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7fbd97f641
This is a new mode of migration, where we avoid modifying the original files but we emit temporary files instead. <path> will be used to keep migration process metadata. Currently the temporary files that are produced are put in the system's temp directory but we can put them in the <path> if is necessary. Also introduce new ARC migration functions in libclang whose only purpose, currently, is to accept <path> and provide pairs of original file/transformed file to map from the originals to the files after transformations are applied. Finally introduce the c-arcmt-test utility that exercises the new libclang functions, update arcmt-test, and add tests for the whole process. rdar://9735086. llvm-svn: 134844
97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
//===- 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/ARCMigrate.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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CMTRemap arcmt_getRemappings(const char *migrate_dir_path) {
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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() << "arcmt_getRemappings was called with NULL parameter\n";
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return 0;
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}
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bool exists = false;
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llvm::sys::fs::exists(migrate_dir_path, exists);
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if (!exists) {
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if (Logging) {
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llvm::errs() << "Error by arcmt_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 0;
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}
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TextDiagnosticBuffer diagBuffer;
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llvm::OwningPtr<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 arcmt_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 0;
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}
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return remap.take();
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}
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unsigned arcmt_remap_getNumFiles(CMTRemap map) {
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return static_cast<Remap *>(map)->Vec.size();
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}
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CXString arcmt_remap_getOriginalFile(CMTRemap map, unsigned index) {
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return cxstring::createCXString(static_cast<Remap *>(map)->Vec[index].first,
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/*DupString =*/ true);
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}
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CXString arcmt_remap_getTransformedFile(CMTRemap map, unsigned index) {
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return cxstring::createCXString(static_cast<Remap *>(map)->Vec[index].second,
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/*DupString =*/ true);
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}
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void arcmt_remap_dispose(CMTRemap 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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