INNER CODE UNIT · Rust

from_iter

risc0/risc0-ethereum · crates/aggregation/src/lib.rs:361

    fn from_iter<T: IntoIterator<Item = D>>(values: T) -> Self {
        let mut mmr = Self::empty();
        mmr.extend(values);
        mmr
    }
}

/// Calculate the Merkle root for a tree with the given list of digests as leaves.
///
/// Panics if the given list of leaves is empty.
pub fn merkle_root(leaves: &[Digest]) -> Digest {
    match leaves {
        [] => panic!("digest list is empty, cannot compute Merkle root"),
        _ => MerkleMountainRange::from_iter(leaves)
            .finalized_root()
            .unwrap(),
    }
}

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