// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-rest-ary-elem.case // - src/dstr-binding/default/for-let.template /*--- description: Rest element containing an array BindingElementList pattern (for statement) esid: sec-for-statement-runtime-semantics-labelledevaluation features: [destructuring-binding] flags: [generated] info: | IterationStatement : for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement [...] 7. Let forDcl be the result of evaluating LexicalDeclaration. [...] LexicalDeclaration : LetOrConst BindingList ; 1. Let next be the result of evaluating BindingList. 2. ReturnIfAbrupt(next). 3. Return NormalCompletion(empty). BindingList : BindingList , LexicalBinding 1. Let next be the result of evaluating BindingList. 2. ReturnIfAbrupt(next). 3. Return the result of evaluating LexicalBinding. LexicalBinding : BindingPattern Initializer 1. Let rhs be the result of evaluating Initializer. 2. Let value be GetValue(rhs). 3. ReturnIfAbrupt(value). 4. Let env be the running execution context’s LexicalEnvironment. 5. Return the result of performing BindingInitialization for BindingPattern using value and env as the arguments. 13.3.3.6 Runtime Semantics: IteratorBindingInitialization BindingRestElement : ... BindingPattern 1. Let A be ArrayCreate(0). [...] 3. Repeat [...] b. If iteratorRecord.[[done]] is true, then i. Return the result of performing BindingInitialization of BindingPattern with A and environment as the arguments. [...] 13.3.3.6 Runtime Semantics: IteratorBindingInitialization SingleNameBinding : BindingIdentifier Initializeropt [...] 4. If iteratorRecord.[[done]] is false, then a. Let next be IteratorStep(iteratorRecord.[[iterator]]). b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. c. ReturnIfAbrupt(next). d. If next is false, set iteratorRecord.[[done]] to true. e. Else, [...] i. Let v be IteratorValue(next). ii. If v is an abrupt completion, set iteratorRecord.[[done]] to true. iii. ReturnIfAbrupt(v). 5. If iteratorRecord.[[done]] is true, let v be undefined. [...] 8. Return InitializeReferencedBinding(lhs, v). ---*/ var iterCount = 0; for (let [...[x, y, z]] = [3, 4, 5]; iterCount < 1; ) { assert.sameValue(x, 3); assert.sameValue(y, 4); assert.sameValue(z, 5); iterCount += 1; } assert.sameValue(iterCount, 1, 'Iteration occurred as expected'); reportCompare(0, 0);