fix(interop): map missing u5c redeemers (#490)

pallas-traverse/src/tx.rs

@@ -1,5 +1,6 @@
 use std::{borrow::Cow, collections::HashSet, ops::Deref};
 
+use itertools::Itertools;
 use pallas_codec::{minicbor, utils::KeepRaw};
 use pallas_crypto::hash::Hash;
 use pallas_primitives::{
@@ -209,6 +210,27 @@ impl<'b> MultiEraTx<'b> {
         raw
     }
 
+    pub fn mints_sorted_set(&self) -> Vec<MultiEraPolicyAssets> {
+        let mut raw = self.mints();
+
+        raw.sort_by_key(|m| *m.policy());
+
+        raw
+    }
+
+    pub fn withdrawals_sorted_set(&self) -> Vec<(&[u8], u64)> {
+        match self.withdrawals() {
+            MultiEraWithdrawals::NotApplicable | MultiEraWithdrawals::Empty => {
+                std::iter::empty().collect()
+            }
+            MultiEraWithdrawals::AlonzoCompatible(x) => x
+                .iter()
+                .map(|(k, v)| (k.as_slice(), *v))
+                .sorted_by_key(|(k, _)| *k)
+                .collect(),
+        }
+    }
+
     /// Return the transaction reference inputs
     ///
     /// NOTE: It is possible for this to return duplicates. See

pallas-traverse/src/witnesses.rs

@@ -161,6 +161,26 @@ impl<'b> MultiEraTx<'b> {
         })
     }
 
+    pub fn find_mint_redeemer(&self, mint_order: u32) -> Option<MultiEraRedeemer> {
+        self.redeemers().into_iter().find(|r| {
+            r.tag() == pallas_primitives::conway::RedeemerTag::Mint && r.index() == mint_order
+        })
+    }
+
+    pub fn find_withdrawal_redeemer(&self, withdrawal_order: u32) -> Option<MultiEraRedeemer> {
+        self.redeemers().into_iter().find(|r| {
+            r.tag() == pallas_primitives::conway::RedeemerTag::Reward
+                && r.index() == withdrawal_order
+        })
+    }
+
+    pub fn find_certificate_redeemer(&self, certificate_order: u32) -> Option<MultiEraRedeemer> {
+        self.redeemers().into_iter().find(|r| {
+            r.tag() == pallas_primitives::conway::RedeemerTag::Cert
+                && r.index() == certificate_order
+        })
+    }
+
     pub fn plutus_v2_scripts(&self) -> &[PlutusV2Script] {
         match self {
             Self::Byron(_) => &[],