INNER CODE UNIT · Rust

finalize

risc0/risc0-ethereum · crates/aggregation/src/lib.rs:247

    pub fn finalize(&mut self) -> Result<(), Error> {
        let root = self.0.iter().rev().fold(None, |root, peak| {
            Some(match root {
                Some(root) => commutative_keccak256(&root, &peak.digest),
                None => peak.digest,
            })
        });
        let Some(root) = root else {
            return Err(Error::EmptyError);
        };
        self.0.clear();
        self.0.push(Peak {
            digest: root,
            max_depth: u8::MAX,
        });
        Ok(())
    }

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