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ef83539c58
We currently don't have any tests for remangler error handling, because in asserts builds it asserts. This patch adds a flag that only exists in !NDEBUG builds to turn off assertions when inside the unit tests.
69 lines
2.9 KiB
C++
69 lines
2.9 KiB
C++
//===--- DemanglerAssert.h - Assertions for de/re-mangling ------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a macro, DEMANGLE_ASSERT(), which will assert in the
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// compiler, but in the runtime will return a ManglingError on failure.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_DEMANGLING_ASSERT_H
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#define SWIFT_DEMANGLING_ASSERT_H
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#include "llvm/Support/Compiler.h"
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#include "swift/Demangling/Demangle.h"
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#include "swift/Demangling/NamespaceMacros.h"
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#if defined(NDEBUG) || defined (SWIFT_RUNTIME)
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// In the runtime and non-asserts builds, DEMANGLER_ASSERT() returns an error.
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#define DEMANGLER_ASSERT(expr, node) \
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do { \
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if (!(expr)) \
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return ManglingError(ManglingError::AssertionFailed, (node), __LINE__); \
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} while (0)
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#else
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// Except in unittests, assert builds cause DEMANGLER_ASSERT() to assert()
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#define DEMANGLER_ASSERT(expr, node) \
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do { \
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if (!(expr)) { \
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if (Factory.disableAssertionsForUnitTest) \
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return ManglingError(ManglingError::AssertionFailed, (node), \
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__LINE__); \
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else \
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swift::Demangle::failAssert(__FILE__, __LINE__, node, #expr); \
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} \
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} while (0)
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#endif
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// DEMANGLER_ALWAYS_ASSERT() *always* fails the program, even in the runtime
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#define DEMANGLER_ALWAYS_ASSERT(expr, node) \
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do { \
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if (!(expr)) \
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swift::Demangle::failAssert(__FILE__, __LINE__, node, #expr); \
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} while (0)
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namespace swift {
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namespace Demangle {
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SWIFT_BEGIN_INLINE_NAMESPACE
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[[noreturn]] void failAssert(const char *file, unsigned line, NodePointer node,
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const char *expr);
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SWIFT_END_INLINE_NAMESPACE
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} // end namespace Demangle
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} // end namespace swift
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#endif // SWIFT_DEMANGLING_ASSERT_H
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