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// Copyright (c) 2017-2022 Cloudflare, Inc.
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// Licensed under the Apache 2.0 license found in the LICENSE file or at:
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//     https://opensource.org/licenses/Apache-2.0
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#include "iterator.h"
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namespace workerd::jsg {
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kj::Maybe<jsg::Promise<void>&> AsyncIteratorImpl::maybeCurrent() {
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  if (!pendingStack.empty()) {
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    return pendingStack.back();
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  }
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  return kj::none;
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}
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void AsyncIteratorImpl::pushCurrent(Promise<void> promise) {
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  pendingStack.push_back(kj::mv(promise));
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}
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void AsyncIteratorImpl::popCurrent() {
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  if (!pendingStack.empty()) {
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    pendingStack.pop_front();
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  }
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}
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void AsyncIteratorImpl::visitForGc(jsg::GcVisitor& visitor) {
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  visitor.visitAll(pendingStack);
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}
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}  // namespace workerd::jsg