// This file was procedurally generated from the following sources: // - src/dstr-assignment/array-empty-iter-close-err.case // - src/dstr-assignment/error/for-of.template /*--- description: Abrupt completion returned from IteratorClose (For..of statement) esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation features: [Symbol.iterator, destructuring-binding] flags: [generated] info: | IterationStatement : for ( LeftHandSideExpression of AssignmentExpression ) Statement 1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« », AssignmentExpression, iterate). 2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement, keyResult, assignment, labelSet). 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation [...] 4. If destructuring is true and if lhsKind is assignment, then a. Assert: lhs is a LeftHandSideExpression. b. Let assignmentPattern be the parse of the source text corresponding to lhs using AssignmentPattern as the goal symbol. [...] ArrayAssignmentPattern : [ ] 1. Let iterator be GetIterator(value). 2. ReturnIfAbrupt(iterator). 3. Return IteratorClose(iterator, NormalCompletion(empty)). ---*/ var nextCount = 0; var returnCount = 0; var iterable = {}; var iterator = { next: function() { nextCount += 1; return { done: true }; }, return: function() { returnCount += 1; throw new Test262Error(); } }; iterable[Symbol.iterator] = function() { return iterator; }; var counter = 0; assert.throws(Test262Error, function() { for ([] of [iterable]) { counter += 1; } counter += 1; }); assert.sameValue(counter, 0); assert.sameValue(nextCount, 0); assert.sameValue(returnCount, 1); reportCompare(0, 0);