From 0b57cec536236d46e3dba9bd041533462f33dbb7 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 20 Dec 2019 19:53:05 +0000
Subject: Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.
---
 .../llvm-project/clang/lib/Tooling/Refactoring.cpp | 103 +++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 contrib/llvm-project/clang/lib/Tooling/Refactoring.cpp

(limited to 'contrib/llvm-project/clang/lib/Tooling/Refactoring.cpp')

diff --git a/contrib/llvm-project/clang/lib/Tooling/Refactoring.cpp b/contrib/llvm-project/clang/lib/Tooling/Refactoring.cpp
new file mode 100644
index 000000000000..f379a9c3bcf6
--- /dev/null
+++ b/contrib/llvm-project/clang/lib/Tooling/Refactoring.cpp
@@ -0,0 +1,103 @@
+//===--- Refactoring.cpp - Framework for clang refactoring tools ----------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+//  Implements tools to support refactorings.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Tooling/Refactoring.h"
+#include "clang/Basic/DiagnosticOptions.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Format/Format.h"
+#include "clang/Frontend/TextDiagnosticPrinter.h"
+#include "clang/Lex/Lexer.h"
+#include "clang/Rewrite/Core/Rewriter.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/raw_os_ostream.h"
+
+namespace clang {
+namespace tooling {
+
+RefactoringTool::RefactoringTool(
+    const CompilationDatabase &Compilations, ArrayRef<std::string> SourcePaths,
+    std::shared_ptr<PCHContainerOperations> PCHContainerOps)
+    : ClangTool(Compilations, SourcePaths, std::move(PCHContainerOps)) {}
+
+std::map<std::string, Replacements> &RefactoringTool::getReplacements() {
+  return FileToReplaces;
+}
+
+int RefactoringTool::runAndSave(FrontendActionFactory *ActionFactory) {
+  if (int Result = run(ActionFactory)) {
+    return Result;
+  }
+
+  LangOptions DefaultLangOptions;
+  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
+  TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
+  DiagnosticsEngine Diagnostics(
+      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
+      &*DiagOpts, &DiagnosticPrinter, false);
+  SourceManager Sources(Diagnostics, getFiles());
+  Rewriter Rewrite(Sources, DefaultLangOptions);
+
+  if (!applyAllReplacements(Rewrite)) {
+    llvm::errs() << "Skipped some replacements.\n";
+  }
+
+  return saveRewrittenFiles(Rewrite);
+}
+
+bool RefactoringTool::applyAllReplacements(Rewriter &Rewrite) {
+  bool Result = true;
+  for (const auto &Entry : groupReplacementsByFile(
+           Rewrite.getSourceMgr().getFileManager(), FileToReplaces))
+    Result = tooling::applyAllReplacements(Entry.second, Rewrite) && Result;
+  return Result;
+}
+
+int RefactoringTool::saveRewrittenFiles(Rewriter &Rewrite) {
+  return Rewrite.overwriteChangedFiles() ? 1 : 0;
+}
+
+bool formatAndApplyAllReplacements(
+    const std::map<std::string, Replacements> &FileToReplaces,
+    Rewriter &Rewrite, StringRef Style) {
+  SourceManager &SM = Rewrite.getSourceMgr();
+  FileManager &Files = SM.getFileManager();
+
+  bool Result = true;
+  for (const auto &FileAndReplaces : groupReplacementsByFile(
+           Rewrite.getSourceMgr().getFileManager(), FileToReplaces)) {
+    const std::string &FilePath = FileAndReplaces.first;
+    auto &CurReplaces = FileAndReplaces.second;
+
+    const FileEntry *Entry = Files.getFile(FilePath);
+    FileID ID = SM.getOrCreateFileID(Entry, SrcMgr::C_User);
+    StringRef Code = SM.getBufferData(ID);
+
+    auto CurStyle = format::getStyle(Style, FilePath, "LLVM");
+    if (!CurStyle) {
+      llvm::errs() << llvm::toString(CurStyle.takeError()) << "\n";
+      return false;
+    }
+
+    auto NewReplacements =
+        format::formatReplacements(Code, CurReplaces, *CurStyle);
+    if (!NewReplacements) {
+      llvm::errs() << llvm::toString(NewReplacements.takeError()) << "\n";
+      return false;
+    }
+    Result = applyAllReplacements(*NewReplacements, Rewrite) && Result;
+  }
+  return Result;
+}
+
+} // end namespace tooling
+} // end namespace clang
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