Fix most Clippy warnings.

src/ctap/command.rs

@@ -325,7 +325,7 @@ impl TryFrom<cbor::Value> for AuthenticatorClientPinParameters {
         let key_agreement = key_agreement
             .map(extract_map)
             .transpose()?
-            .map(|x| CoseKey(x));
+            .map(CoseKey);
         let pin_auth = pin_auth.map(extract_byte_string).transpose()?;
         let new_pin_enc = new_pin_enc.map(extract_byte_string).transpose()?;
         let pin_hash_enc = pin_hash_enc.map(extract_byte_string).transpose()?;

src/ctap/mod.rs

@@ -694,7 +694,7 @@ where
             key_id: credential.credential_id.clone(),
             transports: None, // You can set USB as a hint here.
         };
-        let user = if (flags & UV_FLAG != 0) && (credential.user_handle.len() > 0) {
+        let user = if (flags & UV_FLAG != 0) && !credential.user_handle.is_empty() {
             Some(PublicKeyCredentialUserEntity {
                 user_id: credential.user_handle.clone(),
                 user_name: None,

src/ctap/storage.rs

@@ -88,6 +88,7 @@ const _DEFAULT_MIN_PIN_LENGTH_RP_IDS: Vec<String> = Vec::new();
 #[cfg(feature = "with_ctap2_1")]
 const _MAX_RP_IDS_LENGTH: usize = 8;
 
+#[allow(clippy::enum_variant_names)]
 #[derive(PartialEq, Eq, PartialOrd, Ord)]
 enum Key {
     // TODO(cretin): Test whether this doesn't consume too much memory. Otherwise, we can use less
@@ -406,10 +407,11 @@ impl PersistentStore {
             data: pin_hash,
             sensitive: true,
         };
-        Ok(match self.store.find_one(&Key::PinHash) {
+        match self.store.find_one(&Key::PinHash) {
             None => self.store.insert(entry)?,
             Some((index, _)) => self.store.replace(index, entry)?,
-        })
+        }
+        Ok(())
     }
 
     pub fn pin_retries(&self) -> Result<u8, Ctap2StatusCode> {