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//===--- Visibility.h - Visibility enumeration and utilities ----*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the Visibility enumeration and various utility
// functions.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_BASIC_VISIBILITY_H
#define LLVM_CLANG_BASIC_VISIBILITY_H

namespace clang {

/// \link Describes the different kinds of visibility that a
/// declaration may have.  Visibility determines how a declaration
/// interacts with the dynamic linker.  It may also affect whether the
/// symbol can be found by runtime symbol lookup APIs.
///
/// Visibility is not described in any language standard and
/// (nonetheless) sometimes has odd behavior.  Not all platforms
/// support all visibility kinds.
enum Visibility {
  /// Objects with "hidden" visibility are not seen by the dynamic
  /// linker.
  HiddenVisibility,

  /// Objects with "protected" visibility are seen by the dynamic
  /// linker but always dynamically resolve to an object within this
  /// shared object.
  ProtectedVisibility,

  /// Objects with "default" visibility are seen by the dynamic linker
  /// and act like normal objects.
  DefaultVisibility
};

inline Visibility minVisibility(Visibility L, Visibility R) {
  return L < R ? L : R;
}

}

#endif // LLVM_CLANG_BASIC_VISIBILITY_H