summaryrefslogtreecommitdiffstats
path: root/generator.cpp
blob: f11eed77fa95f70a521515ca6090eacd71e2a228 (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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
/*
 * This file is part of the API Extractor project.
 *
 * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 *
 * Contact: PySide team <contact@pyside.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include "generator.h"
#include "reporthandler.h"
#include "fileout.h"
#include "apiextractor.h"

#include <QtCore/QDir>
#include <QtCore/QFile>
#include <QtCore/QFileInfo>
#include <QDebug>

struct Generator::GeneratorPrivate {
    const ApiExtractor* apiextractor;
    QString outDir;
    // License comment
    QString licenseComment;
    QString packageName;
    int numGenerated;
    int numGeneratedWritten;
};

Generator::Generator() : m_d(new GeneratorPrivate)
{
    m_d->numGenerated = 0;
    m_d->numGeneratedWritten = 0;
}

Generator::~Generator()
{
    delete m_d;
}

bool Generator::setup(const ApiExtractor& extractor, const QMap< QString, QString > args)
{
    m_d->apiextractor = &extractor;
    // FIXME: Avoid this ugly hack to get the package name.. and... why the name "package"!?
    foreach (const AbstractMetaClass* cppClass, m_d->apiextractor->classes()) {
        if (m_d->packageName.isEmpty()
            && cppClass->typeEntry()->generateCode()
            && !cppClass->package().isEmpty()) {
            m_d->packageName = cppClass->package();
            break;
        }
    }
    return doSetup(args);
}

QMap< QString, QString > Generator::options() const
{
    return QMap<QString, QString>();
}

AbstractMetaClassList Generator::classes() const
{
    return m_d->apiextractor->classes();
}

AbstractMetaFunctionList Generator::globalFunctions() const
{
    return m_d->apiextractor->globalFunctions();
}

AbstractMetaEnumList Generator::globalEnums() const
{
    return m_d->apiextractor->globalEnums();
}

QList<const PrimitiveTypeEntry*> Generator::primitiveTypes() const
{
    return m_d->apiextractor->primitiveTypes();
}

QList<const ContainerTypeEntry*> Generator::containerTypes() const
{
    return m_d->apiextractor->containerTypes();
}

const AbstractMetaEnum* Generator::findAbstractMetaEnum(const EnumTypeEntry* typeEntry) const
{
    return m_d->apiextractor->findAbstractMetaEnum(typeEntry);
}

const AbstractMetaEnum* Generator::findAbstractMetaEnum(const TypeEntry* typeEntry) const
{
    return m_d->apiextractor->findAbstractMetaEnum(typeEntry);
}

const AbstractMetaEnum* Generator::findAbstractMetaEnum(const FlagsTypeEntry* typeEntry) const
{
    return m_d->apiextractor->findAbstractMetaEnum(typeEntry);
}

const AbstractMetaEnum* Generator::findAbstractMetaEnum(const AbstractMetaType* metaType) const
{
    return m_d->apiextractor->findAbstractMetaEnum(metaType);
}

QSet< QString > Generator::qtMetaTypeDeclaredTypeNames() const
{
    return m_d->apiextractor->qtMetaTypeDeclaredTypeNames();
}

QString Generator::licenseComment() const
{
    return m_d->licenseComment;
}

void Generator::setLicenseComment(const QString& licenseComment)
{
    m_d->licenseComment = licenseComment;
}

QString Generator::packageName() const
{
    return m_d->packageName;
}

QString Generator::moduleName() const
{
    QString& pkgName = m_d->packageName;
    return QString(pkgName).remove(0, pkgName.lastIndexOf('.') + 1);
}

QString Generator::outputDirectory() const
{
    return m_d->outDir;
}

void Generator::setOutputDirectory(const QString &outDir)
{
    m_d->outDir = outDir;
}

int Generator::numGenerated() const
{
    return m_d->numGenerated;
}

int Generator::numGeneratedAndWritten() const
{
    return m_d->numGeneratedWritten;
}

void Generator::generate()
{
    foreach (AbstractMetaClass *cls, m_d->apiextractor->classes()) {
        if (!shouldGenerate(cls))
            continue;

        QString fileName = fileNameForClass(cls);
        if (fileName.isNull())
            continue;
        ReportHandler::debugSparse(QString("generating: %1").arg(fileName));

