Files
swift-mirror/lib/Demangling/DemanglerAssert.h
Robert Widmann 924d15b03f [NFC] Swap LLVM_NODISCARD for LLVM_ATTRIBUTE_NORETURN
These were originally meant to be no-return functions since they're going to abort. They were accidentally changed to no-discard functions despite not having a return value.
2021-11-17 13:17:37 -08:00

62 lines
2.2 KiB
C++

//===--- DemanglerAssert.h - Assertions for de/re-mangling ------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 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 implements a macro, DEMANGLE_ASSERT(), which will assert in the
// compiler, but in the runtime will return a ManglingError on failure.
//
//===----------------------------------------------------------------------===//
#ifndef SWIFT_DEMANGLING_ASSERT_H
#define SWIFT_DEMANGLING_ASSERT_H
#include "llvm/Support/Compiler.h"
#include "swift/Demangling/Demangle.h"
#include "swift/Demangling/NamespaceMacros.h"
#if SWIFT_RUNTIME
// In the runtime, DEMANGLER_ASSERT() returns an error
#define DEMANGLER_ASSERT(expr, node) \
do { \
if (!(expr)) \
return ManglingError(ManglingError::AssertionFailed, (node), __LINE__); \
} while (0)
#elif !defined(NDEBUG)
// If NDEBUG is not defined, DEMANGLER_ASSERT() works like assert()
#define DEMANGLER_ASSERT(expr, node) \
do { \
if (!(expr)) \
swift::Demangle::failAssert(__FILE__, __LINE__, node, #expr); \
} while (0)
#else
// Otherwise, DEMANGLER_ASSERT() does nothing
#define DEMANGLER_ASSERT(expr, node)
#endif // SWIFT_RUNTIME
namespace swift {
namespace Demangle {
SWIFT_BEGIN_INLINE_NAMESPACE
LLVM_ATTRIBUTE_NORETURN void failAssert(const char *file, unsigned line,
NodePointer node, const char *expr);
SWIFT_END_INLINE_NAMESPACE
} // end namespace Demangle
} // end namespace swift
#endif // SWIFT_DEMANGLING_ASSERT_H