obj-id-init-fn-name-gen.js (1858B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-assignment/obj-id-init-fn-name-gen.case 3 // - src/dstr-assignment/default/for-of.template 4 /*--- 5 description: Assignment of function `name` attribute (GeneratorExpression) (For..of statement) 6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation 7 features: [generators, destructuring-binding] 8 flags: [generated] 9 includes: [propertyHelper.js] 10 info: | 11 IterationStatement : 12 for ( LeftHandSideExpression of AssignmentExpression ) Statement 13 14 1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« », 15 AssignmentExpression, iterate). 16 2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement, 17 keyResult, assignment, labelSet). 18 19 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 20 21 [...] 22 4. If destructuring is true and if lhsKind is assignment, then 23 a. Assert: lhs is a LeftHandSideExpression. 24 b. Let assignmentPattern be the parse of the source text corresponding to 25 lhs using AssignmentPattern as the goal symbol. 26 [...] 27 28 AssignmentProperty : IdentifierReference Initializeropt 29 [...] 6. If Initializeropt is present and v is undefined, then 30 [...] 31 d. If IsAnonymousFunctionDefinition(Initializer) is true, then 32 i. Let hasNameProperty be HasOwnProperty(v, "name"). 33 ii. ReturnIfAbrupt(hasNameProperty). 34 iii. If hasNameProperty is false, perform SetFunctionName(v, P). 35 36 ---*/ 37 var xGen, gen; 38 39 var counter = 0; 40 41 for ({ xGen = function* x() {}, gen = function*() {} } of [{}]) { 42 assert.notSameValue(xGen.name, 'xGen'); 43 44 verifyProperty(gen, 'name', { 45 enumerable: false, 46 writable: false, 47 configurable: true, 48 value: 'gen' 49 }); 50 counter += 1; 51 } 52 53 assert.sameValue(counter, 1); 54 55 reportCompare(0, 0);