54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
#ifndef _ERROR_H
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#define _ERROR_H
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#include <exception>
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#include <sstream>
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namespace ledger {
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class error : public std::exception
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{
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std::string reason;
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public:
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error(const std::string& _reason) throw() : reason(_reason) {}
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virtual ~error() throw() {}
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virtual const char* what() const throw() {
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return reason.c_str();
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}
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};
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class compute_error : public error
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{
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public:
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compute_error(const std::string& reason) throw() : error(reason) {}
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virtual ~compute_error() throw() {}
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};
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class expr_error : public error
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{
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public:
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expr_error(const std::string& reason) throw() : error(reason) {}
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virtual ~expr_error() throw() {}
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};
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class parse_error : public error
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{
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unsigned int line;
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std::string file;
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public:
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parse_error(const std::string& _file, const unsigned int _line,
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const std::string& reason) throw()
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: error(reason), line(_line), file(_file) {}
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virtual ~parse_error() throw() {}
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virtual const char* what() const throw() {
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static std::ostringstream msg;
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msg << file << ", line " << line << ": " << error::what();
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return msg.str().c_str();
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}
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};
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} // namespace ledger
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#endif // _CONSTRAINT_H
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