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28 
29 #ifndef PREPROCESSOR_H
30 #define PREPROCESSOR_H
31 
32 #include "parser.h"
33 #include <qlist.h>
34 #include <qset.h>
35 #include <stdio.h>
36 
37 QT_BEGIN_NAMESPACE
38 
39 struct Macro
40 {
MacroMacro41     Macro() : isFunction(false), isVariadic(false) {}
42     bool isFunction;
43     bool isVariadic;
44     Symbols arguments;
45     Symbols symbols;
46 };
47 
48 #ifdef USE_LEXEM_STORE
49 typedef QByteArray MacroName;
50 #else
51 typedef SubArray MacroName;
52 #endif
53 typedef QHash<MacroName, Macro> Macros;
54 
55 class QFile;
56 
57 class Preprocessor : public Parser
58 {
59 public:
Preprocessor()60     Preprocessor(){}
61     static bool preprocessOnly;
62     QList<QByteArray> frameworks;
63     QSet<QByteArray> preprocessedIncludes;
64     QHash<QByteArray, QByteArray> nonlocalIncludePathResolutionCache;
65     Macros macros;
66     QByteArray resolveInclude(const QByteArray &filename, const QByteArray &relativeTo);
67     Symbols preprocessed(const QByteArray &filename, QFile *device);
68 
69     void parseDefineArguments(Macro *m);
70 
71     void skipUntilEndif();
72     bool skipBranch();
73 
74     void substituteUntilNewline(Symbols &substituted);
75     static Symbols macroExpandIdentifier(Preprocessor *that, SymbolStack &symbols, int lineNum, QByteArray *macroName);
76     static void macroExpand(Symbols *into, Preprocessor *that, const Symbols &toExpand, int &index, int lineNum, bool one,
77                                const QSet<QByteArray> &excludeSymbols = QSet<QByteArray>());
78 
79     int evaluateCondition();
80 
81     enum TokenizeMode { TokenizeCpp, TokenizePreprocessor, PreparePreprocessorStatement, TokenizePreprocessorStatement, TokenizeInclude, PrepareDefine, TokenizeDefine };
82     static Symbols tokenize(const QByteArray &input, int lineNum = 1, TokenizeMode mode = TokenizeCpp);
83 
84 private:
85     void until(Token);
86 
87     void preprocess(const QByteArray &filename, Symbols &preprocessed);
88 };
89 
90 QT_END_NAMESPACE
91 
92 #endif // PREPROCESSOR_H
93