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/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file handles shared library symbol export decorations. It is recommended
* that all WebKit projects use these definitions so that symbol exports work
* properly on all platforms and compilers that WebKit builds under.
*/
#pragma once
#include <wtf/Platform.h>
// Different platforms have different defaults for symbol visibility. Usually
// the compiler and the linker just take care of it. However for references to
// runtime routines from JIT stubs, it matters to be able to declare a symbol as
// being local to the target being generated, and thus not subject to (e.g.) ELF
// symbol interposition rules.
#if USE(DECLSPEC_ATTRIBUTE)
#define HAVE_INTERNAL_VISIBILITY 1
#define WTF_INTERNAL
#elif USE(VISIBILITY_ATTRIBUTE)
#define HAVE_INTERNAL_VISIBILITY 1
#define WTF_INTERNAL __attribute__((visibility("hidden")))
#else
#define WTF_INTERNAL
#endif
#if USE(DECLSPEC_ATTRIBUTE)
#define WTF_EXPORT_DECLARATION __declspec(dllexport)
#define WTF_IMPORT_DECLARATION __declspec(dllimport)
#elif USE(VISIBILITY_ATTRIBUTE)
#define WTF_EXPORT_DECLARATION __attribute__((visibility("default")))
#define WTF_IMPORT_DECLARATION WTF_EXPORT_DECLARATION
#else
#define WTF_EXPORT_DECLARATION
#define WTF_IMPORT_DECLARATION
#endif
#if !defined(WTF_EXPORT_PRIVATE)
#if defined(BUILDING_WTF) || defined(STATICALLY_LINKED_WITH_WTF)
#define WTF_EXPORT_PRIVATE WTF_EXPORT_DECLARATION
#else
#define WTF_EXPORT_PRIVATE WTF_IMPORT_DECLARATION
#endif
#endif
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