lib/TableGen/Error.cpp

   1 //===- Error.cpp - tblgen error handling helper routines --------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file contains error handling helper routines to pretty-print diagnostic
  10 // messages from tblgen.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/TableGen/Error.h"
  15 #include "llvm/ADT/Twine.h"
  16 #include "llvm/Support/Signals.h"
  17 #include "llvm/Support/WithColor.h"
  18 #include "llvm/Support/raw_ostream.h"
  19 #include <cstdlib>
  20
  21 namespace llvm {
  22
  23 SourceMgr SrcMgr;
  24 unsigned ErrorsPrinted = 0;
  25
  26 static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
  27                          const Twine &Msg) {
  28   // Count the total number of errors printed.
  29   // This is used to exit with an error code if there were any errors.
  30   if (Kind == SourceMgr::DK_Error)
  31     ++ErrorsPrinted;
  32
  33   SMLoc NullLoc;
  34   if (Loc.empty())
  35     Loc = NullLoc;
  36   SrcMgr.PrintMessage(Loc.front(), Kind, Msg);
  37   for (unsigned i = 1; i < Loc.size(); ++i)
  38     SrcMgr.PrintMessage(Loc[i], SourceMgr::DK_Note,
  39                         "instantiated from multiclass");
  40 }
  41
  42 void PrintNote(ArrayRef<SMLoc> NoteLoc, const Twine &Msg) {
  43   PrintMessage(NoteLoc, SourceMgr::DK_Note, Msg);
  44 }
  45
  46 void PrintWarning(ArrayRef<SMLoc> WarningLoc, const Twine &Msg) {
  47   PrintMessage(WarningLoc, SourceMgr::DK_Warning, Msg);
  48 }
  49
  50 void PrintWarning(const char *Loc, const Twine &Msg) {
  51   SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Warning, Msg);
  52 }
  53
  54 void PrintWarning(const Twine &Msg) { WithColor::warning() << Msg << "\n"; }
  55
  56 void PrintError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
  57   PrintMessage(ErrorLoc, SourceMgr::DK_Error, Msg);
  58 }
  59
  60 void PrintError(const char *Loc, const Twine &Msg) {
  61   SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Error, Msg);
  62 }
  63
  64 void PrintError(const Twine &Msg) { WithColor::error() << Msg << "\n"; }
  65
  66 void PrintFatalError(const Twine &Msg) {
  67   PrintError(Msg);
  68   // The following call runs the file cleanup handlers.
  69   sys::RunInterruptHandlers();
  70   std::exit(1);
  71 }
  72
  73 void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
  74   PrintError(ErrorLoc, Msg);
  75   // The following call runs the file cleanup handlers.
  76   sys::RunInterruptHandlers();
  77   std::exit(1);
  78 }
  79
  80 } // end namespace llvm