| //===--- 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 |
