1use crate::fields::{cubic_extension::*, fp::FpVar};
 2use ark_ff::{
 3    fields::{CubicExtConfig, Fp3ConfigWrapper},
 4    Fp3Config,
 5};
 6
 7/// A cubic extension field constructed over a prime field.
 8/// This is the R1CS equivalent of `ark_ff::Fp3<P>`.
 9pub type Fp3Var<P> = CubicExtVar<FpVar<<P as Fp3Config>::Fp>, Fp3ConfigWrapper<P>>;
10
11impl<P: Fp3Config> CubicExtVarConfig<FpVar<P::Fp>> for Fp3ConfigWrapper<P> {
12    fn mul_base_field_vars_by_frob_coeff(
13        c1: &mut FpVar<P::Fp>,
14        c2: &mut FpVar<P::Fp>,
15        power: usize,
16    ) {
17        *c1 *= Self::FROBENIUS_COEFF_C1[power % Self::DEGREE_OVER_BASE_PRIME_FIELD];
18        *c2 *= Self::FROBENIUS_COEFF_C2[power % Self::DEGREE_OVER_BASE_PRIME_FIELD];
19    }
20}