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  use super::*;
17  
18  impl<N: Network, Private: Visibility> Record<N, Private> {
19      /// Returns the number of field elements to encode `self`.
20      pub(crate) fn num_randomizers(&self) -> Result<u16> {
21          // Initialize an tracker for the number of randomizers.
22          let mut num_randomizers: u16 = 0;
23  
24          // If the owner is private, increment the number of randomizers by 1.
25          if self.owner.is_private() {
26              num_randomizers += 1;
27          }
28  
29          // Increment the number of randomizers by the number of data randomizers.
30          for (_, entry) in self.data.iter() {
31              num_randomizers = num_randomizers
32                  .checked_add(entry.num_randomizers()?)
33                  .ok_or_else(|| anyhow!("Number of randomizers exceeds maximum allowed size."))?;
34          }
35  
36          // Ensure the number of randomizers does not exceed the maximum allowed size.
37          match num_randomizers as u32 <= N::MAX_DATA_SIZE_IN_FIELDS {
38              true => Ok(num_randomizers),
39              false => bail!("Number of randomizers exceeds the maximum allowed size."),
40          }
41      }
42  }