Introduce a microtask suppression scope and move microtask methods to isolate

src/api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #include <cmath>  // For isnan.
 #include "../include/v8-debug.h"
 #include "../include/v8-profiler.h"
@@ skipping 6437 matching lines @@
 
 
 void V8::RemoveMemoryAllocationCallback(MemoryAllocationCallback callback) {
   i::Isolate* isolate = i::Isolate::Current();
   isolate->memory_allocator()->RemoveMemoryAllocationCallback(
       callback);
 }
 
 
 void V8::RunMicrotasks(Isolate* isolate) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  i::HandleScope scope(i_isolate);
-  i::V8::RunMicrotasks(i_isolate);
+  isolate->RunMicrotasks();
 }
 
 
 void V8::EnqueueMicrotask(Isolate* isolate, Handle<Function> microtask) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  ENTER_V8(i_isolate);
-  i::Execution::EnqueueMicrotask(i_isolate, Utils::OpenHandle(*microtask));
+  isolate->EnqueueMicrotask(microtask);
 }
 
 
 void V8::SetAutorunMicrotasks(Isolate* isolate, bool autorun) {
-  reinterpret_cast<i::Isolate*>(isolate)->set_autorun_microtasks(autorun);
+  isolate->SetAutorunMicrotasks(autorun);
 }
 
 
 void V8::TerminateExecution(Isolate* isolate) {
   reinterpret_cast<i::Isolate*>(isolate)->stack_guard()->TerminateExecution();
 }
 
 
 bool V8::IsExecutionTerminating(Isolate* isolate) {
   i::Isolate* i_isolate = isolate != NULL ?
@@ skipping 103 matching lines @@
       new i::NoThrowOnJavascriptExecution(i_isolate));
 }
 
 
 Isolate::AllowJavascriptExecutionScope::~AllowJavascriptExecutionScope() {
   delete reinterpret_cast<i::AllowJavascriptExecution*>(internal_assert_);
   delete reinterpret_cast<i::NoThrowOnJavascriptExecution*>(internal_throws_);
 }
 
 
+Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope(
+    Isolate* isolate)
+    : isolate_(reinterpret_cast<i::Isolate*>(isolate)) {
+  isolate_->handle_scope_implementer()->IncrementCallDepth();
+}
+
+
+Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope() {
+  isolate_->handle_scope_implementer()->DecrementCallDepth();
+}
+
+
 void Isolate::GetHeapStatistics(HeapStatistics* heap_statistics) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   if (!isolate->IsInitialized()) {
     heap_statistics->total_heap_size_ = 0;
     heap_statistics->total_heap_size_executable_ = 0;
     heap_statistics->total_physical_size_ = 0;
     heap_statistics->used_heap_size_ = 0;
     heap_statistics->heap_size_limit_ = 0;
     return;
   }
@@ skipping 19 matching lines @@
   isolate->AddCallCompletedCallback(callback);
 }
 
 
 void Isolate::RemoveCallCompletedCallback(CallCompletedCallback callback) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   isolate->RemoveCallCompletedCallback(callback);
 }
 
 
+void Isolate::RunMicrotasks() {
+  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this);
+  i::HandleScope scope(i_isolate);
+  i_isolate->RunMicrotasks();
+}
+
+
+void Isolate::EnqueueMicrotask(Handle<Function> microtask) {
+  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this);
+  ENTER_V8(i_isolate);
+  i::Execution::EnqueueMicrotask(i_isolate, Utils::OpenHandle(*microtask));
+}
+
+
+void Isolate::SetAutorunMicrotasks(bool autorun) {
+  reinterpret_cast<i::Isolate*>(this)->set_autorun_microtasks(autorun);
+}
+
+
 String::Utf8Value::Utf8Value(v8::Handle<v8::Value> obj)
     : str_(NULL), length_(0) {
   i::Isolate* isolate = i::Isolate::Current();
   if (obj.IsEmpty()) return;
   ENTER_V8(isolate);
   i::HandleScope scope(isolate);
   TryCatch try_catch;
   Handle<String> str = obj->ToString();
   if (str.IsEmpty()) return;
   i::Handle<i::String> i_str = Utils::OpenHandle(*str);
@@ skipping 922 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal