X25519.x25519_if: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/crypto/curve25519/x25519.bend as X25519
Lines 144-149 of bend-collections@1.0.0.0/src/crypto/curve25519/x25519.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/curve25519/x25519.bend&start_line=144&end_line=149

import Base

def x25519_if(ok: Bool, k: List<&2, U32>, u: List<&2, U32>) -> Maybe<&2, List<&2, U32>>:
  match ok:
    case True{}:
      Some{x25519_raw(k, u)}
    case False{}:
      None{}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/curve25519/x25519.bend&name=x25519_raw