const-ary-ptrn-rest-obj-prop-id.js (2102B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case 3 // - src/dstr-binding/default/for-of-const.template 4 /*--- 5 description: Rest element containing an object binding pattern (for-of statement) 6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 IterationStatement : 11 for ( ForDeclaration of AssignmentExpression ) Statement 12 13 [...] 14 3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, 15 lexicalBinding, labelSet). 16 17 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 18 19 [...] 20 3. Let destructuring be IsDestructuring of lhs. 21 [...] 22 5. Repeat 23 [...] 24 h. If destructuring is false, then 25 [...] 26 i. Else 27 i. If lhsKind is assignment, then 28 [...] 29 ii. Else if lhsKind is varBinding, then 30 [...] 31 iii. Else, 32 1. Assert: lhsKind is lexicalBinding. 33 2. Assert: lhs is a ForDeclaration. 34 3. Let status be the result of performing BindingInitialization 35 for lhs passing nextValue and iterationEnv as arguments. 36 [...] 37 38 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 39 40 BindingRestElement : ... BindingPattern 41 42 1. Let A be ArrayCreate(0). 43 [...] 44 3. Repeat 45 [...] 46 b. If iteratorRecord.[[done]] is true, then 47 i. Return the result of performing BindingInitialization of 48 BindingPattern with A and environment as the arguments. 49 [...] 50 ---*/ 51 let length = "outer"; 52 53 var iterCount = 0; 54 55 for (const [...{ 0: v, 1: w, 2: x, 3: y, length: z }] of [[7, 8, 9]]) { 56 assert.sameValue(v, 7); 57 assert.sameValue(w, 8); 58 assert.sameValue(x, 9); 59 assert.sameValue(y, undefined); 60 assert.sameValue(z, 3); 61 62 assert.sameValue(length, "outer", "the length prop is not set as a binding name"); 63 64 iterCount += 1; 65 } 66 67 assert.sameValue(iterCount, 1, 'iteration occurred as expected'); 68 69 reportCompare(0, 0);