// This file was procedurally generated from the following sources: // - src/dstr-binding/obj-ptrn-id-init-skipped.case // - src/dstr-binding/default/for-var.template /*--- description: Destructuring initializer is not evaluated when value is not `undefined` (for statement) esid: sec-for-statement-runtime-semantics-labelledevaluation features: [destructuring-binding] flags: [generated] info: | IterationStatement : for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement 1. Let varDcl be the result of evaluating VariableDeclarationList. [...] 13.3.2.4 Runtime Semantics: Evaluation VariableDeclarationList : VariableDeclarationList , VariableDeclaration 1. Let next be the result of evaluating VariableDeclarationList. 2. ReturnIfAbrupt(next). 3. Return the result of evaluating VariableDeclaration. VariableDeclaration : BindingPattern Initializer 1. Let rhs be the result of evaluating Initializer. 2. Let rval be GetValue(rhs). 3. ReturnIfAbrupt(rval). 4. Return the result of performing BindingInitialization for BindingPattern passing rval and undefined as arguments. 13.3.3.7 Runtime Semantics: KeyedBindingInitialization SingleNameBinding : BindingIdentifier Initializeropt [...] 6. If Initializer is present and v is undefined, then [...] [...] ---*/ var initCount = 0; function counter() { initCount += 1; } var iterCount = 0; for (var { w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }; iterCount < 1; ) { assert.sameValue(w, null); assert.sameValue(x, 0); assert.sameValue(y, false); assert.sameValue(z, ''); assert.sameValue(initCount, 0); iterCount += 1; } assert.sameValue(iterCount, 1, 'Iteration occurred as expected'); reportCompare(0, 0);