snarkvm_ledger_block/transactions/rejected/
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 Rejected<N> {
19    /// Reads the rejected transaction from a buffer.
20    fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
21        let variant = u8::read_le(&mut reader)?;
22        match variant {
23            0 => {
24                // Read the program owner.
25                let program_owner = ProgramOwner::read_le(&mut reader)?;
26                // Read the deployment.
27                let deployment = Deployment::read_le(&mut reader)?;
28                // Return the rejected deployment.
29                Ok(Self::new_deployment(program_owner, deployment))
30            }
31            1 => {
32                // Read the execution.
33                let execution = Execution::read_le(&mut reader)?;
34                // Return the rejected execution.
35                Ok(Self::new_execution(execution))
36            }
37            2.. => Err(error(format!("Failed to decode rejected transaction variant {variant}"))),
38        }
39    }
40}
41
42impl<N: Network> ToBytes for Rejected<N> {
43    /// Writes the rejected transaction to a buffer.
44    fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
45        match self {
46            Self::Deployment(program_owner, deployment) => {
47                // Write the variant.
48                0u8.write_le(&mut writer)?;
49                // Write the program owner.
50                program_owner.write_le(&mut writer)?;
51                // Write the deployment.
52                deployment.write_le(&mut writer)
53            }
54            Self::Execution(execution) => {
55                // Write the variant.
56                1u8.write_le(&mut writer)?;
57                // Write the execution.
58                execution.write_le(&mut writer)
59            }
60        }
61    }
62}
63
64#[cfg(test)]
65mod tests {
66    use super::*;
67
68    #[test]
69    fn test_bytes() {
70        for expected in crate::transactions::rejected::test_helpers::sample_rejected_transactions() {
71            // Check the byte representation.
72            let expected_bytes = expected.to_bytes_le().unwrap();
73            assert_eq!(expected, Rejected::read_le(&expected_bytes[..]).unwrap());
74        }
75    }
76}
snarkvm_ledger_block/transactions/rejected/bytes.rs

snarkvm_ledger_block/transactions/rejected/
bytes.rs
