139 lines
4.4 KiB
C++
139 lines
4.4 KiB
C++
/*
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https://github.com/peterix/dfhack
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Copyright (c) 2009-2012 Petr Mrázek (peterix@gmail.com)
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product documentation
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would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#pragma once
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#include "Export.h"
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#include "Pragma.h"
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#include <string>
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#include <sstream>
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#include <exception>
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namespace DFHack
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{
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namespace Error
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{
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/*
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* our wrapper for the C++ exception. used to differentiate
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* the whole array of DFHack exceptions from the rest
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*/
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class DFHACK_EXPORT All : public std::exception{};
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class DFHACK_EXPORT NullPointer : public All {
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const char *varname_;
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public:
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NullPointer(const char *varname_ = NULL) : varname_(varname_) {}
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const char *varname() const { return varname_; }
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virtual const char *what() const throw();
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};
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#define CHECK_NULL_POINTER(var) \
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{ if (var == NULL) throw DFHack::Error::NullPointer(#var); }
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class DFHACK_EXPORT InvalidArgument : public All {
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const char *expr_;
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public:
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InvalidArgument(const char *expr_ = NULL) : expr_(expr_) {}
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const char *expr() const { return expr_; }
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virtual const char *what() const throw();
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};
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#define CHECK_INVALID_ARGUMENT(expr) \
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{ if (!(expr)) throw DFHack::Error::InvalidArgument(#expr); }
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class DFHACK_EXPORT AllSymbols : public All{};
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// Syntax errors and whatnot, the xml can't be read
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class DFHACK_EXPORT SymbolsXmlParse : public AllSymbols
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{
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public:
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SymbolsXmlParse(const char* _desc, int _id, int _row, int _col)
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:desc(_desc), id(_id), row(_row), col(_col)
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{
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std::stringstream s;
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s << "error " << id << ": " << desc << ", at row " << row << " col " << col;
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full = s.str();
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}
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std::string full;
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const std::string desc;
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const int id;
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const int row;
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const int col;
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virtual ~SymbolsXmlParse() throw(){};
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virtual const char* what() const throw()
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{
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return full.c_str();
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}
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};
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class DFHACK_EXPORT SymbolsXmlBadAttribute : public All
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{
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public:
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SymbolsXmlBadAttribute(const char* _attr) : attr(_attr)
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{
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std::stringstream s;
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s << "attribute is either missing or invalid: " << attr;
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full = s.str();
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}
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std::string full;
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std::string attr;
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virtual ~SymbolsXmlBadAttribute() throw(){};
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virtual const char* what() const throw()
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{
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return full.c_str();
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}
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};
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class DFHACK_EXPORT SymbolsXmlNoRoot : public All
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{
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public:
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SymbolsXmlNoRoot() {}
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virtual ~SymbolsXmlNoRoot() throw(){};
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virtual const char* what() const throw()
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{
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return "Symbol file is missing root element.";
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}
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};
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class DFHACK_EXPORT SymbolsXmlUnderspecifiedEntry : public All
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{
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public:
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SymbolsXmlUnderspecifiedEntry(const char * _where) : where(_where)
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{
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std::stringstream s;
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s << "Underspecified symbol file entry, each entry needs to set both the name attribute and have a value. parent: " << where;
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full = s.str();
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}
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virtual ~SymbolsXmlUnderspecifiedEntry() throw(){};
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std::string where;
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std::string full;
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virtual const char* what() const throw()
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{
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return full.c_str();
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}
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};
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}
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}
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