The Tor Browser / file comparison
comparison: dom/xslt/base/txExpandedNameMap.cpp
dom/xslt/base/txExpandedNameMap.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
equal
deleted
inserted
replaced
| -1:000000000000 | 0:4180b89de0cf |
|---|---|
| 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 #include "txExpandedNameMap.h" | |
| 7 #include "txCore.h" | |
| 8 | |
| 9 class txMapItemComparator | |
| 10 { | |
| 11 public: | |
| 12 bool Equals(const txExpandedNameMap_base::MapItem& aItem, | |
| 13 const txExpandedName& aKey) const { | |
| 14 return aItem.mNamespaceID == aKey.mNamespaceID && | |
| 15 aItem.mLocalName == aKey.mLocalName; | |
| 16 } | |
| 17 }; | |
| 18 | |
| 19 /** | |
| 20 * Adds an item, if an item with this key already exists an error is | |
| 21 * returned | |
| 22 * @param aKey key for item to add | |
| 23 * @param aValue value of item to add | |
| 24 * @return errorcode | |
| 25 */ | |
| 26 nsresult txExpandedNameMap_base::addItem(const txExpandedName& aKey, | |
| 27 void* aValue) | |
| 28 { | |
| 29 uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator()); | |
| 30 if (pos != mItems.NoIndex) { | |
| 31 return NS_ERROR_XSLT_ALREADY_SET; | |
| 32 } | |
| 33 | |
| 34 MapItem* item = mItems.AppendElement(); | |
| 35 NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY); | |
| 36 | |
| 37 item->mNamespaceID = aKey.mNamespaceID; | |
| 38 item->mLocalName = aKey.mLocalName; | |
| 39 item->mValue = aValue; | |
| 40 | |
| 41 return NS_OK; | |
| 42 } | |
| 43 | |
| 44 /** | |
| 45 * Sets an item, if an item with this key already exists it is overwritten | |
| 46 * with the new value | |
| 47 * @param aKey key for item to set | |
| 48 * @param aValue value of item to set | |
| 49 * @return errorcode | |
| 50 */ | |
| 51 nsresult txExpandedNameMap_base::setItem(const txExpandedName& aKey, | |
| 52 void* aValue, | |
| 53 void** aOldValue) | |
| 54 { | |
| 55 *aOldValue = nullptr; | |
| 56 uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator()); | |
| 57 if (pos != mItems.NoIndex) { | |
| 58 *aOldValue = mItems[pos].mValue; | |
| 59 mItems[pos].mValue = aValue; | |
| 60 | |
| 61 return NS_OK; | |
| 62 } | |
| 63 | |
| 64 MapItem* item = mItems.AppendElement(); | |
| 65 NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY); | |
| 66 | |
| 67 item->mNamespaceID = aKey.mNamespaceID; | |
| 68 item->mLocalName = aKey.mLocalName; | |
| 69 item->mValue = aValue; | |
| 70 | |
| 71 return NS_OK; | |
| 72 } | |
| 73 | |
| 74 /** | |
| 75 * Gets an item | |
| 76 * @param aKey key for item to get | |
| 77 * @return item with specified key, or null if no such item exists | |
| 78 */ | |
| 79 void* txExpandedNameMap_base::getItem(const txExpandedName& aKey) const | |
| 80 { | |
| 81 uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator()); | |
| 82 if (pos != mItems.NoIndex) { | |
| 83 return mItems[pos].mValue; | |
| 84 } | |
| 85 | |
| 86 return nullptr; | |
| 87 } | |
| 88 | |
| 89 /** | |
| 90 * Removes an item, deleting it if the map owns the values | |
| 91 * @param aKey key for item to remove | |
| 92 * @return item with specified key, or null if it has been deleted | |
| 93 * or no such item exists | |
| 94 */ | |
| 95 void* txExpandedNameMap_base::removeItem(const txExpandedName& aKey) | |
| 96 { | |
| 97 void* value = nullptr; | |
| 98 uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator()); | |
| 99 if (pos != mItems.NoIndex) { | |
| 100 value = mItems[pos].mValue; | |
| 101 mItems.RemoveElementAt(pos); | |
| 102 } | |
| 103 | |
| 104 return value; | |
| 105 } |
