V8Inspector {
   void externalAsyncTaskStarted(const V8StackTraceId& parent) override;
   void externalAsyncTaskFinished(const V8StackTraceId& parent) override;
 
-  bool associateExceptionData(v8::Local<v8::Context>,
-                              v8::Local<v8::Value> exception,
-                              v8::Local<v8::Name> key,
-                              v8::Local<v8::Value> value) override;
+  V8_EXPORT_PRIVATE bool associateExceptionData(
+      v8::Local<v8::Context>, v8::Local<v8::Value> exception,
+      v8::Local<v8::Name> key, v8::Local<v8::Value> value) override;
 
   unsigned nextExceptionId() { return ++m_lastExceptionId; }
   void enableStackCapturingIfNeeded();
@@ -134,7 +133,7 @@ class V8InspectorImpl : public V8Inspector {
       int contextGroupId,
       const std::function<void(V8InspectorSessionImpl*)>& callback);
   int64_t generateUniqueId();
-  v8::MaybeLocal<v8::Object> getAssociatedExceptionData(
+  V8_EXPORT_PRIVATE v8::MaybeLocal<v8::Object> getAssociatedExceptionData(
       v8::Local<v8::Value> exception);
 
   class EvaluateScope {
@@ -160,7 +159,7 @@ class V8InspectorImpl : public V8Inspector {
   std::unique_ptr<V8Debugger> m_debugger;
   v8::Global<v8::Context> m_regexContext;
   v8::Global<v8::Context> m_exceptionMetaDataContext;
-  v8::Global<v8::debug::WeakMap> m_exceptionMetaData;
+  v8::Global<v8::debug::EphemeronTable> m_exceptionMetaData;
   int m_capturingStackTracesCount;
   unsigned m_lastExceptionId;
   int m_lastContextId;
diff --git a/deps/v8/src/interpreter/bytecode-generator.cc b/deps/v8/src/interpreter/bytecode-generator.cc
diff --git a/deps/v8/test/cctest/test-debug.cc b/deps/v8/test/cctest/test-debug.cc
diff --git a/deps/v8/test/cctest/test-inspector.cc b/deps/v8/test/cctest/test-inspector.cc
diff --git a/deps/v8/test/mjsunit/regress/regress-crbug-1251366.js b/deps/v8/test/mjsunit/regress/regress-crbug-1251366.js
