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 public:
Equals(const txExpandedNameMap_base::MapItem & aItem,const txExpandedName & aKey) const11 bool Equals(const txExpandedNameMap_base::MapItem& aItem,
12 const txExpandedName& aKey) const {
13 return aItem.mNamespaceID == aKey.mNamespaceID &&
14 aItem.mLocalName == aKey.mLocalName;
15 }
16 };
17
18 /**
19 * Adds an item, if an item with this key already exists an error is
20 * returned
21 * @param aKey key for item to add
22 * @param aValue value of item to add
23 * @return errorcode
24 */
addItem(const txExpandedName & aKey,void * aValue)25 nsresult txExpandedNameMap_base::addItem(const txExpandedName& aKey,
26 void* aValue) {
27 size_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
28 if (pos != mItems.NoIndex) {
29 return NS_ERROR_XSLT_ALREADY_SET;
30 }
31
32 MapItem* item = mItems.AppendElement();
33 NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY);
34
35 item->mNamespaceID = aKey.mNamespaceID;
36 item->mLocalName = aKey.mLocalName;
37 item->mValue = aValue;
38
39 return NS_OK;
40 }
41
42 /**
43 * Sets an item, if an item with this key already exists it is overwritten
44 * with the new value
45 * @param aKey key for item to set
46 * @param aValue value of item to set
47 * @return errorcode
48 */
setItem(const txExpandedName & aKey,void * aValue,void ** aOldValue)49 nsresult txExpandedNameMap_base::setItem(const txExpandedName& aKey,
50 void* aValue, void** aOldValue) {
51 *aOldValue = nullptr;
52 size_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
53 if (pos != mItems.NoIndex) {
54 *aOldValue = mItems[pos].mValue;
55 mItems[pos].mValue = aValue;
56 return NS_OK;
57 }
58
59 MapItem* item = mItems.AppendElement();
60 NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY);
61
62 item->mNamespaceID = aKey.mNamespaceID;
63 item->mLocalName = aKey.mLocalName;
64 item->mValue = aValue;
65
66 return NS_OK;
67 }
68
69 /**
70 * Gets an item
71 * @param aKey key for item to get
72 * @return item with specified key, or null if no such item exists
73 */
getItem(const txExpandedName & aKey) const74 void* txExpandedNameMap_base::getItem(const txExpandedName& aKey) const {
75 size_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
76 if (pos != mItems.NoIndex) {
77 return mItems[pos].mValue;
78 }
79
80 return nullptr;
81 }
82
83 /**
84 * Removes an item, deleting it if the map owns the values
85 * @param aKey key for item to remove
86 * @return item with specified key, or null if it has been deleted
87 * or no such item exists
88 */
removeItem(const txExpandedName & aKey)89 void* txExpandedNameMap_base::removeItem(const txExpandedName& aKey) {
90 void* value = nullptr;
91 size_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
92 if (pos != mItems.NoIndex) {
93 value = mItems[pos].mValue;
94 mItems.RemoveElementAt(pos);
95 }
96
97 return value;
98 }
99