LCOV - code coverage report
Current view: directory - content/xul/templates/src - nsRDFPropertyTestNode.h (source / functions) Found Hit Coverage
Test: app.info Lines: 24 0 0.0 %
Date: 2012-06-02 Functions: 11 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla Communicator client code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Chris Waterson <waterson@netscape.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef nsRDFPropertyTestNode_h__
      40                 : #define nsRDFPropertyTestNode_h__
      41                 : 
      42                 : #include "nscore.h"
      43                 : #include "nsRDFTestNode.h"
      44                 : #include "nsIRDFDataSource.h"
      45                 : #include "nsIRDFResource.h"
      46                 : #include "nsXULTemplateQueryProcessorRDF.h"
      47                 : 
      48                 : class nsRDFPropertyTestNode : public nsRDFTestNode
      49               0 : {
      50                 : public:
      51                 :     /**
      52                 :      * Both source and target unbound (?source ^property ?target)
      53                 :      */
      54                 :     nsRDFPropertyTestNode(TestNode* aParent,
      55                 :                           nsXULTemplateQueryProcessorRDF* aProcessor,
      56                 :                           nsIAtom* aSourceVariable,
      57                 :                           nsIRDFResource* aProperty,
      58                 :                           nsIAtom* aTargetVariable);
      59                 : 
      60                 :     /**
      61                 :      * Source bound, target unbound (source ^property ?target)
      62                 :      */
      63                 :     nsRDFPropertyTestNode(TestNode* aParent,
      64                 :                           nsXULTemplateQueryProcessorRDF* aProcessor,
      65                 :                           nsIRDFResource* aSource,
      66                 :                           nsIRDFResource* aProperty,
      67                 :                           nsIAtom* aTargetVariable);
      68                 : 
      69                 :     /**
      70                 :      * Source unbound, target bound (?source ^property target)
      71                 :      */
      72                 :     nsRDFPropertyTestNode(TestNode* aParent,
      73                 :                           nsXULTemplateQueryProcessorRDF* aProcessor,
      74                 :                           nsIAtom* aSourceVariable,
      75                 :                           nsIRDFResource* aProperty,
      76                 :                           nsIRDFNode* aTarget);
      77                 : 
      78                 :     virtual nsresult FilterInstantiations(InstantiationSet& aInstantiations,
      79                 :                                           bool* aCantHandleYet) const;
      80                 : 
      81                 :     virtual bool
      82                 :     CanPropagate(nsIRDFResource* aSource,
      83                 :                  nsIRDFResource* aProperty,
      84                 :                  nsIRDFNode* aTarget,
      85                 :                  Instantiation& aInitialBindings) const;
      86                 : 
      87                 :     virtual void
      88                 :     Retract(nsIRDFResource* aSource,
      89                 :             nsIRDFResource* aProperty,
      90                 :             nsIRDFNode* aTarget) const;
      91                 : 
      92                 : 
      93                 :     class Element : public MemoryElement {
      94                 :     protected:
      95                 :         // Hide so that only Create() and Destroy() can be used to
      96                 :         // allocate and deallocate from the heap
      97                 :         static void* operator new(size_t) CPP_THROW_NEW { return 0; }
      98               0 :         static void operator delete(void*, size_t) {}
      99                 : 
     100                 :     public:
     101               0 :         Element(nsIRDFResource* aSource,
     102                 :                 nsIRDFResource* aProperty,
     103                 :                 nsIRDFNode* aTarget)
     104                 :             : mSource(aSource),
     105                 :               mProperty(aProperty),
     106               0 :               mTarget(aTarget) {
     107               0 :             MOZ_COUNT_CTOR(nsRDFPropertyTestNode::Element); }
     108                 : 
     109               0 :         virtual ~Element() { MOZ_COUNT_DTOR(nsRDFPropertyTestNode::Element); }
     110                 : 
     111                 :         static Element*
     112               0 :         Create(nsIRDFResource* aSource,
     113                 :                nsIRDFResource* aProperty,
     114                 :                nsIRDFNode* aTarget) {
     115               0 :             void* place = MemoryElement::gPool.Alloc(sizeof(Element));
     116               0 :             return place ? ::new (place) Element(aSource, aProperty, aTarget) : nsnull; }
     117                 : 
     118               0 :         void Destroy() {
     119               0 :             this->~Element();
     120               0 :             MemoryElement::gPool.Free(this, sizeof(Element));
     121               0 :         }
     122                 : 
     123               0 :         virtual const char* Type() const {
     124               0 :             return "nsRDFPropertyTestNode::Element"; }
     125                 : 
     126               0 :         virtual PLHashNumber Hash() const {
     127               0 :             return mozilla::HashGeneric(mSource.get(), mProperty.get(), mTarget.get());
     128                 :         }
     129                 : 
     130               0 :         virtual bool Equals(const MemoryElement& aElement) const {
     131               0 :             if (aElement.Type() == Type()) {
     132               0 :                 const Element& element = static_cast<const Element&>(aElement);
     133               0 :                 return mSource == element.mSource
     134               0 :                     && mProperty == element.mProperty
     135               0 :                     && mTarget == element.mTarget;
     136                 :             }
     137               0 :             return false; }
     138                 : 
     139                 :     protected:
     140                 :         nsCOMPtr<nsIRDFResource> mSource;
     141                 :         nsCOMPtr<nsIRDFResource> mProperty;
     142                 :         nsCOMPtr<nsIRDFNode> mTarget;
     143                 :     };
     144                 : 
     145                 : protected:
     146                 :     nsXULTemplateQueryProcessorRDF* mProcessor;
     147                 :     nsCOMPtr<nsIAtom>        mSourceVariable;
     148                 :     nsCOMPtr<nsIRDFResource> mSource;
     149                 :     nsCOMPtr<nsIRDFResource> mProperty;
     150                 :     nsCOMPtr<nsIAtom>        mTargetVariable;
     151                 :     nsCOMPtr<nsIRDFNode>     mTarget;
     152                 : };
     153                 : 
     154                 : #endif // nsRDFPropertyTestNode_h__

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