llvm/clang/include/clang/Serialization/ASTWriter.h

//===- ASTWriter.h - AST File Writer ----------------------------*- 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 file defines the ASTWriter class, which writes an AST file
//  containing a serialized representation of a translation unit.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_SERIALIZATION_ASTWRITER_H
#define LLVM_CLANG_SERIALIZATION_ASTWRITER_H

#include "clang/AST/ASTMutationListener.h"
#include "clang/AST/Decl.h"
#include "clang/AST/Type.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Sema/Sema.h"
#include "clang/Sema/SemaConsumer.h"
#include "clang/Serialization/ASTBitCodes.h"
#include "clang/Serialization/ASTDeserializationListener.h"
#include "clang/Serialization/PCHContainerOperations.h"
#include "clang/Serialization/SourceLocationEncoding.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Bitstream/BitstreamWriter.h"
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <ctime>
#include <memory>
#include <queue>
#include <string>
#include <utility>
#include <vector>

namespace clang {

class ASTContext;
class ASTReader;
class Attr;
class CXXRecordDecl;
class FileEntry;
class FPOptionsOverride;
class FunctionDecl;
class HeaderSearch;
class HeaderSearchOptions;
class IdentifierResolver;
class LangOptions;
class MacroDefinitionRecord;
class MacroInfo;
class Module;
class InMemoryModuleCache;
class ModuleFileExtension;
class ModuleFileExtensionWriter;
class NamedDecl;
class ObjCInterfaceDecl;
class PreprocessingRecord;
class Preprocessor;
class RecordDecl;
class Sema;
class SourceManager;
class Stmt;
class StoredDeclsList;
class SwitchCase;
class Token;

namespace SrcMgr {
class FileInfo;
} // namespace SrcMgr

/// Writes an AST file containing the contents of a translation unit.
///
/// The ASTWriter class produces a bitstream containing the serialized
/// representation of a given abstract syntax tree and its supporting
/// data structures. This bitstream can be de-serialized via an
/// instance of the ASTReader class.
class ASTWriter : public ASTDeserializationListener,
                  public ASTMutationListener { … };

/// AST and semantic-analysis consumer that generates a
/// precompiled header from the parsed source code.
class PCHGenerator : public SemaConsumer { … };

class CXX20ModulesGenerator : public PCHGenerator { … };

class ReducedBMIGenerator : public CXX20ModulesGenerator { … };

/// If we can elide the definition of \param D in reduced BMI.
///
/// Generally, we can elide the definition of a declaration if it won't affect
/// the ABI. e.g., the non-inline function bodies.
bool CanElideDeclDef(const Decl *D);

/// A simple helper class to pack several bits in order into (a) 32 bit
/// integer(s).
class BitsPacker { … };

} // namespace clang

#endif // LLVM_CLANG_SERIALIZATION_ASTWRITER_H