let-obj-ptrn-rest-val-obj.js (1801B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-rest-val-obj.case 3 // - src/dstr-binding/default/for-of-let.template 4 /*--- 5 description: Rest object contains just unextracted data (for-of statement) 6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation 7 features: [object-rest, destructuring-binding] 8 flags: [generated] 9 includes: [propertyHelper.js] 10 info: | 11 IterationStatement : 12 for ( ForDeclaration of AssignmentExpression ) Statement 13 14 [...] 15 3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, 16 lexicalBinding, labelSet). 17 18 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 19 20 [...] 21 3. Let destructuring be IsDestructuring of lhs. 22 [...] 23 5. Repeat 24 [...] 25 h. If destructuring is false, then 26 [...] 27 i. Else 28 i. If lhsKind is assignment, then 29 [...] 30 ii. Else if lhsKind is varBinding, then 31 [...] 32 iii. Else, 33 1. Assert: lhsKind is lexicalBinding. 34 2. Assert: lhs is a ForDeclaration. 35 3. Let status be the result of performing BindingInitialization 36 for lhs passing nextValue and iterationEnv as arguments. 37 [...] 38 ---*/ 39 40 var iterCount = 0; 41 42 for (let {a, b, ...rest} of [{x: 1, y: 2, a: 5, b: 3}]) { 43 assert.sameValue(rest.a, undefined); 44 assert.sameValue(rest.b, undefined); 45 46 verifyProperty(rest, "x", { 47 enumerable: true, 48 writable: true, 49 configurable: true, 50 value: 1 51 }); 52 53 verifyProperty(rest, "y", { 54 enumerable: true, 55 writable: true, 56 configurable: true, 57 value: 2 58 }); 59 60 iterCount += 1; 61 } 62 63 assert.sameValue(iterCount, 1, 'Iteration occurred as expected'); 64 65 reportCompare(0, 0);