yield-identifier-spread-strict-strict.js (1261B)
1 // |reftest| error:SyntaxError 2 'use strict'; 3 // This file was procedurally generated from the following sources: 4 // - src/async-generators/yield-identifier-spread-strict.case 5 // - src/async-generators/default/async-class-decl-method.template 6 /*--- 7 description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Async Generator method as a ClassDeclaration element) 8 esid: prod-AsyncGeneratorMethod 9 features: [object-spread, async-iteration] 10 flags: [generated, onlyStrict] 11 negative: 12 phase: parse 13 type: SyntaxError 14 info: | 15 ClassElement : 16 MethodDefinition 17 18 MethodDefinition : 19 AsyncGeneratorMethod 20 21 Async Generator Function Definitions 22 23 AsyncGeneratorMethod : 24 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } 25 26 27 Spread Properties 28 29 PropertyDefinition[Yield]: 30 (...) 31 ...AssignmentExpression[In, ?Yield] 32 33 ---*/ 34 $DONOTEVALUATE(); 35 36 37 var callCount = 0; 38 39 class C { async *gen() { 40 callCount += 1; 41 return { 42 ...(function() { 43 var yield; 44 throw new Test262Error(); 45 }()), 46 } 47 }} 48 49 var gen = C.prototype.gen; 50 51 var iter = gen(); 52 53 54 55 assert.sameValue(callCount, 1);