build: ➕ switch to array_helpers dependency

Nargo.toml

@@ -4,3 +4,4 @@ compiler_version = "0.6.0"
 notes = "AMDG"
 
 [dependencies]
+array_helpers = { tag = "v0.1.0", git = "https://github.com/colinnielsen/noir-array-helpers" }

src/secp256k1.nr

@@ -1,6 +1,6 @@
 use dep::std;
 
-mod helpers;
+use dep::array_helpers;
 
 struct PubKey {
     pub_x: [u8; 32],
@@ -31,7 +31,7 @@ impl PubKey {
     }
 
     fn from_unified(pub_key: [u8; 64]) -> PubKey {
-        let (key_x, key_y) = helpers::split_u8_64_unconstrained(pub_key);
+        let (key_x, key_y) = array_helpers::split_u8_64_unconstrained(pub_key);
 
         PubKey {
             pub_x: key_x,
@@ -54,14 +54,14 @@ impl PubKey {
     }
 
     fn to_eth_address(self) -> Field {
-        let pub_key = helpers::u8_32_to_u8_64_unconstrained(self.pub_x, self.pub_y);
+        let pub_key = array_helpers::u8_32_to_u8_64_unconstrained(self.pub_x, self.pub_y);
         let hashed_pub_key = std::hash::keccak256(pub_key);
 
         let mut right_20_bytes: [u8; 20] = [0; 20];
         for i in 0..20 {
             right_20_bytes[i] = hashed_pub_key[i + 12];
         }
 
-        helpers::u8_to_eth_address(right_20_bytes)
+        array_helpers::u8_to_eth_address(right_20_bytes)
     }
 }