| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case |
| // - src/dstr-binding/error/async-gen-func-named-expr-dflt.template |
| /*--- |
| description: Nested object destructuring with a value of `undefined` (async generator named function expression (default parameter)) |
| esid: sec-asyncgenerator-definitions-evaluation |
| features: [async-iteration] |
| flags: [generated] |
| info: | |
| AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier |
| ( FormalParameters ) { AsyncGeneratorBody } |
| |
| [...] |
| 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, |
| AsyncGeneratorBody, funcEnv, strict). |
| [...] |
| |
| 13.3.3.6 Runtime Semantics: IteratorBindingInitialization |
| |
| BindingElement : BindingPattern Initializeropt |
| |
| 1. If iteratorRecord.[[done]] is false, then |
| [...] |
| e. Else |
| i. Let v be IteratorValue(next). |
| [...] |
| 4. Return the result of performing BindingInitialization of BindingPattern |
| with v and environment as the arguments. |
| |
| 13.3.3.5 Runtime Semantics: BindingInitialization |
| |
| BindingPattern : ObjectBindingPattern |
| |
| 1. Let valid be RequireObjectCoercible(value). |
| 2. ReturnIfAbrupt(valid). |
| ---*/ |
| |
| |
| var f; |
| f = async function* h([{ x }] = []) { |
| |
| }; |
| |
| assert.throws(TypeError, function() { |
| f(); |
| }); |