forked from qt-creator/qt-creator
9806b1e165
When a PP line ended with a \ (join line) and the next line was empty (ending th joining), the following token would be incorrectly marked as joined. Done-with: Roberto Raggi
83 lines
3.9 KiB
C++
83 lines
3.9 KiB
C++
#include <QtTest>
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#include <pp.h>
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using namespace CPlusPlus;
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class tst_Preprocessor: public QObject
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{
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Q_OBJECT
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private Q_SLOTS:
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void unfinished_function_like_macro_call();
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void nasty_macro_expansion();
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};
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void tst_Preprocessor::unfinished_function_like_macro_call()
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{
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Client *client = 0; // no client.
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Environment env;
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Preprocessor preprocess(client, &env);
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QByteArray preprocessed = preprocess(QLatin1String("<stdin>"),
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QByteArray("\n#define foo(a,b) a + b"
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"\nfoo(1, 2\n"));
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QCOMPARE(preprocessed.trimmed(), QByteArray("foo"));
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}
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void tst_Preprocessor::nasty_macro_expansion()
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{
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QByteArray input("\n"
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"#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))\n"
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"#define is_power_of_two(x) ( !((x) & ((x)-1)) )\n"
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"#define low_bit_mask(x) ( ((x)-1) & ~(x) )\n"
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"#define is_valid_mask(x) is_power_of_two(1LU + (x) + low_bit_mask(x))\n"
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"#define compile_ffs2(__x) \\\n"
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" __builtin_choose_expr(((__x) & 0x1), 0, 1)\n"
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"#define compile_ffs4(__x) \\\n"
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" __builtin_choose_expr(((__x) & 0x3), \\\n"
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" (compile_ffs2((__x))), \\\n"
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" (compile_ffs2((__x) >> 2) + 2))\n"
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"#define compile_ffs8(__x) \\\n"
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" __builtin_choose_expr(((__x) & 0xf), \\\n"
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" (compile_ffs4((__x))), \\\n"
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" (compile_ffs4((__x) >> 4) + 4))\n"
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"#define compile_ffs16(__x) \\\n"
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" __builtin_choose_expr(((__x) & 0xff), \\\n"
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" (compile_ffs8((__x))), \\\n"
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" (compile_ffs8((__x) >> 8) + 8))\n"
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"#define compile_ffs32(__x) \\\n"
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" __builtin_choose_expr(((__x) & 0xffff), \\\n"
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" (compile_ffs16((__x))), \\\n"
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" (compile_ffs16((__x) >> 16) + 16))\n"
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"#define FIELD_CHECK(__mask, __type) \\\n"
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" BUILD_BUG_ON(!(__mask) || \\\n"
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" !is_valid_mask(__mask) || \\\n"
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" (__mask) != (__type)(__mask)) \\\n"
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"\n"
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"#define FIELD32(__mask) \\\n"
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"({ \\\n"
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" FIELD_CHECK(__mask, u32); \\\n"
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" (struct rt2x00_field32) { \\\n"
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" compile_ffs32(__mask), (__mask) \\\n"
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" }; \\\n"
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"})\n"
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"#define BBPCSR 0x00f0\n"
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"#define BBPCSR_BUSY FIELD32(0x00008000)\n"
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"#define WAIT_FOR_BBP(__dev, __reg) \\\n"
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" rt2x00pci_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))\n"
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"if (WAIT_FOR_BBP(rt2x00dev, ®)) {}\n"
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);
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Client *client = 0; // no client.
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Environment env;
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Preprocessor preprocess(client, &env);
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QByteArray preprocessed = preprocess(QLatin1String("<stdin>"), input);
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QVERIFY(!preprocessed.contains("FIELD32"));
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}
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QTEST_APPLESS_MAIN(tst_Preprocessor)
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#include "tst_preprocessor.moc"
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