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comparison generator/parser/rpp/preprocessor.cpp @ 1:e78566595089

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author mandel
date Mon, 11 May 2009 16:01:50 +0000
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children 09a0f1d048f2
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0:36fb74dc547d 1:e78566595089
1 /****************************************************************************
2 **
3 ** Copyright (C) 1992-2008 Nokia. All rights reserved.
4 ** Copyright 2005 Harald Fernengel <harry@kdevelop.org>
5 **
6 ** This file is part of Qt Jambi.
7 **
8 ** * Commercial Usage
9 * Licensees holding valid Qt Commercial licenses may use this file in
10 * accordance with the Qt Commercial License Agreement provided with the
11 * Software or, alternatively, in accordance with the terms contained in
12 * a written agreement between you and Nokia.
13 *
14 *
15 * GNU General Public License Usage
16 * Alternatively, this file may be used under the terms of the GNU
17 * General Public License versions 2.0 or 3.0 as published by the Free
18 * Software Foundation and appearing in the file LICENSE.GPL included in
19 * the packaging of this file. Please review the following information
20 * to ensure GNU General Public Licensing requirements will be met:
21 * http://www.fsf.org/licensing/licenses/info/GPLv2.html and
22 * http://www.gnu.org/copyleft/gpl.html. In addition, as a special
23 * exception, Nokia gives you certain additional rights. These rights
24 * are described in the Nokia Qt GPL Exception version 1.2, included in
25 * the file GPL_EXCEPTION.txt in this package.
26 *
27 * Qt for Windows(R) Licensees
28 * As a special exception, Nokia, as the sole copyright holder for Qt
29 * Designer, grants users of the Qt/Eclipse Integration plug-in the
30 * right for the Qt/Eclipse Integration to link to functionality
31 * provided by Qt Designer and its related libraries.
32 *
33 *
34 * If you are unsure which license is appropriate for your use, please
35 * contact the sales department at qt-sales@nokia.com.
36
37 **
38 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
39 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
40 **
41 ****************************************************************************/
42
43 #include "preprocessor.h"
44
45 #include <string>
46
47 // register callback for include hooks
48 static void includeFileHook(const std::string &, const std::string &, FILE *);
49
50 #define PP_HOOK_ON_FILE_INCLUDED(A, B, C) includeFileHook(A, B, C)
51 #include "pp.h"
52
53 using namespace rpp;
54
55 #include <QtCore/QtCore>
56
57 class PreprocessorPrivate
58 {
59 public:
60 QByteArray result;
61 pp_environment env;
62 QStringList includePaths;
63
64 void initPP(pp &proc)
65 {
66 foreach(QString path, includePaths)
67 proc.push_include_path(path.toStdString());
68 }
69 };
70
71 QHash<QString, QStringList> includedFiles;
72
73 void includeFileHook(const std::string &fileName, const std::string &filePath, FILE *)
74 {
75 includedFiles[QString::fromStdString(fileName)].append(QString::fromStdString(filePath));
76 }
77
78 Preprocessor::Preprocessor()
79 {
80 d = new PreprocessorPrivate;
81 includedFiles.clear();
82 }
83
84 Preprocessor::~Preprocessor()
85 {
86 delete d;
87 }
88
89 void Preprocessor::processFile(const QString &fileName)
90 {
91 pp proc(d->env);
92 d->initPP(proc);
93
94 d->result.reserve(d->result.size() + 20 * 1024);
95
96 d->result += "# 1 \"" + fileName.toLatin1() + "\"\n"; // ### REMOVE ME
97 proc.file(fileName.toLocal8Bit().constData(), std::back_inserter(d->result));
98 }
99
100 void Preprocessor::processString(const QByteArray &str)
101 {
102 pp proc(d->env);
103 d->initPP(proc);
104
105 proc(str.begin(), str.end(), std::back_inserter(d->result));
106 }
107
108 QByteArray Preprocessor::result() const
109 {
110 return d->result;
111 }
112
113 void Preprocessor::addIncludePaths(const QStringList &includePaths)
114 {
115 d->includePaths += includePaths;
116 }
117
118 QStringList Preprocessor::macroNames() const
119 {
120 QStringList macros;
121
122 pp_environment::const_iterator it = d->env.first_macro();
123 while (it != d->env.last_macro()) {
124 const pp_macro *m = *it;
125 macros += QString::fromLatin1(m->name->begin(), m->name->size());
126 ++it;
127 }
128
129 return macros;
130 }
131
132 QList<Preprocessor::MacroItem> Preprocessor::macros() const
133 {
134 QList<MacroItem> items;
135
136 pp_environment::const_iterator it = d->env.first_macro();
137 while (it != d->env.last_macro()) {
138 const pp_macro *m = *it;
139 MacroItem item;
140 item.name = QString::fromLatin1(m->name->begin(), m->name->size());
141 item.definition = QString::fromLatin1(m->definition->begin(),
142 m->definition->size());
143 for (size_t i = 0; i < m->formals.size(); ++i) {
144 item.parameters += QString::fromLatin1(m->formals[i]->begin(),
145 m->formals[i]->size());
146 }
147 item.isFunctionLike = m->function_like;
148
149 #ifdef PP_WITH_MACRO_POSITION
150 item.fileName = QString::fromLatin1(m->file->begin(), m->file->size());
151 #endif
152 items += item;
153
154 ++it;
155 }
156
157 return items;
158 }
159
160 /*
161 int main()
162 {
163 Preprocessor pp;
164
165 QStringList paths;
166 paths << "/usr/include";
167 pp.addIncludePaths(paths);
168
169 pp.processFile("pp-configuration");
170 pp.processFile("/usr/include/stdio.h");
171
172 qDebug() << pp.result();
173
174 return 0;
175 }
176 */
177