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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
#include "FN_field.hh"
#include "FN_multi_function.hh"
namespace blender::bke {
struct ConversionFunctions {
const fn::MultiFunction *multi_function;
void (*convert_single_to_initialized)(const void *src, void *dst);
void (*convert_single_to_uninitialized)(const void *src, void *dst);
};
class DataTypeConversions {
private:
Map<std::pair<fn::MFDataType, fn::MFDataType>, ConversionFunctions> conversions_;
public:
void add(fn::MFDataType from_type,
fn::MFDataType to_type,
const fn::MultiFunction &fn,
void (*convert_single_to_initialized)(const void *src, void *dst),
void (*convert_single_to_uninitialized)(const void *src, void *dst))
{
conversions_.add_new({from_type, to_type},
{&fn, convert_single_to_initialized, convert_single_to_uninitialized});
}
const ConversionFunctions *get_conversion_functions(fn::MFDataType from, fn::MFDataType to) const
{
return conversions_.lookup_ptr({from, to});
}
const ConversionFunctions *get_conversion_functions(const CPPType &from, const CPPType &to) const
{
return this->get_conversion_functions(fn::MFDataType::ForSingle(from),
fn::MFDataType::ForSingle(to));
}
const fn::MultiFunction *get_conversion_multi_function(fn::MFDataType from,
fn::MFDataType to) const
{
const ConversionFunctions *functions = this->get_conversion_functions(from, to);
return functions ? functions->multi_function : nullptr;
}
bool is_convertible(const CPPType &from_type, const CPPType &to_type) const
{
return conversions_.contains(
{fn::MFDataType::ForSingle(from_type), fn::MFDataType::ForSingle(to_type)});
}
void convert_to_uninitialized(const CPPType &from_type,
const CPPType &to_type,
const void *from_value,
void *to_value) const;
void convert_to_initialized_n(GSpan from_span, GMutableSpan to_span) const;
GVArray try_convert(GVArray varray, const CPPType &to_type) const;
GVMutableArray try_convert(GVMutableArray varray, const CPPType &to_type) const;
fn::GField try_convert(fn::GField field, const CPPType &to_type) const;
};
const DataTypeConversions &get_implicit_type_conversions();
} // namespace blender::bke
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