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https://github.com/LadybirdBrowser/ladybird
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f7c961136f
Add 39 test cases exercising AST dump output and scope analysis. Tests cover local/global identifier marking, eval/with poisoning, destructuring, closures, hoisting, classes, generators, and more.
26 lines
685 B
JavaScript
26 lines
685 B
JavaScript
// Default parameter expressions create their own scope.
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// The default can reference earlier parameters but not body variables.
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function defaults(a, b = a + 1) {
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let c = b;
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return c;
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}
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// Default parameter with function expression captures the parameter scope.
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function default_with_closure(x, f = () => x) {
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let x2 = f();
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return x2;
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}
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// Default parameter cannot see body `let` declarations (they're in a
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// nested scope), but `var` declarations ARE visible to the body.
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function complex_defaults(a = 1) {
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var v = a;
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let l = a;
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return v + l;
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}
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// Destructuring in parameters with defaults.
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function destruct_defaults({ x = 10 } = {}) {
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return x;
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}
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