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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.
*/
#ifndef __FN_MULTI_FUNCTION_DATA_TYPE_HH__
#define __FN_MULTI_FUNCTION_DATA_TYPE_HH__
/** \file
* \ingroup fn
*
* A MFDataType describes what type of data a multi-function gets as input, outputs or mutates.
* Currently, only individual elements or vectors of elements are supported. Adding more data types
* is possible when necessary.
*/
#include "FN_cpp_type.hh"
namespace blender::fn {
class MFDataType {
public:
enum Category {
Single,
Vector,
};
private:
Category category_;
const CPPType *type_;
MFDataType(Category category, const CPPType &type) : category_(category), type_(&type)
{
}
public:
MFDataType() = default;
static MFDataType ForSingle(const CPPType &type)
{
return MFDataType(Single, type);
}
static MFDataType ForVector(const CPPType &type)
{
return MFDataType(Vector, type);
}
template<typename T> static MFDataType ForSingle()
{
return MFDataType::ForSingle(CPPType::get<T>());
}
template<typename T> static MFDataType ForVector()
{
return MFDataType::ForVector(CPPType::get<T>());
}
bool is_single() const
{
return category_ == Single;
}
bool is_vector() const
{
return category_ == Vector;
}
Category category() const
{
return category_;
}
const CPPType &single_type() const
{
BLI_assert(this->is_single());
return *type_;
}
const CPPType &vector_base_type() const
{
BLI_assert(this->is_vector());
return *type_;
}
friend bool operator==(const MFDataType &a, const MFDataType &b);
friend bool operator!=(const MFDataType &a, const MFDataType &b);
std::string to_string() const
{
switch (category_) {
case Single:
return type_->name();
case Vector:
return type_->name() + " Vector";
}
BLI_assert(false);
return "";
}
uint64_t hash() const
{
return DefaultHash<CPPType>{}(*type_) + (uint64_t)category_;
}
};
inline bool operator==(const MFDataType &a, const MFDataType &b)
{
return a.category_ == b.category_ && a.type_ == b.type_;
}
inline bool operator!=(const MFDataType &a, const MFDataType &b)
{
return !(a == b);
}
} // namespace blender::fn
#endif /* __FN_MULTI_FUNCTION_DATA_TYPE_HH__ */
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