Version 3.7.1

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 156 matching lines @@
   return null;
 }
 
 
 function RegExpExec(string) {
   if (!IS_REGEXP(this)) {
     throw MakeTypeError('incompatible_method_receiver',
                         ['RegExp.prototype.exec', this]);
   }
 
-  if (%_ArgumentsLength() === 0) {
-    var regExpInput = LAST_INPUT(lastMatchInfo);
-    if (IS_UNDEFINED(regExpInput)) {
-      throw MakeError('no_input_to_regexp', [this]);
-    }
-    string = regExpInput;
-  }
   string = TO_STRING_INLINE(string);
   var lastIndex = this.lastIndex;
 
   // Conversion is required by the ES5 specification (RegExp.prototype.exec
   // algorithm, step 5) even if the value is discarded for non-global RegExps.
   var i = TO_INTEGER(lastIndex);
 
   var global = this.global;
   if (global) {
     if (i < 0 || i > string.length) {
@@ skipping 28 matching lines @@
 
 // Section 15.10.6.3 doesn't actually make sense, but the intention seems to be
 // that test is defined in terms of String.prototype.exec. However, it probably
 // means the original value of String.prototype.exec, which is what everybody
 // else implements.
 function RegExpTest(string) {
   if (!IS_REGEXP(this)) {
     throw MakeTypeError('incompatible_method_receiver',
                         ['RegExp.prototype.test', this]);
   }
-  if (%_ArgumentsLength() == 0) {
-    var regExpInput = LAST_INPUT(lastMatchInfo);
-    if (IS_UNDEFINED(regExpInput)) {
-      throw MakeError('no_input_to_regexp', [this]);
-    }
-    string = regExpInput;
-  }
-
   string = TO_STRING_INLINE(string);
 
   var lastIndex = this.lastIndex;
 
   // Conversion is required by the ES5 specification (RegExp.prototype.exec
   // algorithm, step 5) even if the value is discarded for non-global RegExps.
   var i = TO_INTEGER(lastIndex);
 
   if (this.global) {
     if (i < 0 || i > string.length) {
@@ skipping 232 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();