obj-ptrn-id-init-fn-name-fn.js (1398B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case 3 // - src/dstr-binding/default/const-stmt.template 4 /*--- 5 description: SingleNameBinding assigns name to "anonymous" functions (`const` statement) 6 esid: sec-let-and-const-declarations-runtime-semantics-evaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 LexicalBinding : BindingPattern Initializer 11 12 1. Let rhs be the result of evaluating Initializer. 13 2. Let value be GetValue(rhs). 14 3. ReturnIfAbrupt(value). 15 4. Let env be the running execution context's LexicalEnvironment. 16 5. Return the result of performing BindingInitialization for BindingPattern 17 using value and env as the arguments. 18 19 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 20 21 SingleNameBinding : BindingIdentifier Initializeropt 22 23 [...] 24 6. If Initializer is present and v is undefined, then 25 [...] 26 d. If IsAnonymousFunctionDefinition(Initializer) is true, then 27 i. Let hasNameProperty be HasOwnProperty(v, "name"). 28 ii. ReturnIfAbrupt(hasNameProperty). 29 iii. If hasNameProperty is false, perform SetFunctionName(v, 30 bindingId). 31 ---*/ 32 33 const { fn = function () {}, xFn = function x() {} } = {}; 34 35 assert.sameValue(fn.name, 'fn'); 36 assert.notSameValue(xFn.name, 'xFn'); 37 38 reportCompare(0, 0);