Fix clippy issues

Signed-off-by: Ionut Mihalcea <[email protected]>

build.rs

@@ -17,11 +17,11 @@ fn generate_ts_bindings(ts_include_dir: String) -> Result<()> {
         .generate_comments(false)
         .size_t_is_usize(true)
         .generate()
-        .or_else(|_| {
-            Err(Error::new(
+        .map_err(|_| {
+            Error::new(
                 ErrorKind::Other,
                 "Unable to generate bindings to trusted services locator",
-            ))
+            )
         })?;
     let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
     bindings.write_to_file(out_path.join("ts_bindings.rs"))?;
@@ -49,11 +49,11 @@ fn generate_proto_sources(contract_dir: String) -> Result<()> {
                 .path()
                 .into_os_string()
                 .into_string()
-                .or_else(|_| {
-                    Err(Error::new(
+                .map_err(|_| {
+                    Error::new(
                         ErrorKind::InvalidData,
                         "conversion from OsString to String failed",
-                    ))
+                    )
                 })
         })
         // Fail the entire operation if there was an error.

src/providers/mbed_crypto/asym_encryption.rs

@@ -62,10 +62,7 @@ impl Provider {
         let id = key::Id::from_persistent_key_id(key_id)?;
         let key_attributes = key::Attributes::from_key_id(id)?;
         op.validate(key_attributes)?;
-        let salt_buff = match &op.salt {
-            Some(salt) => Some(salt.as_slice()),
-            None => None,
-        };
+        let salt_buff = op.salt.as_ref().map(|salt| salt.as_slice());
         let buffer_size = key_attributes.asymmetric_decrypt_output_size(op.alg)?;
         let mut plaintext = vec![0u8; buffer_size];