Remove property loads from js builtins objects from runtime.

R=cbruni@chromium.org

Review URL: https://codereview.chromium.org/1293113002

Cr-Commit-Position: refs/heads/master@{#30199}

diff --git a/src/api.cc b/src/api.cc
index 46cac75..469d9c6 100644 (file)
--- a/src/api.cc
+++ b/src/api.cc
@@ -2275,31 +2275,15 @@ v8::Local<v8::StackTrace> Message::GetStackTrace() const {
 }
 
 
-MUST_USE_RESULT static i::MaybeHandle<i::Object> CallV8HeapFunction(
-    i::Isolate* isolate, const char* name, i::Handle<i::Object> recv, int argc,
-    i::Handle<i::Object> argv[]) {
-  i::Handle<i::Object> object_fun =
-      i::Object::GetProperty(
-          isolate, isolate->js_builtins_object(), name).ToHandleChecked();
-  i::Handle<i::JSFunction> fun = i::Handle<i::JSFunction>::cast(object_fun);
-  return i::Execution::Call(isolate, fun, recv, argc, argv);
-}
-
-
-MUST_USE_RESULT static i::MaybeHandle<i::Object> CallV8HeapFunction(
-    i::Isolate* isolate, const char* name, i::Handle<i::Object> data) {
-  i::Handle<i::Object> argv[] = { data };
-  return CallV8HeapFunction(isolate, name, isolate->js_builtins_object(),
-                            arraysize(argv), argv);
-}
-
-
 Maybe<int> Message::GetLineNumber(Local<Context> context) const {
   PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Message::GetLineNumber()", int);
+  i::Handle<i::JSFunction> fun = isolate->message_get_line_number();
+  i::Handle<i::Object> undefined = isolate->factory()->undefined_value();
+  i::Handle<i::Object> args[] = {Utils::OpenHandle(this)};
   i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "$messageGetLineNumber",
-                          Utils::OpenHandle(this)).ToHandle(&result);
+      !i::Execution::Call(isolate, fun, undefined, arraysize(args), args)
+           .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int);
   return Just(static_cast<int>(result->Number()));
 }
@@ -2326,13 +2310,15 @@ int Message::GetEndPosition() const {
 Maybe<int> Message::GetStartColumn(Local<Context> context) const {
   PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Message::GetStartColumn()",
                                   int);
-  auto self = Utils::OpenHandle(this);
-  i::Handle<i::Object> start_col_obj;
+  i::Handle<i::JSFunction> fun = isolate->message_get_column_number();
+  i::Handle<i::Object> undefined = isolate->factory()->undefined_value();
+  i::Handle<i::Object> args[] = {Utils::OpenHandle(this)};
+  i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "$messageGetPositionInLine", self)
-           .ToHandle(&start_col_obj);
+      !i::Execution::Call(isolate, fun, undefined, arraysize(args), args)
+           .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int);
-  return Just(static_cast<int>(start_col_obj->Number()));
+  return Just(static_cast<int>(result->Number()));
 }
 
 
@@ -2344,16 +2330,19 @@ int Message::GetStartColumn() const {
 
 
 Maybe<int> Message::GetEndColumn(Local<Context> context) const {
-  PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Message::GetEndColumn()", int);
   auto self = Utils::OpenHandle(this);
-  i::Handle<i::Object> start_col_obj;
+  PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Message::GetEndColumn()", int);
+  i::Handle<i::JSFunction> fun = isolate->message_get_column_number();
+  i::Handle<i::Object> undefined = isolate->factory()->undefined_value();
+  i::Handle<i::Object> args[] = {self};
+  i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "$messageGetPositionInLine", self)
-           .ToHandle(&start_col_obj);
+      !i::Execution::Call(isolate, fun, undefined, arraysize(args), args)
+           .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int);
   int start = self->start_position();
   int end = self->end_position();
-  return Just(static_cast<int>(start_col_obj->Number()) + (end - start));
+  return Just(static_cast<int>(result->Number()) + (end - start));
 }
 
