Интерпретатор / _sources / MyLanguage / Errors

#ifndef ERRORS_HPP_
#define ERRORS_HPP_

#include <exception>
#include <string>
#include <sstream> 

namespace Parser_impl {

extern char* tokenName[];

class ParserException : public std::exception {

protected:
	std::string whatStr;
	
public:
	
	
	ParserException(const std::string& str = "") : whatStr(str) {}

	virtual const char* what() const throw()
	{
		return whatStr.c_str();
	}	
	
	virtual ~ParserException() throw () {}
	
};


class TokenParserException : public ParserException {
	
public:	
	
	TokenParserException(int line)
	{
		std::ostringstream os;
		os << "Token parser exception: Bad char, line: " << line+1 << '!';
		
		whatStr = os.str() ;
	}
	
	TokenParserException(int line, char bad )
	{
		std::ostringstream os;
		os << "Token parser exception: Bad char: '" << bad << "', line: " << line+1 << '!';
		
		whatStr = os.str() ;
	}
	
	TokenParserException(int line, char bad, char expect )
	{
		std::ostringstream os;
		os 	<< "Token parser exception: Bad char: '" << bad << "', expected: '" 
			<< expect << "', line: " << line+1 << '!';
		
		whatStr = os.str() ;
	}
	
	TokenParserException(const std::string& str)  
	{
		whatStr = "Token parser exception: ";
		whatStr += str;
	}

};

class SyntacticParserException : public ParserException {
	
public:

	SyntacticParserException(const std::string& str)
	{
		whatStr = "Parser exception: ";
		whatStr += str;
	}    
        
    SyntacticParserException(const std::string& str, int line)
    {
    	std::ostringstream os;
        os << "Parser exception: " << str << ", line: " << line+1 << '!';
        
        whatStr = os.str() ;
                
    }
    
	SyntacticParserException(int tok, int line)
    {
    	std::ostringstream os;
        os << "Parser exception: Expected '" << tokenName[tok] << "', line: " << line+1 << '!';
        
        whatStr = os.str() ;
                
    }
   
};



class RuntimeException : public ParserException {
	
public:

	RuntimeException(const std::string& str) 
	{
		whatStr = "Runtime exception: ";
		whatStr += str;
	}

};

}

#endif /*ERRORS_HPP_*/