src/declarative/qml/parser/qdeclarativejsnodepool_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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     7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
       
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     9 ** $QT_BEGIN_LICENSE:LGPL$
       
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    20 ** packaging of this file.  Please review the following information to
       
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    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef QDECLARATIVEJSNODEPOOL_P_H
       
    43 #define QDECLARATIVEJSNODEPOOL_P_H
       
    44 
       
    45 //
       
    46 //  W A R N I N G
       
    47 //  -------------
       
    48 //
       
    49 // This file is not part of the Qt API.  It exists purely as an
       
    50 // implementation detail.  This header file may change from version to
       
    51 // version without notice, or even be removed.
       
    52 //
       
    53 // We mean it.
       
    54 //
       
    55 
       
    56 #include "private/qdeclarativejsglobal_p.h"
       
    57 #include "private/qdeclarativejsmemorypool_p.h"
       
    58 
       
    59 #include <QtCore/QHash>
       
    60 #include <QtCore/QString>
       
    61 
       
    62 QT_QML_BEGIN_NAMESPACE
       
    63 
       
    64 namespace QDeclarativeJS {
       
    65 
       
    66 namespace AST {
       
    67 class Node;
       
    68 } // namespace AST
       
    69 
       
    70 class Code;
       
    71 class CompilationUnit;
       
    72 class Engine;
       
    73 
       
    74 template <typename NodeType>
       
    75 inline NodeType *makeAstNode(MemoryPool *storage)
       
    76 {
       
    77     NodeType *node = new (storage->allocate(sizeof(NodeType))) NodeType();
       
    78     return node;
       
    79 }
       
    80 
       
    81 template <typename NodeType, typename Arg1>
       
    82 inline NodeType *makeAstNode(MemoryPool *storage, Arg1 arg1)
       
    83 {
       
    84     NodeType *node = new (storage->allocate(sizeof(NodeType))) NodeType(arg1);
       
    85     return node;
       
    86 }
       
    87 
       
    88 template <typename NodeType, typename Arg1, typename Arg2>
       
    89 inline NodeType *makeAstNode(MemoryPool *storage, Arg1 arg1, Arg2 arg2)
       
    90 {
       
    91     NodeType *node = new (storage->allocate(sizeof(NodeType))) NodeType(arg1, arg2);
       
    92     return node;
       
    93 }
       
    94 
       
    95 template <typename NodeType, typename Arg1, typename Arg2, typename Arg3>
       
    96 inline NodeType *makeAstNode(MemoryPool *storage, Arg1 arg1, Arg2 arg2, Arg3 arg3)
       
    97 {
       
    98     NodeType *node = new (storage->allocate(sizeof(NodeType))) NodeType(arg1, arg2, arg3);
       
    99     return node;
       
   100 }
       
   101 
       
   102 template <typename NodeType, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
       
   103 inline NodeType *makeAstNode(MemoryPool *storage, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4)
       
   104 {
       
   105     NodeType *node = new (storage->allocate(sizeof(NodeType))) NodeType(arg1, arg2, arg3, arg4);
       
   106     return node;
       
   107 }
       
   108 
       
   109 class QML_PARSER_EXPORT NodePool : public MemoryPool
       
   110 {
       
   111 public:
       
   112     NodePool(const QString &fileName, Engine *engine);
       
   113     virtual ~NodePool();
       
   114 
       
   115     Code *createCompiledCode(AST::Node *node, CompilationUnit &compilation);
       
   116 
       
   117     inline QString fileName() const { return m_fileName; }
       
   118     inline Engine *engine() const { return m_engine; }
       
   119 #ifndef J_SCRIPT_NO_EVENT_NOTIFY
       
   120     inline qint64 id() const { return m_id; }
       
   121 #endif
       
   122 
       
   123 private:
       
   124     QHash<AST::Node*, Code*> m_codeCache;
       
   125     QString m_fileName;
       
   126     Engine *m_engine;
       
   127 #ifndef J_SCRIPT_NO_EVENT_NOTIFY
       
   128     qint64 m_id;
       
   129 #endif
       
   130 
       
   131 private:
       
   132     Q_DISABLE_COPY(NodePool)
       
   133 };
       
   134 
       
   135 } // namespace QDeclarativeJS
       
   136 
       
   137 QT_QML_END_NAMESPACE
       
   138 
       
   139 #endif