implemented decode for u8

Author: simplist-coder

amqp-type/src/fixed_width/ubyte.rs

@@ -1,3 +1,4 @@
+use crate::error::AppError;
 use crate::serde::encode::{Encode, Encoded};
 use crate::serde::decode::Decode;
 
@@ -17,10 +18,16 @@ impl Decode for u8 {
         }
     }
 
-    fn try_decode(data: impl Iterator<Item = u8>) -> Result<Self, crate::error::AppError>
+    fn try_decode(mut iter: impl Iterator<Item = u8>) -> Result<Self, crate::error::AppError>
         where
             Self: Sized {
-        todo!()
+        let con = iter.next();
+        let val = iter.next();
+        match (con, val) {
+            (Some(0x50), Some(x)) => Ok(x),
+            (Some(_), _) => Err(AppError::DeserializationError("ubyte (u8)".to_string(), "Wrong constructor".to_string())),
+            (_, _) => Err(AppError::DeserializationError("ubyte (u8)".to_string(), "Iterator was empty".to_string()))
+        }
     }
 
 }

amqp-type/src/serde/decode.rs

@@ -5,8 +5,8 @@ use crate::error::AppError;
 pub struct Constructor(u8);
 
 pub trait Decode {
-    fn can_decode(data: impl Iterator<Item = u8>) -> bool;
-    fn try_decode(data: impl Iterator<Item = u8>) -> Result<Self, AppError>
+    fn can_decode(iter: impl Iterator<Item = u8>) -> bool;
+    fn try_decode(iter: impl Iterator<Item = u8>) -> Result<Self, AppError>
     where
         Self: Sized;
 }