| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/obj-ptrn-id-init-throws.case |
| // - src/dstr-binding/error/async-gen-func-decl-dflt.template |
| /*--- |
| description: Error thrown when evaluating the initializer (async generator function declaration (default parameter)) |
| esid: sec-asyncgenerator-definitions-instantiatefunctionobject |
| features: [async-iteration] |
| flags: [generated] |
| info: | |
| AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier |
| ( FormalParameters ) { AsyncGeneratorBody } |
| |
| [...] |
| 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, |
| scope, strict). |
| [...] |
| |
| 13.3.3.7 Runtime Semantics: KeyedBindingInitialization |
| |
| SingleNameBinding : BindingIdentifier Initializeropt |
| |
| [...] |
| 6. If Initializer is present and v is undefined, then |
| a. Let defaultValue be the result of evaluating Initializer. |
| b. Let v be GetValue(defaultValue). |
| c. ReturnIfAbrupt(v). |
| ---*/ |
| function thrower() { |
| throw new Test262Error(); |
| } |
| |
| |
| async function* f({ x = thrower() } = {}) { |
| |
| }; |
| |
| assert.throws(Test262Error, function() { |
| f(); |
| }); |