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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.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief Defines the clang::Visibility enumeration and various utility
/// functions.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_BASIC_VISIBILITY_H
#define LLVM_CLANG_BASIC_VISIBILITY_H
namespace clang {
/// \brief 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
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