Bug 145738
| Summary: | Deleteting static function twice revives property with undefined | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Yusuke Suzuki <ysuzuki> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | Normal | CC: | fpizlo, ggaren |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Yusuke Suzuki
RegExp.prototype.hasOwnProperty('exec'); // true
delete RegExp.prototype.exec; // true
RegExp.prototype.hasOwnProperty('exec'); // false
delete RegExp.prototype.exec; // true
RegExp.prototype.hasOwnProperty('exec'); // true ???
This is because JSObject::deleteProperty set undefine by `putEntry` if `isValidOffset(...)` is false (deleted).
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Yusuke Suzuki
We'll fix this with issue 145705.
*** This bug has been marked as a duplicate of bug 145705 ***