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 20using namespace clang; 21using namespace arcmt; 22 23namespace { 24 25struct Remap { 26 std::vector<std::pair<std::string, std::string> > Vec; 27}; 28 29} // anonymous namespace. 30 31//===----------------------------------------------------------------------===// 32// libClang public APIs. 33//===----------------------------------------------------------------------===// 34 35extern "C" { 36 37CXRemapping 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 76CXRemapping 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 117unsigned clang_remap_getNumFiles(CXRemapping map) { 118 return static_cast<Remap *>(map)->Vec.size(); 119 120} 121 122void 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 132void clang_remap_dispose(CXRemapping map) { 133 delete static_cast<Remap *>(map); 134} 135 136} // end: extern "C" 137