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/*
* Copyright (C) 2011, 2012 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.
*/
#ifndef WTF_Compiler_h
#define WTF_Compiler_h
#include "base/compiler_specific.h"
/* COMPILER() - the compiler being used to build the project */
#define COMPILER(WTF_FEATURE) \
(defined WTF_COMPILER_##WTF_FEATURE && WTF_COMPILER_##WTF_FEATURE)
/* ==== COMPILER() - the compiler being used to build the project ==== */
/* COMPILER(CLANG) - Clang */
#if defined(__clang__)
#define WTF_COMPILER_CLANG 1
#endif
/* COMPILER(MSVC) - Microsoft Visual C++ (and Clang when compiling for Windows).
*/
#if defined(_MSC_VER)
#define WTF_COMPILER_MSVC 1
#endif
/* COMPILER(GCC) - GNU Compiler Collection (and Clang when compiling for
* platforms other than Windows). */
#if defined(__GNUC__)
#define WTF_COMPILER_GCC 1
#define GCC_VERSION \
(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#define GCC_VERSION_AT_LEAST(major, minor, patch) \
(GCC_VERSION >= (major * 10000 + minor * 100 + patch))
#else
/* Define this for !GCC compilers, just so we can write things like
* GCC_VERSION_AT_LEAST(4, 1, 0). */
#define GCC_VERSION_AT_LEAST(major, minor, patch) 0
#endif
/* ==== Compiler features ==== */
/* NEVER_INLINE */
// TODO(palmer): Remove this and update callers to use NOINLINE from Chromium
// base. https://bugs.chromium.org/p/chromium/issues/detail?id=632441
#define NEVER_INLINE NOINLINE
/* OBJC_CLASS */
#ifndef OBJC_CLASS
#ifdef __OBJC__
#define OBJC_CLASS @class
#else
#define OBJC_CLASS class
#endif
#endif
/* WTF_PRETTY_FUNCTION */
#if COMPILER(GCC)
#define WTF_PRETTY_FUNCTION __PRETTY_FUNCTION__
#elif COMPILER(MSVC)
#define WTF_PRETTY_FUNCTION __FUNCSIG__
#else
#define WTF_PRETTY_FUNCTION __func__
#endif
/* NO_SANITIZE_UNRELATED_CAST - Disable runtime checks related to casts between
* unrelated objects (-fsanitize=cfi-unrelated-cast or -fsanitize=vptr). */
#if COMPILER(CLANG)
#define NO_SANITIZE_UNRELATED_CAST \
__attribute__((no_sanitize("cfi-unrelated-cast", "vptr")))
#else
#define NO_SANITIZE_UNRELATED_CAST
#endif
#endif /* WTF_Compiler_h */
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