1 //===- ARCMigrate.cpp - Clang-C ARC Migration Library ---------------------===//
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 implements the main API hooks in the Clang-C ARC Migration library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "clang-c/Index.h"
15 #include "CXString.h"
16 #include "clang/ARCMigrate/ARCMT.h"
17 #include "clang/Frontend/TextDiagnosticBuffer.h"
18 #include "llvm/Support/FileSystem.h"
19
20 using namespace clang;
21 using namespace arcmt;
22
23 namespace {
24
25 struct Remap {
26 std::vector<std::pair<std::string, std::string> > Vec;
27 };
28
29 } // anonymous namespace.
30
31 //===----------------------------------------------------------------------===//
32 // libClang public APIs.
33 //===----------------------------------------------------------------------===//
34
35 extern "C" {
36
clang_getRemappings(const char * migrate_dir_path)37 CXRemapping clang_getRemappings(const char *migrate_dir_path) {
38 bool Logging = ::getenv("LIBCLANG_LOGGING");
39
40 if (!migrate_dir_path) {
41 if (Logging)
42 llvm::errs() << "clang_getRemappings was called with NULL parameter\n";
43 return 0;
44 }
45
46 bool exists = false;
47 llvm::sys::fs::exists(migrate_dir_path, exists);
48 if (!exists) {
49 if (Logging) {
50 llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path
51 << "\")\n";
52 llvm::errs() << "\"" << migrate_dir_path << "\" does not exist\n";
53 }
54 return 0;
55 }
56
57 TextDiagnosticBuffer diagBuffer;
58 OwningPtr<Remap> remap(new Remap());
59
60 bool err = arcmt::getFileRemappings(remap->Vec, migrate_dir_path,&diagBuffer);
61
62 if (err) {
63 if (Logging) {
64 llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path
65 << "\")\n";
66 for (TextDiagnosticBuffer::const_iterator
67 I = diagBuffer.err_begin(), E = diagBuffer.err_end(); I != E; ++I)
68 llvm::errs() << I->second << '\n';
69 }
70 return 0;
71 }
72
73 return remap.take();
74 }
75
clang_getRemappingsFromFileList(const char ** filePaths,unsigned numFiles)76 CXRemapping clang_getRemappingsFromFileList(const char **filePaths,
77 unsigned numFiles) {
78 bool Logging = ::getenv("LIBCLANG_LOGGING");
79
80 OwningPtr<Remap> remap(new Remap());
81
82 if (numFiles == 0) {
83 if (Logging)
84 llvm::errs() << "clang_getRemappingsFromFileList was called with "
85 "numFiles=0\n";
86 return remap.take();
87 }
88
89 if (!filePaths) {
90 if (Logging)
91 llvm::errs() << "clang_getRemappingsFromFileList was called with "
92 "NULL filePaths\n";
93 return 0;
94 }
95
96 TextDiagnosticBuffer diagBuffer;
97 SmallVector<StringRef, 32> Files;
98 for (unsigned i = 0; i != numFiles; ++i)
99 Files.push_back(filePaths[i]);
100
101 bool err = arcmt::getFileRemappingsFromFileList(remap->Vec, Files,
102 &diagBuffer);
103
104 if (err) {
105 if (Logging) {
106 llvm::errs() << "Error by clang_getRemappingsFromFileList\n";
107 for (TextDiagnosticBuffer::const_iterator
108 I = diagBuffer.err_begin(), E = diagBuffer.err_end(); I != E; ++I)
109 llvm::errs() << I->second << '\n';
110 }
111 return remap.take();
112 }
113
114 return remap.take();
115 }
116
clang_remap_getNumFiles(CXRemapping map)117 unsigned clang_remap_getNumFiles(CXRemapping map) {
118 return static_cast<Remap *>(map)->Vec.size();
119
120 }
121
clang_remap_getFilenames(CXRemapping map,unsigned index,CXString * original,CXString * transformed)122 void clang_remap_getFilenames(CXRemapping map, unsigned index,
123 CXString *original, CXString *transformed) {
124 if (original)
125 *original = cxstring::createDup(
126 static_cast<Remap *>(map)->Vec[index].first);
127 if (transformed)
128 *transformed = cxstring::createDup(
129 static_cast<Remap *>(map)->Vec[index].second);
130 }
131
clang_remap_dispose(CXRemapping map)132 void clang_remap_dispose(CXRemapping map) {
133 delete static_cast<Remap *>(map);
134 }
135
136 } // end: extern "C"
137