1  // Copyright (c) 2019-2025 Alpha-Delta Network Inc.
 2  // This file is part of the alphavm 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  mod bytes;
17  mod serialize;
18  mod string;
19  mod to_bits;
20  
21  use alphavm_console_network::prelude::*;
22  use alphavm_console_types::Field;
23  
24  /// The Merkle leaf for the block header.
25  #[derive(Copy, Clone, PartialEq, Eq)]
26  pub struct HeaderLeaf<N: Network> {
27      /// The index of the Merkle leaf.
28      index: u8,
29      /// The ID.
30      id: Field<N>,
31  }
32  
33  impl<N: Network> HeaderLeaf<N> {
34      /// Initializes a new instance of `HeaderLeaf`.
35      pub const fn new(index: u8, id: Field<N>) -> Self {
36          Self { index, id }
37      }
38  
39      /// Returns the index of the Merkle leaf.
40      pub const fn index(&self) -> u8 {
41          self.index
42      }
43  
44      /// Returns the ID in the Merkle leaf.
45      pub const fn id(&self) -> Field<N> {
46          self.id
47      }
48  }
49  
50  #[cfg(test)]
51  mod test_helpers {
52      use super::*;
53      use alphavm_console_network::MainnetV0;
54  
55      type CurrentNetwork = MainnetV0;
56  
57      pub(super) fn sample_leaf(rng: &mut TestRng) -> HeaderLeaf<CurrentNetwork> {
58          // Construct a new leaf.
59          HeaderLeaf::new(rng.r#gen(), Uniform::rand(rng))
60      }
61  }