//===--- IndexingOptions.h - Options for indexing ---------------*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_INDEX_INDEXINGOPTIONS_H
#define LLVM_CLANG_INDEX_INDEXINGOPTIONS_H

#include "clang/Frontend/FrontendOptions.h"
#include <memory>
#include <string>

namespace clang {
class Decl;
namespace index {

struct IndexingOptions {
  enum class SystemSymbolFilterKind {
    None,
    DeclarationsOnly,
    All,
  };

  SystemSymbolFilterKind SystemSymbolFilter =
      SystemSymbolFilterKind::DeclarationsOnly;
  bool IndexFunctionLocals = false;
  bool IndexImplicitInstantiation = false;
  bool IndexMacros = true;
  // Whether to index macro definitions in the Preprocessor when preprocessor
  // callback is not available (e.g. after parsing has finished). Note that
  // macro references are not available in Preprocessor.
  bool IndexMacrosInPreprocessor = false;
  // Has no effect if IndexFunctionLocals are false.
  bool IndexParametersInDeclarations = false;
  bool IndexTemplateParameters = false;
  // Some information might only be available at the end of a translation unit,
  // this flag delays the indexing for this purpose (e.g. instantiation of
  // function definitions). This option only takes effect on operations that
  // actually build the AST, e.g. `createIndexingAction()` and
  // `createIndexingASTConsumer()`.
  bool DeferIndexingToEndOfTranslationUnit = false;

  // If set, skip indexing inside some declarations for performance.
  // This prevents traversal, so skipping a struct means its declaration an
  // members won't be indexed, but references elsewhere to that struct will be.
  // Currently this is only checked for top-level declarations.
  std::function<bool(const Decl *)> ShouldTraverseDecl;
};

} // namespace index
} // namespace clang

#endif // LLVM_CLANG_INDEX_INDEXINGOPTIONS_H
