array-elem-init-fn-name-fn.js (1527B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-assignment/array-elem-init-fn-name-fn.case 3 // - src/dstr-assignment/default/assignment-expr.template 4 /*--- 5 description: Assignment of function `name` attribute (FunctionExpression) (AssignmentExpression) 6 esid: sec-variable-statement-runtime-semantics-evaluation 7 features: [class, destructuring-binding] 8 flags: [generated] 9 includes: [propertyHelper.js] 10 info: | 11 VariableDeclaration : BindingPattern Initializer 12 13 1. Let rhs be the result of evaluating Initializer. 14 2. Let rval be GetValue(rhs). 15 3. ReturnIfAbrupt(rval). 16 4. Return the result of performing BindingInitialization for 17 BindingPattern passing rval and undefined as arguments. 18 19 AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt 20 [...] 7. If Initializer is present and value is undefined and 21 IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of 22 DestructuringAssignmentTarget are both true, then 23 a. Let hasNameProperty be HasOwnProperty(v, "name"). 24 b. ReturnIfAbrupt(hasNameProperty). 25 c. If hasNameProperty is false, perform SetFunctionName(v, 26 GetReferencedName(lref)). 27 28 ---*/ 29 var xFn, fn; 30 31 var result; 32 var vals = []; 33 34 result = [ xFn = function x() {}, fn = function() {} ] = vals; 35 36 assert(xFn.name !== 'xFn'); 37 38 verifyProperty(fn, 'name', { 39 enumerable: false, 40 writable: false, 41 configurable: true, 42 value: 'fn' 43 }); 44 45 assert.sameValue(result, vals); 46 47 reportCompare(0, 0);