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barraclough@apple.com authored
https://bugs.webkit.org/show_bug.cgi?id=79331 Reviewed by Sam Weinig. Need to inspect all properties, including static ones. This exposes a couple of bugs in Array & Arguments: - getOwnPropertyDescriptor doesn't correctly report the writable attribute of array length. - Arguments object's defineOwnProperty does not handle callee/caller/length correctly. Source/JavaScriptCore: * runtime/Arguments.cpp: (JSC::Arguments::defineOwnProperty): - Add handling for callee/caller/length. * runtime/JSArray.cpp: (JSC::JSArray::getOwnPropertyDescriptor): - report length's writability correctly. * runtime/ObjectConstructor.cpp: (JSC::objectConstructorSeal): (JSC::objectConstructorFreeze): (JSC::objectConstructorIsSealed): (JSC::objectConstructorIsFrozen): - Add spec-based implementation for non-final objects. LayoutTests: * fast/js/preventExtensions-expected.txt: * fast/js/script-tests/preventExtensions.js: - Added tests. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@108651 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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