// 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-decl-dflt.template /*--- description: Nested object destructuring with a value of `undefined` (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). [...] 13.3.3.6 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). ---*/ async function* f([{ x }] = []) { }; assert.throws(TypeError, function() { f(); }); reportCompare(0, 0);