// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case // - src/dstr-binding/error/const-stmt.template /*--- description: Error forwarding when IteratorStep returns an abrupt completion (`const` statement) esid: sec-let-and-const-declarations-runtime-semantics-evaluation features: [Symbol.iterator, destructuring-binding] flags: [generated] info: | 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 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). ---*/ var g = {}; g[Symbol.iterator] = function() { return { next: function() { throw new Test262Error(); } }; }; assert.throws(Test262Error, function() { const [x] = g; }); reportCompare(0, 0);