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/****************************************************************************** |
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* Top contributors (to current version): |
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* Morgan Deters, Tim King, Mathias Preiner |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* cvc5's exception base class and some associated utilities. |
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*/ |
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#include "cvc5_public.h" |
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#ifndef CVC5__EXCEPTION_H |
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#define CVC5__EXCEPTION_H |
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#include <exception> |
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#include <iosfwd> |
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#include <string> |
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#include "cvc5_export.h" |
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namespace cvc5 { |
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class Exception : public std::exception |
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{ |
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protected: |
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std::string d_msg; |
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public: |
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// Constructors |
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Exception() : d_msg("Unknown exception") {} |
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Exception(const std::string& msg) : d_msg(msg) {} |
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Exception(const char* msg) : d_msg(msg) {} |
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// Destructor |
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virtual ~Exception() {} |
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// NON-VIRTUAL METHOD for setting and printing the error message |
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void setMessage(const std::string& msg) { d_msg = msg; } |
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std::string getMessage() const { return d_msg; } |
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// overridden from base class std::exception |
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const char* what() const noexcept override { return d_msg.c_str(); } |
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/** |
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* Get this exception as a string. Note that |
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* cout << ex.toString(); |
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* is subtly different from |
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* cout << ex; |
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* which is equivalent to |
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* ex.toStream(cout); |
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* That is because with the latter two, the output language (and |
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* other preferences) for exprs on the stream is respected. In |
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* toString(), there is no stream, so the parameters are default |
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* and you'll get exprs and types printed using the AST language. |
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*/ |
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std::string toString() const; |
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/** |
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* Printing: feel free to redefine toStream(). When overridden in |
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* a derived class, it's recommended that this method print the |
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* type of exception before the actual message. |
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*/ |
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virtual void toStream(std::ostream& os) const { os << d_msg; } |
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}; /* class Exception */ |
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class CVC5_EXPORT IllegalArgumentException : public Exception |
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{ |
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protected: |
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IllegalArgumentException() : Exception() {} |
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void construct(const char* header, const char* extra, |
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const char* function, const char* tail); |
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void construct(const char* header, const char* extra, |
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const char* function); |
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static std::string format_extra(const char* condStr, const char* argDesc); |
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static const char* s_header; |
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public: |
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IllegalArgumentException(const char* condStr, const char* argDesc, |
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const char* function, const char* tail) : |
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Exception() { |
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construct(s_header, format_extra(condStr, argDesc).c_str(), function, tail); |
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} |
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IllegalArgumentException(const char* condStr, const char* argDesc, |
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const char* function) : |
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Exception() { |
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construct(s_header, format_extra(condStr, argDesc).c_str(), function); |
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} |
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/** |
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* This is a convenience function for building usages that are variadic. |
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* |
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* Having IllegalArgumentException itself be variadic is problematic for |
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* making sure calls to IllegalArgumentException clean up memory. |
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*/ |
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static std::string formatVariadic(); |
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static std::string formatVariadic(const char* format, ...); |
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}; /* class IllegalArgumentException */ |
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inline std::ostream& operator<<(std::ostream& os, const Exception& e); |
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inline std::ostream& operator<<(std::ostream& os, const Exception& e) |
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{ |
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e.toStream(os); |
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return os; |
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} |
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template <class T> |
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inline void CheckArgument(bool cond, const T& arg, const char* tail); |
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template <class T> |
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inline void CheckArgument(bool cond, |
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const T& arg CVC5_UNUSED, |
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const char* tail CVC5_UNUSED) |
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{ |
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if(__builtin_expect( ( !cond ), false )) { |
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throw ::cvc5::IllegalArgumentException("", "", tail); |
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} |
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} |
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template <class T> |
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inline void CheckArgument(bool cond, const T& arg); |
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template <class T> |
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inline void CheckArgument(bool cond, const T& arg CVC5_UNUSED) |
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{ |
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if(__builtin_expect( ( !cond ), false )) { |
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throw ::cvc5::IllegalArgumentException("", "", ""); |
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} |
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} |
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class CVC5_EXPORT LastExceptionBuffer |
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{ |
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public: |
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LastExceptionBuffer(); |
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~LastExceptionBuffer(); |
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void setContents(const char* string); |
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const char* getContents() const { return d_contents; } |
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static LastExceptionBuffer* getCurrent() { return s_currentBuffer; } |
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static void setCurrent(LastExceptionBuffer* buffer) { s_currentBuffer = buffer; } |
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static const char* currentContents() { |
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return (getCurrent() == nullptr) ? nullptr : getCurrent()->getContents(); |
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} |
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private: |
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/* Disallow copies */ |
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LastExceptionBuffer(const LastExceptionBuffer&) = delete; |
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LastExceptionBuffer& operator=(const LastExceptionBuffer&) = delete; |
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char* d_contents; |
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static thread_local LastExceptionBuffer* s_currentBuffer; |
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}; /* class LastExceptionBuffer */ |
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} // namespace cvc5 |
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#endif /* CVC5__EXCEPTION_H */ |