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/*
pybind11/extensions.h: Extensions to the C++11 python binding
generator library for dune-fempy
Copyright (c) 2016 Andreas Dedner <a.s.dedner@warwick.ac.uk>
Copyright (c) 2016 Martin Nolte <nolte@mathematik.uni-freiburg.de>
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/
#pragma once
#include <stdexcept>
#include <type_traits>
#include <utility>
#include "pybind11.h"
#include "numpy.h"
PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)
template <class T>
inline bool already_registered() {
return static_cast<bool>(detail::get_type_info(typeid(T)));
}
template <class F>
inline void handle_buffer_format(const pybind11::buffer_info &info, F &&f) {
if(info.format.size() > 2)
throw std::runtime_error("Buffer format '" + info.format + "' not supported.");
char format = info.format[0];
if(format == '=' || format == '<')
format = info.format[1];
switch(format) {
case 'h':
return f(format_descriptor<short>());
case 'H':
return f(format_descriptor<unsigned short>());
case 'i':
return f(format_descriptor<int>());
case 'I':
return f(format_descriptor<unsigned int>());
case 'l':
return f(format_descriptor<long>());
case 'L':
return f(format_descriptor<unsigned long>());
case 'q':
return f(format_descriptor<long long>());
case 'Q':
return f(format_descriptor<unsigned long long>());
case 'f':
return f(format_descriptor<float>());
case 'd':
return f(format_descriptor<double>());
default:
throw std::runtime_error("Buffer format '" + info.format + "' not supported.");
}
}
template <class T>
inline void implicitly_convert_facades() {
auto implicit_caster = [](PyObject *obj, PyTypeObject *type) -> PyObject * {
return getattr(obj, "__impl__", nullptr).release().ptr();
};
if(auto tinfo = detail::get_type_info(typeid(T)))
tinfo->implicit_conversions.push_back(implicit_caster);
else
pybind11_fail("impplicitly_convert_facades: Unable to find type " + type_id<T>());
}
PYBIND11_NAMESPACE_END(PYBIND11_NAMESPACE)
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