Reimplement Function.prototype.bind.

src/objects-inl.h

 // 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 3293 matching lines @@
   return reinterpret_cast<FixedArray*>(
       READ_FIELD(this, kPrototypeTransitionsOffset));
 }
 
 
 ACCESSORS(Map, code_cache, Object, kCodeCacheOffset)
 ACCESSORS(Map, prototype_transitions, FixedArray, kPrototypeTransitionsOffset)
 ACCESSORS(Map, constructor, Object, kConstructorOffset)
 
 ACCESSORS(JSFunction, shared, SharedFunctionInfo, kSharedFunctionInfoOffset)
-ACCESSORS(JSFunction, literals, FixedArray, kLiteralsOffset)
+ACCESSORS(JSFunction, literals_or_bindings, FixedArray, kLiteralsOffset)
 ACCESSORS(JSFunction,
           next_function_link,
           Object,
           kNextFunctionLinkOffset)
 
 ACCESSORS(GlobalObject, builtins, JSBuiltinsObject, kBuiltinsOffset)
 ACCESSORS(GlobalObject, global_context, Context, kGlobalContextOffset)
 ACCESSORS(GlobalObject, global_receiver, JSObject, kGlobalReceiverOffset)
 
 ACCESSORS(JSGlobalProxy, context, Object, kContextOffset)
@@ skipping 498 matching lines @@
 bool JSFunction::should_have_prototype() {
   return map()->function_with_prototype();
 }
 
 
 bool JSFunction::is_compiled() {
   return code() != GetIsolate()->builtins()->builtin(Builtins::kLazyCompile);
 }
 
 
+FixedArray* JSFunction::literals() {
+  ASSERT(!shared()->bound());
+  return literals_or_bindings();
+}
+
+
+void JSFunction::set_literals(FixedArray* literals) {
+  ASSERT(!shared()->bound());
+  set_literals_or_bindings(literals);
+}
+
+
+FixedArray* JSFunction::function_bindings() {
+  ASSERT(shared()->bound());
+  return literals_or_bindings();
+}
+
+
+void JSFunction::set_function_bindings(FixedArray* bindings) {
+  ASSERT(shared()->bound());
+  // Bound function literal may be initialized to the empty fixed array
+  // before the bindings are set.
+  ASSERT(bindings == GetHeap()->empty_fixed_array() ||
+         bindings->map() == GetHeap()->fixed_cow_array_map());
+  set_literals_or_bindings(bindings);
+}
+
+
 int JSFunction::NumberOfLiterals() {
+  ASSERT(!shared()->bound());
   return literals()->length();
 }
 
 
 Object* JSBuiltinsObject::javascript_builtin(Builtins::JavaScript id) {
   ASSERT(id < kJSBuiltinsCount);  // id is unsigned.
   return READ_FIELD(this, OffsetOfFunctionWithId(id));
 }
 
 
@@ skipping 797 matching lines @@
 #undef WRITE_INT_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_