// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-empty.case
// - src/dstr-binding/default/async-gen-func-expr-dflt.template
/*---
description: No iteration occurs for an "empty" array binding pattern (async generator function expression (default parameter))
esid: sec-asyncgenerator-definitions-evaluation
features: [generators, async-iteration]
flags: [generated, async]
info: |
    AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
        AsyncGeneratorBody }

        [...]
        3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
           AsyncGeneratorBody, scope, strict).
        [...]


    13.3.3.6 Runtime Semantics: IteratorBindingInitialization

    ArrayBindingPattern : [ ]

    1. Return NormalCompletion(empty).

---*/
var iterations = 0;
var iter = function*() {
  iterations += 1;
}();


var callCount = 0;
var f;
f = async function*([] = iter) {
  assert.sameValue(iterations, 0);
  callCount = callCount + 1;
};

f().next().then(() => {
    assert.sameValue(callCount, 1, 'invoked exactly once');
}).then($DONE, $DONE);