c60dc84a33
We were interpreting "undefined" as a variable lookup failure in some cases and throwing a ReferenceError exception instead of treating it as the valid value "undefined". This patch wraps the result of variable lookup in Optional<>, which allows us to only throw ReferenceError when lookup actually fails.
13 lines
289 B
JavaScript
13 lines
289 B
JavaScript
function assert(x) { if (!x) throw 1; }
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function foo(a, b) { return a + b; }
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try {
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assert(isNaN(foo()) === true);
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assert(isNaN(foo(1)) === true);
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assert(foo(2, 3) === 5);
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assert(foo(2, 3, 4) === 5);
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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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