// |reftest| async // This file was procedurally generated from the following sources: // - src/dstr-binding-for-await/obj-ptrn-id-init-throws.case // - src/dstr-binding-for-await/error/for-await-of-async-gen-var.template /*--- description: Error thrown when evaluating the initializer (for-await-of statement) esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation features: [destructuring-binding, async-iteration] flags: [generated, async] info: | IterationStatement : for await ( ForDeclaration of AssignmentExpression ) Statement [...] 2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, lexicalBinding, labelSet, async). 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation [...] 4. Let destructuring be IsDestructuring of lhs. [...] 6. Repeat [...] j. If destructuring is false, then [...] k. 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 SingleNameBinding : BindingIdentifier Initializer_opt [...] 6. 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). ---*/ function thrower() { throw new Test262Error(); } async function * gen() { for await (var { x = thrower() } of [{}]) { return; } } gen().next() .then(_ => { throw new Test262Error("Expected async function to reject, but resolved."); }, ({ constructor }) => { assert.sameValue(constructor, Test262Error); }) .then($DONE, $DONE);