247606 2022-11-08 03:27:05 -0800 Access of template literal in LHS throws unexpected `SyntaxError` 2022-11-09 14:27:46 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Local Build Mac (Apple Silicon) macOS 13 RESOLVED FIXED InRadar P2 Normal --- 1 p51lee ysuzuki mark.lam webkit-bug-importer ysuzuki oldest_to_newest 1910987 0 p51lee 2022-11-08 03:27:05 -0800 // 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. This bug looks similar to the bugs I found: https://bugs.webkit.org/show_bug.cgi?id=247435 and https://bugs.webkit.org/show_bug.cgi?id=247497. However, I personally think this may not be a duplicate of Bug 247435 and Bug 247497, so please let me know if this bug is duplicated or not. Running the input.js with JSC results in: --- $ 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 1911298 1 webkit-bug-importer 2022-11-09 10:29:00 -0800 <rdar://problem/102148789> 1911336 2 ysuzuki 2022-11-09 12:24:43 -0800 Pull request: https://github.com/WebKit/WebKit/pull/6312 1911362 3 ews-feeder 2022-11-09 14:27:44 -0800 Committed 256500@main (8900c3f92d08): <https://commits.webkit.org/256500@main> Reviewed commits have been landed. Closing PR #6312 and removing active labels.