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LibJS: Allow null or undefined as a bound |this| value in strict mode
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2 changed files with 12 additions and 9 deletions
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@ -103,15 +103,17 @@ try {
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assert(Make5() === 5);
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assert(new Make5().valueOf() === 5);
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// FIXME: Uncomment me when strict mode is implemented
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// function strictIdentity() {
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// return this;
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// }
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// Null or undefined should be passed through as a |this| value in strict mode.
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(() => {
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"use strict";
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function strictIdentity() {
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return this;
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}
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// assert(strictIdentity.bind()() === undefined);
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// assert(strictIdentity.bind(null)() === null);
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// assert(strictIdentity.bind(undefined)() === undefined);
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// })();
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assert(strictIdentity.bind()() === undefined);
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assert(strictIdentity.bind(null)() === null);
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assert(strictIdentity.bind(undefined)() === undefined);
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})();
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// Arrow functions can not have their |this| value set.
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assert((() => this).bind("foo")() === globalThis)
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