Merge changes up to V8 version 2.1.3 into the partial snapshots

src/api.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 16 matching lines @@
 
 #include "v8.h"
 
 #include "api.h"
 #include "arguments.h"
 #include "bootstrapper.h"
 #include "compiler.h"
 #include "debug.h"
 #include "execution.h"
 #include "global-handles.h"
-#include "globals.h"
+#include "messages.h"
 #include "platform.h"
 #include "serialize.h"
 #include "snapshot.h"
+#include "top.h"
 #include "utils.h"
 #include "v8threads.h"
 #include "version.h"
 
 
 #define LOG_API(expr) LOG(ApiEntryCall(expr))
 
 #ifdef ENABLE_HEAP_PROTECTION
 #define ENTER_V8 i::VMState __state__(i::OTHER)
 #define LEAVE_V8 i::VMState __state__(i::EXTERNAL)
@@ skipping 381 matching lines @@
 bool V8::IsGlobalWeak(i::Object** obj) {
   LOG_API("IsGlobalWeak");
   if (!i::V8::IsRunning()) return false;
   return i::GlobalHandles::IsWeak(obj);
 }
 
 
 void V8::DisposeGlobal(i::Object** obj) {
   LOG_API("DisposeGlobal");
   if (!i::V8::IsRunning()) return;
-  if ((*obj)->IsGlobalContext()) i::Heap::NotifyContextDisposed();
   i::GlobalHandles::Destroy(obj);
 }
 
 // --- H a n d l e s ---
 
 
 HandleScope::HandleScope() : is_closed_(false) {
   API_ENTRY_CHECK("HandleScope::HandleScope");
   i::HandleScope::Enter(&previous_);
 }
@@ skipping 1117 matching lines @@
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   if (obj->IsSmi()) return true;
   if (obj->IsNumber()) {
     double value = obj->Number();
     return i::FastI2D(i::FastD2I(value)) == value;
   }
   return false;
 }
 
 
+bool Value::IsUint32() const {
+  if (IsDeadCheck("v8::Value::IsUint32()")) return false;
+  i::Handle<i::Object> obj = Utils::OpenHandle(this);
+  if (obj->IsSmi()) return i::Smi::cast(*obj)->value() >= 0;
+  if (obj->IsNumber()) {
+    double value = obj->Number();
+    return i::FastUI2D(i::FastD2UI(value)) == value;
+  }
+  return false;
+}
+
+
 bool Value::IsDate() const {
   if (IsDeadCheck("v8::Value::IsDate()")) return false;
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   return obj->HasSpecificClassOf(i::Heap::Date_symbol());
 }
 
 
 Local<String> Value::ToString() const {
   if (IsDeadCheck("v8::Value::ToString()")) return Local<String>();
   LOG_API("ToString");
@@ skipping 385 matching lines @@
       self,
       key_obj,
       value_obj,
       static_cast<PropertyAttributes>(attribs));
   has_pending_exception = obj.is_null();
   EXCEPTION_BAILOUT_CHECK(false);
   return true;
 }
 
 
+bool v8::Object::Set(uint32_t index, v8::Handle<Value> value) {
+  ON_BAILOUT("v8::Object::Set()", return false);
+  ENTER_V8;
+  HandleScope scope;
+  i::Handle<i::JSObject> self = Utils::OpenHandle(this);
+  i::Handle<i::Object> value_obj = Utils::OpenHandle(*value);
+  EXCEPTION_PREAMBLE();
+  i::Handle<i::Object> obj = i::SetElement(
+      self,
+      index,
+      value_obj);
+  has_pending_exception = obj.is_null();
+  EXCEPTION_BAILOUT_CHECK(false);
+  return true;
+}
+
+
 bool v8::Object::ForceSet(v8::Handle<Value> key,
                           v8::Handle<Value> value,
                           v8::PropertyAttribute attribs) {
   ON_BAILOUT("v8::Object::ForceSet()", return false);
   ENTER_V8;
   HandleScope scope;
   i::Handle<i::JSObject> self = Utils::OpenHandle(this);
   i::Handle<i::Object> key_obj = Utils::OpenHandle(*key);
   i::Handle<i::Object> value_obj = Utils::OpenHandle(*value);
   EXCEPTION_PREAMBLE();
@@ skipping 28 matching lines @@
   i::Handle<i::Object> self = Utils::OpenHandle(this);
   i::Handle<i::Object> key_obj = Utils::OpenHandle(*key);
   EXCEPTION_PREAMBLE();
   i::Handle<i::Object> result = i::GetProperty(self, key_obj);
   has_pending_exception = result.is_null();
   EXCEPTION_BAILOUT_CHECK(Local<Value>());
   return Utils::ToLocal(result);
 }
 
