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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "named_expressions.hpp"
#include "named_expression.hpp"
#include "global.hpp"
#include "orcus/spreadsheet/document.hpp"
#include <ixion/formula.hpp>
#include <ixion/model_context.hpp>
#include <ixion/named_expressions_iterator.hpp>
#include <ixion/formula_name_resolver.hpp>
#include <structmember.h>
namespace ss = orcus::spreadsheet;
namespace orcus { namespace python {
namespace {
/** non-python part. */
struct named_exps_data
{
ss::sheet_t origin_sheet = -1; // -1 for global, >=0 for sheet local.
const ss::document* doc = nullptr;
ixion::named_expressions_iterator src; // original iterator to copy from.
ixion::named_expressions_iterator iter;
};
/** python object. */
struct pyobj_named_exps
{
PyObject_HEAD
named_exps_data* data;
};
inline pyobj_named_exps* t(PyObject* self)
{
return reinterpret_cast<pyobj_named_exps*>(self);
}
PyObject* named_exps_names(PyObject* self, PyObject* /*args*/, PyObject* /*kwargs*/)
{
named_exps_data& data = *t(self)->data;
PyObject* s = PySet_New(nullptr);
for (auto iter = data.src; iter.has(); iter.next())
{
const std::string* name = iter.get().name;
PySet_Add(s, PyUnicode_FromStringAndSize(name->data(), name->size()));
}
return s;
}
void tp_dealloc(pyobj_named_exps* self)
{
delete self->data;
Py_TYPE(self)->tp_free(reinterpret_cast<PyObject*>(self));
}
int tp_init(pyobj_named_exps* /*self*/, PyObject* /*args*/, PyObject* /*kwargs*/)
{
return 0;
}
PyObject* tp_new(PyTypeObject* type, PyObject* /*args*/, PyObject* /*kwargs*/)
{
pyobj_named_exps* self = t(type->tp_alloc(type, 0));
self->data = new named_exps_data;
return reinterpret_cast<PyObject*>(self);
}
PyObject* tp_iter(PyObject* self)
{
named_exps_data& data = *t(self)->data;
data.iter = data.src;
Py_INCREF(self);
return self;
}
PyObject* tp_iternext(PyObject* self)
{
named_exps_data& data = *t(self)->data;
auto& iter = data.iter;
if (!iter.has())
{
PyErr_SetNone(PyExc_StopIteration);
return nullptr;
}
ixion::named_expressions_iterator::named_expression item = iter.get();
iter.next();
PyObject* name = PyUnicode_FromStringAndSize(item.name->data(), item.name->size());
if (!name)
return nullptr;
PyObject* ne = create_named_exp_object(*data.doc, item.expression);
if (!ne)
return nullptr;
PyObject* tup = PyTuple_New(2);
PyTuple_SET_ITEM(tup, 0, name);
PyTuple_SET_ITEM(tup, 1, ne);
return tup;
}
Py_ssize_t sq_length(PyObject* self)
{
named_exps_data& data = *t(self)->data;
return data.src.size();
}
PySequenceMethods tp_as_sequence =
{
sq_length, // lenfunc sq_length
0, // binaryfunc sq_concat
0, // ssizeargfunc sq_repeat
0, // ssizeargfunc sq_item
0, // void *was_sq_slice
0, // ssizeobjargproc sq_ass_item
0, // void *was_sq_ass_slice
0, // objobjproc sq_contains
0, // binaryfunc sq_inplace_concat
0, // ssizeargfunc sq_inplace_repeat
};
PyMethodDef tp_methods[] =
{
{ "names", (PyCFunction)named_exps_names, METH_NOARGS, "Get names for all named expressions stored." },
{ nullptr }
};
PyMemberDef tp_members[] =
{
{ nullptr }
};
PyTypeObject named_exps_type =
{
PyVarObject_HEAD_INIT(nullptr, 0)
"orcus.NamedExpressions", // tp_name
sizeof(pyobj_named_exps), // tp_basicsize
0, // tp_itemsize
(destructor)tp_dealloc, // tp_dealloc
0, // tp_print
0, // tp_getattr
0, // tp_setattr
0, // tp_compare
0, // tp_repr
0, // tp_as_number
&tp_as_sequence, // tp_as_sequence
0, // tp_as_mapping
0, // tp_hash
0, // tp_call
0, // tp_str
0, // tp_getattro
0, // tp_setattro
0, // tp_as_buffer
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, // tp_flags
"orcus spreadsheet formula tokens", // tp_doc
0, // tp_traverse
0, // tp_clear
0, // tp_richcompare
0, // tp_weaklistoffset
tp_iter, // tp_iter
tp_iternext, // tp_iternext
tp_methods, // tp_methods
tp_members, // tp_members
0, // tp_getset
0, // tp_base
0, // tp_dict
0, // tp_descr_get
0, // tp_descr_set
0, // tp_dictoffset
(initproc)tp_init, // tp_init
0, // tp_alloc
tp_new, // tp_new
};
} // anonymous namespace
PyObject* create_named_expressions_object(
spreadsheet::sheet_t origin_sheet, const spreadsheet::document& doc, ixion::named_expressions_iterator iter)
{
PyTypeObject* type = get_named_exps_type();
PyObject* obj = create_object_from_type(type);
if (!obj)
return nullptr;
type->tp_init(obj, nullptr, nullptr);
named_exps_data& data = *t(obj)->data;
data.src = iter;
data.origin_sheet = origin_sheet;
data.doc = &doc;
return obj;
}
PyTypeObject* get_named_exps_type()
{
return &named_exps_type;
}
}}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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