Derive Hash on a bunch of types

In preparation for being able to derive `Hash` on all types in
`miniscript`, derive `Hash` on all of the required types.

src/blockdata/transaction.rs

@@ -743,7 +743,7 @@ pub type SigHashType = EcdsaSighashType;
 ///
 /// Fixed values so they can be cast as integer types for encoding (see also
 /// [`SchnorrSighashType`]).
-#[derive(PartialEq, Eq, Debug, Copy, Clone)]
+#[derive(PartialEq, Eq, Debug, Copy, Clone, Hash)]
 pub enum EcdsaSighashType {
     /// 0x1: Sign all outputs.
     All		= 0x01,

src/util/bip32.rs

@@ -46,7 +46,7 @@ impl_array_newtype!(Fingerprint, u8, 4);
 impl_bytes_newtype!(Fingerprint, 4);
 
 /// Extended private key
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "std", derive(Debug))]
 pub struct ExtendedPrivKey {
     /// The network this key is to be used on

src/util/ecdsa.rs

@@ -25,7 +25,7 @@ use secp256k1;
 use EcdsaSighashType;
 
 /// An ECDSA signature with the corresponding hash type.
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct EcdsaSig {
     /// The underlying ECDSA Signature

src/util/key.rs

@@ -234,7 +234,7 @@ impl FromStr for PublicKey {
 }
 
 /// A Bitcoin ECDSA private key
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "std", derive(Debug))]
 pub struct PrivateKey {
     /// Whether this private key should be serialized as compressed

src/util/psbt/map/input.rs

@@ -79,7 +79,7 @@ const PSBT_IN_PROPRIETARY: u8 = 0xFC;
 
 /// A key-value map for an input of the corresponding index in the unsigned
 /// transaction.
-#[derive(Clone, Default, Debug, PartialEq, Eq)]
+#[derive(Clone, Default, Debug, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Input {
     /// The non-witness transaction this input spends from. Should only be

src/util/psbt/map/output.rs

@@ -47,7 +47,7 @@ const PSBT_OUT_PROPRIETARY: u8 = 0xFC;
 
 /// A key-value map for an output of the corresponding index in the unsigned
 /// transaction.
-#[derive(Clone, Default, Debug, PartialEq, Eq)]
+#[derive(Clone, Default, Debug, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Output {
     /// The redeem script for this output.
@@ -113,7 +113,7 @@ impl core::fmt::Display for IncompleteTapTree {
 impl ::std::error::Error for IncompleteTapTree {}
 
 /// Taproot Tree representing a finalized [`TaprootBuilder`] (a complete binary tree).
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct TapTree(pub(crate) TaprootBuilder);
 

src/util/psbt/mod.rs

@@ -50,7 +50,7 @@ use util::bip32::{ExtendedPubKey, KeySource};
 pub type Psbt = PartiallySignedTransaction;
 
 /// A Partially Signed Transaction.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct PartiallySignedTransaction {
     /// The unsigned transaction, scriptSigs and witnesses for each input must be

src/util/schnorr.rs

@@ -138,7 +138,7 @@ impl TapTweak for UntweakedKeyPair {
     /// # Returns
     /// The tweaked key and its parity.
     fn tap_tweak<C: Verification>(mut self, secp: &Secp256k1<C>, merkle_root: Option<TapBranchHash>) -> TweakedKeyPair {
-        let pubkey = ::XOnlyPublicKey::from_keypair(&self);
+        let (pubkey, _parity) = ::XOnlyPublicKey::from_keypair(&self);
         let tweak_value = TapTweakHash::from_key_and_tweak(pubkey, merkle_root).into_inner();
         self.tweak_add_assign(&secp, &tweak_value).expect("Tap tweak failed");
         TweakedKeyPair(self)
@@ -212,7 +212,7 @@ impl From<TweakedKeyPair> for ::KeyPair {
 }
 
 /// A BIP340-341 serialized schnorr signature with the corresponding hash type.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct SchnorrSig {
     /// The underlying schnorr signature