rdf/base/src/nsNameSpaceMap.h

   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 #ifndef nsNameSpaceMap_h__
   8 #define nsNameSpaceMap_h__
   9
  10 #include "nsCOMPtr.h"
  11 #include "nsString.h"
  12 #include "nsIAtom.h"
  13
  14 class nsNameSpaceMap
  15 {
  16 public:
  17     class Entry {
  18     public:
  19         Entry(const nsCSubstring& aURI, nsIAtom* aPrefix)
  20             : mURI(aURI), mPrefix(aPrefix), mNext(nullptr) {
  21             MOZ_COUNT_CTOR(nsNameSpaceMap::Entry); }
  22
  23         ~Entry() { MOZ_COUNT_DTOR(nsNameSpaceMap::Entry); }
  24
  25         nsCString mURI;
  26         nsCOMPtr<nsIAtom> mPrefix;
  27
  28         Entry* mNext;
  29     };
  30
  31     nsNameSpaceMap();
  32     ~nsNameSpaceMap();
  33
  34     nsresult
  35     Put(const nsAString& aURI, nsIAtom* aPrefix);
  36
  37     nsresult
  38     Put(const nsCSubstring& aURI, nsIAtom* aPrefix);
  39
  40     class const_iterator {
  41     protected:
  42         friend class nsNameSpaceMap;
  43
  44         const_iterator(const Entry* aCurrent)
  45             : mCurrent(aCurrent) {}
  46
  47         const Entry* mCurrent;
  48
  49     public:
  50         const_iterator()
  51             : mCurrent(nullptr) {}
  52
  53         const_iterator(const const_iterator& iter)
  54             : mCurrent(iter.mCurrent) {}
  55
  56         const_iterator&
  57         operator=(const const_iterator& iter) {
  58             mCurrent = iter.mCurrent;
  59             return *this; }
  60
  61         const_iterator&
  62         operator++() {
  63             mCurrent = mCurrent->mNext;
  64             return *this; }
  65
  66         const_iterator
  67         operator++(int) {
  68             const_iterator tmp(*this);
  69             mCurrent = mCurrent->mNext;
  70             return tmp; }
  71
  72         const Entry* operator->() const { return mCurrent; }
  73
  74         const Entry& operator*() const { return *mCurrent; }
  75
  76         bool
  77         operator==(const const_iterator& iter) const {
  78             return mCurrent == iter.mCurrent; }
  79
  80         bool
  81         operator!=(const const_iterator& iter) const {
  82             return ! iter.operator==(*this); }
  83     };
  84
  85     const_iterator first() const {
  86         return const_iterator(mEntries); }
  87
  88     const_iterator last() const {
  89         return const_iterator(nullptr); }
  90
  91     const_iterator GetNameSpaceOf(const nsCSubstring& aURI) const;
  92
  93 protected:
  94     Entry* mEntries;
  95 };
  96
  97
  98 #endif // nsNameSpaceMap_h__