chore: Move hash logic out of primitives (#172)

pallas-primitives/src/babbage/crypto.rs

@@ -1,67 +0,0 @@
-use crate::ToHash;
-
-use super::{DatumOption, Header, PlutusV2Script, TransactionBody};
-use pallas_codec::utils::KeepRaw;
-use pallas_crypto::hash::{Hash, Hasher};
-
-impl ToHash<32> for Header {
-    fn to_hash(&self) -> pallas_crypto::hash::Hash<32> {
-        Hasher::<256>::hash_cbor(self)
-    }
-}
-
-impl ToHash<28> for PlutusV2Script {
-    fn to_hash(&self) -> Hash<28> {
-        Hasher::<224>::hash_tagged_cbor(self, 1)
-    }
-}
-
-impl ToHash<32> for TransactionBody {
-    fn to_hash(&self) -> Hash<32> {
-        Hasher::<256>::hash_cbor(self)
-    }
-}
-
-impl ToHash<32> for KeepRaw<'_, TransactionBody> {
-    fn to_hash(&self) -> pallas_crypto::hash::Hash<32> {
-        Hasher::<256>::hash(self.raw_cbor())
-    }
-}
-
-impl ToHash<32> for DatumOption {
-    fn to_hash(&self) -> Hash<32> {
-        match self {
-            DatumOption::Hash(hash) => *hash,
-            DatumOption::Data(data) => data.to_hash(),
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use pallas_codec::minicbor;
-
-    use crate::babbage::MintedBlock;
-    use crate::ToHash;
-
-    type BlockWrapper<'b> = (u16, MintedBlock<'b>);
-
-    #[test]
-    fn transaction_hash_works() {
-        // TODO: expand this test to include more test blocks
-        let block_idx = 1;
-        let block_str = include_str!("../../../test_data/babbage1.block");
-
-        let block_bytes = hex::decode(block_str).expect(&format!("bad block file {}", block_idx));
-        let (_, block_model): BlockWrapper = minicbor::decode(&block_bytes[..])
-            .expect(&format!("error decoding cbor for file {}", block_idx));
-
-        let valid_hashes = vec!["3fad302595665b004971a6b76909854a39a0a7ecdbff3692f37b77ae37dbe882"];
-
-        for (tx_idx, tx) in block_model.transaction_bodies.iter().enumerate() {
-            let computed_hash = tx.to_hash();
-            let known_hash = valid_hashes[tx_idx];
-            assert_eq!(hex::encode(computed_hash), known_hash)
-        }
-    }
-}

pallas-primitives/src/babbage/mod.rs

@@ -1,4 +1,3 @@
-mod crypto;
 mod model;
 
 pub use model::*;