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|
/*-----------------------------------------------------------------------------
| Copyright (c) 2013-2019, Nucleic Development Team.
|
| Distributed under the terms of the Modified BSD License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/
#include <cppy/cppy.h>
#include <kiwi/kiwi.h>
#include "symbolics.h"
#include "types.h"
#include "util.h"
namespace kiwisolver
{
namespace
{
PyObject*
Variable_new( PyTypeObject* type, PyObject* args, PyObject* kwargs )
{
static const char *kwlist[] = { "name", "context", 0 };
PyObject* context = 0;
PyObject* name = 0;
if( !PyArg_ParseTupleAndKeywords(
args, kwargs, "|OO:__new__", const_cast<char**>( kwlist ),
&name, &context ) )
return 0;
cppy::ptr pyvar( PyType_GenericNew( type, args, kwargs ) );
if( !pyvar )
return 0;
Variable* self = reinterpret_cast<Variable*>( pyvar.get() );
self->context = cppy::xincref( context );
if( name != 0 )
{
if( !PyUnicode_Check( name ) )
return cppy::type_error( name, "str" );
std::string c_name;
if( !convert_pystr_to_str(name, c_name) )
return 0; // LCOV_EXCL_LINE
new( &self->variable ) kiwi::Variable( c_name );
}
else
{
new( &self->variable ) kiwi::Variable();
}
return pyvar.release();
}
void
Variable_clear( Variable* self )
{
Py_CLEAR( self->context );
}
int
Variable_traverse( Variable* self, visitproc visit, void* arg )
{
Py_VISIT( self->context );
#if PY_VERSION_HEX >= 0x03090000
// This was not needed before Python 3.9 (Python issue 35810 and 40217)
Py_VISIT(Py_TYPE(self));
#endif
return 0;
}
void
Variable_dealloc( Variable* self )
{
PyObject_GC_UnTrack( self );
Variable_clear( self );
self->variable.~Variable();
Py_TYPE( self )->tp_free( pyobject_cast( self ) );
}
PyObject*
Variable_repr( Variable* self )
{
return PyUnicode_FromString( self->variable.name().c_str() );
}
PyObject*
Variable_name( Variable* self )
{
return PyUnicode_FromString( self->variable.name().c_str() );
}
PyObject*
Variable_setName( Variable* self, PyObject* pystr )
{
if( !PyUnicode_Check( pystr ) )
return cppy::type_error( pystr, "str" );
std::string str;
if( !convert_pystr_to_str( pystr, str ) )
return 0;
self->variable.setName( str );
Py_RETURN_NONE;
}
PyObject*
Variable_context( Variable* self )
{
if( self->context )
return cppy::incref( self->context );
Py_RETURN_NONE;
}
PyObject*
Variable_setContext( Variable* self, PyObject* value )
{
if( value != self->context )
{
PyObject* temp = self->context;
self->context = cppy::incref( value );
Py_XDECREF( temp );
}
Py_RETURN_NONE;
}
PyObject*
Variable_value( Variable* self )
{
return PyFloat_FromDouble( self->variable.value() );
}
PyObject*
Variable_add( PyObject* first, PyObject* second )
{
return BinaryInvoke<BinaryAdd, Variable>()( first, second );
}
PyObject*
Variable_sub( PyObject* first, PyObject* second )
{
return BinaryInvoke<BinarySub, Variable>()( first, second );
}
PyObject*
Variable_mul( PyObject* first, PyObject* second )
{
return BinaryInvoke<BinaryMul, Variable>()( first, second );
}
PyObject*
Variable_div( PyObject* first, PyObject* second )
{
return BinaryInvoke<BinaryDiv, Variable>()( first, second );
}
PyObject*
Variable_neg( PyObject* value )
{
return UnaryInvoke<UnaryNeg, Variable>()( value );
}
PyObject*
Variable_richcmp( PyObject* first, PyObject* second, int op )
{
switch( op )
{
case Py_EQ:
return BinaryInvoke<CmpEQ, Variable>()( first, second );
case Py_LE:
return BinaryInvoke<CmpLE, Variable>()( first, second );
case Py_GE:
return BinaryInvoke<CmpGE, Variable>()( first, second );
default:
break;
}
PyErr_Format(
PyExc_TypeError,
"unsupported operand type(s) for %s: "
"'%.100s' and '%.100s'",
pyop_str( op ),
Py_TYPE( first )->tp_name,
Py_TYPE( second )->tp_name
);
return 0;
}
static PyMethodDef
Variable_methods[] = {
{ "name", ( PyCFunction )Variable_name, METH_NOARGS,
"Get the name of the variable." },
{ "setName", ( PyCFunction )Variable_setName, METH_O,
"Set the name of the variable." },
{ "context", ( PyCFunction )Variable_context, METH_NOARGS,
"Get the context object associated with the variable." },
{ "setContext", ( PyCFunction )Variable_setContext, METH_O,
"Set the context object associated with the variable." },
{ "value", ( PyCFunction )Variable_value, METH_NOARGS,
"Get the current value of the variable." },
{ 0 } // sentinel
};
static PyType_Slot Variable_Type_slots[] = {
{ Py_tp_dealloc, void_cast( Variable_dealloc ) }, /* tp_dealloc */
{ Py_tp_traverse, void_cast( Variable_traverse ) }, /* tp_traverse */
{ Py_tp_clear, void_cast( Variable_clear ) }, /* tp_clear */
{ Py_tp_repr, void_cast( Variable_repr ) }, /* tp_repr */
{ Py_tp_richcompare, void_cast( Variable_richcmp ) }, /* tp_richcompare */
{ Py_tp_methods, void_cast( Variable_methods ) }, /* tp_methods */
{ Py_tp_new, void_cast( Variable_new ) }, /* tp_new */
{ Py_tp_alloc, void_cast( PyType_GenericAlloc ) }, /* tp_alloc */
{ Py_tp_free, void_cast( PyObject_GC_Del ) }, /* tp_free */
{ Py_nb_add, void_cast( Variable_add ) }, /* nb_add */
{ Py_nb_subtract, void_cast( Variable_sub ) }, /* nb_subtract */
{ Py_nb_multiply, void_cast( Variable_mul ) }, /* nb_multiply */
{ Py_nb_negative, void_cast( Variable_neg ) }, /* nb_negative */
{ Py_nb_true_divide, void_cast( Variable_div ) }, /* nb_true_divide */
{ 0, 0 },
};
} // namespace
// Initialize static variables (otherwise the compiler eliminates them)
PyTypeObject* Variable::TypeObject = NULL;
PyType_Spec Variable::TypeObject_Spec = {
"kiwisolver.Variable", /* tp_name */
sizeof( Variable ), /* tp_basicsize */
0, /* tp_itemsize */
Py_TPFLAGS_DEFAULT|
Py_TPFLAGS_HAVE_GC|
Py_TPFLAGS_BASETYPE, /* tp_flags */
Variable_Type_slots /* slots */
};
bool Variable::Ready()
{
// The reference will be handled by the module to which we will add the type
TypeObject = pytype_cast( PyType_FromSpec( &TypeObject_Spec ) );
if( !TypeObject )
{
return false;
}
return true;
}
} // namespace kiwisolver
|
