// This file was procedurally generated from the following sources: // - src/dstr-binding/obj-ptrn-prop-id-init.case // - src/dstr-binding/default/for-of-var.template /*--- description: Binding as specified via property name, identifier, and initializer (for-of statement) esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation es6id: 13.7.5.11 features: [destructuring-binding] flags: [generated] info: | IterationStatement : for ( var ForBinding of AssignmentExpression ) Statement [...] 3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult, varBinding, labelSet). 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation [...] 3. Let destructuring be IsDestructuring of lhs. [...] 5. Repeat [...] h. If destructuring is false, then [...] i. Else i. If lhsKind is assignment, then [...] ii. Else if lhsKind is varBinding, then 1. Assert: lhs is a ForBinding. 2. Let status be the result of performing BindingInitialization for lhs passing nextValue and undefined as the arguments. [...] 13.3.3.7 Runtime Semantics: KeyedBindingInitialization SingleNameBinding : BindingIdentifier Initializeropt [...] 8. Return InitializeReferencedBinding(lhs, v). ---*/ var iterCount = 0; for (var { x: y = 33 } of [{ }]) { assert.sameValue(y, 33); assert.throws(ReferenceError, function() { x; }); iterCount += 1; } assert.sameValue(iterCount, 1, 'Iteration occurred as expected');