snarkvm_ledger_puzzle/solution/
bytes.rs

1// Copyright (c) 2019-2025 Provable Inc.
2// This file is part of the snarkVM library.
3
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at:
7
8// http://www.apache.org/licenses/LICENSE-2.0
9
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15
16use super::*;
17
18impl<N: Network> FromBytes for Solution<N> {
19    /// Reads the solution from the buffer.
20    fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
21        let partial_solution = PartialSolution::read_le(&mut reader)?;
22        let target = u64::read_le(&mut reader)?;
23
24        Ok(Self::new(partial_solution, target))
25    }
26}
27
28impl<N: Network> ToBytes for Solution<N> {
29    /// Writes the solution to the buffer.
30    fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
31        self.partial_solution.write_le(&mut writer)?;
32        self.target.write_le(&mut writer)
33    }
34}
35
36#[cfg(test)]
37mod tests {
38    use super::*;
39    use console::{account::PrivateKey, network::MainnetV0};
40
41    type CurrentNetwork = MainnetV0;
42
43    #[test]
44    fn test_bytes() -> Result<()> {
45        let mut rng = TestRng::default();
46        let private_key = PrivateKey::<CurrentNetwork>::new(&mut rng)?;
47        let address = Address::try_from(private_key)?;
48
49        // Sample a new solution.
50        let partial_solution = PartialSolution::new(rng.r#gen(), address, u64::rand(&mut rng)).unwrap();
51        let target = u64::rand(&mut rng);
52        let expected = Solution::new(partial_solution, target);
53
54        // Check the byte representation.
55        let expected_bytes = expected.to_bytes_le()?;
56        assert_eq!(expected, Solution::read_le(&expected_bytes[..])?);
57        assert!(Solution::<CurrentNetwork>::read_le(&expected_bytes[1..]).is_err());
58
59        Ok(())
60    }
61}
snarkvm_ledger_puzzle/solution/bytes.rs

snarkvm_ledger_puzzle/solution/
bytes.rs
