Implement flag and source getters on RegExp.prototype.

src/js/string.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
 
 var ArrayIndexOf;
 var ArrayJoin;
 var GlobalRegExp = global.RegExp;
 var GlobalString = global.String;
 var InternalArray = utils.InternalArray;
 var InternalPackedArray = utils.InternalPackedArray;
 var MakeRangeError;
 var MakeTypeError;
 var RegExpExec;
 var RegExpExecNoTests;
+var regExpFlagsSymbol = utils.ImportNow("regexp_flags_symbol");
 var RegExpLastMatchInfo;
 
 utils.Import(function(from) {
   ArrayIndexOf = from.ArrayIndexOf;
   ArrayJoin = from.ArrayJoin;
   MakeRangeError = from.MakeRangeError;
   MakeTypeError = from.MakeTypeError;
   RegExpExec = from.RegExpExec;
   RegExpExecNoTests = from.RegExpExecNoTests;
   RegExpLastMatchInfo = from.RegExpLastMatchInfo;
@@ skipping 116 matching lines @@
   return %StringLocaleCompare(TO_STRING(this), TO_STRING(other));
 }
 
 
 // ECMA-262 section 15.5.4.10
 function StringMatchJS(regexp) {
   CHECK_OBJECT_COERCIBLE(this, "String.prototype.match");
 
   var subject = TO_STRING(this);
   if (IS_REGEXP(regexp)) {
-    if (!regexp.global) return RegExpExecNoTests(regexp, subject, 0);
+    if (!REGEXP_GLOBAL(regexp)) return RegExpExecNoTests(regexp, subject, 0);
     var result = %StringMatch(subject, regexp, RegExpLastMatchInfo);
     regexp.lastIndex = 0;
     return result;
   }
   // Non-regexp argument.
   regexp = new GlobalRegExp(regexp);
   return RegExpExecNoTests(regexp, subject, 0);
 }
 
 
@@ skipping 49 matching lines @@
   // ...... non-global search
   // .. string search
   // .... special case that replaces with one single character
   // ...... function replace
   // ...... string replace (with $-expansion)
 
   if (IS_REGEXP(search)) {
     if (!IS_CALLABLE(replace)) {
       replace = TO_STRING(replace);
 
-      if (!search.global) {
+      if (!REGEXP_GLOBAL(search)) {
         // Non-global regexp search, string replace.
         var match = RegExpExec(search, subject, 0);
         if (match == null) {
           search.lastIndex = 0
           return subject;
         }
         if (replace.length == 0) {
           return %_SubString(subject, 0, match[CAPTURE0]) +
                  %_SubString(subject, match[CAPTURE1], subject.length)
         }
         return ExpandReplacement(replace, subject, RegExpLastMatchInfo,
                                  %_SubString(subject, 0, match[CAPTURE0])) +
                %_SubString(subject, match[CAPTURE1], subject.length);
       }
 
       // Global regexp search, string replace.
       search.lastIndex = 0;
       return %StringReplaceGlobalRegExpWithString(
           subject, search, replace, RegExpLastMatchInfo);
     }
 
-    if (search.global) {
+    if (REGEXP_GLOBAL(search)) {
       // Global regexp search, function replace.
       return StringReplaceGlobalRegExpWithFunction(subject, search, replace);
     }
     // Non-global regexp search, function replace.
     return StringReplaceNonGlobalRegExpWithFunction(subject, search, replace);
   }
 
   search = TO_STRING(search);
 
   if (search.length == 1 &&
@@ skipping 909 matching lines @@
   to.StringLastIndexOf = StringLastIndexOfJS;
   to.StringMatch = StringMatchJS;
   to.StringReplace = StringReplace;
   to.StringSlice = StringSlice;
   to.StringSplit = StringSplitJS;
   to.StringSubstr = StringSubstr;
   to.StringSubstring = StringSubstring;
 });
 
 })