 
@@ -2387,10 +2376,13 @@ bool Message::IsOpaque() const {
 
 MaybeLocal<String> Message::GetSourceLine(Local<Context> context) const {
   PREPARE_FOR_EXECUTION(context, "v8::Message::GetSourceLine()", String);
+  i::Handle<i::JSFunction> fun = isolate->message_get_source_line();
+  i::Handle<i::Object> undefined = isolate->factory()->undefined_value();
+  i::Handle<i::Object> args[] = {Utils::OpenHandle(this)};
   i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "$messageGetSourceLine",
-                          Utils::OpenHandle(this)).ToHandle(&result);
+      !i::Execution::Call(isolate, fun, undefined, arraysize(args), args)
+           .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION(String);
   Local<String> str;
   if (result->IsString()) {
@@ -3380,9 +3372,11 @@ Maybe<bool> Value::Equals(Local<Context> context, Local<Value> that) const {
   }
   PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Value::Equals()", bool);
   i::Handle<i::Object> args[] = { other };
+  i::Handle<i::JSFunction> fun(i::JSFunction::cast(
+      isolate->js_builtins_object()->javascript_builtin(i::Builtins::EQUALS)));
   i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "EQUALS", self, arraysize(args), args)
+      !i::Execution::Call(isolate, fun, self, arraysize(args), args)
            .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool);
   return Just(*result == i::Smi::FromInt(i::EQUAL));
@@ -3512,11 +3506,12 @@ Maybe<bool> v8::Object::DefineOwnProperty(v8::Local<v8::Context> context,
   i::Handle<i::JSArray> desc_array =
       isolate->factory()->NewJSArrayWithElements(desc, i::FAST_ELEMENTS, 3);
   i::Handle<i::Object> args[] = {self, key_obj, value_obj, desc_array};
+  i::Handle<i::Object> undefined = isolate->factory()->undefined_value();
+  i::Handle<i::JSFunction> fun = isolate->object_define_own_property();
   i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "$objectDefineOwnProperty",
-                          isolate->factory()->undefined_value(),
-                          arraysize(args), args).ToHandle(&result);
+      !i::Execution::Call(isolate, fun, undefined, arraysize(args), args)
+           .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool);
   return Just(result->BooleanValue());
 }
@@ -3648,11 +3643,12 @@ MaybeLocal<Value> v8::Object::GetOwnPropertyDescriptor(Local<Context> context,
   auto obj = Utils::OpenHandle(this);
   auto key_name = Utils::OpenHandle(*key);
   i::Handle<i::Object> args[] = { obj, key_name };
+  i::Handle<i::JSFunction> fun = isolate->object_get_own_property_descriptor();
+  i::Handle<i::Object> undefined = isolate->factory()->undefined_value();
   i::Handle<i::Object> result;
   has_pending_exception =
-      !CallV8HeapFunction(isolate, "$objectGetOwnPropertyDescriptor",
-                          isolate->factory()->undefined_value(),
-                          arraysize(args), args).ToHandle(&result);
+      !i::Execution::Call(isolate, fun, undefined, arraysize(args), args)
+           .ToHandle(&result);
   RETURN_ON_FAILED_EXECUTION(Value);
   RETURN_ESCAPED(Utils::ToLocal(result));
 }

diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 62d417e..5f4e099 100644 (file)
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1754,6 +1754,16 @@ void Bootstrapper::ImportNatives(Isolate* isolate, Handle<JSObject> container) {
   INSTALL_NATIVE(JSFunction, "GetStackTraceLine", get_stack_trace_line_fun);
   INSTALL_NATIVE(JSFunction, "ToCompletePropertyDescriptor",
                  to_complete_property_descriptor);
+  INSTALL_NATIVE(JSFunction, "ObjectDefineOwnProperty",
+                 object_define_own_property);
+  INSTALL_NATIVE(JSFunction, "ObjectGetOwnPropertyDescriptor",
+                 object_get_own_property_descriptor);
+  INSTALL_NATIVE(JSFunction, "MessageGetLineNumber", message_get_line_number);
+  INSTALL_NATIVE(JSFunction, "MessageGetColumnNumber",
+                 message_get_column_number);
+  INSTALL_NATIVE(JSFunction, "MessageGetSourceLine", message_get_source_line);
+  INSTALL_NATIVE(JSObject, "StackOverflowBoilerplate",
+                 stack_overflow_boilerplate);
   INSTALL_NATIVE(JSFunction, "JsonSerializeAdapter", json_serialize_adapter);
 
