Ted Kremenek | d20b24c | 2010-07-16 02:11:26 +0000 | [diff] [blame] | 1 | #ifndef LLVM_CLANG_FORMAT_PARSING_H |
| 2 | #define LLVM_CLANG_FORMAT_PARSING_H |
| 3 | |
Ted Kremenek | d20b24c | 2010-07-16 02:11:26 +0000 | [diff] [blame] | 4 | #include "clang/AST/ASTContext.h" |
| 5 | #include "clang/AST/Type.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 6 | #include "clang/Analysis/Analyses/FormatString.h" |
Ted Kremenek | d20b24c | 2010-07-16 02:11:26 +0000 | [diff] [blame] | 7 | #include "llvm/Support/raw_ostream.h" |
| 8 | |
Dan Gohman | 3c46e8d | 2010-07-26 21:25:24 +0000 | [diff] [blame] | 9 | namespace clang { |
| 10 | |
Hans Wennborg | d02deeb | 2011-12-15 10:25:47 +0000 | [diff] [blame] | 11 | class LangOptions; |
| 12 | |
Ted Kremenek | d20b24c | 2010-07-16 02:11:26 +0000 | [diff] [blame] | 13 | template <typename T> |
| 14 | class UpdateOnReturn { |
| 15 | T &ValueToUpdate; |
| 16 | const T &ValueToCopy; |
| 17 | public: |
| 18 | UpdateOnReturn(T &valueToUpdate, const T &valueToCopy) |
| 19 | : ValueToUpdate(valueToUpdate), ValueToCopy(valueToCopy) {} |
| 20 | |
| 21 | ~UpdateOnReturn() { |
| 22 | ValueToUpdate = ValueToCopy; |
| 23 | } |
| 24 | }; |
| 25 | |
Ted Kremenek | d20b24c | 2010-07-16 02:11:26 +0000 | [diff] [blame] | 26 | namespace analyze_format_string { |
| 27 | |
| 28 | OptionalAmount ParseAmount(const char *&Beg, const char *E); |
| 29 | OptionalAmount ParseNonPositionAmount(const char *&Beg, const char *E, |
| 30 | unsigned &argIndex); |
| 31 | |
| 32 | OptionalAmount ParsePositionAmount(FormatStringHandler &H, |
| 33 | const char *Start, const char *&Beg, |
| 34 | const char *E, PositionContext p); |
| 35 | |
| 36 | bool ParseFieldWidth(FormatStringHandler &H, |
| 37 | FormatSpecifier &CS, |
| 38 | const char *Start, const char *&Beg, const char *E, |
| 39 | unsigned *argIndex); |
| 40 | |
| 41 | bool ParseArgPosition(FormatStringHandler &H, |
| 42 | FormatSpecifier &CS, const char *Start, |
| 43 | const char *&Beg, const char *E); |
| 44 | |
| 45 | /// Returns true if a LengthModifier was parsed and installed in the |
| 46 | /// FormatSpecifier& argument, and false otherwise. |
Hans Wennborg | d02deeb | 2011-12-15 10:25:47 +0000 | [diff] [blame] | 47 | bool ParseLengthModifier(FormatSpecifier &FS, const char *&Beg, const char *E, |
| 48 | const LangOptions &LO, bool IsScanf = false); |
Ted Kremenek | d20b24c | 2010-07-16 02:11:26 +0000 | [diff] [blame] | 49 | |
| 50 | template <typename T> class SpecifierResult { |
| 51 | T FS; |
| 52 | const char *Start; |
| 53 | bool Stop; |
| 54 | public: |
| 55 | SpecifierResult(bool stop = false) |
| 56 | : Start(0), Stop(stop) {} |
| 57 | SpecifierResult(const char *start, |
| 58 | const T &fs) |
| 59 | : FS(fs), Start(start), Stop(false) {} |
| 60 | |
| 61 | const char *getStart() const { return Start; } |
| 62 | bool shouldStop() const { return Stop; } |
| 63 | bool hasValue() const { return Start != 0; } |
| 64 | const T &getValue() const { |
| 65 | assert(hasValue()); |
| 66 | return FS; |
| 67 | } |
| 68 | const T &getValue() { return FS; } |
| 69 | }; |
| 70 | |
| 71 | } // end analyze_format_string namespace |
| 72 | } // end clang namespace |
| 73 | |
| 74 | #endif |