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dd4a3b583a
Static analyzers typically don't do cross-translation unit analysis, so they don't understand that most of the Poco::Bugcheck methods never return. Unfortunately, some of them also don't understand noreturn annotations (see e.g. http://en.cppreference.com/w/cpp/language/attributes), so decorating Bugcheck doesn't help. Instead redefine all the Poco assertion macros to just call abort() iff we're parsed by a known static analyzer.
203 lines
5.7 KiB
C++
203 lines
5.7 KiB
C++
//
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// Bugcheck.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/Bugcheck.h#1 $
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//
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// Library: Foundation
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// Package: Core
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// Module: Bugcheck
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//
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// Definition of the Bugcheck class and the self-testing macros.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_Bugcheck_INCLUDED
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#define Foundation_Bugcheck_INCLUDED
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#include "Poco/Foundation.h"
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#include <string>
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#if defined(_DEBUG)
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# include <iostream>
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#endif
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namespace Poco {
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class Foundation_API Bugcheck
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/// This class provides some static methods that are
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/// used by the
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/// poco_assert_dbg(), poco_assert(), poco_check_ptr(),
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/// poco_bugcheck() and poco_unexpected() macros.
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/// You should not invoke these methods
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/// directly. Use the macros instead, as they
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/// automatically provide useful context information.
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{
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public:
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static void assertion(const char* cond, const char* file, int line, const char* text = 0);
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/// An assertion failed. Break into the debugger, if
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/// possible, then throw an AssertionViolationException.
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static void nullPointer(const char* ptr, const char* file, int line);
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/// An null pointer was encountered. Break into the debugger, if
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/// possible, then throw an NullPointerException.
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static void bugcheck(const char* file, int line);
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/// An internal error was encountered. Break into the debugger, if
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/// possible, then throw an BugcheckException.
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static void bugcheck(const char* msg, const char* file, int line);
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/// An internal error was encountered. Break into the debugger, if
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/// possible, then throw an BugcheckException.
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static void unexpected(const char* file, int line);
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/// An exception was caught in a destructor. Break into debugger,
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/// if possible and report exception. Must only be called from
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/// within a catch () block as it rethrows the exception to
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/// determine its class.
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static void debugger(const char* file, int line);
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/// An internal error was encountered. Break into the debugger, if
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/// possible.
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static void debugger(const char* msg, const char* file, int line);
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/// An internal error was encountered. Break into the debugger, if
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/// possible.
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protected:
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static std::string what(const char* msg, const char* file, int line, const char* text = 0);
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};
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} // namespace Poco
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//
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// useful macros (these automatically supply line number and file name)
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//
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#if defined(__KLOCWORK__) || defined(__clang_analyzer__)
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// Short-circuit these macros when under static analysis.
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// Ideally, static analysis tools should understand and reason correctly about
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// noreturn methods such as Bugcheck::bugcheck. In practice, they don't.
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// Help them by turning these macros into 'abort' as described here:
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// https://developer.klocwork.com/documentation/en/insight/10-1/tuning-cc-analysis#Usingthe__KLOCWORK__macro
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#include <cstdlib> // for abort
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#define poco_assert_dbg(cond) do { if (!(cond)) abort(); } while (0)
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#define poco_assert_msg_dbg(cond, text) do { if (!(cond)) abort(); } while (0)
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#define poco_assert(cond) do { if (!(cond)) abort(); } while (0)
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#define poco_assert_msg(cond, text) do { if (!(cond)) abort(); } while (0)
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#define poco_check_ptr(ptr) do { if (!(ptr)) abort(); } while (0)
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#define poco_bugcheck() do { abort(); } while (0)
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#define poco_bugcheck_msg(msg) do { abort(); } while (0)
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#else // defined(__KLOCWORK__) || defined(__clang_analyzer__)
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#if defined(_DEBUG)
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#define poco_assert_dbg(cond) \
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if (!(cond)) Poco::Bugcheck::assertion(#cond, __FILE__, __LINE__); else (void) 0
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#define poco_assert_msg_dbg(cond, text) \
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if (!(cond)) Poco::Bugcheck::assertion(#cond, __FILE__, __LINE__, text); else (void) 0
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#else
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#define poco_assert_msg_dbg(cond, text)
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#define poco_assert_dbg(cond)
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#endif
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#define poco_assert(cond) \
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if (!(cond)) Poco::Bugcheck::assertion(#cond, __FILE__, __LINE__); else (void) 0
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#define poco_assert_msg(cond, text) \
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if (!(cond)) Poco::Bugcheck::assertion(#cond, __FILE__, __LINE__, text); else (void) 0
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#define poco_check_ptr(ptr) \
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if (!(ptr)) Poco::Bugcheck::nullPointer(#ptr, __FILE__, __LINE__); else (void) 0
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#define poco_bugcheck() \
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Poco::Bugcheck::bugcheck(__FILE__, __LINE__)
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#define poco_bugcheck_msg(msg) \
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Poco::Bugcheck::bugcheck(msg, __FILE__, __LINE__)
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#endif // defined(__KLOCWORK__) || defined(__clang_analyzer__)
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#define poco_unexpected() \
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Poco::Bugcheck::unexpected(__FILE__, __LINE__);
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#define poco_debugger() \
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Poco::Bugcheck::debugger(__FILE__, __LINE__)
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#define poco_debugger_msg(msg) \
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Poco::Bugcheck::debugger(msg, __FILE__, __LINE__)
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#if defined(_DEBUG)
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# define poco_stdout_dbg(outstr) \
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std::cout << __FILE__ << '(' << std::dec << __LINE__ << "):" << outstr << std::endl;
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#else
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# define poco_stdout_dbg(outstr)
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#endif
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#if defined(_DEBUG)
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# define poco_stderr_dbg(outstr) \
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std::cerr << __FILE__ << '(' << std::dec << __LINE__ << "):" << outstr << std::endl;
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#else
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# define poco_stderr_dbg(outstr)
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#endif
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//
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// poco_static_assert
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//
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// The following was ported from <boost/static_assert.hpp>
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//
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template <bool x>
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struct POCO_STATIC_ASSERTION_FAILURE;
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template <>
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struct POCO_STATIC_ASSERTION_FAILURE<true>
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{
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enum
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{
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value = 1
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};
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};
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template <int x>
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struct poco_static_assert_test
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{
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};
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#if defined(__GNUC__) && (__GNUC__ == 3) && ((__GNUC_MINOR__ == 3) || (__GNUC_MINOR__ == 4))
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#define poco_static_assert(B) \
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typedef char POCO_JOIN(poco_static_assert_typedef_, __LINE__) \
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[POCO_STATIC_ASSERTION_FAILURE<(bool) (B)>::value]
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#else
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#define poco_static_assert(B) \
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typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool) (B)>)> \
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POCO_JOIN(poco_static_assert_typedef_, __LINE__) POCO_UNUSED
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#endif
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#endif // Foundation_Bugcheck_INCLUDED
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