async-gen-yield-spread-arr-single.js (1261B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-spread-arr-single.case 4 // - src/async-generators/default/async-obj-method.template 5 /*--- 6 description: Use yield value in a array spread position (Async generator method) 7 esid: prod-AsyncGeneratorMethod 8 features: [async-iteration] 9 flags: [generated, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorMethod : 14 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } 15 16 17 Array Initializer 18 19 SpreadElement[Yield, Await]: 20 ...AssignmentExpression[+In, ?Yield, ?Await] 21 22 ---*/ 23 var arr = ['a', 'b', 'c']; 24 25 var callCount = 0; 26 27 var gen = { 28 async *method() { 29 callCount += 1; 30 yield [...yield]; 31 } 32 }.method; 33 34 var iter = gen(); 35 36 iter.next(false); 37 var item = iter.next(arr); 38 39 item.then(({ done, value }) => { 40 assert.notSameValue(value, arr, 'value is a new array'); 41 assert(Array.isArray(value), 'value is an Array exotic object'); 42 assert.sameValue(value.length, 3) 43 assert.sameValue(value[0], 'a'); 44 assert.sameValue(value[1], 'b'); 45 assert.sameValue(value[2], 'c'); 46 assert.sameValue(done, false); 47 }).then($DONE, $DONE); 48 49 assert.sameValue(callCount, 1);