Export clang-format16 via ydblib project

6e6be3a95868fde888d801b7590af4044049563f

1 files changed, 145 insertions, 0 deletions

diff --git a/contrib/libs/clang16/include/clang/Rewrite/Frontend/FixItRewriter.h b/contrib/libs/clang16/include/clang/Rewrite/Frontend/FixItRewriter.h
new file mode 100644
index 0000000000..0f878dee56
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+++ b/contrib/libs/clang16/include/clang/Rewrite/Frontend/FixItRewriter.h
@@ -0,0 +1,145 @@
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===- FixItRewriter.h - Fix-It Rewriter Diagnostic Client ------*- C++ -*-===//
+//
+// 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 is a diagnostic client adaptor that performs rewrites as
+// suggested by code modification hints attached to diagnostics. It
+// then forwards any diagnostics to the adapted diagnostic client.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_REWRITE_FRONTEND_FIXITREWRITER_H
+#define LLVM_CLANG_REWRITE_FRONTEND_FIXITREWRITER_H
+
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Edit/EditedSource.h"
+#include "clang/Rewrite/Core/Rewriter.h"
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace clang {
+
+class LangOptions;
+class SourceManager;
+
+class FixItOptions {
+public:
+  FixItOptions() = default;
+  virtual ~FixItOptions();
+
+  /// This file is about to be rewritten. Return the name of the file
+  /// that is okay to write to.
+  ///
+  /// \param fd out parameter for file descriptor. After the call it may be set
+  /// to an open file descriptor for the returned filename, or it will be -1
+  /// otherwise.
+  virtual std::string RewriteFilename(const std::string &Filename, int &fd) = 0;
+
+  /// True if files should be updated in place. RewriteFilename is only called
+  /// if this is false.
+  bool InPlace = false;
+
+  /// Whether to abort fixing a file when not all errors could be fixed.
+  bool FixWhatYouCan = false;
+
+  /// Whether to only fix warnings and not errors.
+  bool FixOnlyWarnings = false;
+
+  /// If true, only pass the diagnostic to the actual diagnostic consumer
+  /// if it is an error or a fixit was applied as part of the diagnostic.
+  /// It basically silences warnings without accompanying fixits.
+  bool Silent = false;
+};
+
+class FixItRewriter : public DiagnosticConsumer {
+  /// The diagnostics machinery.
+  DiagnosticsEngine &Diags;
+
+  edit::EditedSource Editor;
+
+  /// The rewriter used to perform the various code
+  /// modifications.
+  Rewriter Rewrite;
+
+  /// The diagnostic client that performs the actual formatting
+  /// of error messages.
+  DiagnosticConsumer *Client;
+  std::unique_ptr<DiagnosticConsumer> Owner;
+
+  /// Turn an input path into an output path. NULL implies overwriting
+  /// the original.
+  FixItOptions *FixItOpts;
+
+  /// The number of rewriter failures.
+  unsigned NumFailures = 0;
+
+  /// Whether the previous diagnostic was not passed to the consumer.
+  bool PrevDiagSilenced = false;
+
+public:
+  /// Initialize a new fix-it rewriter.
+  FixItRewriter(DiagnosticsEngine &Diags, SourceManager &SourceMgr,
+                const LangOptions &LangOpts, FixItOptions *FixItOpts);
+
+  /// Destroy the fix-it rewriter.
+  ~FixItRewriter() override;
+
+  /// Check whether there are modifications for a given file.
+  bool IsModified(FileID ID) const {
+    return Rewrite.getRewriteBufferFor(ID) != nullptr;
+  }
+
+  using iterator = Rewriter::buffer_iterator;
+
+  // Iteration over files with changes.
+  iterator buffer_begin() { return Rewrite.buffer_begin(); }
+  iterator buffer_end() { return Rewrite.buffer_end(); }
+
+  /// Write a single modified source file.
+  ///
+  /// \returns true if there was an error, false otherwise.
+  bool WriteFixedFile(FileID ID, raw_ostream &OS);
+
+  /// Write the modified source files.
+  ///
+  /// \returns true if there was an error, false otherwise.
+  bool WriteFixedFiles(
+    std::vector<std::pair<std::string, std::string>> *RewrittenFiles = nullptr);
+
+  /// IncludeInDiagnosticCounts - This method (whose default implementation
+  /// returns true) indicates whether the diagnostics handled by this
+  /// DiagnosticConsumer should be included in the number of diagnostics
+  /// reported by DiagnosticsEngine.
+  bool IncludeInDiagnosticCounts() const override;
+
+  /// HandleDiagnostic - Handle this diagnostic, reporting it to the user or
+  /// capturing it to a log as needed.
+  void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
+                        const Diagnostic &Info) override;
+
+  /// Emit a diagnostic via the adapted diagnostic client.
+  void Diag(SourceLocation Loc, unsigned DiagID);
+};
+
+} // namespace clang
+
+#endif // LLVM_CLANG_REWRITE_FRONTEND_FIXITREWRITER_H
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif