| // This file was procedurally generated from the following sources: |
| // - src/function-forms/dflt-params-ref-self.case |
| // - src/function-forms/error/async-func-decl.template |
| /*--- |
| description: Referencing a parameter from within its own initializer (async function declaration) |
| esid: sec-async-function-definitions |
| features: [default-parameters, async-functions] |
| flags: [generated, async] |
| info: | |
| 14.6 Async Function Definitions |
| |
| AsyncFunctionDeclaration : |
| async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } |
| |
| |
| 14.1.19 Runtime Semantics: IteratorBindingInitialization |
| |
| FormalsList : FormalsList , FormalParameter |
| |
| 1. Let status be the result of performing IteratorBindingInitialization for |
| FormalsList using iteratorRecord and environment as the arguments. |
| 2. ReturnIfAbrupt(status). |
| 3. Return the result of performing IteratorBindingInitialization for |
| FormalParameter using iteratorRecord and environment as the arguments. |
| |
| ---*/ |
| var x = 0; |
| |
| |
| var callCount = 0; |
| async function f(x = x) { |
| |
| callCount = callCount + 1; |
| } |
| |
| f() |
| .then(_ => { |
| throw new Test262Error('function should not be resolved'); |
| }, error => assert.sameValue(error.constructor, ReferenceError)) |
| .then(() => { |
| assert.sameValue(callCount, 0, 'function body is not evaluated'); |
| }, $DONE) |
| .then($DONE, $DONE); |