1  // Copyright (c) 2019-2025 Alpha-Delta Network Inc.
 2  // This file is part of the deltavm 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  
16  use super::*;
17  
18  impl<N: Network> FromBytes for Input<N> {
19      /// Reads the input from a buffer.
20      fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
21          let register = FromBytes::read_le(&mut reader)?;
22          let value_type = FromBytes::read_le(&mut reader)?;
23  
24          // Ensure the register is not a register member.
25          match matches!(register, Register::Locator(..)) {
26              true => Ok(Self { register, value_type }),
27              false => Err(error(format!("Input '{register}' cannot be a register member"))),
28          }
29      }
30  }
31  
32  impl<N: Network> ToBytes for Input<N> {
33      /// Writes the input to a buffer.
34      fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
35          // Ensure the register is not a register member.
36          if !matches!(self.register, Register::Locator(..)) {
37              return Err(error(format!("Input '{}' cannot be a register member", self.register)));
38          }
39          self.register.write_le(&mut writer)?;
40          self.value_type.write_le(&mut writer)
41      }
42  }