1 #ifndef LLVM_CLANG_FORMAT_PARSING_H
2 #define LLVM_CLANG_FORMAT_PARSING_H
4 #include "clang/Analysis/Analyses/FormatString.h"
5 #include "clang/AST/ASTContext.h"
6 #include "clang/AST/Type.h"
7 #include "llvm/Support/raw_ostream.h"
10 class UpdateOnReturn {
14 UpdateOnReturn(T &valueToUpdate, const T &valueToCopy)
15 : ValueToUpdate(valueToUpdate), ValueToCopy(valueToCopy) {}
18 ValueToUpdate = ValueToCopy;
23 namespace analyze_format_string {
25 OptionalAmount ParseAmount(const char *&Beg, const char *E);
26 OptionalAmount ParseNonPositionAmount(const char *&Beg, const char *E,
29 OptionalAmount ParsePositionAmount(FormatStringHandler &H,
30 const char *Start, const char *&Beg,
31 const char *E, PositionContext p);
33 bool ParseFieldWidth(FormatStringHandler &H,
35 const char *Start, const char *&Beg, const char *E,
38 bool ParseArgPosition(FormatStringHandler &H,
39 FormatSpecifier &CS, const char *Start,
40 const char *&Beg, const char *E);
42 /// Returns true if a LengthModifier was parsed and installed in the
43 /// FormatSpecifier& argument, and false otherwise.
44 bool ParseLengthModifier(FormatSpecifier &FS, const char *&Beg, const char *E);
46 template <typename T> class SpecifierResult {
51 SpecifierResult(bool stop = false)
52 : Start(0), Stop(stop) {}
53 SpecifierResult(const char *start,
55 : FS(fs), Start(start), Stop(false) {}
57 const char *getStart() const { return Start; }
58 bool shouldStop() const { return Stop; }
59 bool hasValue() const { return Start != 0; }
60 const T &getValue() const {
64 const T &getValue() { return FS; }
67 } // end analyze_format_string namespace
68 } // end clang namespace