Use instance type in Object.prototype.toString().

src/bootstrapper.cc

 // Copyright 2014 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 "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/ieee754.h"
 #include "src/code-stubs.h"
@@ skipping 1567 matching lines @@
 
     static const int num_fields = JSRegExp::kInObjectFieldCount;
     initial_map->SetInObjectProperties(num_fields);
     initial_map->set_unused_property_fields(0);
     initial_map->set_instance_size(initial_map->instance_size() +
                                    num_fields * kPointerSize);
   }
 
   {  // -- E r r o r
     Handle<JSFunction> error_fun = InstallFunction(
-        global, "Error", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "Error", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, error_fun,
                                      Context::ERROR_FUNCTION_INDEX);
   }
 
   {  // -- E v a l E r r o r
     Handle<JSFunction> eval_error_fun = InstallFunction(
-        global, "EvalError", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "EvalError", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, eval_error_fun,
                                      Context::EVAL_ERROR_FUNCTION_INDEX);
   }
 
   {  // -- R a n g e E r r o r
     Handle<JSFunction> range_error_fun = InstallFunction(
-        global, "RangeError", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "RangeError", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, range_error_fun,
                                      Context::RANGE_ERROR_FUNCTION_INDEX);
   }
 
   {  // -- R e f e r e n c e E r r o r
     Handle<JSFunction> reference_error_fun = InstallFunction(
-        global, "ReferenceError", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "ReferenceError", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, reference_error_fun,
                                      Context::REFERENCE_ERROR_FUNCTION_INDEX);
   }
 
   {  // -- S y n t a x E r r o r
     Handle<JSFunction> syntax_error_fun = InstallFunction(
-        global, "SyntaxError", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "SyntaxError", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, syntax_error_fun,
                                      Context::SYNTAX_ERROR_FUNCTION_INDEX);
   }
 
   {  // -- T y p e E r r o r
     Handle<JSFunction> type_error_fun = InstallFunction(
-        global, "TypeError", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "TypeError", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, type_error_fun,
                                      Context::TYPE_ERROR_FUNCTION_INDEX);
   }
 
   {  // -- U R I E r r o r
     Handle<JSFunction> uri_error_fun = InstallFunction(
-        global, "URIError", JS_OBJECT_TYPE, JSObject::kHeaderSize,
+        global, "URIError", JS_ERROR_TYPE, JSObject::kHeaderSize,
         isolate->initial_object_prototype(), Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, uri_error_fun,
                                      Context::URI_ERROR_FUNCTION_INDEX);
   }
 
   // Initialize the embedder data slot.
   Handle<FixedArray> embedder_data = factory->NewFixedArray(3);
   native_context()->set_embedder_data(*embedder_data);
 
   if (context_type == THIN_CONTEXT) return;
@@ skipping 326 matching lines @@
     // Make sure we can recognize argument objects at runtime.
     // This is done by introducing an anonymous function with
     // class_name equals 'Arguments'.
     Handle<String> arguments_string = factory->Arguments_string();
     Handle<Code> code = isolate->builtins()->Illegal();
     Handle<JSFunction> function = factory->NewFunctionWithoutPrototype(
         arguments_string, code);
     function->shared()->set_instance_class_name(*arguments_string);
 
     Handle<Map> map = factory->NewMap(
-        JS_OBJECT_TYPE, JSSloppyArgumentsObject::kSize, FAST_ELEMENTS);
+        JS_ARGUMENTS_TYPE, JSSloppyArgumentsObject::kSize, FAST_ELEMENTS);
     // Create the descriptor array for the arguments object.
     Map::EnsureDescriptorSlack(map, 2);
 
     {  // length
       DataDescriptor d(factory->length_string(),
                        JSSloppyArgumentsObject::kLengthIndex, DONT_ENUM,
                        Representation::Tagged());
       map->AppendDescriptor(&d);
     }
     {  // callee
@@ skipping 39 matching lines @@
     Handle<JSFunction> poison = GetStrictArgumentsPoisonFunction();
 
     // Install the ThrowTypeError functions.
     callee->set_getter(*poison);
     callee->set_setter(*poison);
     caller->set_getter(*poison);
     caller->set_setter(*poison);
 
     // Create the map. Allocate one in-object field for length.
     Handle<Map> map = factory->NewMap(
-        JS_OBJECT_TYPE, JSStrictArgumentsObject::kSize, FAST_ELEMENTS);
+        JS_ARGUMENTS_TYPE, JSStrictArgumentsObject::kSize, FAST_ELEMENTS);
     // Create the descriptor array for the arguments object.
     Map::EnsureDescriptorSlack(map, 3);
 
     {  // length
       DataDescriptor d(factory->length_string(),
                        JSStrictArgumentsObject::kLengthIndex, DONT_ENUM,
                        Representation::Tagged());
       map->AppendDescriptor(&d);
     }
     {  // callee
@@ skipping 1925 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8