fix: template typechecking is more stringent (#470)

mratsim · Sep 25, 2024 · c5e88a9 · c5e88a9
1 parent d5c2bbc
commit c5e88a9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/constantine/ciphers/chacha20.nim b/constantine/ciphers/chacha20.nim
@@ -28,7 +28,7 @@ template rotl(x, n: uint32): uint32 =
   # We always use it with constants in 0 ..< 32
   # so no undefined behaviour.
   (x shl n) or (x shr (32 - n))
-template `^=`(x: var uint32, y: uint32) =
+template `^=`[T: uint32|byte](x: var T, y: T) =
   x = x xor y
 template `<<<=`(x: var uint32, n: uint32) =
   x = x.rotl(n)
@@ -126,4 +126,4 @@ func chacha20_cipher*(
     eaten += 64
     counter += 1
 
-  return counter
+  return counter