#[cfg(feature = "epcsaft")]

use crate::epcsaft::ElectrolytePcSaft;

#[cfg(feature = "gc_pcsaft")]

use crate::gc_pcsaft::GcPcSaft;

#[cfg(feature = "pcsaft")]

use crate::pcsaft::PcSaft;

#[cfg(feature = "pets")]

use crate::pets::Pets;

#[cfg(feature = "saftvrmie")]

use crate::saftvrmie::SaftVRMie;

#[cfg(feature = "saftvrqmie")]

use crate::saftvrqmie::SaftVRQMie;

#[cfg(feature = "uvtheory")]

use crate::uvtheory::UVTheory;

use feos_core::cubic::PengRobinson;

#[cfg(feature = "python")]

use feos_core::python::user_defined::PyResidual;

use feos_core::si::*;

use feos_core::*;

use feos_derive::{Components, Residual};

use ndarray::{Array1, ScalarOperand};

use num_dual::DualNum;

/// Collection of different [Residual] implementations.

///

/// Particularly relevant for situations in which generic types

/// are undesirable (e.g. FFI).

#[derive(Components, Residual)]

#[allow(clippy::large_enum_variant)]

pub enum ResidualModel {

NoResidual(NoResidual),

#[cfg(feature = "pcsaft")]

#[implement(entropy_scaling)]

PcSaft(PcSaft),

#[cfg(feature = "epcsaft")]

ElectrolytePcSaft(ElectrolytePcSaft),

#[cfg(feature = "gc_pcsaft")]

GcPcSaft(GcPcSaft),

PengRobinson(PengRobinson),

#[cfg(feature = "python")]

Python(PyResidual),

#[cfg(feature = "saftvrqmie")]

#[implement(entropy_scaling)]

SaftVRQMie(SaftVRQMie),

#[cfg(feature = "saftvrmie")]

SaftVRMie(SaftVRMie),

#[cfg(feature = "pets")]

Pets(Pets),

#[cfg(feature = "uvtheory")]

UVTheory(UVTheory),

}