17027 2008-01-26 18:20:38 -0800 Incorrect Function.toString behaviour with read/modify/write operators performed on negative numbers 2008-02-11 17:02:21 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Mac OS X 10.4 RESOLVED FIXED HasReduction P2 Normal --- 13638 1 oliver darin darin jruderman oldest_to_newest 68332 0 oliver 2008-01-26 18:20:38 -0800 Function.toString loses necessary parentheses when performing read/modify/write operations like >>>=, etc on *negative* numbers. eg. function f() { (-1) >>>= 1; } becomes function f() { -1 >>>= 1; } 68334 1 darin 2008-01-26 19:10:50 -0800 I think the trick here is that in SourceStream::operator<<(double) we need to treat the "-" sign from the negative number as an operator, since that's how the lexer is going to treat it. Thus we need to check the precedence against the precedence of unary minus and set needParens in that case. This can all be fixed on the first line of that function where we initialize a needParens bool. Assigning to myself, assuming that if Ollie was going to fix this he'd have assigned it to himself. 68336 2 darin 2008-01-26 19:22:28 -0800 I found an even better way to fix this, by just returning the appropriate precedence. I'll make the test exhaustive now. 68337 3 oliver 2008-01-26 19:35:45 -0800 That's basically what i was thinking :D However i decided to get food :D 68338 4 18715 darin 2008-01-26 20:05:26 -0800 Created attachment 18715 patch 68339 5 18715 oliver 2008-01-26 20:15:05 -0800 Comment on attachment 18715 patch r=m1, with the additional tests i requested on irc 68340 6 darin 2008-01-26 20:23:15 -0800 Committed revision 29815. 18715 2008-01-26 20:05:26 -0800 2008-01-26 20:15:05 -0800 patch NumberToStringPatch.txt text/plain 12074 darin SW5kZXg6IEphdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBKYXZhU2NyaXB0 Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDI5ODEzKQorKysgSmF2YVNjcmlwdENvcmUvQ2hhbmdl TG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMzQgQEAKKzIwMDgtMDEtMjYgIERhcmluIEFk bGVyICA8ZGFyaW5AYXBwbGUuY29tPgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09Q UyEpLgorCisgICAgICAgIC0gZml4IGh0dHA6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dp 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