Merge rust-bitcoin/rust-miniscript#328: Implement ToPublicKey for secp PublicKey

05a71e2e0c7505a25472afc1021ff34dc241a134 Implement ToPublicKey for secp PublicKey (Dr Maxim Orlovsky)

Pull request description:

  When doing #327 this one got missed

ACKs for top commit:
  apoelstra:
    ACK 05a71e2e0c7505a25472afc1021ff34dc241a134
  sanket1729:
    ACK 05a71e2e0c7505a25472afc1021ff34dc241a134

Tree-SHA512: 7eb5017e15529352a7a2449d469496ebbaa530e860abab6c881be700af83d0e8ebaa6cd2c40c300ab9efb1e8fad1cb7350bd1fc3552ba5407c85e63020dbf4ea

Author: heap-coder

src/lib.rs

@@ -239,6 +239,16 @@ impl ToPublicKey for bitcoin::PublicKey {
     }
 }
 
+impl ToPublicKey for bitcoin::secp256k1::PublicKey {
+    fn to_public_key(&self) -> bitcoin::PublicKey {
+        bitcoin::PublicKey::new(*self)
+    }
+
+    fn hash_to_hash160(hash: &hash160::Hash) -> hash160::Hash {
+        *hash
+    }
+}
+
 impl ToPublicKey for bitcoin::secp256k1::XOnlyPublicKey {
     fn to_public_key(&self) -> bitcoin::PublicKey {
         // This code should never be used.