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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 "formula_tokens.hpp"
#include "formula_token.hpp"
#include "orcus/spreadsheet/document.hpp"
#include <ixion/formula_tokens.hpp>
#include <structmember.h>
namespace ss = orcus::spreadsheet;
namespace orcus { namespace python {
namespace {
/** non-python part. */
struct formula_tokens_data
{
const ss::document* doc;
ixion::abs_address_t origin;
const ixion::formula_tokens_t* tokens = nullptr;
ixion::formula_tokens_t::const_iterator pos;
ixion::formula_tokens_t::const_iterator end;
};
/** python object */
struct pyobj_formula_tokens
{
PyObject_HEAD
formula_tokens_data* data = nullptr;
};
inline pyobj_formula_tokens* t(PyObject* self)
{
return reinterpret_cast<pyobj_formula_tokens*>(self);
}
void init_members(
pyobj_formula_tokens* self, const ss::document& doc, const ixion::abs_address_t& origin, const ixion::formula_tokens_t& tokens)
{
assert(self->data);
self->data->doc = &doc;
self->data->origin = origin;
self->data->tokens = &tokens;
}
void tp_dealloc(pyobj_formula_tokens* self)
{
delete self->data;
Py_TYPE(self)->tp_free(reinterpret_cast<PyObject*>(self));
}
int tp_init(pyobj_formula_tokens* /*self*/, PyObject* /*args*/, PyObject* /*kwargs*/)
{
return 0;
}
PyObject* tp_new(PyTypeObject* type, PyObject* /*args*/, PyObject* /*kwargs*/)
{
pyobj_formula_tokens* self = t(type->tp_alloc(type, 0));
self->data = new formula_tokens_data;
return reinterpret_cast<PyObject*>(self);
}
PyObject* tp_iter(PyObject* self)
{
formula_tokens_data& data = *t(self)->data;
data.pos = data.tokens->cbegin();
data.end = data.tokens->cend();
Py_INCREF(self);
return self;
}
PyObject* tp_iternext(PyObject* self)
{
formula_tokens_data& data = *t(self)->data;
if (data.pos == data.end)
{
// No more elements. Stop the iteration.
PyErr_SetNone(PyExc_StopIteration);
return nullptr;
}
PyObject* ft_obj = create_formula_token_object(*data.doc, data.origin, *data.pos);
++data.pos;
return ft_obj;
}
Py_ssize_t sq_length(PyObject* self)
{
formula_tokens_data& data = *t(self)->data;
return data.tokens->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[] =
{
{ nullptr }
};
PyMemberDef tp_members[] =
{
{ nullptr }
};
PyTypeObject formula_tokens_type =
{
PyVarObject_HEAD_INIT(nullptr, 0)
"orcus.FormulaTokens", // tp_name
sizeof(pyobj_formula_tokens), // 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_formula_tokens_iterator_object(
const ss::document& doc, const ixion::abs_address_t& origin, const ixion::formula_tokens_t& tokens)
{
PyTypeObject* ft_type = get_formula_tokens_type();
if (!ft_type)
{
PyErr_SetString(PyExc_RuntimeError, "Failed to get the formula tokens type object.");
return nullptr;
}
PyObject* obj = ft_type->tp_new(ft_type, nullptr, nullptr);
if (!obj)
{
PyErr_SetString(PyExc_RuntimeError, "Failed to instantiate a formula tokens object.");
return nullptr;
}
init_members(t(obj), doc, origin, tokens);
return obj;
}
PyTypeObject* get_formula_tokens_type()
{
return &formula_tokens_type;
}
}}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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