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