// This file was procedurally generated from the following sources: // - src/dstr-binding/obj-ptrn-prop-ary-value-null.case // - src/dstr-binding/error/async-gen-func-expr-dflt.template /*--- description: Object binding pattern with "nested" array binding pattern taking the `null` value (async generator function expression (default parameter)) esid: sec-asyncgenerator-definitions-evaluation features: [async-iteration] flags: [generated] info: | AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) { AsyncGeneratorBody } [...] 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, scope, strict). [...] 13.3.3.7 Runtime Semantics: KeyedBindingInitialization [...] 3. If Initializer is present and v is undefined, then [...] 4. Return the result of performing BindingInitialization for BindingPattern passing v and environment as arguments. ---*/ var f = async function*({ w: [x, y, z] = [4, 5, 6] } = { w: null }) { }; assert.throws(TypeError, function() { f(); });