Ensure that bound functions does not have a prototype (fixes issue 794)

src/runtime.cc

 // Copyright 2011 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 1837 matching lines @@
   NoHandleAllocation ha;
   ASSERT(args.length() == 2);
 
   CONVERT_CHECKED(JSFunction, f, args[0]);
   CONVERT_CHECKED(String, name, args[1]);
   f->shared()->set_name(name);
   return isolate->heap()->undefined_value();
 }
 
 
+RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionSetBound) {
+  HandleScope scope(isolate);
+  ASSERT(args.length() == 1);
+
+  CONVERT_CHECKED(JSFunction, fun, args[0]);
+  fun->shared()->set_bound(true);
+  return isolate->heap()->undefined_value();
+}
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionRemovePrototype) {
   NoHandleAllocation ha;
   ASSERT(args.length() == 1);
 
   CONVERT_CHECKED(JSFunction, f, args[0]);
   Object* obj = f->RemovePrototype();
   if (obj->IsFailure()) return obj;
 
   return isolate->heap()->undefined_value();
 }
@@ skipping 5624 matching lines @@
     Vector< Handle<Object> > arguments = HandleVector(&constructor, 1);
     Handle<Object> type_error =
         isolate->factory()->NewTypeError("not_constructor", arguments);
     return isolate->Throw(*type_error);
   }
 
   Handle<JSFunction> function = Handle<JSFunction>::cast(constructor);
 
   // If function should not have prototype, construction is not allowed. In this
   // case generated code bailouts here, since function has no initial_map.
-  if (!function->should_have_prototype()) {
+  if (!function->should_have_prototype() && !function->shared()->bound()) {
     Vector< Handle<Object> > arguments = HandleVector(&constructor, 1);
     Handle<Object> type_error =
         isolate->factory()->NewTypeError("not_constructor", arguments);
     return isolate->Throw(*type_error);
   }
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   Debug* debug = isolate->debug();
   // Handle stepping into constructors if step into is active.
   if (debug->StepInActive()) {
@@ skipping 4862 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal