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// |reftest| async
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
// - src/dstr-binding/default/async-gen-func-decl.template
/*---
description: Rest element containing an "empty" array pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
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
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
---*/
var iterations = 0;
var iter = function*() {
iterations += 1;
}();
var callCount = 0;
async function* f([...[]]) {
assert.sameValue(iterations, 1);
callCount = callCount + 1;
};
f(iter).next().then(() => {
assert.sameValue(callCount, 1, 'invoked exactly once');
}).then($DONE, $DONE);
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