lib/TableGen/Error.cpp

   1 //===- Error.cpp - tblgen error handling helper routines --------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains error handling helper routines to pretty-print diagnostic
  11 // messages from tblgen.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/TableGen/Error.h"
  16 #include "llvm/ADT/Twine.h"
  17 #include "llvm/Support/Signals.h"
  18 #include "llvm/Support/WithColor.h"
  19 #include "llvm/Support/raw_ostream.h"
  20 #include <cstdlib>
  21
  22 namespace llvm {
  23
  24 SourceMgr SrcMgr;
  25 unsigned ErrorsPrinted = 0;
  26
  27 static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
  28                          const Twine &Msg) {
  29   // Count the total number of errors printed.
  30   // This is used to exit with an error code if there were any errors.
  31   if (Kind == SourceMgr::DK_Error)
  32     ++ErrorsPrinted;
  33
  34   SMLoc NullLoc;
  35   if (Loc.empty())
  36     Loc = NullLoc;
  37   SrcMgr.PrintMessage(Loc.front(), Kind, Msg);
  38   for (unsigned i = 1; i < Loc.size(); ++i)
  39     SrcMgr.PrintMessage(Loc[i], SourceMgr::DK_Note,
  40                         "instantiated from multiclass");
  41 }
  42
  43 void PrintNote(ArrayRef<SMLoc> NoteLoc, const Twine &Msg) {
  44   PrintMessage(NoteLoc, SourceMgr::DK_Note, Msg);
  45 }
  46
  47 void PrintWarning(ArrayRef<SMLoc> WarningLoc, const Twine &Msg) {
  48   PrintMessage(WarningLoc, SourceMgr::DK_Warning, Msg);
  49 }
  50
  51 void PrintWarning(const char *Loc, const Twine &Msg) {
  52   SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Warning, Msg);
  53 }
  54
  55 void PrintWarning(const Twine &Msg) { WithColor::warning() << Msg << "\n"; }
  56
  57 void PrintError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
  58   PrintMessage(ErrorLoc, SourceMgr::DK_Error, Msg);
  59 }
  60
  61 void PrintError(const char *Loc, const Twine &Msg) {
  62   SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Error, Msg);
  63 }
  64
  65 void PrintError(const Twine &Msg) { WithColor::error() << Msg << "\n"; }
  66
  67 void PrintFatalError(const Twine &Msg) {
  68   PrintError(Msg);
  69   // The following call runs the file cleanup handlers.
  70   sys::RunInterruptHandlers();
  71   std::exit(1);
  72 }
  73
  74 void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
  75   PrintError(ErrorLoc, Msg);
  76   // The following call runs the file cleanup handlers.
  77   sys::RunInterruptHandlers();
  78   std::exit(1);
  79 }
  80
  81 } // end namespace llvm