errors.h

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#ifndef INCLUDE_ERRORS_H_
#define INCLUDE_ERRORS_H_
 
#include <stdexcept>
#include <string>
 
namespace mixal {
 
class ExpressionError : public std::exception {
 public:
    explicit ExpressionError(int index, const std::string& message) : _index(index), _message(message) {}
 
    inline int index() const { return _index; }
 
    const char* what() const noexcept override {
        return _message.c_str();
    }
 private:
    int _index;  
    std::string _message;  
};
 
class ParseError : public std::exception {
 public:
    explicit ParseError(int index, const std::string& message) : _index(index), _message(message) {}
 
    inline int index() const { return _index; }
 
    const char* what() const noexcept override {
        return _message.c_str();
    }
 private:
    int _index;  
    std::string _message;  
};
 
class RuntimeError : public std::exception {
 public:
    explicit RuntimeError(int line, const std::string& message) : _line(line), _message(message) {}
 
    inline int line() const { return _line; }
 
    const char* what() const noexcept override {
        return _message.c_str();
    }
 private:
    int _line;  
    std::string _message;  
};
 
};  // namespace mixal
 
 
#endif  // INCLUDE_ERRORS_H_