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38 lines
1.4 KiB
JavaScript
38 lines
1.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
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// - src/dstr-binding/default/const-stmt.template
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/*---
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description: SingleNameBinding assigns name to "anonymous" functions (`const` statement)
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esid: sec-let-and-const-declarations-runtime-semantics-evaluation
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es6id: 13.3.1.4
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features: [destructuring-binding]
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flags: [generated]
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info: |
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LexicalBinding : BindingPattern Initializer
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1. Let rhs be the result of evaluating Initializer.
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2. Let value be GetValue(rhs).
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3. ReturnIfAbrupt(value).
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4. Let env be the running execution context's LexicalEnvironment.
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5. Return the result of performing BindingInitialization for BindingPattern
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using value and env as the arguments.
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13.3.3.7 Runtime Semantics: KeyedBindingInitialization
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SingleNameBinding : BindingIdentifier Initializeropt
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[...]
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6. If Initializer is present and v is undefined, then
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[...]
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d. If IsAnonymousFunctionDefinition(Initializer) is true, then
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i. Let hasNameProperty be HasOwnProperty(v, "name").
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ii. ReturnIfAbrupt(hasNameProperty).
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iii. If hasNameProperty is false, perform SetFunctionName(v,
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bindingId).
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---*/
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const { fn = function () {}, xFn = function x() {} } = {};
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assert.sameValue(fn.name, 'fn');
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assert.notSameValue(xFn.name, 'xFn');
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