RESOLVED FIXED206131
Object.preventExtensions should throw if not successful 
https://bugs.webkit.org/show_bug.cgi?id=206131
Summary Object.preventExtensions should throw if not successful
Alexey Shvayka
Reported 2020-01-11 10:16:36 PST
Test case: Object.preventExtensions(new Proxy({}, { preventExtensions: () => false })) Expected: Throws TypeError Actual: Returns Proxy ECMA262: https://tc39.es/ecma262/#sec-object.preventextensions (step 3) Test262: https://test262.report/browse/built-ins/Object/preventExtensions/throws-when-false.js
Attachments
Patch (3.87 KB, patch)
2020-01-11 12:30 PST, Alexey Shvayka 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Alexey Shvayka
Comment 1 2020-01-11 12:30:34 PST
Created attachment 387443 [details] Patch
Ross Kirsling
Comment 2 2020-01-15 10:23:27 PST
Comment on attachment 387443 [details] Patch r=me
WebKit Commit Bot
Comment 3 2020-01-15 11:57:44 PST
Comment on attachment 387443 [details] Patch Clearing flags on attachment: 387443 Committed r254626: <https://trac.webkit.org/changeset/254626>
WebKit Commit Bot
Comment 4 2020-01-15 11:57:45 PST
All reviewed patches have been landed. Closing bug.
Radar WebKit Bug Importer
Comment 5 2020-01-15 11:58:17 PST
<rdar://problem/58613904>
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