//===--- PlatformConditionKinds.def - Kinds of Platform Conditions - C++ ---*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file defines macros used for macro-metaprogramming with the kinds of
// platform conditions that can be used for conditional compilation.
//
//===----------------------------------------------------------------------===//

#ifndef PLATFORM_CONDITION
#define PLATFORM_CONDITION(LABEL, IDENTIFIER)
#endif
#ifndef PLATFORM_CONDITION_
#define PLATFORM_CONDITION_(LABEL, IDENTIFIER) PLATFORM_CONDITION(LABEL, "_" IDENTIFIER)
#endif

/// The active os target (OSX, iOS, Linux, etc.)
PLATFORM_CONDITION(OS, "os")

/// The active arch target (x86_64, i386, arm, arm64, etc.)
PLATFORM_CONDITION(Arch, "arch")

/// The active endianness target (big or little)
PLATFORM_CONDITION_(Endianness, "endian")

/// The active arch target pointer bit width (_32 or _64)
PLATFORM_CONDITION_(PointerBitWidth, "pointerBitWidth")

/// Runtime support (_ObjC or _Native)
PLATFORM_CONDITION_(Runtime, "runtime")

/// Conditional import of module
PLATFORM_CONDITION(CanImport, "canImport")

/// Target Environment (currently just 'simulator' or absent)
PLATFORM_CONDITION(TargetEnvironment, "targetEnvironment")

/// Pointer authentication enabled
PLATFORM_CONDITION_(PtrAuth, "ptrauth")

/// The active arch target's max atomic bit width.
PLATFORM_CONDITION_(HasAtomicBitWidth, "hasAtomicBitWidth")

#undef PLATFORM_CONDITION
#undef PLATFORM_CONDITION_