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gnException.cpp

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#include "gn/gnException.h"
#include <iostream>

void gnException::AddCaller(const char* const function)
{
        string func(function);
        string pretty_func = func.substr(0, func.find('(')+1);
        pretty_func += func.substr(func.rfind(')'), func.length());
        function_trace.push_back(pretty_func);
}

ostream& operator<<(ostream& os, const gnException& gne){ 
        //write exception to stream.
        os << "Exception " << gne.m_code.GetName() << " thrown ";
        list<string>::const_iterator func_iter = gne.function_trace.begin();

        //print the original function
        if(func_iter != gne.function_trace.end()){
                os << "from\n" << *func_iter << " in " << gne.m_file << " " << gne.m_line;
                func_iter++;
        }

        //print the call stack
        while(func_iter != gne.function_trace.end()){
                os << "\nCalled by " << *func_iter;
                func_iter++;
        }
        if(gne.m_message.length() > 0)
                os <<"\n" << gne.m_message;
        os << "\n";
        return os;
}

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