async-func-dstr-let-obj-init-undefined.js (1796B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/dstr-binding-for-await/obj-init-undefined.case 4 // - src/dstr-binding-for-await/error/for-await-of-async-func-let.template 5 /*--- 6 description: Value specifed for object binding pattern must be object coercible (undefined) (for-await-of statement) 7 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation 8 features: [destructuring-binding, async-iteration] 9 flags: [generated, async] 10 info: | 11 IterationStatement : 12 for await ( ForDeclaration of AssignmentExpression ) Statement 13 14 [...] 15 2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, 16 lexicalBinding, labelSet, async). 17 18 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 19 20 [...] 21 4. Let destructuring be IsDestructuring of lhs. 22 [...] 23 6. Repeat 24 [...] 25 j. If destructuring is false, then 26 [...] 27 k. Else 28 i. If lhsKind is assignment, then 29 [...] 30 ii. Else if lhsKind is varBinding, then 31 [...] 32 iii. Else, 33 1. Assert: lhsKind is lexicalBinding. 34 2. Assert: lhs is a ForDeclaration. 35 3. Let status be the result of performing BindingInitialization 36 for lhs passing nextValue and iterationEnv as arguments. 37 [...] 38 39 Runtime Semantics: BindingInitialization 40 41 ObjectBindingPattern : { } 42 43 1. Return NormalCompletion(empty). 44 ---*/ 45 46 async function fn() { 47 for await (let {} of [undefined]) { 48 return; 49 } 50 } 51 52 fn() 53 .then(_ => { 54 throw new Test262Error("Expected async function to reject, but resolved."); 55 }, ({ constructor }) => { 56 assert.sameValue(constructor, TypeError); 57 58 }) 59 .then($DONE, $DONE);