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use crate::{bits::Boolean, integers::uint::UInt8, traits::integers::Integer};
use snarkvm_fields::Field;
use snarkvm_r1cs::{errors::SynthesisError, ConstraintSystem};
pub trait ToBitsBEGadget<F: Field> {
fn to_bits_be<CS: ConstraintSystem<F>>(&self, cs: CS) -> Result<Vec<Boolean>, SynthesisError>;
fn to_bits_be_strict<CS: ConstraintSystem<F>>(&self, cs: CS) -> Result<Vec<Boolean>, SynthesisError>;
}
impl<F: Field> ToBitsBEGadget<F> for Boolean {
fn to_bits_be<CS: ConstraintSystem<F>>(&self, _: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(vec![*self])
}
fn to_bits_be_strict<CS: ConstraintSystem<F>>(&self, _: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(vec![*self])
}
}
impl<F: Field> ToBitsBEGadget<F> for [Boolean] {
fn to_bits_be<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.to_vec())
}
fn to_bits_be_strict<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.to_vec())
}
}
impl<F: Field> ToBitsBEGadget<F> for Vec<Boolean> {
fn to_bits_be<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.clone())
}
fn to_bits_be_strict<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.clone())
}
}
pub trait ToBitsLEGadget<F: Field> {
fn to_bits_le<CS: ConstraintSystem<F>>(&self, cs: CS) -> Result<Vec<Boolean>, SynthesisError>;
fn to_bits_le_strict<CS: ConstraintSystem<F>>(&self, cs: CS) -> Result<Vec<Boolean>, SynthesisError>;
}
impl<F: Field> ToBitsLEGadget<F> for Boolean {
fn to_bits_le<CS: ConstraintSystem<F>>(&self, _: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(vec![*self])
}
fn to_bits_le_strict<CS: ConstraintSystem<F>>(&self, _: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(vec![*self])
}
}
impl<F: Field> ToBitsLEGadget<F> for [Boolean] {
fn to_bits_le<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.to_vec())
}
fn to_bits_le_strict<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.to_vec())
}
}
impl<F: Field> ToBitsLEGadget<F> for Vec<Boolean> {
fn to_bits_le<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.clone())
}
fn to_bits_le_strict<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
Ok(self.clone())
}
}
impl<F: Field> ToBitsLEGadget<F> for [UInt8] {
fn to_bits_le<CS: ConstraintSystem<F>>(&self, _cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
let mut result = Vec::with_capacity(&self.len() * 8);
for byte in self {
result.extend_from_slice(&byte.to_bits_le());
}
Ok(result)
}
fn to_bits_le_strict<CS: ConstraintSystem<F>>(&self, cs: CS) -> Result<Vec<Boolean>, SynthesisError> {
self.to_bits_le(cs)
}
}