33 lines
861 B
JavaScript
33 lines
861 B
JavaScript
function assert(x) { if (!x) throw 1; }
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// FIXME: Just "+x" doesn't parse currently,
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// so we use "x - 0", which is effectively the same.
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// "0 + x" would _not_ work in all cases.
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function n(x) { return x - 0; }
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try {
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assert(n(false) === 0);
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assert(n(true) === 1);
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assert(n(null) === 0);
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assert(n([]) === 0);
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assert(n([[[[[]]]]]) === 0);
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assert(n([[[[[42]]]]]) === 42);
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assert(n("") === 0);
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assert(n("42") === 42);
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assert(n(42) === 42);
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// FIXME: returns NaN
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// assert(n("1.23") === 1.23)
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// FIXME: chokes on ASSERT
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// assert(n(1.23) === 1.23);
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assert(isNaN(n(undefined)));
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assert(isNaN(n({})));
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assert(isNaN(n({a: 1})));
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assert(isNaN(n([1, 2, 3])));
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assert(isNaN(n([[[["foo"]]]])));
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assert(isNaN(n("foo")));
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console.log("PASS");
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} catch (e) {
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console.log("FAIL: " + e);
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}
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