#ifndef SUPPORT_SOURCEMGR_H
#define SUPPORT_SOURCEMGR_H
#include "llvm/Support/SMLoc.h"
#include <string>
#include <vector>
#include <cassert>
namespace llvm {
class MemoryBuffer;
class SourceMgr;
class SMDiagnostic;
class Twine;
class raw_ostream;
class SourceMgr {
public:
typedef void (*DiagHandlerTy)(const SMDiagnostic&, void *Context);
private:
struct SrcBuffer {
MemoryBuffer *Buffer;
SMLoc IncludeLoc;
};
std::vector<SrcBuffer> Buffers;
std::vector<std::string> IncludeDirectories;
mutable void *LineNoCache;
DiagHandlerTy DiagHandler;
void *DiagContext;
SourceMgr(const SourceMgr&); void operator=(const SourceMgr&); public:
SourceMgr() : LineNoCache(0), DiagHandler(0), DiagContext(0) {}
~SourceMgr();
void setIncludeDirs(const std::vector<std::string> &Dirs) {
IncludeDirectories = Dirs;
}
void setDiagHandler(DiagHandlerTy DH, void *Ctx = 0) {
DiagHandler = DH;
DiagContext = Ctx;
}
const SrcBuffer &getBufferInfo(unsigned i) const {
assert(i < Buffers.size() && "Invalid Buffer ID!");
return Buffers[i];
}
const MemoryBuffer *getMemoryBuffer(unsigned i) const {
assert(i < Buffers.size() && "Invalid Buffer ID!");
return Buffers[i].Buffer;
}
SMLoc getParentIncludeLoc(unsigned i) const {
assert(i < Buffers.size() && "Invalid Buffer ID!");
return Buffers[i].IncludeLoc;
}
unsigned AddNewSourceBuffer(MemoryBuffer *F, SMLoc IncludeLoc) {
SrcBuffer NB;
NB.Buffer = F;
NB.IncludeLoc = IncludeLoc;
Buffers.push_back(NB);
return Buffers.size()-1;
}
unsigned AddIncludeFile(const std::string &Filename, SMLoc IncludeLoc);
int FindBufferContainingLoc(SMLoc Loc) const;
unsigned FindLineNumber(SMLoc Loc, int BufferID = -1) const;
void PrintMessage(SMLoc Loc, const Twine &Msg, const char *Type,
bool ShowLine = true) const;
SMDiagnostic GetMessage(SMLoc Loc,
const Twine &Msg, const char *Type,
bool ShowLine = true) const;
private:
void PrintIncludeStack(SMLoc IncludeLoc, raw_ostream &OS) const;
};
class SMDiagnostic {
const SourceMgr *SM;
SMLoc Loc;
std::string Filename;
int LineNo, ColumnNo;
std::string Message, LineContents;
unsigned ShowLine : 1;
public:
SMDiagnostic() : SM(0), LineNo(0), ColumnNo(0), ShowLine(0) {}
SMDiagnostic(const std::string &filename, const std::string &Msg)
: SM(0), Filename(filename), LineNo(-1), ColumnNo(-1),
Message(Msg), ShowLine(false) {}
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)
: 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() const { 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;
};
}
#endif