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diff --git a/clang-r353983/include/clang/Frontend/ASTConsumers.h b/clang-r353983/include/clang/Frontend/ASTConsumers.h
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+//===--- ASTConsumers.h - ASTConsumer implementations -----------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// AST Consumers.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_FRONTEND_ASTCONSUMERS_H
+#define LLVM_CLANG_FRONTEND_ASTCONSUMERS_H
+
+#include "clang/Basic/LLVM.h"
+#include <memory>
+
+namespace clang {
+
+class ASTConsumer;
+class CodeGenOptions;
+class DiagnosticsEngine;
+class FileManager;
+class LangOptions;
+class Preprocessor;
+class TargetOptions;
+
+// AST pretty-printer: prints out the AST in a format that is close to the
+// original C code.  The output is intended to be in a format such that
+// clang could re-parse the output back into the same AST, but the
+// implementation is still incomplete.
+std::unique_ptr<ASTConsumer> CreateASTPrinter(std::unique_ptr<raw_ostream> OS,
+                                              StringRef FilterString);
+
+// AST dumper: dumps the raw AST in human-readable form to the given output
+// stream, or stdout if OS is nullptr.
+std::unique_ptr<ASTConsumer> CreateASTDumper(std::unique_ptr<raw_ostream> OS,
+                                             StringRef FilterString,
+                                             bool DumpDecls, bool Deserialize,
+                                             bool DumpLookups);
+
+// AST Decl node lister: prints qualified names of all filterable AST Decl
+// nodes.
+std::unique_ptr<ASTConsumer> CreateASTDeclNodeLister();
+
+// Graphical AST viewer: for each function definition, creates a graph of
+// the AST and displays it with the graph viewer "dotty".  Also outputs
+// function declarations to stderr.
+std::unique_ptr<ASTConsumer> CreateASTViewer();
+
+} // end clang namespace
+
+#endif