   INSTALL_NATIVE(JSFunction, "Error", error_function);

diff --git a/src/contexts.h b/src/contexts.h
index 9271b06..9e6fc0e 100644 (file)
--- a/src/contexts.h
+++ b/src/contexts.h
@@ -172,6 +172,13 @@ enum BindingFlags {
     promise_has_user_defined_reject_handler)                                   \
   V(TO_COMPLETE_PROPERTY_DESCRIPTOR_INDEX, JSFunction,                         \
     to_complete_property_descriptor)                                           \
+  V(OBJECT_DEFINE_OWN_PROPERTY_INDEX, JSFunction, object_define_own_property)  \
+  V(OBJECT_GET_OWN_PROPERTY_DESCROPTOR_INDEX, JSFunction,                      \
+    object_get_own_property_descriptor)                                        \
+  V(MESSAGE_GET_LINE_NUMBER_INDEX, JSFunction, message_get_line_number)        \
+  V(MESSAGE_GET_COLUMN_NUMBER_INDEX, JSFunction, message_get_column_number)    \
+  V(MESSAGE_GET_SOURCE_LINE_INDEX, JSFunction, message_get_source_line)        \
+  V(STACK_OVERFLOW_BOILERPLATE_INDEX, JSObject, stack_overflow_boilerplate)    \
   V(JSON_SERIALIZE_ADAPTER_INDEX, JSFunction, json_serialize_adapter)          \
   V(DERIVED_HAS_TRAP_INDEX, JSFunction, derived_has_trap)                      \
   V(DERIVED_GET_TRAP_INDEX, JSFunction, derived_get_trap)                      \

diff --git a/src/isolate.cc b/src/isolate.cc
index 06e3c61..2985474 100644 (file)
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -845,14 +845,8 @@ Object* Isolate::StackOverflow() {
   // At this point we cannot create an Error object using its javascript
   // constructor.  Instead, we copy the pre-constructed boilerplate and
   // attach the stack trace as a hidden property.
-  Handle<String> key = factory()->stack_overflow_string();
-  Handle<Object> boilerplate =
-      Object::GetProperty(js_builtins_object(), key).ToHandleChecked();
-  if (boilerplate->IsUndefined()) {
-    return Throw(heap()->undefined_value(), nullptr);
-  }
-  Handle<JSObject> exception =
-      factory()->CopyJSObject(Handle<JSObject>::cast(boilerplate));
+  Handle<JSObject> boilerplate = stack_overflow_boilerplate();
+  Handle<JSObject> exception = factory()->CopyJSObject(boilerplate);
   Throw(*exception, nullptr);
 
   CaptureAndSetSimpleStackTrace(exception, factory()->undefined_value());

diff --git a/src/messages.js b/src/messages.js
index 712dba4..a111660 100644 (file)
--- a/src/messages.js
+++ b/src/messages.js
@@ -5,12 +5,7 @@
 // -------------------------------------------------------------------
 
 var $errorToString;
-var $getStackTraceLine;
 var $internalErrorSymbol;
-var $messageGetPositionInLine;
-var $messageGetLineNumber;
-var $messageGetSourceLine;
-var $stackOverflowBoilerplate;
 var $stackTraceSymbol;
 var MakeError;
 var MakeEvalError;
@@ -213,6 +208,16 @@ function GetLineNumber(message) {
 }
 
 
+//Returns the offset of the given position within the containing line.
+function GetColumnNumber(message) {
+  var script = %MessageGetScript(message);
+  var start_position = %MessageGetStartPosition(message);
+  var location = script.locationFromPosition(start_position, true);
+  if (location == null) return -1;
+  return location.column;
+}
+
+
 // Returns the source code line containing the given source
 // position, or the empty string if the position is invalid.
 function GetSourceLine(message) {
@@ -223,6 +228,7 @@ function GetSourceLine(message) {
   return location.sourceText();
 }
 
+
 /**
  * Find a line number given a specific source position.
  * @param {number} position The source position.
@@ -556,17 +562,6 @@ utils.SetUpLockedPrototype(SourceSlice,
 );
 
 
-// Returns the offset of the given position within the containing
-// line.
-function GetPositionInLine(message) {
-  var script = %MessageGetScript(message);
-  var start_position = %MessageGetStartPosition(message);
-  var location = script.locationFromPosition(start_position, true);
-  if (location == null) return -1;
-  return location.column;
-}
-
-
 function GetStackTraceLine(recv, fun, pos, isGlobal) {
   return new CallSite(recv, fun, pos, false).toString();
 }
@@ -1005,9 +1000,6 @@ utils.InstallFunctions(GlobalError.prototype, DONT_ENUM,
                        ['toString', ErrorToString]);
 
 $errorToString = ErrorToString;
-$messageGetPositionInLine = GetPositionInLine;
-$messageGetLineNumber = GetLineNumber;
-$messageGetSourceLine = GetSourceLine;
 
 MakeError = function(type, arg0, arg1, arg2) {
   return MakeGenericError(GlobalError, type, arg0, arg1, arg2);
@@ -1031,8 +1023,8 @@ MakeURIError = function() {
 
 // Boilerplate for exceptions for stack overflows. Used from
 // Isolate::StackOverflow().
-$stackOverflowBoilerplate = MakeRangeError(kStackOverflow);
-%DefineAccessorPropertyUnchecked($stackOverflowBoilerplate, 'stack',
+var StackOverflowBoilerplate = MakeRangeError(kStackOverflow);
+%DefineAccessorPropertyUnchecked(StackOverflowBoilerplate, 'stack',
                                  StackTraceGetter, StackTraceSetter,
                                  DONT_ENUM);
 
@@ -1059,6 +1051,10 @@ utils.ExportToRuntime(function(to) {
   to.NoSideEffectToString = NoSideEffectToString;
   to.ToDetailString = ToDetailString;
   to.MakeError = MakeGenericError;
+  to.MessageGetLineNumber = GetLineNumber;
+  to.MessageGetColumnNumber = GetColumnNumber;
+  to.MessageGetSourceLine = GetSourceLine;
+  to.StackOverflowBoilerplate = StackOverflowBoilerplate;
 });
 
 });

diff --git a/src/v8natives.js b/src/v8natives.js
index a492547..9d37e7c 100644 (file)
--- a/src/v8natives.js
+++ b/src/v8natives.js
@@ -3,8 +3,6 @@
 // found in the LICENSE file.
 
 var $functionSourceString;
-var $objectDefineOwnProperty;
-var $objectGetOwnPropertyDescriptor;
 
 (function(global, utils) {
 
@@ -1785,8 +1783,6 @@ function GetIterator(obj, method) {
 // Exports
 
 $functionSourceString = FunctionSourceString;
-$objectDefineOwnProperty = DefineOwnPropertyFromAPI;
-$objectGetOwnPropertyDescriptor = ObjectGetOwnPropertyDescriptor;
 
 utils.ObjectDefineProperties = ObjectDefineProperties;
 utils.ObjectDefineProperty = ObjectDefineProperty;
@@ -1812,6 +1808,8 @@ utils.Export(function(to) {
 
 utils.ExportToRuntime(function(to) {
   to.GlobalEval = GlobalEval;
+  to.ObjectDefineOwnProperty = DefineOwnPropertyFromAPI;
+  to.ObjectGetOwnPropertyDescriptor = ObjectGetOwnPropertyDescriptor;
   to.ToCompletePropertyDescriptor = ToCompletePropertyDescriptor;
 });