aboutsummaryrefslogtreecommitdiff
path: root/clang-tidy/utils/HeaderFileExtensionsUtils.cpp
blob: b734b89779d8352d22b72c524c796c140481aecb (plain)
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
//===--- HeaderFileExtensionsUtils.cpp - clang-tidy--------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "HeaderFileExtensionsUtils.h"
#include "clang/Basic/CharInfo.h"
#include "llvm/Support/Path.h"

namespace clang {
namespace tidy {
namespace utils {

bool isExpansionLocInHeaderFile(
    SourceLocation Loc, const SourceManager &SM,
    const HeaderFileExtensionsSet &HeaderFileExtensions) {
  SourceLocation ExpansionLoc = SM.getExpansionLoc(Loc);
  return isHeaderFileExtension(SM.getFilename(ExpansionLoc),
                               HeaderFileExtensions);
}

bool isPresumedLocInHeaderFile(
    SourceLocation Loc, SourceManager &SM,
    const HeaderFileExtensionsSet &HeaderFileExtensions) {
  PresumedLoc PresumedLocation = SM.getPresumedLoc(Loc);
  return isHeaderFileExtension(PresumedLocation.getFilename(),
                               HeaderFileExtensions);
}

bool isSpellingLocInHeaderFile(
    SourceLocation Loc, SourceManager &SM,
    const HeaderFileExtensionsSet &HeaderFileExtensions) {
  SourceLocation SpellingLoc = SM.getSpellingLoc(Loc);
  return isHeaderFileExtension(SM.getFilename(SpellingLoc),
                               HeaderFileExtensions);
}

bool parseHeaderFileExtensions(StringRef AllHeaderFileExtensions,
                               HeaderFileExtensionsSet &HeaderFileExtensions,
                               char delimiter) {
  SmallVector<StringRef, 5> Suffixes;
  AllHeaderFileExtensions.split(Suffixes, delimiter);
  HeaderFileExtensions.clear();
  for (StringRef Suffix : Suffixes) {
    StringRef Extension = Suffix.trim();
    for (StringRef::const_iterator it = Extension.begin();
         it != Extension.end(); ++it) {
      if (!isAlphanumeric(*it))
        return false;
    }
    HeaderFileExtensions.insert(Extension);
  }
  return true;
}

bool isHeaderFileExtension(
    StringRef FileName, const HeaderFileExtensionsSet &HeaderFileExtensions) {
  StringRef extension = llvm::sys::path::extension(FileName);
  if (extension.empty())
    return false;
  // Skip "." prefix.
  return HeaderFileExtensions.count(extension.substr(1)) > 0;
}

} // namespace utils
} // namespace tidy
} // namespace clang