class MemoryBuffer;
class SourceMgr;
class SMDiagnostic;
+ class Twine;
class raw_ostream;
/// SourceMgr - This owns the files read by a parser, handles include stacks,
/// and handles diagnostic wrangling.
class SourceMgr {
+public:
+ /// DiagHandlerTy - Clients that want to handle their own diagnostics in a
+ /// custom way can register a function pointer+context as a diagnostic
+ /// handler. It gets called each time PrintMessage is invoked.
+ typedef void (*DiagHandlerTy)(const SMDiagnostic&, void *Context,
+ unsigned LocCookie);
+private:
struct SrcBuffer {
/// Buffer - The memory buffer for the file.
MemoryBuffer *Buffer;
/// is really private to SourceMgr.cpp.
mutable void *LineNoCache;
+ DiagHandlerTy DiagHandler;
+ void *DiagContext;
+ unsigned DiagLocCookie;
+
SourceMgr(const SourceMgr&); // DO NOT IMPLEMENT
void operator=(const SourceMgr&); // DO NOT IMPLEMENT
public:
- SourceMgr() : LineNoCache(0) {}
+ SourceMgr() : LineNoCache(0), DiagHandler(0), DiagContext(0) {}
~SourceMgr();
void setIncludeDirs(const std::vector<std::string> &Dirs) {
IncludeDirectories = Dirs;
}
+ /// setDiagHandler - Specify a diagnostic handler to be invoked every time
+ /// PrintMessage is called. Ctx and Cookie are passed into the handler when
+ /// it is invoked.
+ void setDiagHandler(DiagHandlerTy DH, void *Ctx = 0, unsigned Cookie = 0) {
+ DiagHandler = DH;
+ DiagContext = Ctx;
+ DiagLocCookie = Cookie;
+ }
+
const SrcBuffer &getBufferInfo(unsigned i) const {
assert(i < Buffers.size() && "Invalid Buffer ID!");
return Buffers[i];
return Buffers[i].IncludeLoc;
}
+ /// AddNewSourceBuffer - Add a new source buffer to this source manager. This
+ /// takes ownership of the memory buffer.
unsigned AddNewSourceBuffer(MemoryBuffer *F, SMLoc IncludeLoc) {
SrcBuffer NB;
NB.Buffer = F;
/// @param Type - If non-null, the kind of message (e.g., "error") which is
/// prefixed to the message.
/// @param ShowLine - Should the diagnostic show the source line.
- void PrintMessage(SMLoc Loc, const std::string &Msg, const char *Type,
+ void PrintMessage(SMLoc Loc, const Twine &Msg, const char *Type,
bool ShowLine = true) const;
/// prefixed to the message.
/// @param ShowLine - Should the diagnostic show the source line.
SMDiagnostic GetMessage(SMLoc Loc,
- const std::string &Msg, const char *Type,
+ const Twine &Msg, const char *Type,
bool ShowLine = true) const;
/// SMDiagnostic - Instances of this class encapsulate one diagnostic report,
/// allowing printing to a raw_ostream as a caret diagnostic.
class SMDiagnostic {
+ const SourceMgr *SM;
+ SMLoc Loc;
std::string Filename;
int LineNo, ColumnNo;
std::string Message, LineContents;
unsigned ShowLine : 1;
public:
- SMDiagnostic() : LineNo(0), ColumnNo(0) {}
- SMDiagnostic(const std::string &FN, int Line, int Col,
+ // Null diagnostic.
+ SMDiagnostic() : SM(0), LineNo(0), ColumnNo(0), ShowLine(0) {}
+ // Diagnostic with no location (e.g. file not found, command line arg error).
+ SMDiagnostic(const std::string &filename, const std::string &Msg,
+ bool showline = true)
+ : SM(0), Filename(filename), LineNo(-1), ColumnNo(-1),
+ Message(Msg), ShowLine(showline) {}
+
+ // Diagnostic with a location.
+ SMDiagnostic(const SourceMgr &sm, SMLoc L, const std::string &FN,
+ int Line, int Col,
const std::string &Msg, const std::string &LineStr,
bool showline = true)
- : Filename(FN), LineNo(Line), ColumnNo(Col), Message(Msg),
+ : SM(&sm), Loc(L), Filename(FN), LineNo(Line), ColumnNo(Col), Message(Msg),
LineContents(LineStr), ShowLine(showline) {}
+ const SourceMgr *getSourceMgr() const { return SM; }
+ SMLoc getLoc() const { return Loc; }
+ const std::string &getFilename() { return Filename; }
+ int getLineNo() const { return LineNo; }
+ int getColumnNo() const { return ColumnNo; }
+ const std::string &getMessage() const { return Message; }
+ const std::string &getLineContents() const { return LineContents; }
+ bool getShowLine() const { return ShowLine; }
+
void Print(const char *ProgName, raw_ostream &S) const;
};