Merge 6006:6095 from bleeding_edge to experimental/gc branch.

src/api.cc

 // Copyright 2010 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 3109 matching lines @@
   LOG_API("String::Write");
   ENTER_V8;
   ASSERT(start >= 0 && length >= -1);
   i::Handle<i::String> str = Utils::OpenHandle(this);
   StringTracker::RecordWrite(str);
   if (hints & HINT_MANY_WRITES_EXPECTED) {
     // Flatten the string for efficiency.  This applies whether we are
     // using StringInputBuffer or Get(i) to access the characters.
     str->TryFlatten();
   }
-  int end = length;
-  if ( (length == -1) || (length > str->length() - start) )
-    end = str->length() - start;
+  int end = start + length;
+  if ((length == -1) || (length > str->length() - start) )
+    end = str->length();
   if (end < 0) return 0;
   i::String::WriteToFlat(*str, buffer, start, end);
-  if (length == -1 || end < length)
-    buffer[end] = '\0';
-  return end;
+  if (length == -1 || end - start < length) {
+    buffer[end - start] = '\0';
+  }
+  return end - start;
 }
 
 
 bool v8::String::IsExternal() const {
   EnsureInitialized("v8::String::IsExternal()");
   i::Handle<i::String> str = Utils::OpenHandle(this);
   return i::StringShape(*str).IsExternalTwoByte();
 }
 
 
@@ skipping 646 matching lines @@
 
 double v8::Date::NumberValue() const {
   if (IsDeadCheck("v8::Date::NumberValue()")) return 0;
   LOG_API("Date::NumberValue");
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   i::Handle<i::JSValue> jsvalue = i::Handle<i::JSValue>::cast(obj);
   return jsvalue->value()->Number();
 }
 
 
+void v8::Date::DateTimeConfigurationChangeNotification() {
+  ON_BAILOUT("v8::Date::DateTimeConfigurationChangeNotification()", return);
+  LOG_API("Date::DateTimeConfigurationChangeNotification");
+  ENTER_V8;
+
+  HandleScope scope;
+
+  // Get the function ResetDateCache (defined in date-delay.js).
+  i::Handle<i::String> func_name_str =
+      i::Factory::LookupAsciiSymbol("ResetDateCache");
+  i::MaybeObject* result = i::Top::builtins()->GetProperty(*func_name_str);
+  i::Object* object_func;
+  if (!result->ToObject(&object_func)) {
+    return;
+  }
+
+  if (object_func->IsJSFunction()) {
+    i::Handle<i::JSFunction> func =
+        i::Handle<i::JSFunction>(i::JSFunction::cast(object_func));
+
+    // Call ResetDateCache(0 but expect no exceptions:
+    bool caught_exception = false;
+    i::Handle<i::Object> result =
+        i::Execution::TryCall(func, i::Top::builtins(), 0, NULL,
+        &caught_exception);
+  }
+}
+
+
 static i::Handle<i::String> RegExpFlagsToString(RegExp::Flags flags) {
   char flags_buf[3];
   int num_flags = 0;
   if ((flags & RegExp::kGlobal) != 0) flags_buf[num_flags++] = 'g';
   if ((flags & RegExp::kMultiline) != 0) flags_buf[num_flags++] = 'm';
   if ((flags & RegExp::kIgnoreCase) != 0) flags_buf[num_flags++] = 'i';
   ASSERT(num_flags <= static_cast<int>(ARRAY_SIZE(flags_buf)));
   return i::Factory::LookupSymbol(
       i::Vector<const char>(flags_buf, num_flags));
 }
@@ skipping 1157 matching lines @@
 
 v8::Testing::StressType internal::Testing::stress_type_ =
     v8::Testing::kStressTypeOpt;
 
 
 void Testing::SetStressRunType(Testing::StressType type) {
   internal::Testing::set_stress_type(type);
 }
 
 int Testing::GetStressRuns() {
+  if (internal::FLAG_stress_runs != 0) return internal::FLAG_stress_runs;
 #ifdef DEBUG
   // In debug mode the code runs much slower so stressing will only make two
   // runs.
   return 2;
 #else
   return 5;
 #endif
 }
 
 
@@ skipping 114 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