Version 3.6.5

src/regexp.js

 // 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 77 matching lines @@
     DoConstructRegExp(this, pattern, flags);
   } else {
     // RegExp : Called as function; see ECMA-262, section 15.10.3.1.
     if (IS_REGEXP(pattern) && IS_UNDEFINED(flags)) {
       return pattern;
     }
     return new $RegExp(pattern, flags);
   }
 }
 
-
 // Deprecated RegExp.prototype.compile method.  We behave like the constructor
 // were called again.  In SpiderMonkey, this method returns the regexp object.
 // In JSC, it returns undefined.  For compatibility with JSC, we match their
 // behavior.
-function CompileRegExp(pattern, flags) {
+function RegExpCompile(pattern, flags) {
   // Both JSC and SpiderMonkey treat a missing pattern argument as the
   // empty subject string, and an actual undefined value passed as the
   // pattern as the string 'undefined'.  Note that JSC is inconsistent
   // here, treating undefined values differently in
   // RegExp.prototype.compile and in the constructor, where they are
   // the empty string.  For compatibility with JSC, we match their
   // behavior.
+  if (this == $RegExp.prototype) {
+    // We don't allow recompiling RegExp.prototype.
+    throw MakeTypeError('incompatible_method_receiver',
+                        ['RegExp.prototype.compile', this]);
+  }
   if (IS_UNDEFINED(pattern) && %_ArgumentsLength() != 0) {
     DoConstructRegExp(this, 'undefined', flags);
   } else {
     DoConstructRegExp(this, pattern, flags);
   }
 }
 
 
 function DoRegExpExec(regexp, string, index) {
   var result = %_RegExpExec(regexp, string, index, lastMatchInfo);
@@ skipping 280 matching lines @@
 // Used internally by replace regexp with function.
 // The array has the format of an "apply" argument for a replacement
 // function.
 var lastMatchInfoOverride = null;
 
 // -------------------------------------------------------------------
 
 function SetUpRegExp() {
   %CheckIsBootstrapping();
   %FunctionSetInstanceClassName($RegExp, 'RegExp');
-  %FunctionSetPrototype($RegExp, new $Object());
   %SetProperty($RegExp.prototype, 'constructor', $RegExp, DONT_ENUM);
   %SetCode($RegExp, RegExpConstructor);
 
   InstallFunctions($RegExp.prototype, DONT_ENUM, $Array(
     "exec", RegExpExec,
     "test", RegExpTest,
     "toString", RegExpToString,
-    "compile", CompileRegExp
+    "compile", RegExpCompile
   ));
 
   // The length of compile is 1 in SpiderMonkey.
   %FunctionSetLength($RegExp.prototype.compile, 1);
 
   // The properties input, $input, and $_ are aliases for each other.  When this
   // value is set the value it is set to is coerced to a string.
   // Getter and setter for the input.
   function RegExpGetInput() {
     var regExpInput = LAST_INPUT(lastMatchInfo);
@@ skipping 49 matching lines @@
   %DefineAccessor($RegExp, "$'", GETTER, RegExpGetRightContext, DONT_ENUM | DONT_DELETE);
   %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE);
 
   for (var i = 1; i < 10; ++i) {
     %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_DELETE);
     %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE);
   }
 }
 
 SetUpRegExp();