eval-var-scope-syntax-err.js (1589B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/function-forms/eval-var-scope-syntax-err.case 4 // - src/function-forms/error-no-strict/async-arrow-function.template 5 /*--- 6 description: sloppy direct eval in params introduces var (async arrow function expression in sloppy code) 7 esid: sec-async-arrow-function-definitions 8 features: [default-parameters, async-functions] 9 flags: [generated, async, noStrict] 10 info: | 11 14.7 Async Arrow Function Definitions 12 13 AsyncArrowFunction : 14 ... 15 CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody 16 17 AsyncConciseBody : 18 { AsyncFunctionBody } 19 20 ... 21 22 Supplemental Syntax 23 24 When processing an instance of the production AsyncArrowFunction : 25 CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody the interpretation of 26 CoverCallExpressionAndAsyncArrowHead is refined using the following grammar: 27 28 AsyncArrowHead : 29 async ArrowFormalParameters 30 31 32 33 Runtime Semantics: IteratorBindingInitialization 34 FormalParameter : BindingElement 35 36 1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment. 37 38 ---*/ 39 40 41 var callCount = 0; 42 var f; 43 f = async (a = eval("var a = 42")) => { 44 45 callCount = callCount + 1; 46 }; 47 48 f() 49 .then(_ => { 50 throw new Test262Error('function should not be resolved'); 51 }, error => assert.sameValue(error.constructor, SyntaxError)) 52 .then(() => { 53 assert.sameValue(callCount, 0, 'function body is not evaluated'); 54 }, $DONE) 55 .then($DONE, $DONE);