rdf/base/nsNameSpaceMap.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   2  *
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "nsNameSpaceMap.h"
   8 #include "nsReadableUtils.h"
   9
  10 nsNameSpaceMap::nsNameSpaceMap()
  11     : mEntries(nullptr)
  12 {
  13     MOZ_COUNT_CTOR(nsNameSpaceMap);
  14 }
  15
  16 nsNameSpaceMap::~nsNameSpaceMap()
  17 {
  18     MOZ_COUNT_DTOR(nsNameSpaceMap);
  19
  20     while (mEntries) {
  21         Entry* doomed = mEntries;
  22         mEntries = mEntries->mNext;
  23         delete doomed;
  24     }
  25 }
  26
  27 nsresult
  28 nsNameSpaceMap::Put(const nsAString& aURI, nsIAtom* aPrefix)
  29 {
  30     nsCString uriUTF8;
  31     AppendUTF16toUTF8(aURI, uriUTF8);
  32     return Put(uriUTF8, aPrefix);
  33 }
  34
  35 nsresult
  36 nsNameSpaceMap::Put(const nsCSubstring& aURI, nsIAtom* aPrefix)
  37 {
  38     Entry* entry;
  39
  40     // Make sure we're not adding a duplicate
  41     for (entry = mEntries; entry != nullptr; entry = entry->mNext) {
  42         if (entry->mURI == aURI || entry->mPrefix == aPrefix)
  43             return NS_ERROR_FAILURE;
  44     }
  45
  46     entry = new Entry(aURI, aPrefix);
  47     if (! entry)
  48         return NS_ERROR_OUT_OF_MEMORY;
  49
  50     entry->mNext = mEntries;
  51     mEntries = entry;
  52     return NS_OK;
  53 }
  54
  55 nsNameSpaceMap::const_iterator
  56 nsNameSpaceMap::GetNameSpaceOf(const nsCSubstring& aURI) const
  57 {
  58     for (Entry* entry = mEntries; entry != nullptr; entry = entry->mNext) {
  59         if (StringBeginsWith(aURI, entry->mURI))
  60             return const_iterator(entry);
  61     }
  62
  63     return last();
  64 }