ary-ptrn-rest-id-direct.js (1278B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/dstr-binding/ary-ptrn-rest-id-direct.case 4 // - src/dstr-binding/default/async-gen-func-expr.template 5 /*--- 6 description: Lone rest element (direct binding) (async generator function expression) 7 esid: sec-asyncgenerator-definitions-evaluation 8 features: [async-iteration] 9 flags: [generated, async] 10 includes: [compareArray.js] 11 info: | 12 AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) { 13 AsyncGeneratorBody } 14 15 [...] 16 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 17 AsyncGeneratorBody, scope, strict). 18 [...] 19 20 21 Runtime Semantics: IteratorBindingInitialization 22 23 BindingRestElement : ... BindingIdentifier 24 25 [...] 26 2. Let A be ! ArrayCreate(0). 27 3. Let n be 0. 28 4. Repeat, 29 [...] 30 f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue). 31 g. Set n to n + 1. 32 33 ---*/ 34 35 36 var callCount = 0; 37 var f; 38 f = async function*([...x]) { 39 assert(Array.isArray(x)); 40 assert.compareArray(x, [1]); 41 callCount = callCount + 1; 42 }; 43 44 f([1]).next().then(() => { 45 assert.sameValue(callCount, 1, 'invoked exactly once'); 46 }).then($DONE, $DONE);