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LibJS: Add Function() and Function.prototype

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This commit is contained in:
Linus Groh 2020-04-04 14:34:31 +01:00 • committed by Andreas Kling
parent 4d931b524d
commit 2944039d6b
15 changed files with 463 additions and 4 deletions
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29
Libraries/LibJS/Tests/Function.js Normal file
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@ -0,0 +1,29 @@
function assert(x) { if (!x) throw 1; }
try {
assert(Function.length === 1);
assert(Function.prototype.length === 0);
assert(typeof Function() === "function");
assert(typeof new Function() === "function");
assert(Function()() === undefined);
assert(new Function()() === undefined);
assert(Function("return 42")() === 42);
assert(new Function("return 42")() === 42);
assert(new Function("foo", "return foo")(42) === 42);
assert(new Function("foo,bar", "return foo + bar")(1, 2) === 3);
assert(new Function("foo", "bar", "return foo + bar")(1, 2) === 3);
assert(new Function("foo", "bar,baz", "return foo + bar + baz")(1, 2, 3) === 6);
assert(new Function("foo", "bar", "baz", "return foo + bar + baz")(1, 2, 3) === 6);
assert(new Function("foo", "if (foo) { return 42; } else { return 'bar'; }")(true) === 42);
assert(new Function("foo", "if (foo) { return 42; } else { return 'bar'; }")(false) === "bar");
assert(new Function("return typeof Function()")() === "function");
// FIXME: This is equivalent to
// (function (x) { return function (y) { return x + y;} })(1)(2)
// and should totally work, but both currently fail with
// Uncaught exception: [ReferenceError]: 'x' not known
// assert(new Function("x", "return function (y) { return x + y };")(1)(2) === 3);
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e.message);
}