mirror of https://github.com/tc39/test262.git
39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/annex-b-fns/func-init.case
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// - src/annex-b-fns/func/switch-dflt.template
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/*---
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description: Variable binding is initialized to `undefined` in outer scope (Funtion declaration in the `default` clause of a `switch` statement in function scope)
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esid: sec-web-compat-functiondeclarationinstantiation
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es6id: B.3.3.1
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flags: [generated, noStrict]
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info: >
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B.3.3.1 Changes to FunctionDeclarationInstantiation
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[...]
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2. If instantiatedVarNames does not contain F, then
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a. Perform ! varEnvRec.CreateMutableBinding(F, false).
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b. Perform varEnvRec.InitializeBinding(F, undefined).
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c. Append F to instantiatedVarNames.
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[...]
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---*/
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var init, changed;
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(function() {
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init = f;
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f = 123;
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changed = f;
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switch (1) {
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default:
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function f() { }
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}
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}());
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assert.sameValue(init, undefined, 'binding is initialized to `undefined`');
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assert.sameValue(changed, 123, 'binding is mutable');
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assert.throws(ReferenceError, function() {
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f;
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}, 'global binding is not created');
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