Implement Function.prototype.toMethod.

src/factory.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/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/conversions.h"
 #include "src/isolate-inl.h"
 #include "src/macro-assembler.h"
@@ skipping 1328 matching lines @@
   Handle<JSObject> prototype = NewJSObjectFromMap(new_map);
 
   if (!function->shared()->is_generator()) {
     JSObject::AddProperty(prototype, constructor_string(), function, DONT_ENUM);
   }
 
   return prototype;
 }
 
 
-Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
+Handle<JSFunction> Factory::NewFunctionWithMapFromSharedFunctionInfo(
+    Handle<Map> map,
     Handle<SharedFunctionInfo> info,
     Handle<Context> context,
     PretenureFlag pretenure) {
-  int map_index = Context::FunctionMapIndex(info->strict_mode(),
-                                            info->is_generator());
-  Handle<Map> map(Map::cast(context->native_context()->get(map_index)));
   Handle<JSFunction> result = NewFunction(map, info, context, pretenure);
 
   if (info->ic_age() != isolate()->heap()->global_ic_age()) {
     info->ResetForNewContext(isolate()->heap()->global_ic_age());
   }
 
   int index = info->SearchOptimizedCodeMap(context->native_context(),
                                            BailoutId::None());
   if (!info->bound() && index < 0) {
     int number_of_literals = info->num_literals();
@@ skipping 24 matching lines @@
       !info->is_toplevel() &&
       info->allows_lazy_compilation() &&
       !info->optimization_disabled() &&
       !isolate()->DebuggerHasBreakPoints()) {
     result->MarkForOptimization();
   }
   return result;
 }
 
 
+Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
+    Handle<SharedFunctionInfo> info,
+    Handle<Context> context,
+    PretenureFlag pretenure) {
+  int map_index = Context::FunctionMapIndex(info->strict_mode(),
+                                            info->is_generator());
+  Handle<Map> map(Map::cast(context->native_context()->get(map_index)));
+  return NewFunctionWithMapFromSharedFunctionInfo(
+      map, info, context, pretenure);
+}
+
+
 Handle<ScopeInfo> Factory::NewScopeInfo(int length) {
   Handle<FixedArray> array = NewFixedArray(length, TENURED);
   array->set_map_no_write_barrier(*scope_info_map());
   Handle<ScopeInfo> scope_info = Handle<ScopeInfo>::cast(array);
   return scope_info;
 }
 
 
 Handle<JSObject> Factory::NewExternal(void* value) {
   Handle<Foreign> foreign = NewForeign(static_cast<Address>(value));
@@ skipping 969 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal