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//-----------------------------------------------------------------------------
//
// Copyright (c) 1998 - 2007, The Regents of the University of California
// Produced at the Lawrence Livermore National Laboratory
// All rights reserved.
//
// This file is part of PyCXX. For details,see http://cxx.sourceforge.net/. The
// full copyright notice is contained in the file COPYRIGHT located at the root
// of the PyCXX distribution.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice,
// this list of conditions and the disclaimer below.
// - Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the disclaimer (as noted below) in the
// documentation and/or materials provided with the distribution.
// - Neither the name of the UC/LLNL nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OF THE UNIVERSITY OF
// CALIFORNIA, THE U.S. DEPARTMENT OF ENERGY OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
//
//-----------------------------------------------------------------------------
#ifndef __CXX_ExtensionTypeBase__h
#define __CXX_ExtensionTypeBase__h
namespace Py
{
// Class PythonExtension is what you inherit from to create
// a new Python extension type. You give your class itself
// as the template paramter.
// There are two ways that extension objects can get destroyed.
// 1. Their reference count goes to zero
// 2. Someone does an explicit delete on a pointer.
// In(1) the problem is to get the destructor called
// We register a special deallocator in the Python type object
// (see behaviors()) to do this.
// In(2) there is no problem, the dtor gets called.
// PythonExtension does not use the usual Python heap allocator,
// instead using new/delete. We do the setting of the type object
// and reference count, usually done by PyObject_New, in the
// base class ctor.
// This special deallocator does a delete on the pointer.
class PythonExtensionBase : public PyObject
{
public:
PythonExtensionBase();
virtual ~PythonExtensionBase();
public:
// object
virtual void reinit( Tuple &args, Dict &kwds );
// object basics
virtual int print( FILE *, int );
virtual Object getattr( const char * );
virtual int setattr( const char *, const Object & );
virtual Object getattro( const String & );
Object genericGetAttro( const String & );
virtual int setattro( const String &, const Object & );
int genericSetAttro( const String &, const Object & );
virtual int compare( const Object & );
virtual Object rich_compare( const Object &, int );
virtual Object repr();
virtual Object str();
virtual long hash();
virtual Object call( const Object &, const Object & );
virtual Object iter();
virtual PyObject *iternext();
// Sequence methods
virtual int sequence_length();
virtual Object sequence_concat( const Object & );
virtual Object sequence_repeat( Py_ssize_t );
virtual Object sequence_item( Py_ssize_t );
virtual Object sequence_slice( Py_ssize_t, Py_ssize_t );
virtual int sequence_ass_item( Py_ssize_t, const Object & );
virtual int sequence_ass_slice( Py_ssize_t, Py_ssize_t, const Object & );
// Mapping
virtual int mapping_length();
virtual Object mapping_subscript( const Object & );
virtual int mapping_ass_subscript( const Object &, const Object & );
// Number
virtual int number_nonzero();
virtual Object number_negative();
virtual Object number_positive();
virtual Object number_absolute();
virtual Object number_invert();
virtual Object number_int();
virtual Object number_float();
virtual Object number_long();
virtual Object number_oct();
virtual Object number_hex();
virtual Object number_add( const Object & );
virtual Object number_subtract( const Object & );
virtual Object number_multiply( const Object & );
virtual Object number_divide( const Object & );
virtual Object number_remainder( const Object & );
virtual Object number_divmod( const Object & );
virtual Object number_lshift( const Object & );
virtual Object number_rshift( const Object & );
virtual Object number_and( const Object & );
virtual Object number_xor( const Object & );
virtual Object number_or( const Object & );
virtual Object number_power( const Object &, const Object & );
// Buffer
virtual Py_ssize_t buffer_getreadbuffer( Py_ssize_t, void** );
virtual Py_ssize_t buffer_getwritebuffer( Py_ssize_t, void** );
virtual Py_ssize_t buffer_getsegcount( Py_ssize_t* );
public:
// helper functions to call function fn_name with 0 to 9 args
Object callOnSelf( const std::string &fn_name );
Object callOnSelf( const std::string &fn_name,
const Object &arg1 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3,
const Object &arg4 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3,
const Object &arg4, const Object &arg5 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3,
const Object &arg4, const Object &arg5, const Object &arg6 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3,
const Object &arg4, const Object &arg5, const Object &arg6,
const Object &arg7 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3,
const Object &arg4, const Object &arg5, const Object &arg6,
const Object &arg7, const Object &arg8 );
Object callOnSelf( const std::string &fn_name,
const Object &arg1, const Object &arg2, const Object &arg3,
const Object &arg4, const Object &arg5, const Object &arg6,
const Object &arg7, const Object &arg8, const Object &arg9 );
public:
virtual PyObject *selfPtr() = 0;
virtual Object self() = 0;
private:
void missing_method( void );
static PyObject *method_call_handler( PyObject *self, PyObject *args );
};
} // Namespace Py
// End of __CXX_ExtensionTypeBase__h
#endif