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27 lines
1000 B
JavaScript
27 lines
1000 B
JavaScript
function shouldBe(actual, expected) {
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if (actual !== expected)
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throw new Error('bad value: ' + actual);
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}
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noInline(shouldBe);
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var isUndefinedOrNull = $vm.createBuiltin(`(function (value) { return @isUndefinedOrNull(value); })`);
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noInline(isUndefinedOrNull);
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var masquerader = makeMasquerader();
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for (var i = 0; i < 1e5; ++i) {
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shouldBe(isUndefinedOrNull(null), true);
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shouldBe(isUndefinedOrNull(undefined), true);
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shouldBe(isUndefinedOrNull("Hello"), false);
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shouldBe(isUndefinedOrNull(Symbol("Hello")), false);
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shouldBe(isUndefinedOrNull(42), false);
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shouldBe(isUndefinedOrNull(-42), false);
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shouldBe(isUndefinedOrNull(0), false);
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shouldBe(isUndefinedOrNull(-0), false);
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shouldBe(isUndefinedOrNull(42.2), false);
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shouldBe(isUndefinedOrNull(-42.2), false);
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shouldBe(isUndefinedOrNull({}), false);
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shouldBe(isUndefinedOrNull([]), false);
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shouldBe(isUndefinedOrNull(true), false);
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shouldBe(isUndefinedOrNull(masquerader), false);
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}
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