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CommandLineSourceLoc.h (199482) CommandLineSourceLoc.h (199990)
1
2//===--- CommandLineSourceLoc.h - Parsing for source locations-*- C++ -*---===//
3//
4// The LLVM Compiler Infrastructure
5//
6// This file is distributed under the University of Illinois Open Source
7// License. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10//
11// Command line parsing for source locations.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
16#define LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
17
18#include "llvm/Support/CommandLine.h"
1
2//===--- CommandLineSourceLoc.h - Parsing for source locations-*- C++ -*---===//
3//
4// The LLVM Compiler Infrastructure
5//
6// This file is distributed under the University of Illinois Open Source
7// License. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10//
11// Command line parsing for source locations.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
16#define LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
17
18#include "llvm/Support/CommandLine.h"
19#include <cstdio>
19#include "llvm/Support/raw_ostream.h"
20
21namespace clang {
22
23/// \brief A source location that has been parsed on the command line.
24struct ParsedSourceLocation {
25 std::string FileName;
26 unsigned Line;
27 unsigned Column;
20
21namespace clang {
22
23/// \brief A source location that has been parsed on the command line.
24struct ParsedSourceLocation {
25 std::string FileName;
26 unsigned Line;
27 unsigned Column;
28
29public:
30 /// Construct a parsed source location from a string; the Filename is empty on
31 /// error.
32 static ParsedSourceLocation FromString(llvm::StringRef Str) {
33 ParsedSourceLocation PSL;
34 std::pair<llvm::StringRef, llvm::StringRef> ColSplit = Str.rsplit(':');
35 std::pair<llvm::StringRef, llvm::StringRef> LineSplit =
36 ColSplit.first.rsplit(':');
37
38 // If both tail splits were valid integers, return success.
39 if (!ColSplit.second.getAsInteger(10, PSL.Column) &&
40 !LineSplit.second.getAsInteger(10, PSL.Line))
41 PSL.FileName = LineSplit.first;
42
43 return PSL;
44 }
28};
29
30}
31
32namespace llvm {
33 namespace cl {
34 /// \brief Command-line option parser that parses source locations.
35 ///

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43 };
44
45 bool
46 parser<clang::ParsedSourceLocation>::
47 parse(Option &O, StringRef ArgName, StringRef ArgValue,
48 clang::ParsedSourceLocation &Val) {
49 using namespace clang;
50
45};
46
47}
48
49namespace llvm {
50 namespace cl {
51 /// \brief Command-line option parser that parses source locations.
52 ///

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60 };
61
62 bool
63 parser<clang::ParsedSourceLocation>::
64 parse(Option &O, StringRef ArgName, StringRef ArgValue,
65 clang::ParsedSourceLocation &Val) {
66 using namespace clang;
67
51 const char *ExpectedFormat
52 = "source location must be of the form filename:line:column";
53 StringRef::size_type SecondColon = ArgValue.rfind(':');
54 if (SecondColon == std::string::npos) {
55 std::fprintf(stderr, "%s\n", ExpectedFormat);
68 Val = ParsedSourceLocation::FromString(ArgValue);
69 if (Val.FileName.empty()) {
70 errs() << "error: "
71 << "source location must be of the form filename:line:column\n";
56 return true;
57 }
58
72 return true;
73 }
74
59 unsigned Column;
60 if (ArgValue.substr(SecondColon + 1).getAsInteger(10, Column)) {
61 std::fprintf(stderr, "%s\n", ExpectedFormat);
62 return true;
63 }
64 ArgValue = ArgValue.substr(0, SecondColon);
65
66 StringRef::size_type FirstColon = ArgValue.rfind(':');
67 if (FirstColon == std::string::npos) {
68 std::fprintf(stderr, "%s\n", ExpectedFormat);
69 return true;
70 }
71 unsigned Line;
72 if (ArgValue.substr(FirstColon + 1).getAsInteger(10, Line)) {
73 std::fprintf(stderr, "%s\n", ExpectedFormat);
74 return true;
75 }
76
77 Val.FileName = ArgValue.substr(0, FirstColon);
78 Val.Line = Line;
79 Val.Column = Column;
80 return false;
81 }
82 }
83}
84
85#endif
75 return false;
76 }
77 }
78}
79
80#endif