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// Copyright (C) 2019-2022 Aleo Systems Inc.
// This file is part of the snarkVM library.

// The snarkVM library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// The snarkVM library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with the snarkVM library. If not, see <https://www.gnu.org/licenses/>.

use super::*;

impl<E: Environment, const NUM_BITS: u8> Hash for Pedersen<E, NUM_BITS> {
    type Input = bool;
    type Output = Field<E>;

    /// Returns the Pedersen hash of the given input as a field element.
    fn hash(&self, input: &[Self::Input]) -> Result<Self::Output> {
        // Compute the Pedersen hash as an affine group element, and return the x-coordinate.
        Ok(self.hash_uncompressed(input)?.to_x_coordinate())
    }
}