error.h

#ifndef LE_DISASM_ERROR_H_
#define LE_DISASM_ERROR_H_

#include <sstream>
#include <stdexcept>
#include <string>

#include "stacktrace.h"

// http://marknelson.us/2007/11/13/no-exceptions/
// throw Error() <<"Game over, "
//                     <<mHealth
//                     <<" health points!";
struct Error : public std::exception {
    Error() { print_stacktrace(); }

    Error(const Error& that) { mWhat += that.mStream.str(); }

    virtual ~Error() throw(){};

    virtual const char* what() const throw() {
        if (mStream.str().size()) {
            mWhat += mStream.str();
            mStream.str("");
        }
        return mWhat.c_str();
    }

    template <typename T>
    Error& operator<<(const T& t) {
        mStream << t;
        return *this;
    }

private:
    mutable std::stringstream mStream;
    mutable std::string mWhat;
};

#endif /* LE_DISASM_ERROR_H_ */