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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include <QtTest>
#include <pp.h>
//TESTED_COMPONENT=src/libs/cplusplus
using namespace CPlusPlus;
class tst_Preprocessor: public QObject
{
Q_OBJECT
private Q_SLOTS:
void unfinished_function_like_macro_call();
void nasty_macro_expansion();
};
void tst_Preprocessor::unfinished_function_like_macro_call()
{
Client *client = 0; // no client.
Environment env;
Preprocessor preprocess(client, &env);
QByteArray preprocessed = preprocess(QLatin1String("<stdin>"),
QByteArray("\n#define foo(a,b) a + b"
"\nfoo(1, 2\n"));
QCOMPARE(preprocessed.trimmed(), QByteArray("foo"));
}
void tst_Preprocessor::nasty_macro_expansion()
{
QByteArray input("\n"
"#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))\n"
"#define is_power_of_two(x) ( !((x) & ((x)-1)) )\n"
"#define low_bit_mask(x) ( ((x)-1) & ~(x) )\n"
"#define is_valid_mask(x) is_power_of_two(1LU + (x) + low_bit_mask(x))\n"
"#define compile_ffs2(__x) \\\n"
" __builtin_choose_expr(((__x) & 0x1), 0, 1)\n"
"#define compile_ffs4(__x) \\\n"
" __builtin_choose_expr(((__x) & 0x3), \\\n"
" (compile_ffs2((__x))), \\\n"
" (compile_ffs2((__x) >> 2) + 2))\n"
"#define compile_ffs8(__x) \\\n"
" __builtin_choose_expr(((__x) & 0xf), \\\n"
" (compile_ffs4((__x))), \\\n"
" (compile_ffs4((__x) >> 4) + 4))\n"
"#define compile_ffs16(__x) \\\n"
" __builtin_choose_expr(((__x) & 0xff), \\\n"
" (compile_ffs8((__x))), \\\n"
" (compile_ffs8((__x) >> 8) + 8))\n"
"#define compile_ffs32(__x) \\\n"
" __builtin_choose_expr(((__x) & 0xffff), \\\n"
" (compile_ffs16((__x))), \\\n"
" (compile_ffs16((__x) >> 16) + 16))\n"
"#define FIELD_CHECK(__mask, __type) \\\n"
" BUILD_BUG_ON(!(__mask) || \\\n"
" !is_valid_mask(__mask) || \\\n"
" (__mask) != (__type)(__mask)) \\\n"
"\n"
"#define FIELD32(__mask) \\\n"
"({ \\\n"
" FIELD_CHECK(__mask, u32); \\\n"
" (struct rt2x00_field32) { \\\n"
" compile_ffs32(__mask), (__mask) \\\n"
" }; \\\n"
"})\n"
"#define BBPCSR 0x00f0\n"
"#define BBPCSR_BUSY FIELD32(0x00008000)\n"
"#define WAIT_FOR_BBP(__dev, __reg) \\\n"
" rt2x00pci_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))\n"
"if (WAIT_FOR_BBP(rt2x00dev, ®)) {}\n"
);
Client *client = 0; // no client.
Environment env;
Preprocessor preprocess(client, &env);
QByteArray preprocessed = preprocess(QLatin1String("<stdin>"), input);
QVERIFY(!preprocessed.contains("FIELD32"));
}
QTEST_APPLESS_MAIN(tst_Preprocessor)
#include "tst_preprocessor.moc"
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