Convert function.length to API-style accessor.

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 "bootstrapper.h"
 
 #include "accessors.h"
 #include "isolate-inl.h"
 #include "natives.h"
 #include "snapshot.h"
@@ skipping 370 matching lines @@
   function->shared()->set_native(true);
   return function;
 }
 
 
 void Genesis::SetFunctionInstanceDescriptor(
     Handle<Map> map, PrototypePropertyMode prototypeMode) {
   int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5;
   Map::EnsureDescriptorSlack(map, size);
 
-  Handle<Foreign> length(factory()->NewForeign(&Accessors::FunctionLength));
   Handle<Foreign> name(factory()->NewForeign(&Accessors::FunctionName));
   Handle<Foreign> args(factory()->NewForeign(&Accessors::FunctionArguments));
   Handle<Foreign> caller(factory()->NewForeign(&Accessors::FunctionCaller));
   PropertyAttributes attribs = static_cast<PropertyAttributes>(
       DONT_ENUM | DONT_DELETE | READ_ONLY);
 
+  Handle<AccessorInfo> length =
+      Accessors::FunctionLengthInfo(isolate(), attribs);
   {  // Add length.
-    CallbacksDescriptor d(factory()->length_string(), length, attribs);
+    CallbacksDescriptor d(Handle<Name>(Name::cast(length->name())),
+                          length, attribs);
     map->AppendDescriptor(&d);
   }
   {  // Add name.
     CallbacksDescriptor d(factory()->name_string(), name, attribs);
     map->AppendDescriptor(&d);
   }
   {  // Add arguments.
     CallbacksDescriptor d(factory()->arguments_string(), args, attribs);
     map->AppendDescriptor(&d);
   }
@@ skipping 100 matching lines @@
   empty_function->set_map(*empty_function_map);
   return empty_function;
 }
 
 
 void Genesis::SetStrictFunctionInstanceDescriptor(
     Handle<Map> map, PrototypePropertyMode prototypeMode) {
   int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5;
   Map::EnsureDescriptorSlack(map, size);
 
-  Handle<Foreign> length(factory()->NewForeign(&Accessors::FunctionLength));
   Handle<Foreign> name(factory()->NewForeign(&Accessors::FunctionName));
   Handle<AccessorPair> arguments(factory()->NewAccessorPair());
   Handle<AccessorPair> caller(factory()->NewAccessorPair());
   PropertyAttributes rw_attribs =
       static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE);
   PropertyAttributes ro_attribs =
       static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
 
+  Handle<AccessorInfo> length =
+      Accessors::FunctionLengthInfo(isolate(), ro_attribs);
   {  // Add length.
-    CallbacksDescriptor d(factory()->length_string(), length, ro_attribs);
+    CallbacksDescriptor d(Handle<Name>(Name::cast(length->name())),
+                          length, ro_attribs);
     map->AppendDescriptor(&d);
   }
   {  // Add name.
     CallbacksDescriptor d(factory()->name_string(), name, ro_attribs);
     map->AppendDescriptor(&d);
   }
   {  // Add arguments.
     CallbacksDescriptor d(factory()->arguments_string(), arguments,
                           rw_attribs);
     map->AppendDescriptor(&d);
@@ skipping 2138 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal