| //===- ARCMigrate.cpp - Clang-C ARC Migration Library ---------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the main API hooks in the Clang-C ARC Migration library. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang-c/Index.h" |
| #include "CXString.h" |
| #include "clang/ARCMigrate/ARCMT.h" |
| #include "clang/Config/config.h" |
| #include "clang/Frontend/TextDiagnosticBuffer.h" |
| #include "llvm/Support/FileSystem.h" |
| |
| using namespace clang; |
| using namespace arcmt; |
| |
| namespace { |
| |
| struct Remap { |
| std::vector<std::pair<std::string, std::string> > Vec; |
| }; |
| |
| } // anonymous namespace. |
| |
| //===----------------------------------------------------------------------===// |
| // libClang public APIs. |
| //===----------------------------------------------------------------------===// |
| |
| CXRemapping clang_getRemappings(const char *migrate_dir_path) { |
| #if !CLANG_ENABLE_ARCMT |
| llvm::errs() << "error: feature not enabled in this build\n"; |
| return nullptr; |
| #else |
| bool Logging = ::getenv("LIBCLANG_LOGGING"); |
| |
| if (!migrate_dir_path) { |
| if (Logging) |
| llvm::errs() << "clang_getRemappings was called with NULL parameter\n"; |
| return nullptr; |
| } |
| |
| if (!llvm::sys::fs::exists(migrate_dir_path)) { |
| if (Logging) { |
| llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path |
| << "\")\n"; |
| llvm::errs() << "\"" << migrate_dir_path << "\" does not exist\n"; |
| } |
| return nullptr; |
| } |
| |
| TextDiagnosticBuffer diagBuffer; |
| std::unique_ptr<Remap> remap(new Remap()); |
| |
| bool err = arcmt::getFileRemappings(remap->Vec, migrate_dir_path,&diagBuffer); |
| |
| if (err) { |
| if (Logging) { |
| llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path |
| << "\")\n"; |
| for (TextDiagnosticBuffer::const_iterator |
| I = diagBuffer.err_begin(), E = diagBuffer.err_end(); I != E; ++I) |
| llvm::errs() << I->second << '\n'; |
| } |
| return nullptr; |
| } |
| |
| return remap.release(); |
| #endif |
| } |
| |
| CXRemapping clang_getRemappingsFromFileList(const char **filePaths, |
| unsigned numFiles) { |
| #if !CLANG_ENABLE_ARCMT |
| llvm::errs() << "error: feature not enabled in this build\n"; |
| return nullptr; |
| #else |
| bool Logging = ::getenv("LIBCLANG_LOGGING"); |
| |
| std::unique_ptr<Remap> remap(new Remap()); |
| |
| if (numFiles == 0) { |
| if (Logging) |
| llvm::errs() << "clang_getRemappingsFromFileList was called with " |
| "numFiles=0\n"; |
| return remap.release(); |
| } |
| |
| if (!filePaths) { |
| if (Logging) |
| llvm::errs() << "clang_getRemappingsFromFileList was called with " |
| "NULL filePaths\n"; |
| return nullptr; |
| } |
| |
| TextDiagnosticBuffer diagBuffer; |
| SmallVector<StringRef, 32> Files(filePaths, filePaths + numFiles); |
| |
| bool err = arcmt::getFileRemappingsFromFileList(remap->Vec, Files, |
| &diagBuffer); |
| |
| if (err) { |
| if (Logging) { |
| llvm::errs() << "Error by clang_getRemappingsFromFileList\n"; |
| for (TextDiagnosticBuffer::const_iterator |
| I = diagBuffer.err_begin(), E = diagBuffer.err_end(); I != E; ++I) |
| llvm::errs() << I->second << '\n'; |
| } |
| return remap.release(); |
| } |
| |
| return remap.release(); |
| #endif |
| } |
| |
| unsigned clang_remap_getNumFiles(CXRemapping map) { |
| return static_cast<Remap *>(map)->Vec.size(); |
| |
| } |
| |
| void clang_remap_getFilenames(CXRemapping map, unsigned index, |
| CXString *original, CXString *transformed) { |
| if (original) |
| *original = cxstring::createDup( |
| static_cast<Remap *>(map)->Vec[index].first); |
| if (transformed) |
| *transformed = cxstring::createDup( |
| static_cast<Remap *>(map)->Vec[index].second); |
| } |
| |
| void clang_remap_dispose(CXRemapping map) { |
| delete static_cast<Remap *>(map); |
| } |