snarkvm_console_types_group/
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<E: Environment> FromBytes for Group<E> {
19    /// Reads the group from a buffer.
20    #[inline]
21    fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
22        Self::from_x_coordinate(FromBytes::read_le(&mut reader)?).map_err(into_io_error)
23    }
24}
25
26impl<E: Environment> ToBytes for Group<E> {
27    /// Writes the group to a buffer.
28    #[inline]
29    fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
30        self.to_x_coordinate().write_le(&mut writer)
31    }
32}
33
34#[cfg(test)]
35mod tests {
36    use super::*;
37    use snarkvm_console_network_environment::Console;
38
39    type CurrentEnvironment = Console;
40
41    const ITERATIONS: u64 = 10_000;
42
43    #[test]
44    fn test_bytes() -> Result<()> {
45        let mut rng = TestRng::default();
46
47        for _ in 0..ITERATIONS {
48            // Sample a new group.
49            let expected = Group::<CurrentEnvironment>::new(Uniform::rand(&mut rng));
50
51            // Check the byte representation.
52            let expected_bytes = expected.to_bytes_le()?;
53            assert_eq!(expected, Group::read_le(&expected_bytes[..])?);
54            assert_eq!(expected, Group::read_le_unchecked(&expected_bytes[..])?);
55            assert!(Group::<CurrentEnvironment>::read_le(&expected_bytes[1..]).is_err());
56            assert!(Group::<CurrentEnvironment>::read_le_unchecked(&expected_bytes[1..]).is_err());
57        }
58        Ok(())
59    }
60}
snarkvm_console_types_group/bytes.rs

snarkvm_console_types_group/
bytes.rs
