зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.4 KiB
C++
88 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Class for representing record arguments. Basically an array under the hood.
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*/
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#ifndef mozilla_dom_Record_h
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#define mozilla_dom_Record_h
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#include <utility>
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#include "mozilla/Attributes.h"
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#include "nsHashKeys.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsTHashtable.h"
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namespace mozilla {
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namespace dom {
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namespace binding_detail {
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template <typename KeyType, typename ValueType>
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class RecordEntry {
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public:
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RecordEntry() = default;
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// Move constructor so we can do Records of Records.
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RecordEntry(RecordEntry<KeyType, ValueType>&& aOther)
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: mKey(std::move(aOther.mKey)), mValue(std::move(aOther.mValue)) {}
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KeyType mKey;
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ValueType mValue;
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};
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// Specialize for a JSObject* ValueType and initialize it on construction, so we
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// don't need to worry about un-initialized JSObject* floating around.
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template <typename KeyType>
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class RecordEntry<KeyType, JSObject*> {
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public:
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RecordEntry() : mValue(nullptr) {}
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// Move constructor so we can do Records of Records.
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RecordEntry(RecordEntry<KeyType, JSObject*>&& aOther)
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: mKey(std::move(aOther.mKey)), mValue(std::move(aOther.mValue)) {}
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KeyType mKey;
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JSObject* mValue;
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};
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} // namespace binding_detail
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template <typename KeyType, typename ValueType>
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class Record {
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public:
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typedef typename binding_detail::RecordEntry<KeyType, ValueType> EntryType;
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typedef Record<KeyType, ValueType> SelfType;
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Record() = default;
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// Move constructor so we can do Record of Record.
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Record(SelfType&& aOther) : mEntries(std::move(aOther.mEntries)) {}
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const nsTArray<EntryType>& Entries() const { return mEntries; }
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nsTArray<EntryType>& Entries() { return mEntries; }
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private:
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nsTArray<EntryType> mEntries;
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};
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} // namespace dom
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} // namespace mozilla
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template <typename K, typename V>
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class nsDefaultComparator<mozilla::dom::binding_detail::RecordEntry<K, V>, K> {
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public:
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bool Equals(const mozilla::dom::binding_detail::RecordEntry<K, V>& aEntry,
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const K& aKey) const {
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return aEntry.mKey == aKey;
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}
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};
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#endif // mozilla_dom_Record_h
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