Exception.hxx

//-----------------------------------------------------------------------------
//
// Copyright (c) 1998 - 2007, The Regents of the University of California
// Produced at the Lawrence Livermore National Laboratory
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// full copyright notice is contained in the file COPYRIGHT located at the root
// of the PyCXX distribution.
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//    documentation and/or materials provided with the distribution.
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//-----------------------------------------------------------------------------

#ifndef __CXX_Exception_h
#define __CXX_Exception_h

#include "CXX/WrapPython.h"
#include "CXX/Version.hxx"
#include "CXX/Config.hxx"
#include "CXX/IndirectPythonInterface.hxx"

#include <string>
#include <iostream>

// This mimics the Python structure, in order to minimize confusion
namespace Py
{
    class ExtensionExceptionType;

    class Object;

    class Exception
    {
    public:
        Exception( ExtensionExceptionType &exception, const std::string& reason );
        Exception( ExtensionExceptionType &exception, Object &reason );

        explicit Exception ()
        {}
        
        Exception (const std::string& reason)
        {
            PyErr_SetString (Py::_Exc_RuntimeError(), reason.c_str());
        }
        
        Exception (PyObject* exception, const std::string& reason)
        {
            PyErr_SetString (exception, reason.c_str());
        }
        
        Exception (PyObject* exception, Object &reason);        

        void clear() // clear the error
        // technically but not philosophically const
        {
            PyErr_Clear();
        }
    };
    
    
    // Abstract
    class StandardError: public Exception
    {
    protected: 
        explicit StandardError()
        {}
    };
    
    class LookupError: public StandardError
    {
    protected: 
        explicit LookupError()
        {}
    };
    
    class ArithmeticError: public StandardError
    {
    protected: 
        explicit ArithmeticError()
        {}
    };
    
    class EnvironmentError: public StandardError
    {
    protected: 
        explicit EnvironmentError()
        {}
    };
    
    // Concrete
    
    class TypeError: public StandardError
    {
    public:
        TypeError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_TypeError(),reason.c_str());
        }
    };
    
    class IndexError: public LookupError
    {
    public:
        IndexError (const std::string& reason)
            : LookupError()
        {
            PyErr_SetString (Py::_Exc_IndexError(), reason.c_str());
        }
    };
    
    class AttributeError: public StandardError
    {
    public:
        AttributeError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_AttributeError(), reason.c_str());
        }        
    };
    
    class NameError: public StandardError
    {
    public:
        NameError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_NameError(), reason.c_str());
        }
    };
    
    class RuntimeError: public StandardError
    {
    public:
        RuntimeError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_RuntimeError(), reason.c_str());
        }
    };
    
    class SystemError: public StandardError
    {
    public:
        SystemError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_SystemError(),reason.c_str());
        }
    };
    
    class KeyError: public LookupError
    {
    public:
        KeyError (const std::string& reason)
            : LookupError()
        {
            PyErr_SetString (Py::_Exc_KeyError(),reason.c_str());
        }
    };
    
    
    class ValueError: public StandardError
    {
    public:
        ValueError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_ValueError(), reason.c_str());
        }
    };
    
    class OverflowError: public ArithmeticError
    {
    public:
        OverflowError (const std::string& reason)
            : ArithmeticError()
        {
            PyErr_SetString (Py::_Exc_OverflowError(), reason.c_str());
        }        
    };
    
    class ZeroDivisionError: public ArithmeticError
    {
    public:
        ZeroDivisionError (const std::string& reason)
            : ArithmeticError() 
        {
            PyErr_SetString (Py::_Exc_ZeroDivisionError(), reason.c_str());
        }
    };
    
    class FloatingPointError: public ArithmeticError
    {
    public:
        FloatingPointError (const std::string& reason)
            : ArithmeticError() 
        {
            PyErr_SetString (Py::_Exc_FloatingPointError(), reason.c_str());
        }
    };
    
    class MemoryError: public StandardError
    {
    public:
        MemoryError (const std::string& reason)
            : StandardError()
        {
            PyErr_SetString (Py::_Exc_MemoryError(), reason.c_str());
        }    
    };
    
    class SystemExit: public StandardError
    {
    public:
        SystemExit (const std::string& reason)
            : StandardError() 
        {
            PyErr_SetString (Py::_Exc_SystemExit(),reason.c_str());
        }
    };

}// Py

#endif