// This file was procedurally generated from the following sources: // - src/dstr-binding/obj-ptrn-prop-ary-init.case // - src/dstr-binding/default/for-of-const.template /*--- description: Object binding pattern with "nested" array binding pattern using initializer (for-of statement) esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation features: [destructuring-binding] flags: [generated] info: | IterationStatement : for ( ForDeclaration of AssignmentExpression ) Statement [...] 3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, lexicalBinding, 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 [...] iii. Else, 1. Assert: lhsKind is lexicalBinding. 2. Assert: lhs is a ForDeclaration. 3. Let status be the result of performing BindingInitialization for lhs passing nextValue and iterationEnv as arguments. [...] 13.3.3.7 Runtime Semantics: KeyedBindingInitialization [...] 3. If Initializer is present and v is undefined, then a. Let defaultValue be the result of evaluating Initializer. b. Let v be GetValue(defaultValue). c. ReturnIfAbrupt(v). 4. Return the result of performing BindingInitialization for BindingPattern passing v and environment as arguments. ---*/ var iterCount = 0; for (const { w: [x, y, z] = [4, 5, 6] } of [{}]) { assert.sameValue(x, 4); assert.sameValue(y, 5); assert.sameValue(z, 6); assert.throws(ReferenceError, function() { w; }); iterCount += 1; } assert.sameValue(iterCount, 1, 'iteration occurred as expected'); reportCompare(0, 0);