snarkvm_ledger_puzzle/solution/
string.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> FromStr for Solution<N> {
19    type Err = Error;
20
21    /// Initializes the solution from a JSON-string.
22    fn from_str(solution: &str) -> Result<Self, Self::Err> {
23        Ok(serde_json::from_str(solution)?)
24    }
25}
26
27impl<N: Network> Debug for Solution<N> {
28    /// Prints the solution as a JSON-string.
29    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
30        Display::fmt(self, f)
31    }
32}
33
34impl<N: Network> Display for Solution<N> {
35    /// Displays the solution as a JSON-string.
36    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
37        write!(f, "{}", serde_json::to_string(self).map_err::<fmt::Error, _>(ser::Error::custom)?)
38    }
39}
40
41#[cfg(test)]
42mod tests {
43    use super::*;
44    use console::{account::PrivateKey, network::MainnetV0};
45
46    type CurrentNetwork = MainnetV0;
47
48    #[test]
49    fn test_string() -> Result<()> {
50        let mut rng = TestRng::default();
51        let private_key = PrivateKey::<CurrentNetwork>::new(&mut rng)?;
52        let address = Address::try_from(private_key)?;
53
54        // Sample a new solution.
55        let partial_solution = PartialSolution::new(rng.r#gen(), address, u64::rand(&mut rng)).unwrap();
56        let target = u64::rand(&mut rng);
57        let expected = Solution::new(partial_solution, target);
58
59        // Check the string representation.
60        let candidate = expected.to_string();
61        assert_eq!(expected, Solution::from_str(&candidate)?);
62
63        Ok(())
64    }
65}
snarkvm_ledger_puzzle/solution/string.rs

snarkvm_ledger_puzzle/solution/
string.rs
