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/*
* mptAssert.h
* -----------
* Purpose: assert and static_assert
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#pragma once
#include "openmpt/all/BuildSettings.hpp"
#include "mpt/base/source_location.hpp"
#include "mptBaseMacros.h"
OPENMPT_NAMESPACE_BEGIN
// Static code checkers might need to get the knowledge of our assertions transferred to them.
#define MPT_CHECKER_ASSUME_ASSERTIONS 1
//#define MPT_CHECKER_ASSUME_ASSERTIONS 0
#ifdef MPT_BUILD_ANALYZED
#if MPT_COMPILER_MSVC
#if MPT_CHECKER_ASSUME_ASSERTIONS
#define MPT_CHECKER_ASSUME(x) __analysis_assume(!!(x))
#endif
#elif MPT_COMPILER_CLANG
#if MPT_CHECKER_ASSUME_ASSERTIONS
#ifdef NDEBUG
#error "Builds for static analyzers depend on assert() being enabled, but the current build has #define NDEBUG. This makes no sense."
#endif
OPENMPT_NAMESPACE_END
#include <cassert>
OPENMPT_NAMESPACE_BEGIN
#define MPT_CHECKER_ASSUME(x) assert(!!(x))
#endif
#endif // MPT_COMPILER
#endif // MPT_BUILD_ANALYZED
#ifndef MPT_CHECKER_ASSUME
#define MPT_CHECKER_ASSUME(x) do { } while(0)
#endif
#if defined(MPT_WITH_MFC) && !defined(MPT_CPPCHECK_CUSTOM)
#if !defined(ASSERT)
#error "MFC is expected to #define ASSERT"
#endif // !defined(ASERRT)
#define MPT_FRAMEWORK_ASSERT_IS_DEFINED
#if defined(_DEBUG)
#define MPT_FRAMEWORK_ASSERT_IS_ACTIVE 1
#else // !_DEBUG
#define MPT_FRAMEWORK_ASSERT_IS_ACTIVE 0
#endif // _DEBUG
// let MFC handle our asserts
#define MPT_ASSERT_USE_FRAMEWORK 1
#else // !MPT_WITH_MFC
#if defined(ASSERT)
#define MPT_FRAMEWORK_ASSERT_IS_DEFINED
#if defined(_DEBUG)
#define MPT_FRAMEWORK_ASSERT_IS_ACTIVE 1
#else // !_DEBUG
#define MPT_FRAMEWORK_ASSERT_IS_ACTIVE 0
#endif // _DEBUG
#endif // !defined(ASERRT)
// handle assert in our own way without relying on some platform-/framework-specific assert implementation
#define MPT_ASSERT_USE_FRAMEWORK 0
#endif // MPT_WITH_MFC
#if defined(MPT_FRAMEWORK_ASSERT_IS_DEFINED) && (MPT_ASSERT_USE_FRAMEWORK == 1)
#define MPT_ASSERT_NOTREACHED() ASSERT(0)
#define MPT_ASSERT(expr) ASSERT((expr))
#define MPT_ASSERT_MSG(expr, msg) ASSERT((expr) && (msg))
#if (MPT_FRAMEWORK_ASSERT_IS_ACTIVE == 1)
#define MPT_ASSERT_ALWAYS(expr) ASSERT((expr))
#define MPT_ASSERT_ALWAYS_MSG(expr, msg) ASSERT((expr) && (msg))
#else
#define MPT_ASSERT_ALWAYS(expr) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr); } MPT_CHECKER_ASSUME(expr); } while(0)
#define MPT_ASSERT_ALWAYS_MSG(expr, msg) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr, msg); } MPT_CHECKER_ASSUME(expr); } while(0)
#ifndef MPT_ASSERT_HANDLER_NEEDED
#define MPT_ASSERT_HANDLER_NEEDED
#endif
#endif
#elif defined(NO_ASSERTS)
#define MPT_ASSERT_NOTREACHED() MPT_CHECKER_ASSUME(0)
#define MPT_ASSERT(expr) MPT_CHECKER_ASSUME(expr)
#define MPT_ASSERT_MSG(expr, msg) MPT_CHECKER_ASSUME(expr)
#define MPT_ASSERT_ALWAYS(expr) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr); } MPT_CHECKER_ASSUME(expr); } while(0)
#define MPT_ASSERT_ALWAYS_MSG(expr, msg) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr, msg); } MPT_CHECKER_ASSUME(expr); } while(0)
#ifndef MPT_ASSERT_HANDLER_NEEDED
#define MPT_ASSERT_HANDLER_NEEDED
#endif
#else // !NO_ASSERTS
#define MPT_ASSERT_NOTREACHED() do { if constexpr(!(0)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), "0"); } MPT_CHECKER_ASSUME(0); } while(0)
#define MPT_ASSERT(expr) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr); } MPT_CHECKER_ASSUME(expr); } while(0)
#define MPT_ASSERT_MSG(expr, msg) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr, msg); } MPT_CHECKER_ASSUME(expr); } while(0)
#define MPT_ASSERT_ALWAYS(expr) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr); } MPT_CHECKER_ASSUME(expr); } while(0)
#define MPT_ASSERT_ALWAYS_MSG(expr, msg) do { if(!(expr)) { OPENMPT_NAMESPACE::AssertHandler(MPT_SOURCE_LOCATION_CURRENT(), #expr, msg); } MPT_CHECKER_ASSUME(expr); } while(0)
#ifndef MPT_ASSERT_HANDLER_NEEDED
#define MPT_ASSERT_HANDLER_NEEDED
#endif
#endif // NO_ASSERTS
#if defined(MPT_ASSERT_HANDLER_NEEDED)
// custom assert handler needed
MPT_NOINLINE void AssertHandler(const mpt::source_location &loc, const char *expr, const char *msg=nullptr);
#endif // MPT_ASSERT_HANDLER_NEEDED
OPENMPT_NAMESPACE_END
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