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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
/** \file
* \ingroup fn
*/
#include "FN_cpp_type_make.hh"
#include "FN_field.hh"
namespace blender::fn {
template<typename T> struct FieldCPPTypeParam {
};
class FieldCPPType : public CPPType {
private:
const CPPType &field_type_;
public:
template<typename T>
FieldCPPType(FieldCPPTypeParam<Field<T>> /* unused */, StringRef debug_name)
: CPPType(CPPTypeParam<Field<T>, CPPTypeFlags::None>(), debug_name),
field_type_(CPPType::get<T>())
{
}
const CPPType &field_type() const
{
return field_type_;
}
/* Ensure that #GField and #Field<T> have the same layout, to enable casting between the two. */
static_assert(sizeof(Field<int>) == sizeof(GField));
static_assert(sizeof(Field<int>) == sizeof(Field<std::string>));
const GField &get_gfield(const void *field) const
{
return *(const GField *)field;
}
void construct_from_gfield(void *r_value, const GField &gfield) const
{
new (r_value) GField(gfield);
}
};
} // namespace blender::fn
#define MAKE_FIELD_CPP_TYPE(DEBUG_NAME, FIELD_TYPE) \
template<> \
const blender::fn::CPPType &blender::fn::CPPType::get_impl<blender::fn::Field<FIELD_TYPE>>() \
{ \
static blender::fn::FieldCPPType cpp_type{ \
blender::fn::FieldCPPTypeParam<blender::fn::Field<FIELD_TYPE>>(), STRINGIFY(DEBUG_NAME)}; \
return cpp_type; \
}
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