fix: move code in src/protocol/info_hash.rs

Author: da2ce7

src/protocol/info_hash.rs

@@ -64,6 +64,35 @@ impl<'de> serde::de::Deserialize<'de> for InfoHash {
     }
 }
 
+struct InfoHashVisitor;
+
+impl<'v> serde::de::Visitor<'v> for InfoHashVisitor {
+    type Value = InfoHash;
+
+    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(formatter, "a 40 character long hash")
+    }
+
+    fn visit_str<E: serde::de::Error>(self, v: &str) -> Result<Self::Value, E> {
+        if v.len() != 40 {
+            return Err(serde::de::Error::invalid_value(
+                serde::de::Unexpected::Str(v),
+                &"expected a 40 character long string",
+            ));
+        }
+
+        let mut res = InfoHash([0u8; 20]);
+
+        if binascii::hex2bin(v.as_bytes(), &mut res.0).is_err() {
+            return Err(serde::de::Error::invalid_value(
+                serde::de::Unexpected::Str(v),
+                &"expected a hexadecimal string",
+            ));
+        };
+        Ok(res)
+    }
+}
+
 #[cfg(test)]
 mod tests {
 
@@ -159,32 +188,3 @@ mod tests {
         );
     }
 }
-
-struct InfoHashVisitor;
-
-impl<'v> serde::de::Visitor<'v> for InfoHashVisitor {
-    type Value = InfoHash;
-
-    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-        write!(formatter, "a 40 character long hash")
-    }
-
-    fn visit_str<E: serde::de::Error>(self, v: &str) -> Result<Self::Value, E> {
-        if v.len() != 40 {
-            return Err(serde::de::Error::invalid_value(
-                serde::de::Unexpected::Str(v),
-                &"expected a 40 character long string",
-            ));
-        }
-
-        let mut res = InfoHash([0u8; 20]);
-
-        if binascii::hex2bin(v.as_bytes(), &mut res.0).is_err() {
-            return Err(serde::de::Error::invalid_value(
-                serde::de::Unexpected::Str(v),
-                &"expected a hexadecimal string",
-            ));
-        };
-        Ok(res)
-    }
-}