 
+Local<Value> v8::Object::Get(uint32_t index) {
+  ON_BAILOUT("v8::Object::Get()", return Local<v8::Value>());
+  ENTER_V8;
+  i::Handle<i::JSObject> self = Utils::OpenHandle(this);
+  EXCEPTION_PREAMBLE();
+  i::Handle<i::Object> result = i::GetElement(self, index);
+  has_pending_exception = result.is_null();
+  EXCEPTION_BAILOUT_CHECK(Local<Value>());
+  return Utils::ToLocal(result);
+}
+
+
 Local<Value> v8::Object::GetPrototype() {
   ON_BAILOUT("v8::Object::GetPrototype()", return Local<v8::Value>());
   ENTER_V8;
   i::Handle<i::Object> self = Utils::OpenHandle(this);
   i::Handle<i::Object> result = i::GetPrototype(self);
   return Utils::ToLocal(result);
 }
 
 
 bool v8::Object::SetPrototype(Handle<Value> value) {
@@ skipping 572 matching lines @@
 
 int String::WriteAscii(char* buffer, int start, int length) const {
   if (IsDeadCheck("v8::String::WriteAscii()")) return 0;
   LOG_API("String::WriteAscii");
   ENTER_V8;
   ASSERT(start >= 0 && length >= -1);
   i::Handle<i::String> str = Utils::OpenHandle(this);
   StringTracker::RecordWrite(str);
   // Flatten the string for efficiency.  This applies whether we are
   // using StringInputBuffer or Get(i) to access the characters.
-  str->TryFlattenIfNotFlat();
+  str->TryFlatten();
   int end = length;
   if ( (length == -1) || (length > str->length() - start) )
     end = str->length() - start;
   if (end < 0) return 0;
   write_input_buffer.Reset(start, *str);
   int i;
   for (i = 0; i < end; i++) {
     char c = static_cast<char>(write_input_buffer.GetNext());
     if (c == '\0') c = ' ';
     buffer[i] = c;
@@ skipping 92 matching lines @@
   if (IsDeadCheck("v8::Int32::Value()")) return 0;
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   if (obj->IsSmi()) {
     return i::Smi::cast(*obj)->value();
   } else {
     return static_cast<int32_t>(obj->Number());
   }
 }
 
 
+uint32_t Uint32::Value() const {
+  if (IsDeadCheck("v8::Uint32::Value()")) return 0;
+  i::Handle<i::Object> obj = Utils::OpenHandle(this);
+  if (obj->IsSmi()) {
+    return i::Smi::cast(*obj)->value();
+  } else {
+    return static_cast<uint32_t>(obj->Number());
+  }
+}
+
+
 int v8::Object::InternalFieldCount() {
   if (IsDeadCheck("v8::Object::InternalFieldCount()")) return 0;
   i::Handle<i::JSObject> obj = Utils::OpenHandle(this);
   return obj->GetInternalFieldCount();
 }
 
 
 Local<Value> v8::Object::CheckedGetInternalField(int index) {
   if (IsDeadCheck("v8::Object::GetInternalField()")) return Local<Value>();
   i::Handle<i::JSObject> obj = Utils::OpenHandle(this);
@@ skipping 73 matching lines @@
   return i::V8::IdleNotification();
 }
 
 
 void v8::V8::LowMemoryNotification() {
   if (!i::V8::IsRunning()) return;
   i::Heap::CollectAllGarbage(true);
 }
 
 
+int v8::V8::ContextDisposedNotification() {
+  if (!i::V8::IsRunning()) return 0;
+  return i::Heap::NotifyContextDisposed();
+}
+
+
 const char* v8::V8::GetVersion() {
   static v8::internal::EmbeddedVector<char, 128> buffer;
   v8::internal::Version::GetString(buffer);
   return buffer.start();
 }
 
 
 static i::Handle<i::FunctionTemplateInfo>
     EnsureConstructor(i::Handle<i::ObjectTemplateInfo> templ) {
   if (templ->constructor()->IsUndefined()) {
     Local<FunctionTemplate> constructor = FunctionTemplate::New();
     Utils::OpenHandle(*constructor)->set_instance_template(*templ);
     templ->set_constructor(*Utils::OpenHandle(*constructor));
   }
   return i::Handle<i::FunctionTemplateInfo>(
     i::FunctionTemplateInfo::cast(templ->constructor()));
 }
 
 
 Persistent<Context> v8::Context::New(
     v8::ExtensionConfiguration* extensions,
     v8::Handle<ObjectTemplate> global_template,
     v8::Handle<Value> global_object) {
   EnsureInitialized("v8::Context::New()");
   LOG_API("Context::New");
   ON_BAILOUT("v8::Context::New()", return Persistent<Context>());
 
-#if defined(ANDROID)
-  // On mobile device, full GC is expensive, leave it to the system to
-  // decide when should make a full GC.
-#else
-  // Give the heap a chance to cleanup if we've disposed contexts.
-  i::Heap::CollectAllGarbageIfContextDisposed();
-#endif
-
   // Enter V8 via an ENTER_V8 scope.
   i::Handle<i::Context> env;
   {
     ENTER_V8;
     v8::Handle<ObjectTemplate> proxy_template = global_template;
     i::Handle<i::FunctionTemplateInfo> proxy_constructor;
     i::Handle<i::FunctionTemplateInfo> global_constructor;
 
     if (!global_template.IsEmpty()) {
       // Make sure that the global_template has a constructor.
@@ skipping 686 matching lines @@
   }
 }
 
 
 void V8::TerminateExecution() {
   if (!i::V8::IsRunning()) return;
   i::StackGuard::TerminateExecution();
 }
 
 
+bool V8::IsExecutionTerminating() {
+  if (!i::V8::IsRunning()) return false;
+  if (i::Top::has_scheduled_exception()) {
+    return i::Top::scheduled_exception() == i::Heap::termination_exception();
+  }
+  return false;
+}
+
+
 String::Utf8Value::Utf8Value(v8::Handle<v8::Value> obj) {
   EnsureInitialized("v8::String::Utf8Value::Utf8Value()");
   if (obj.IsEmpty()) {
     str_ = NULL;
     length_ = 0;
     return;
   }
   ENTER_V8;
   HandleScope scope;
   TryCatch try_catch;
@@ skipping 364 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* thread_local =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   thread_local->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal