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