snarkvm_console_program/data/record/entry/
bytes.rs

1// Copyright 2024-2025 Aleo Network Foundation
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, Private: Visibility> FromBytes for Entry<N, Private> {
19    /// Reads the entry from a buffer.
20    fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
21        // Read the index.
22        let index = u8::read_le(&mut reader)?;
23        // Read the entry.
24        let entry = match index {
25            0 => Self::Constant(Plaintext::read_le(&mut reader)?),
26            1 => Self::Public(Plaintext::read_le(&mut reader)?),
27            2 => Self::Private(Private::read_le(&mut reader)?),
28            3.. => return Err(error(format!("Failed to decode entry variant {index}"))),
29        };
30        Ok(entry)
31    }
32}
33
34impl<N: Network, Private: Visibility> ToBytes for Entry<N, Private> {
35    /// Writes the entry to a buffer.
36    fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
37        match self {
38            Self::Constant(plaintext) => {
39                0u8.write_le(&mut writer)?;
40                plaintext.write_le(&mut writer)
41            }
42            Self::Public(plaintext) => {
43                1u8.write_le(&mut writer)?;
44                plaintext.write_le(&mut writer)
45            }
46            Self::Private(private) => {
47                2u8.write_le(&mut writer)?;
48                private.write_le(&mut writer)
49            }
50        }
51    }
52}