1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
//===--- CommandLineSourceLoc.h - Parsing for source locations-*- C++ -*---===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Command line parsing for source locations.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
#define LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
#include "llvm/Support/CommandLine.h"
#include <cstdio>
namespace clang {
/// \brief A source location that has been parsed on the command line.
struct ParsedSourceLocation {
std::string FileName;
unsigned Line;
unsigned Column;
};
}
namespace llvm {
namespace cl {
/// \brief Command-line option parser that parses source locations.
///
/// Source locations are of the form filename:line:column.
template<>
class parser<clang::ParsedSourceLocation>
: public basic_parser<clang::ParsedSourceLocation> {
public:
inline bool parse(Option &O, StringRef ArgName, StringRef ArgValue,
clang::ParsedSourceLocation &Val);
};
bool
parser<clang::ParsedSourceLocation>::
parse(Option &O, StringRef ArgName, StringRef ArgValue,
clang::ParsedSourceLocation &Val) {
using namespace clang;
const char *ExpectedFormat
= "source location must be of the form filename:line:column";
StringRef::size_type SecondColon = ArgValue.rfind(':');
if (SecondColon == std::string::npos) {
std::fprintf(stderr, "%s\n", ExpectedFormat);
return true;
}
unsigned Column;
if (ArgValue.substr(SecondColon + 1).getAsInteger(10, Column)) {
std::fprintf(stderr, "%s\n", ExpectedFormat);
return true;
}
ArgValue = ArgValue.substr(0, SecondColon);
StringRef::size_type FirstColon = ArgValue.rfind(':');
if (FirstColon == std::string::npos) {
std::fprintf(stderr, "%s\n", ExpectedFormat);
return true;
}
unsigned Line;
if (ArgValue.substr(FirstColon + 1).getAsInteger(10, Line)) {
std::fprintf(stderr, "%s\n", ExpectedFormat);
return true;
}
Val.FileName = ArgValue.substr(0, FirstColon);
Val.Line = Line;
Val.Column = Column;
return false;
}
}
}
#endif
|
