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* [javascriptcore-test262-automation] changes from git@github.com:WebKit/webkit.git at sha 949e26452cfa153a7f4afe593da97e2fe9e1b706 on Tue Jul 03 2018 14:35:15 GMT-0400 (Eastern Daylight Time)
28 lines
834 B
JavaScript
28 lines
834 B
JavaScript
function assert(a) {
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if (!a)
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throw Error("Bad assertion!");
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}
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function tryChangeNonConfigurableDescriptor(x) {
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Object.defineProperty(arguments, 0, {configurable: false});
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try {
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Object.defineProperty(arguments, 0, x);
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assert(false);
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} catch(e) {
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assert(e instanceof TypeError);
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}
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}
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tryChangeNonConfigurableDescriptor({get: () => {return 50;} });
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tryChangeNonConfigurableDescriptor({set: (x) => {}});
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tryChangeNonConfigurableDescriptor({writable: true, enumerable: false});
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function tryChangeWritableOfNonConfigurableDescriptor(x) {
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Object.defineProperty(arguments, 0, {configurable: false});
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Object.defineProperty(arguments, 0, {writable: true});
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assert(Object.defineProperty(arguments, 0, {writable: false}));
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}
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tryChangeWritableOfNonConfigurableDescriptor("foo");
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