michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "txExpandedNameMap.h"
michael@0: #include "txCore.h"
michael@0: 
michael@0: class txMapItemComparator
michael@0: {
michael@0:   public:
michael@0:     bool Equals(const txExpandedNameMap_base::MapItem& aItem,
michael@0:                   const txExpandedName& aKey) const {
michael@0:       return aItem.mNamespaceID == aKey.mNamespaceID &&
michael@0:              aItem.mLocalName == aKey.mLocalName;
michael@0:     }
michael@0: };
michael@0: 
michael@0: /**
michael@0:  * Adds an item, if an item with this key already exists an error is
michael@0:  * returned
michael@0:  * @param  aKey   key for item to add
michael@0:  * @param  aValue value of item to add
michael@0:  * @return errorcode
michael@0:  */
michael@0: nsresult txExpandedNameMap_base::addItem(const txExpandedName& aKey,
michael@0:                                          void* aValue)
michael@0: {
michael@0:     uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
michael@0:     if (pos != mItems.NoIndex) {
michael@0:         return NS_ERROR_XSLT_ALREADY_SET;
michael@0:     }
michael@0: 
michael@0:     MapItem* item = mItems.AppendElement();
michael@0:     NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY);
michael@0: 
michael@0:     item->mNamespaceID = aKey.mNamespaceID;
michael@0:     item->mLocalName = aKey.mLocalName;
michael@0:     item->mValue = aValue;
michael@0: 
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * Sets an item, if an item with this key already exists it is overwritten
michael@0:  * with the new value
michael@0:  * @param  aKey   key for item to set
michael@0:  * @param  aValue value of item to set
michael@0:  * @return errorcode
michael@0:  */
michael@0: nsresult txExpandedNameMap_base::setItem(const txExpandedName& aKey,
michael@0:                                          void* aValue,
michael@0:                                          void** aOldValue)
michael@0: {
michael@0:     *aOldValue = nullptr;
michael@0:     uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
michael@0:     if (pos != mItems.NoIndex) {
michael@0:         *aOldValue = mItems[pos].mValue;
michael@0:         mItems[pos].mValue = aValue;
michael@0:         
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     MapItem* item = mItems.AppendElement();
michael@0:     NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY);
michael@0: 
michael@0:     item->mNamespaceID = aKey.mNamespaceID;
michael@0:     item->mLocalName = aKey.mLocalName;
michael@0:     item->mValue = aValue;
michael@0: 
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * Gets an item
michael@0:  * @param  aKey  key for item to get
michael@0:  * @return item with specified key, or null if no such item exists
michael@0:  */
michael@0: void* txExpandedNameMap_base::getItem(const txExpandedName& aKey) const
michael@0: {
michael@0:     uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
michael@0:     if (pos != mItems.NoIndex) {
michael@0:         return mItems[pos].mValue;
michael@0:     }
michael@0: 
michael@0:     return nullptr;
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * Removes an item, deleting it if the map owns the values
michael@0:  * @param  aKey  key for item to remove
michael@0:  * @return item with specified key, or null if it has been deleted
michael@0:  *         or no such item exists
michael@0:  */
michael@0: void* txExpandedNameMap_base::removeItem(const txExpandedName& aKey)
michael@0: {
michael@0:     void* value = nullptr;
michael@0:     uint32_t pos = mItems.IndexOf(aKey, 0, txMapItemComparator());
michael@0:     if (pos != mItems.NoIndex) {
michael@0:         value = mItems[pos].mValue;
michael@0:         mItems.RemoveElementAt(pos);
michael@0:     }
michael@0: 
michael@0:     return value;
michael@0: }