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