73995 2011-12-07 04:26:54 -0800 StringBuilderTest.Append and StringBuilderTest.ToStringPreserveCapacity are failing. 2011-12-07 18:20:15 -0800 1 1 1 Unclassified WebKit Web Template Framework 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 vsevik msaboff darin ggaren msaboff oliver rniwa wangxianzhu oldest_to_newest 516594 0 vsevik 2011-12-07 04:26:54 -0800 StringBuilderTest.Append StringBuilderTest.ToStringPreserveCapacity are failing on Chromium Linux since http://trac.webkit.org/changeset/102017. 516595 1 vsevik 2011-12-07 04:27:58 -0800 First failure: http://build.webkit.org/builders/Chromium%20Linux%20Release%20%28Tests%29/builds/26827 516600 2 vsevik 2011-12-07 04:42:13 -0800 They are actually failing everywhere. http://build.webkit.org/builders/Chromium%20Mac%20Release%20%28Tests%29/builds/3151 http://build.webkit.org/builders/SnowLeopard%20Intel%20Debug%20%28Tests%29/builds/3432 516711 3 msaboff 2011-12-07 10:19:47 -0800 *** Bug 73983 has been marked as a duplicate of this bug. *** 516724 4 msaboff 2011-12-07 10:27:56 -0800 The problem is that when an 8 bit StringBuilder is accessed using the "characters()" method, a 16 bit copy is created. If more data is appended to the StringBuilder, the 16 bit shadow copy is not updated or invalidated. 517022 5 118293 msaboff 2011-12-07 17:42:09 -0800 Created attachment 118293 Patch with fix and test re-enabling 517028 6 118293 darin 2011-12-07 17:45:23 -0800 Comment on attachment 118293 Patch with fix and test re-enabling View in context: https://bugs.webkit.org/attachment.cgi?id=118293&action=review > Source/JavaScriptCore/wtf/text/StringBuilder.h:209 > + mutable unsigned m_valid16BitShadowlen; I’d spell out length and capitalize it: m_valid16BitShadowLength > Source/JavaScriptCore/wtf/text/StringImpl.cpp:223 > if (hasTerminatingNullCharacter()) { > - len--; > - m_copyData16[len] = '\0'; > + end--; > + m_copyData16[end] = '\0'; > } Should this really go inside the helper function? Is this covered by test cases? Also, why not just up convert the 8-bit terminating null to the 16-bit terminating null. 517030 7 118293 rniwa 2011-12-07 17:45:49 -0800 Comment on attachment 118293 Patch with fix and test re-enabling View in context: https://bugs.webkit.org/attachment.cgi?id=118293&action=review > Source/JavaScriptCore/ChangeLog:14 > + Reviewed by NOBODY (OOPS!). This line should appear above the change description. 517036 8 rniwa 2011-12-07 17:51:29 -0800 Oops, sorry. It appears that I've cleared Darin's r+. 517070 9 msaboff 2011-12-07 18:20:15 -0800 Committed r102298: <http://trac.webkit.org/changeset/102298> 118293 2011-12-07 17:42:09 -0800 2011-12-07 17:48:55 -0800 Patch with fix and test re-enabling 73995.patch text/plain 7271 msaboff SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMTAyMjg4KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDMwIEBA CisyMDExLTEyLTA3ICBNaWNoYWVsIFNhYm9mZiAgPG1zYWJvZmZAYXBwbGUuY29tPgorCisgICAg ICAgIFN0cmluZ0J1aWxkZXJUZXN0LkFwcGVuZCBhbmQgU3RyaW5nQnVpbGRlclRlc3QuVG9TdHJp bmdQcmVzZXJ2ZUNhcGFjaXR5IGFyZSBmYWlsaW5nLgorICAgICAgICBodHRwczovL2J1Z3Mud2Vi a2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9NzM5OTUKKworICAgICAgICBQcm9ibGVtIHdhcyB0aGF0 IGEgY2FsbCB0byBjaGFyYWN0ZXJzIG9uIGFuIFN0cmluZ0ltcGwgYXNzb2NpYXRlZAorICAgICAg 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