Bug 247435
| Summary: | Property access of sparse array in LHS throws unexpected `SyntaxError` | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Kanguk Lee <p51lee> |
| Component: | JavaScriptCore | Assignee: | Yusuke Suzuki <ysuzuki> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | CC: | mark.lam, webkit-bug-importer, ysuzuki |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Local Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Kanguk Lee
// 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
| Attachments | ||
|---|---|---|
| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/102065657>
Yusuke Suzuki
Pull request: https://github.com/WebKit/WebKit/pull/6241
EWS
Committed 256471@main (3b17285b1ce6): <https://commits.webkit.org/256471@main>
Reviewed commits have been landed. Closing PR #6241 and removing active labels.