RESOLVED FIXED 247435
Property access of sparse array in LHS throws unexpected `SyntaxError` 
https://bugs.webkit.org/show_bug.cgi?id=247435
Summary Property access of sparse array in LHS throws unexpected `SyntaxError`
Kanguk Lee
Reported 2022-11-03 09:16:47 PDT
// input.js [ + 0 , ] [ 0 ] = 0 ; // Note: this is fine // [ 0 , ] [ 0 ] = 0 ; _____________________ Hello, Executing the input.js using JSC throws SyntaxError, but it is expected to be terminated normally. Running the input.js with JSC gives --- $ jsc input.js Exception: SyntaxError: Left hand side of operator '=' must be a reference. at input.js:1 --- while other engines behave like --- # V8 $ node input.js // no error # GraalJS $ js input.js // no error --- WebKit version: 615.1.10
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Radar WebKit Bug Importer
Comment 1 2022-11-07 16:41:11 PST
<rdar://problem/102065657>
Yusuke Suzuki
Comment 2 2022-11-07 23:06:54 PST
Pull request: https://github.com/WebKit/WebKit/pull/6241
EWS
Comment 3 2022-11-08 17:48:13 PST
Committed 256471@main (3b17285b1ce6): <https://commits.webkit.org/256471@main> Reviewed commits have been landed. Closing PR #6241 and removing active labels.
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