| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
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| 3 | |
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| 4 | #ifndef PREPROCESSOR_H |
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| 5 | #define PREPROCESSOR_H |
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| 6 | |
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| 7 | #include "parser.h" |
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| 8 | #include <qlist.h> |
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| 9 | #include <qset.h> |
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| 10 | #include <stdio.h> |
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| 11 | |
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| 12 | QT_BEGIN_NAMESPACE |
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| 13 | |
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| 14 | struct Macro |
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| 15 | { |
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| 16 | Macro() : isFunction(false), isVariadic(false) {} |
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| 17 | bool isFunction; |
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| 18 | bool isVariadic; |
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| 19 | Symbols arguments; |
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| 20 | Symbols symbols; |
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| 21 | }; |
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| 22 | |
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| 23 | #ifdef USE_LEXEM_STORE |
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| 24 | typedef QByteArray MacroName; |
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| 25 | #else |
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| 26 | typedef SubArray MacroName; |
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| 27 | #endif |
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| 28 | typedef QHash<MacroName, Macro> Macros; |
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| 29 | |
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| 30 | class QFile; |
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| 31 | |
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| 32 | class Preprocessor : public Parser |
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| 33 | { |
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| 34 | public: |
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| 35 | Preprocessor(){} |
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| 36 | static bool preprocessOnly; |
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| 37 | QList<QByteArray> frameworks; |
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| 38 | QSet<QByteArray> preprocessedIncludes; |
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| 39 | QHash<QByteArray, QByteArray> nonlocalIncludePathResolutionCache; |
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| 40 | Macros macros; |
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| 41 | QByteArray resolveInclude(const QByteArray &filename, const QByteArray &relativeTo); |
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| 42 | Symbols preprocessed(const QByteArray &filename, QFile *device); |
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| 43 | |
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| 44 | void parseDefineArguments(Macro *m); |
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| 45 | |
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| 46 | void skipUntilEndif(); |
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| 47 | bool skipBranch(); |
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| 48 | |
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| 49 | void substituteUntilNewline(Symbols &substituted); |
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| 50 | static Symbols macroExpandIdentifier(Preprocessor *that, SymbolStack &symbols, int lineNum, QByteArray *macroName); |
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| 51 | static void macroExpand(Symbols *into, Preprocessor *that, const Symbols &toExpand, |
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| 52 | qsizetype &index, int lineNum, bool one, |
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| 53 | const QSet<QByteArray> &excludeSymbols = QSet<QByteArray>()); |
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| 54 | |
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| 55 | int evaluateCondition(); |
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| 56 | |
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| 57 | enum TokenizeMode { TokenizeCpp, TokenizePreprocessor, PreparePreprocessorStatement, TokenizePreprocessorStatement, TokenizeInclude, PrepareDefine, TokenizeDefine }; |
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| 58 | static Symbols tokenize(const QByteArray &input, int lineNum = 1, TokenizeMode mode = TokenizeCpp); |
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| 59 | |
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| 60 | void setDebugIncludes(bool value); |
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| 61 | |
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| 62 | private: |
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| 63 | void until(Token); |
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| 64 | |
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| 65 | void preprocess(const QByteArray &filename, Symbols &preprocessed); |
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| 66 | bool debugIncludes = false; |
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| 67 | }; |
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| 68 | |
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| 69 | QT_END_NAMESPACE |
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| 70 | |
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| 71 | #endif // PREPROCESSOR_H |
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| 72 | |
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