1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/xslt/base/txExpandedNameMap.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,202 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef TRANSFRMX_EXPANDEDNAMEMAP_H
1.10 +#define TRANSFRMX_EXPANDEDNAMEMAP_H
1.11 +
1.12 +#include "nsError.h"
1.13 +#include "txXMLUtils.h"
1.14 +#include "nsTArray.h"
1.15 +
1.16 +class txExpandedNameMap_base {
1.17 +protected:
1.18 + /**
1.19 + * Adds an item, if an item with this key already exists an error is
1.20 + * returned
1.21 + * @param aKey key for item to add
1.22 + * @param aValue value of item to add
1.23 + * @return errorcode
1.24 + */
1.25 + nsresult addItem(const txExpandedName& aKey, void* aValue);
1.26 +
1.27 + /**
1.28 + * Sets an item, if an item with this key already exists it is overwritten
1.29 + * with the new value
1.30 + * @param aKey key for item to set
1.31 + * @param aValue value of item to set
1.32 + * @return errorcode
1.33 + */
1.34 + nsresult setItem(const txExpandedName& aKey, void* aValue,
1.35 + void** aOldValue);
1.36 +
1.37 + /**
1.38 + * Gets an item
1.39 + * @param aKey key for item to get
1.40 + * @return item with specified key, or null if no such item exists
1.41 + */
1.42 + void* getItem(const txExpandedName& aKey) const;
1.43 +
1.44 + /**
1.45 + * Removes an item, deleting it if the map owns the values
1.46 + * @param aKey key for item to remove
1.47 + * @return item with specified key, or null if it has been deleted
1.48 + * or no such item exists
1.49 + */
1.50 + void* removeItem(const txExpandedName& aKey);
1.51 +
1.52 + /**
1.53 + * Clears the items
1.54 + */
1.55 + void clearItems()
1.56 + {
1.57 + mItems.Clear();
1.58 + }
1.59 +
1.60 + class iterator_base {
1.61 + public:
1.62 + iterator_base(txExpandedNameMap_base& aMap)
1.63 + : mMap(aMap),
1.64 + mCurrentPos(uint32_t(-1))
1.65 + {
1.66 + }
1.67 +
1.68 + bool next()
1.69 + {
1.70 + return ++mCurrentPos < mMap.mItems.Length();
1.71 + }
1.72 +
1.73 + const txExpandedName key()
1.74 + {
1.75 + NS_ASSERTION(mCurrentPos < mMap.mItems.Length(),
1.76 + "invalid position in txExpandedNameMap::iterator");
1.77 + return txExpandedName(mMap.mItems[mCurrentPos].mNamespaceID,
1.78 + mMap.mItems[mCurrentPos].mLocalName);
1.79 + }
1.80 +
1.81 + protected:
1.82 + void* itemValue()
1.83 + {
1.84 + NS_ASSERTION(mCurrentPos < mMap.mItems.Length(),
1.85 + "invalid position in txExpandedNameMap::iterator");
1.86 + return mMap.mItems[mCurrentPos].mValue;
1.87 + }
1.88 +
1.89 + private:
1.90 + txExpandedNameMap_base& mMap;
1.91 + uint32_t mCurrentPos;
1.92 + };
1.93 +
1.94 + friend class iterator_base;
1.95 +
1.96 + friend class txMapItemComparator;
1.97 + struct MapItem {
1.98 + int32_t mNamespaceID;
1.99 + nsCOMPtr<nsIAtom> mLocalName;
1.100 + void* mValue;
1.101 + };
1.102 +
1.103 + nsTArray<MapItem> mItems;
1.104 +};
1.105 +
1.106 +template<class E>
1.107 +class txExpandedNameMap : public txExpandedNameMap_base
1.108 +{
1.109 +public:
1.110 + nsresult add(const txExpandedName& aKey, E* aValue)
1.111 + {
1.112 + return addItem(aKey, (void*)aValue);
1.113 + }
1.114 +
1.115 + nsresult set(const txExpandedName& aKey, E* aValue)
1.116 + {
1.117 + void* oldValue;
1.118 + return setItem(aKey, (void*)aValue, &oldValue);
1.119 + }
1.120 +
1.121 + E* get(const txExpandedName& aKey) const
1.122 + {
1.123 + return (E*)getItem(aKey);
1.124 + }
1.125 +
1.126 + E* remove(const txExpandedName& aKey)
1.127 + {
1.128 + return (E*)removeItem(aKey);
1.129 + }
1.130 +
1.131 + void clear()
1.132 + {
1.133 + clearItems();
1.134 + }
1.135 +
1.136 + class iterator : public iterator_base
1.137 + {
1.138 + public:
1.139 + iterator(txExpandedNameMap& aMap)
1.140 + : iterator_base(aMap)
1.141 + {
1.142 + }
1.143 +
1.144 + E* value()
1.145 + {
1.146 + return (E*)itemValue();
1.147 + }
1.148 + };
1.149 +};
1.150 +
1.151 +template<class E>
1.152 +class txOwningExpandedNameMap : public txExpandedNameMap_base
1.153 +{
1.154 +public:
1.155 + ~txOwningExpandedNameMap()
1.156 + {
1.157 + clear();
1.158 + }
1.159 +
1.160 + nsresult add(const txExpandedName& aKey, E* aValue)
1.161 + {
1.162 + return addItem(aKey, (void*)aValue);
1.163 + }
1.164 +
1.165 + nsresult set(const txExpandedName& aKey, E* aValue)
1.166 + {
1.167 + nsAutoPtr<E> oldValue;
1.168 + return setItem(aKey, (void*)aValue, getter_Transfers(oldValue));
1.169 + }
1.170 +
1.171 + E* get(const txExpandedName& aKey) const
1.172 + {
1.173 + return (E*)getItem(aKey);
1.174 + }
1.175 +
1.176 + void remove(const txExpandedName& aKey)
1.177 + {
1.178 + delete (E*)removeItem(aKey);
1.179 + }
1.180 +
1.181 + void clear()
1.182 + {
1.183 + uint32_t i, len = mItems.Length();
1.184 + for (i = 0; i < len; ++i) {
1.185 + delete (E*)mItems[i].mValue;
1.186 + }
1.187 + clearItems();
1.188 + }
1.189 +
1.190 + class iterator : public iterator_base
1.191 + {
1.192 + public:
1.193 + iterator(txOwningExpandedNameMap& aMap)
1.194 + : iterator_base(aMap)
1.195 + {
1.196 + }
1.197 +
1.198 + E* value()
1.199 + {
1.200 + return (E*)itemValue();
1.201 + }
1.202 + };
1.203 +};
1.204 +
1.205 +#endif //TRANSFRMX_EXPANDEDNAMEMAP_H
