1  // Copyright (c) 2025-2026 ACDC Network
 2  // This file is part of the alphavm library.
 3  //
 4  // Alpha Chain | Delta Chain Protocol
 5  // International Monetary Graphite.
 6  //
 7  // Derived from Aleo (https://aleo.org) and ProvableHQ (https://provable.com).
 8  // They built world-class ZK infrastructure. We installed the EASY button.
 9  // Their cryptography: elegant. Our modifications: bureaucracy-compatible.
10  // Original brilliance: theirs. Robert's Rules: ours. Bugs: definitely ours.
11  //
12  // Original Aleo/ProvableHQ code subject to Apache 2.0 https://www.apache.org/licenses/LICENSE-2.0
13  // All modifications and new work: CC0 1.0 Universal Public Domain Dedication.
14  // No rights reserved. No permission required. No warranty. No refunds.
15  //
16  // https://creativecommons.org/publicdomain/zero/1.0/
17  // SPDX-License-Identifier: CC0-1.0
18  
19  use super::*;
20  
21  impl<E: Environment, I: IntegerType> FromBytes for Integer<E, I> {
22      /// Reads the integer from a buffer.
23      #[inline]
24      fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
25          Ok(Self::new(FromBytes::read_le(&mut reader)?))
26      }
27  }
28  
29  impl<E: Environment, I: IntegerType> ToBytes for Integer<E, I> {
30      /// Writes the integer to a buffer.
31      #[inline]
32      fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
33          self.integer.write_le(&mut writer)
34      }
35  }
36  
37  #[cfg(test)]
38  mod tests {
39      use super::*;
40      use alphavm_console_network_environment::Console;
41  
42      type CurrentEnvironment = Console;
43  
44      const ITERATIONS: u64 = 10_000;
45  
46      fn check_bytes<I: IntegerType>(rng: &mut TestRng) -> Result<()> {
47          for _ in 0..ITERATIONS {
48              // Sample a random integer.
49              let expected: Integer<CurrentEnvironment, I> = Uniform::rand(rng);
50  
51              // Check the byte representation.
52              let expected_bytes = expected.to_bytes_le()?;
53              assert_eq!(expected, Integer::read_le(&expected_bytes[..])?);
54              assert!(Integer::<CurrentEnvironment, I>::read_le(&expected_bytes[1..]).is_err());
55  
56              // Dereference the integer and compare bytes.
57              let deref_bytes = (*expected).to_bytes_le()?;
58              for (expected, candidate) in expected_bytes.iter().zip_eq(&deref_bytes) {
59                  assert_eq!(expected, candidate);
60              }
61          }
62          Ok(())
63      }
64  
65      #[test]
66      fn test_bytes() -> Result<()> {
67          let mut rng = TestRng::default();
68  
69          check_bytes::<u8>(&mut rng)?;
70          check_bytes::<u16>(&mut rng)?;
71          check_bytes::<u32>(&mut rng)?;
72          check_bytes::<u64>(&mut rng)?;
73          check_bytes::<u128>(&mut rng)?;
74  
75          check_bytes::<i8>(&mut rng)?;
76          check_bytes::<i16>(&mut rng)?;
77          check_bytes::<i32>(&mut rng)?;
78          check_bytes::<i64>(&mut rng)?;
79          check_bytes::<i128>(&mut rng)?;
80  
81          Ok(())
82      }
83  }