aboutsummaryrefslogtreecommitdiffstats
path: root/src/declarative/qml/qdeclarativerewrite_p.h
blob: b5ea44f23f681f48038bad78740c13962a401fca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QDECLARATIVEREWRITE_P_H
#define QDECLARATIVEREWRITE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "rewriter/textwriter_p.h"
#include "parser/qdeclarativejslexer_p.h"
#include "parser/qdeclarativejsparser_p.h"
#include "parser/qdeclarativejsmemorypool_p.h"

QT_BEGIN_NAMESPACE

namespace QDeclarativeRewrite {
using namespace QDeclarativeJS;

class SharedBindingTester : protected AST::Visitor
{
    bool _sharable;
public:
    bool isSharable(const QString &code);
    bool isSharable(AST::Node *Node);
    
    virtual bool visit(AST::FunctionDeclaration *) { _sharable = false; return false; }
    virtual bool visit(AST::FunctionExpression *) { _sharable = false; return false; }
    virtual bool visit(AST::CallExpression *) { _sharable = false; return false; }
};

class RewriteBinding: protected AST::Visitor
{
    unsigned _position;
    TextWriter *_writer;
    QString _name;

public:
    QString operator()(const QString &code, bool *ok = 0, bool *sharable = 0);
    QString operator()(QDeclarativeJS::AST::Node *node, const QString &code, bool *sharable = 0);

    //name of the function:  used for the debugger
    void setName(const QString &name) { _name = name; }

protected:
    using AST::Visitor::visit;

    void accept(AST::Node *node);
    QString rewrite(QString code, unsigned position, AST::Statement *node);

    virtual bool visit(AST::Block *ast);
    virtual bool visit(AST::ExpressionStatement *ast);

    virtual bool visit(AST::DoWhileStatement *ast);
    virtual void endVisit(AST::DoWhileStatement *ast);

    virtual bool visit(AST::WhileStatement *ast);
    virtual void endVisit(AST::WhileStatement *ast);

    virtual bool visit(AST::ForStatement *ast);
    virtual void endVisit(AST::ForStatement *ast);

    virtual bool visit(AST::LocalForStatement *ast);
    virtual void endVisit(AST::LocalForStatement *ast);

    virtual bool visit(AST::ForEachStatement *ast);
    virtual void endVisit(AST::ForEachStatement *ast);

    virtual bool visit(AST::LocalForEachStatement *ast);
    virtual void endVisit(AST::LocalForEachStatement *ast);

private:
    int _inLoop;
};

class RewriteSignalHandler
{
public:
    QString operator()(const QString &code, const QString &name);
};

} // namespace QDeclarativeRewrite

QT_END_NAMESPACE

#endif // QDECLARATIVEREWRITE_P_H