From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001
From: "Zancanaro; Carlo" <czan8762@plang3.cs.usyd.edu.au>
Date: Mon, 24 Sep 2012 09:58:17 +1000
Subject: Add the clang library to the repo (with some of my changes, too).

---
 clang/tools/libclang/ARCMigrate.cpp | 139 ++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 clang/tools/libclang/ARCMigrate.cpp

(limited to 'clang/tools/libclang/ARCMigrate.cpp')

diff --git a/clang/tools/libclang/ARCMigrate.cpp b/clang/tools/libclang/ARCMigrate.cpp
new file mode 100644
index 0000000..5ee5cf6
--- /dev/null
+++ b/clang/tools/libclang/ARCMigrate.cpp
@@ -0,0 +1,139 @@
+//===- ARCMigrate.cpp - Clang-C ARC Migration Library ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// 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/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.
+//===----------------------------------------------------------------------===//
+
+extern "C" {
+
+CXRemapping clang_getRemappings(const char *migrate_dir_path) {
+  bool Logging = ::getenv("LIBCLANG_LOGGING");
+
+  if (!migrate_dir_path) {
+    if (Logging)
+      llvm::errs() << "clang_getRemappings was called with NULL parameter\n";
+    return 0;
+  }
+
+  bool exists = false;
+  llvm::sys::fs::exists(migrate_dir_path, exists);
+  if (!exists) {
+    if (Logging) {
+      llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path
+                   << "\")\n";
+      llvm::errs() << "\"" << migrate_dir_path << "\" does not exist\n";
+    }
+    return 0;
+  }
+
+  TextDiagnosticBuffer diagBuffer;
+  OwningPtr<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 0;
+  }
+
+  return remap.take();
+}
+
+CXRemapping clang_getRemappingsFromFileList(const char **filePaths,
+                                            unsigned numFiles) {
+  bool Logging = ::getenv("LIBCLANG_LOGGING");
+
+  OwningPtr<Remap> remap(new Remap());
+
+  if (numFiles == 0) {
+    if (Logging)
+      llvm::errs() << "clang_getRemappingsFromFileList was called with "
+                      "numFiles=0\n";
+    return remap.take();
+  }
+
+  if (!filePaths) {
+    if (Logging)
+      llvm::errs() << "clang_getRemappingsFromFileList was called with "
+                      "NULL filePaths\n";
+    return 0;
+  }
+
+  TextDiagnosticBuffer diagBuffer;
+  SmallVector<StringRef, 32> Files;
+  for (unsigned i = 0; i != numFiles; ++i)
+    Files.push_back(filePaths[i]);
+
+  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.take();
+  }
+
+  return remap.take();
+}
+
+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::createCXString(
+                                    static_cast<Remap *>(map)->Vec[index].first,
+                                        /*DupString =*/ true);
+  if (transformed)
+    *transformed = cxstring::createCXString(
+                                   static_cast<Remap *>(map)->Vec[index].second,
+                                  /*DupString =*/ true);
+}
+
+void clang_remap_dispose(CXRemapping map) {
+  delete static_cast<Remap *>(map);
+}
+
+} // end: extern "C"
-- 
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