21801 2008-10-22 09:41:33 -0700 REGRESSION (r37821): YUI date formatting JavaScript puts the letter 'd' in place of the day 2008-11-07 13:29:51 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Mac OS X 10.5 RESOLVED FIXED http://developer.yahoo.com/yui/examples/datatable/dt_basic_clean.html HasReduction, InRadar, Regression P1 Normal --- 1 nate zwarich ap ggaren zwarich oldest_to_newest 96188 0 nate 2008-10-22 09:41:33 -0700 SUMMARY When using the YUI DataTable object, a column formatted as: {key:'date', formatter:YAHOO.widget.DataTable.formatDate, sortable:true, resizeable:true} ...shows the date incorrectly. For example, a date which should be shown as "03/24/1980" is instead shown as "03/d/1980". This does not happen on Safari 3, but it does happen on the latest WebKit nightly (r37764). STEPS TO REPRODUCE Go to the Yahoo UI example at: http://developer.yahoo.com/yui/examples/datatable/dt_basic_clean.html 96190 1 nate 2008-10-22 09:53:36 -0700 This has also been filed as YUI bug #2187202. https://sourceforge.net/tracker2/?func=detail&aid=2187202&group_id=165715&atid=836476 96325 2 ap 2008-10-23 06:27:23 -0700 Confirmed as a regression with r37807. 97518 3 nate 2008-11-03 16:38:50 -0800 Filed with Apple's Bug Reporter (is that what "NeedsRadar" means?). The bug report is: rdar://problem/6341231 97556 4 ap 2008-11-04 03:53:00 -0800 Thank you! NeedsRadar isn't necessarily a request for the reporter to file it with Apple (someone else can do that), but it is slightly better if both bugs are technically reported by the same person. 97900 5 zwarich 2008-11-06 18:38:46 -0800 I have determined that this regressed between r36766 and r36847. I am also assigning this to myself. 97902 6 zwarich 2008-11-06 18:59:38 -0800 There was a typo in my previous post. This regressed in r36821: http://trac.webkit.org/changeset/36821 97907 7 24962 zwarich 2008-11-06 21:07:37 -0800 Created attachment 24962 Reduction Here is a reduction. I can't seem to reduce it any further. The code in the script tag also works in the commandline JSC shell. 97932 8 zwarich 2008-11-07 01:05:48 -0800 The problem here is that the check in CodeGenerator::emitTypeOf() to determine whether a register is constant is wrong after r36821: && static_cast<unsigned>(src2->index()) < m_codeBlock->constantRegisters.size() I am kind of surprised that nothing else hit this. 97934 9 24967 zwarich 2008-11-07 01:41:48 -0800 Created attachment 24967 Fix Here is the simple fix. I will make a bunch of tests based on this original pattern, covering all of the individual typeof cases. 97949 10 ggaren 2008-11-07 10:21:53 -0800 In r36821, I had to fix many call sites making custom calculations about whether a register was constant. I guess I missed one. I think it would be nice to fix this bug by changing this call site to use the isConstant function I wrote -- that way, the next time constant register layout changes, we won't have the same problem again. 97962 11 24972 zwarich 2008-11-07 13:11:34 -0800 Created attachment 24972 Proposed patch Here is a better fix that uses the isConstant() member function I just added to CodeBlock. 97963 12 24972 ggaren 2008-11-07 13:12:58 -0800 Comment on attachment 24972 Proposed patch r=me 97964 13 zwarich 2008-11-07 13:29:51 -0800 Landed in r38230. 24962 2008-11-06 21:07:37 -0800 2008-11-06 21:07:37 -0800 Reduction reduction.html text/html 397 zwarich PGh0bWw+CjxoZWFkPgo8c2NyaXB0IHR5cGU9InRleHQvamF2YXNjcmlwdCI+CnZhciBwcmludCA9 IGFsZXJ0OwoKZnVuY3Rpb24gcmVwbGFjZV9mb3JtYXRzKCkgewogICAgdmFyIG8gPSBbImdldERh dGUiLCAiMCJdOwogICAgaWYgKHR5cGVvZiBvID09PSAic3RyaW5nIikgewogICAgfSBlbHNlIGlm ICh0eXBlb2YgbyA9PT0gJ2Z1bmN0aW9uJykgewogICAgfSBlbHNlIGlmICh0eXBlb2YgbyA9PT0g 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