Implement Function.prototype.bind (ES5 15.3.4.5)....

src/runtime.cc

 // Copyright 2006-2009 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 6714 matching lines @@
   CONVERT_ARG_CHECKED(SharedFunctionInfo, shared, 1);
 
   PretenureFlag pretenure = (context->global_context() == *context)
       ? TENURED       // Allocate global closures in old space.
       : NOT_TENURED;  // Allocate local closures in new space.
   Handle<JSFunction> result =
       Factory::NewFunctionFromSharedFunctionInfo(shared, context, pretenure);
   return *result;
 }
 
+static Object* Runtime_NewObjectFromBound(Arguments args) {
+   HandleScope scope;
+   ASSERT(args.length() == 2);
+   CONVERT_ARG_CHECKED(JSFunction, function, 0);
+   CONVERT_ARG_CHECKED(JSArray, params, 1);
+
+   FixedArray* fixed = FixedArray::cast(params->elements());
+
+   bool exception = false;
+   Object*** param_data = NewArray<Object**>(fixed->length());
+   for (int i = 0; i < fixed->length();  i++) {
+     Handle<Object> val = Handle<Object>(fixed->get(i));
+     param_data[i] = val.location();
+   }
+
+   Handle<Object> result = Execution::New(
+       function, fixed->length(), param_data, &exception);
+   return *result;
+
+}
+
 
 static Code* ComputeConstructStub(Handle<JSFunction> function) {
   Handle<Object> prototype = Factory::null_value();
   if (function->has_instance_prototype()) {
     prototype = Handle<Object>(function->instance_prototype());
   }
   if (function->shared()->CanGenerateInlineConstructor(*prototype)) {
     ConstructStubCompiler compiler;
     Object* code = compiler.CompileConstructStub(function->shared());
     if (code->IsFailure()) {
@@ skipping 3799 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal