// This file was procedurally generated from the following sources: // - src/function-forms/dflt-params-ref-prior.case // - src/function-forms/default/async-func-expr-named.template /*--- description: Referencing a parameter that occurs earlier in the ParameterList (async function named expression) esid: sec-async-function-definitions features: [default-parameters, async-functions] flags: [generated, async] info: | 14.6 Async Function Definitions AsyncFunctionExpression : 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; // Stores a reference `ref` for case evaluation var ref; ref = async function ref(x, y = x, z = y) { assert.sameValue(x, 3, 'first argument value'); assert.sameValue(y, 3, 'second argument value'); assert.sameValue(z, 3, 'third argument value'); callCount = callCount + 1; }; ref(3).then(() => { assert.sameValue(callCount, 1, 'function invoked exactly once'); }).then($DONE, $DONE);