Subj : rhino bug with String.prototype.replace(re, func)
To   : netscape.public.mozilla.jseng
From : mda@discerning.com (Mark D. Anderson)
Date : Mon Aug 25 2003 03:38 pm

In Rhino 1_5R5pre,

   var re = /(\s)?/g;
   var s = "foo";
   s.replace(re, function() {return ''});

results in the stack trace below.
it works in SpiderMonkey.
of course the code above is stupid, but it is a simplified version of
non-stupid but more complicated code that revealed the bug to me.

-mda

Exception in thread "main" java.lang.NullPointerException
	at org.mozilla.javascript.regexp.ReplaceData.findReplen(RegExpImpl.java:486)
	at org.mozilla.javascript.regexp.ReplaceData.doGlobal(RegExpImpl.java:361)
	at org.mozilla.javascript.regexp.RegExpImpl.matchOrReplace(RegExpImpl.java:186)
	at org.mozilla.javascript.regexp.RegExpImpl.replace(RegExpImpl.java:105)
	at org.mozilla.javascript.NativeString.execMethod(NativeString.java:244)
	at org.mozilla.javascript.IdFunction.call(IdFunction.java:78)
	at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1195)
	at org.mozilla.javascript.gen.c2.call(/Users/mda/Sites/burstproject/turds/quicktest.js:3)
	at org.mozilla.javascript.gen.c2.exec(/Users/mda/Sites/burstproject/turds/quicktest.js)
	at org.mozilla.javascript.Context.evaluateReader(Context.java:806)
	at org.mozilla.javascript.tools.shell.Main.evaluateReader(Main.java:363)
	at org.mozilla.javascript.tools.shell.Main.processFileSecure(Main.java:354)
	at org.mozilla.javascript.tools.shell.Main.processFile(Main.java:291)
	at org.mozilla.javascript.tools.shell.Main.processSource(Main.java:283)
	at org.mozilla.javascript.tools.shell.Main.exec(Main.java:103)
	at org.mozilla.javascript.tools.shell.Main.main(Main.java:76)

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