use blstrs::Scalar as Fr;
use filecoin_hashers::{POSEIDON_CONSTANTS_11, POSEIDON_CONSTANTS_2};
use neptune::poseidon::Poseidon;
/// Hash all elements in the given column.
pub fn hash_single_column(column: &[Fr]) -> Fr {
match column.len() {
2 => {
let mut hasher = Poseidon::new_with_preimage(column, &*POSEIDON_CONSTANTS_2);
hasher.hash()
}
11 => {
let mut hasher = Poseidon::new_with_preimage(column, &*POSEIDON_CONSTANTS_11);
hasher.hash()
}
_ => panic!("unsupported column size: {}", column.len()),
}
}