yield-identifier-non-strict.js (1188B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-identifier-non-strict.case 4 // - src/async-generators/non-strict/async-declaration.template 5 /*--- 6 description: Use of yield as a valid identifier in a function body inside a generator body in non strict mode (Async generator function declaration - valid for non-strict only cases) 7 esid: prod-AsyncGeneratorDeclaration 8 features: [async-iteration] 9 flags: [generated, noStrict, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorDeclaration: 14 async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { 15 AsyncGeneratorBody } 16 17 ---*/ 18 19 20 var callCount = 0; 21 22 async function *gen() { 23 callCount += 1; 24 return (function(arg) { 25 var yield = arg + 1; 26 return yield; 27 }(yield)) 28 } 29 30 var iter = gen(); 31 32 var item = iter.next(); 33 34 item.then(({ done, value }) => { 35 assert.sameValue(done, false); 36 assert.sameValue(value, undefined); 37 }); 38 39 item = iter.next(42); 40 41 item.then(({ done, value }) => { 42 assert.sameValue(done, true); 43 assert.sameValue(value, 43); 44 }).then($DONE, $DONE); 45 46 assert.sameValue(callCount, 1);