Error.cpp revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
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/raw_ostream.h"
18#include <cstdlib>
19
20namespace llvm {
21
22SourceMgr SrcMgr;
23unsigned ErrorsPrinted = 0;
24
25static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
26                         const Twine &Msg) {
27  // Count the total number of errors printed.
28  // This is used to exit with an error code if there were any errors.
29  if (Kind == SourceMgr::DK_Error)
30    ++ErrorsPrinted;
31
32  SMLoc NullLoc;
33  if (Loc.empty())
34    Loc = NullLoc;
35  SrcMgr.PrintMessage(Loc.front(), Kind, Msg);
36  for (unsigned i = 1; i < Loc.size(); ++i)
37    SrcMgr.PrintMessage(Loc[i], SourceMgr::DK_Note,
38                        "instantiated from multiclass");
39}
40
41void PrintWarning(ArrayRef<SMLoc> WarningLoc, const Twine &Msg) {
42  PrintMessage(WarningLoc, SourceMgr::DK_Warning, Msg);
43}
44
45void PrintWarning(const char *Loc, const Twine &Msg) {
46  SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Warning, Msg);
47}
48
49void PrintWarning(const Twine &Msg) {
50  errs() << "warning:" << Msg << "\n";
51}
52
53void PrintError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
54  PrintMessage(ErrorLoc, SourceMgr::DK_Error, Msg);
55}
56
57void PrintError(const char *Loc, const Twine &Msg) {
58  SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Error, Msg);
59}
60
61void PrintError(const Twine &Msg) {
62  errs() << "error:" << Msg << "\n";
63}
64
65void PrintFatalError(const Twine &Msg) {
66  PrintError(Msg);
67  std::exit(1);
68}
69
70void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
71  PrintError(ErrorLoc, Msg);
72  std::exit(1);
73}
74
75} // end namespace llvm
76