RESOLVED FIXED Bug 230298
[JSC] Optimize leaf object creation in JSON.parse 
https://bugs.webkit.org/show_bug.cgi?id=230298
Summary [JSC] Optimize leaf object creation in JSON.parse
Yusuke Suzuki
Reported 2021-09-15 00:25:29 PDT
[JSC] Optimize leaf object creation in JSON.parse
Attachments
Patch (35.78 KB, patch)
2021-09-15 00:25 PDT, Yusuke Suzuki 		no flags
DetailsFormatted DiffDiff
Patch (42.70 KB, patch)
2021-09-15 11:32 PDT, Yusuke Suzuki 		keith_miller: review+
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Yusuke Suzuki
Comment 1 2021-09-15 00:25:50 PDT
Created attachment 438220 [details] Patch
Yusuke Suzuki
Comment 2 2021-09-15 11:32:18 PDT
Created attachment 438266 [details] Patch
Keith Miller
Comment 3 2021-09-15 12:05:34 PDT
Comment on attachment 438266 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=438266&action=review r=me > Source/JavaScriptCore/runtime/LiteralParser.cpp:1413 > + case TokRBracket: > + m_parseErrorMessage = "Unexpected token ']'"_s; > + return { }; It seems like a lot of the error messages are the same whenever we create an error message for that token. Should we just make a helper, `setErrorMessageForToken` that sets the m_parseErrorMessage when we error on a given token?
Yusuke Suzuki
Comment 4 2021-09-15 12:09:46 PDT
Comment on attachment 438266 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=438266&action=review >> Source/JavaScriptCore/runtime/LiteralParser.cpp:1413 >> + return { }; > > It seems like a lot of the error messages are the same whenever we create an error message for that token. Should we just make a helper, `setErrorMessageForToken` that sets the m_parseErrorMessage when we error on a given token? Sounds good! Changed.
Yusuke Suzuki
Comment 5 2021-09-15 13:17:15 PDT
Committed r282468 (241716@main): <https://commits.webkit.org/241716@main>
Radar WebKit Bug Importer
Comment 6 2021-09-15 13:18:22 PDT
<rdar://problem/83164908>
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