        FileOut fileOut(outputDirectory() + '/' + subDirectoryForClass(cls) + '/' + fileName);
        generateClass(fileOut.stream, cls);

        if (fileOut.done())
            ++m_d->numGeneratedWritten;
        ++m_d->numGenerated;
    }
    finishGeneration();
}

bool Generator::shouldGenerate(const AbstractMetaClass* metaClass) const
{
    return metaClass->typeEntry()->codeGeneration() & TypeEntry::GenerateTargetLang;
}

void verifyDirectoryFor(const QFile &file)
{
    QDir dir = QFileInfo(file).dir();
    if (!dir.exists()) {
        if (!dir.mkpath(dir.absolutePath()))
            ReportHandler::warning(QString("unable to create directory '%1'")
                                   .arg(dir.absolutePath()));
    }
}

void Generator::replaceTemplateVariables(QString &code, const AbstractMetaFunction *func)
{
    const AbstractMetaClass *cpp_class = func->ownerClass();
    if (cpp_class)
        code.replace("%TYPE", cpp_class->name());

    foreach (AbstractMetaArgument *arg, func->arguments())
        code.replace("%" + QString::number(arg->argumentIndex() + 1), arg->name());

    //template values
    code.replace("%RETURN_TYPE", translateType(func->type(), cpp_class));
    code.replace("%FUNCTION_NAME", func->originalName());

    if (code.contains("%ARGUMENT_NAMES")) {
        QString str;
        QTextStream aux_stream(&str);
        writeArgumentNames(aux_stream, func, Generator::SkipRemovedArguments);
        code.replace("%ARGUMENT_NAMES", str);
    }

    if (code.contains("%ARGUMENTS")) {
        QString str;
        QTextStream aux_stream(&str);
        writeFunctionArguments(aux_stream, func, Options(SkipDefaultValues) | SkipRemovedArguments);
        code.replace("%ARGUMENTS", str);
    }
}

QTextStream& formatCode(QTextStream &s, const QString& code, Indentor &indentor)
{
    // detect number of spaces before the first character
    QStringList lst(code.split("\n"));
    QRegExp nonSpaceRegex("[^\\s]");
    int spacesToRemove = 0;
    foreach(QString line, lst) {
        if (!line.trimmed().isEmpty()) {
            spacesToRemove = line.indexOf(nonSpaceRegex);
            if (spacesToRemove == -1)
                spacesToRemove = 0;
            break;
        }
    }

    foreach(QString line, lst) {
        while (line.end()->isSpace())
            line.chop(1);
        int limit = 0;
        for(int i = 0; i < spacesToRemove; ++i) {
            if (!line[i].isSpace())
                break;
            limit++;
        }
        s << indentor << line.remove(0, limit) << endl;
    }
    return s;
}

AbstractMetaFunctionList Generator::implicitConversions(const TypeEntry* type) const
{
    if (type->isValue()) {
        const AbstractMetaClass* metaClass = classes().findClass(type);
        if (metaClass)
            return metaClass->implicitConversions();
    }
    return AbstractMetaFunctionList();
}

AbstractMetaFunctionList Generator::implicitConversions(const AbstractMetaType* metaType) const
{
    return implicitConversions(metaType->typeEntry());
}

QString Generator::translateType(const AbstractMetaType *cType,
                                 const AbstractMetaClass *context,
                                 Options options) const
{
    QString s;
    static int constLen = strlen("const");

    if (context && cType &&
        context->typeEntry()->isGenericClass() &&
        cType->originalTemplateType()) {
        cType = cType->originalTemplateType();
    }

    if (!cType) {
        s = "void";
    } else if (cType->isArray()) {
        s = translateType(cType->arrayElementType(), context, options) + "[]";
    } else if (options & Generator::EnumAsInts && (cType->isEnum() || cType->isFlags())) {
        s = "int";
    } else {
        if (options & Generator::OriginalName) {
            s = cType->originalTypeDescription().trimmed();
            if ((options & Generator::ExcludeReference) && s.endsWith("&"))
                s = s.left(s.size()-1);

            // remove only the last const (avoid remove template const)
            if (options & Generator::ExcludeConst) {
                int index = s.lastIndexOf("const");

                if (index >= (s.size() - (constLen + 1))) // (VarType const)  or (VarType const[*|&])
                    s = s.remove(index, constLen);
            }
        } else if (options & Generator::ExcludeConst || options & Generator::ExcludeReference) {
            AbstractMetaType* copyType = cType->copy();

            if (options & Generator::ExcludeConst)
                copyType->setConstant(false);

            if (options & Generator::ExcludeReference)
                copyType->setReference(false);

            s = copyType->cppSignature();
            delete copyType;
        } else {
            s = cType->cppSignature();
        }
    }

    return s;
}


QString Generator::subDirectoryForClass(const AbstractMetaClass* clazz) const
{
    return subDirectoryForPackage(clazz->package());
}

QString Generator::subDirectoryForPackage(QString packageName) const
{
    if (packageName.isEmpty())
        packageName = m_d->packageName;
    return QString(packageName).replace(".", QDir::separator());
}