Throw when calling an undefined function

src/v8natives.js

 // Copyright 2012 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.
 
 (function(global, utils) {
 
 %CheckIsBootstrapping();
 
 // ----------------------------------------------------------------------------
 // Imports
@@ skipping 90 matching lines @@
 
   var global_proxy = %GlobalProxy(GlobalEval);
 
   var f = %CompileString(x, false);
   if (!IS_FUNCTION(f)) return f;
 
   return %_CallFunction(global_proxy, f);
 }
 
 
+function GlobalThrowLittleDan() {
+  throw "LittleDan!"
+}
+
+
 // ----------------------------------------------------------------------------
 
 // Set up global object.
 var attributes = DONT_ENUM | DONT_DELETE | READ_ONLY;
 
 utils.InstallConstants(global, [
   // ECMA 262 - 15.1.1.1.
   "NaN", NAN,
   // ECMA-262 - 15.1.1.2.
   "Infinity", INFINITY,
   // ECMA-262 - 15.1.1.2.
   "undefined", UNDEFINED,
 ]);
 
 // Set up non-enumerable function on the global object.
 utils.InstallFunctions(global, DONT_ENUM, [
   "isNaN", GlobalIsNaN,
   "isFinite", GlobalIsFinite,
   "parseInt", GlobalParseInt,
   "parseFloat", GlobalParseFloat,
-  "eval", GlobalEval
+  "eval", GlobalEval,
+  "throwLittleDan", GlobalThrowLittleDan
 ]);
 
 
 // ----------------------------------------------------------------------------
 // Object
 
 // ECMA-262 - 15.2.4.2
 function ObjectToString() {
   if (IS_UNDEFINED(this)) return "[object Undefined]";
   if (IS_NULL(this)) return "[object Null]";
@@ skipping 1700 matching lines @@
 %InstallToContext([
   "global_eval_fun", GlobalEval,
   "object_value_of", ObjectValueOf,
   "object_to_string", ObjectToString,
   "object_define_own_property", DefineOwnPropertyFromAPI,
   "object_get_own_property_descriptor", ObjectGetOwnPropertyDescriptor,
   "to_complete_property_descriptor", ToCompletePropertyDescriptor,
 ]);
 
 })