src/lib.rs

@@ -1049,9 +1049,9 @@ impl MessageBehavior for VmcExtOpt {
             args: vec![OscType::from(self.option.to_owned())],
         };
     }
-    fn from_osc_message(msg: OscMessage) -> Result<Self, String> {
+    fn from_osc_message(msg: OscMessage) -> Result<Self, FromMessageErr> {
         if msg.args.len() != 1 {
-            return Err(String::from("arg count invalid"));
+            return Err(FromMessageErr::ArgCount(ArgCountErr { expected_in: vec![1], actual: msg.args.len(), addr: msg.addr}));
         }
         match &msg.args[0] {
             OscType::String(s) => {
@@ -1059,7 +1059,7 @@ impl MessageBehavior for VmcExtOpt {
                     option: s.to_owned(),
                 })
             }
-            _ => return Err(String::from("arg type invalid")),
+            _ => return Err(FromMessageErr::ArgType(ArgTypeErr { expected: OscType::String(String::new()), actual: msg.args[0], addr: msg.addr, arg_count: 0})),
         }
     }
 }