The Tor Browser / file comparison
comparison: dom/xslt/base/txExpandedNameMap.h
dom/xslt/base/txExpandedNameMap.h
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- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:a034174519cf |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef TRANSFRMX_EXPANDEDNAMEMAP_H | |
| 7 #define TRANSFRMX_EXPANDEDNAMEMAP_H | |
| 8 | |
| 9 #include "nsError.h" | |
| 10 #include "txXMLUtils.h" | |
| 11 #include "nsTArray.h" | |
| 12 | |
| 13 class txExpandedNameMap_base { | |
| 14 protected: | |
| 15 /** | |
| 16 * Adds an item, if an item with this key already exists an error is | |
| 17 * returned | |
| 18 * @param aKey key for item to add | |
| 19 * @param aValue value of item to add | |
| 20 * @return errorcode | |
| 21 */ | |
| 22 nsresult addItem(const txExpandedName& aKey, void* aValue); | |
| 23 | |
| 24 /** | |
| 25 * Sets an item, if an item with this key already exists it is overwritten | |
| 26 * with the new value | |
| 27 * @param aKey key for item to set | |
| 28 * @param aValue value of item to set | |
| 29 * @return errorcode | |
| 30 */ | |
| 31 nsresult setItem(const txExpandedName& aKey, void* aValue, | |
| 32 void** aOldValue); | |
| 33 | |
| 34 /** | |
| 35 * Gets an item | |
| 36 * @param aKey key for item to get | |
| 37 * @return item with specified key, or null if no such item exists | |
| 38 */ | |
| 39 void* getItem(const txExpandedName& aKey) const; | |
| 40 | |
| 41 /** | |
| 42 * Removes an item, deleting it if the map owns the values | |
| 43 * @param aKey key for item to remove | |
| 44 * @return item with specified key, or null if it has been deleted | |
| 45 * or no such item exists | |
| 46 */ | |
| 47 void* removeItem(const txExpandedName& aKey); | |
| 48 | |
| 49 /** | |
| 50 * Clears the items | |
| 51 */ | |
| 52 void clearItems() | |
| 53 { | |
| 54 mItems.Clear(); | |
| 55 } | |
| 56 | |
| 57 class iterator_base { | |
| 58 public: | |
| 59 iterator_base(txExpandedNameMap_base& aMap) | |
| 60 : mMap(aMap), | |
| 61 mCurrentPos(uint32_t(-1)) | |
| 62 { | |
| 63 } | |
| 64 | |
| 65 bool next() | |
| 66 { | |
| 67 return ++mCurrentPos < mMap.mItems.Length(); | |
| 68 } | |
| 69 | |
| 70 const txExpandedName key() | |
| 71 { | |
| 72 NS_ASSERTION(mCurrentPos < mMap.mItems.Length(), | |
| 73 "invalid position in txExpandedNameMap::iterator"); | |
| 74 return txExpandedName(mMap.mItems[mCurrentPos].mNamespaceID, | |
| 75 mMap.mItems[mCurrentPos].mLocalName); | |
| 76 } | |
| 77 | |
| 78 protected: | |
| 79 void* itemValue() | |
| 80 { | |
| 81 NS_ASSERTION(mCurrentPos < mMap.mItems.Length(), | |
| 82 "invalid position in txExpandedNameMap::iterator"); | |
| 83 return mMap.mItems[mCurrentPos].mValue; | |
| 84 } | |
| 85 | |
| 86 private: | |
| 87 txExpandedNameMap_base& mMap; | |
| 88 uint32_t mCurrentPos; | |
| 89 }; | |
| 90 | |
| 91 friend class iterator_base; | |
| 92 | |
| 93 friend class txMapItemComparator; | |
| 94 struct MapItem { | |
| 95 int32_t mNamespaceID; | |
| 96 nsCOMPtr<nsIAtom> mLocalName; | |
| 97 void* mValue; | |
| 98 }; | |
| 99 | |
| 100 nsTArray<MapItem> mItems; | |
| 101 }; | |
| 102 | |
| 103 template<class E> | |
| 104 class txExpandedNameMap : public txExpandedNameMap_base | |
| 105 { | |
| 106 public: | |
| 107 nsresult add(const txExpandedName& aKey, E* aValue) | |
| 108 { | |
| 109 return addItem(aKey, (void*)aValue); | |
| 110 } | |
| 111 | |
| 112 nsresult set(const txExpandedName& aKey, E* aValue) | |
| 113 { | |
| 114 void* oldValue; | |
| 115 return setItem(aKey, (void*)aValue, &oldValue); | |
| 116 } | |
| 117 | |
| 118 E* get(const txExpandedName& aKey) const | |
| 119 { | |
| 120 return (E*)getItem(aKey); | |
| 121 } | |
| 122 | |
| 123 E* remove(const txExpandedName& aKey) | |
| 124 { | |
| 125 return (E*)removeItem(aKey); | |
| 126 } | |
| 127 | |
| 128 void clear() | |
| 129 { | |
| 130 clearItems(); | |
| 131 } | |
| 132 | |
| 133 class iterator : public iterator_base | |
| 134 { | |
| 135 public: | |
| 136 iterator(txExpandedNameMap& aMap) | |
| 137 : iterator_base(aMap) | |
| 138 { | |
| 139 } | |
| 140 | |
| 141 E* value() | |
| 142 { | |
| 143 return (E*)itemValue(); | |
| 144 } | |
| 145 }; | |
| 146 }; | |
| 147 | |
| 148 template<class E> | |
| 149 class txOwningExpandedNameMap : public txExpandedNameMap_base | |
| 150 { | |
| 151 public: | |
| 152 ~txOwningExpandedNameMap() | |
| 153 { | |
| 154 clear(); | |
| 155 } | |
| 156 | |
| 157 nsresult add(const txExpandedName& aKey, E* aValue) | |
| 158 { | |
| 159 return addItem(aKey, (void*)aValue); | |
| 160 } | |
| 161 | |
| 162 nsresult set(const txExpandedName& aKey, E* aValue) | |
| 163 { | |
| 164 nsAutoPtr<E> oldValue; | |
| 165 return setItem(aKey, (void*)aValue, getter_Transfers(oldValue)); | |
| 166 } | |
| 167 | |
| 168 E* get(const txExpandedName& aKey) const | |
| 169 { | |
| 170 return (E*)getItem(aKey); | |
| 171 } | |
| 172 | |
| 173 void remove(const txExpandedName& aKey) | |
| 174 { | |
| 175 delete (E*)removeItem(aKey); | |
| 176 } | |
| 177 | |
| 178 void clear() | |
| 179 { | |
| 180 uint32_t i, len = mItems.Length(); | |
| 181 for (i = 0; i < len; ++i) { | |
| 182 delete (E*)mItems[i].mValue; | |
| 183 } | |
| 184 clearItems(); | |
| 185 } | |
| 186 | |
| 187 class iterator : public iterator_base | |
| 188 { | |
| 189 public: | |
| 190 iterator(txOwningExpandedNameMap& aMap) | |
| 191 : iterator_base(aMap) | |
| 192 { | |
| 193 } | |
| 194 | |
| 195 E* value() | |
| 196 { | |
| 197 return (E*)itemValue(); | |
| 198 } | |
| 199 }; | |
| 200 }; | |
| 201 | |
| 202 #endif //TRANSFRMX_EXPANDEDNAMEMAP_H |
