Make attribute creation more uniform

closes #410

Changelog.md

@@ -95,6 +95,8 @@
   Use methods on `Attribute` instead
 
 - [#403]: Remove deprecated `quick_xml::de::from_bytes` and `Deserializer::from_borrowing_reader`
+- [#413]: Removed the `Attribute::from((&[u8], &[u8]))` implementation, use
+  `Attribute::new(&[u8], &[u8])` instead.
 
 ### New Tests
 
@@ -117,6 +119,7 @@
 [#395]: https://github.com/tafia/quick-xml/pull/395
 [#403]: https://github.com/tafia/quick-xml/pull/403
 [#407]: https://github.com/tafia/quick-xml/pull/407
+[#413]: https://github.com/tafia/quick-xml/pull/413
 
 ## 0.23.0 -- 2022-05-08
 

src/events/attributes.rs

@@ -32,6 +32,25 @@ pub struct Attribute<'a> {
 }
 
 impl<'a> Attribute<'a> {
+    /// Creates new attribute from raw bytes.
+    /// Does not apply any transformation to either key or value.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// # use pretty_assertions::assert_eq;
+    /// use quick_xml::events::attributes::Attribute;
+    ///
+    /// let features = Attribute::new("features".as_bytes(), "Bells &amp; whistles".as_bytes());
+    /// assert_eq!(features.value, "Bells &amp; whistles".as_bytes());
+    /// ```
+    pub fn new(name: &'a [u8], val: &'a [u8]) -> Attribute<'a> {
+        Attribute {
+            key: QName(name),
+            value: Cow::from(val),
+        }
+    }
+
     /// Returns the unescaped value.
     ///
     /// This is normally the value you are interested in. Escape sequences such as `&gt;` are
@@ -130,27 +149,6 @@ impl<'a> Debug for Attribute<'a> {
     }
 }
 
-impl<'a> From<(&'a [u8], &'a [u8])> for Attribute<'a> {
-    /// Creates new attribute from raw bytes.
-    /// Does not apply any transformation to both key and value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// # use pretty_assertions::assert_eq;
-    /// use quick_xml::events::attributes::Attribute;
-    ///
-    /// let features = Attribute::from(("features".as_bytes(), "Bells &amp; whistles".as_bytes()));
-    /// assert_eq!(features.value, "Bells &amp; whistles".as_bytes());
-    /// ```
-    fn from(val: (&'a [u8], &'a [u8])) -> Attribute<'a> {
-        Attribute {
-            key: QName(val.0),
-            value: Cow::from(val.1),
-        }
-    }
-}
-
 impl<'a> From<(&'a str, &'a str)> for Attribute<'a> {
     /// Creates new attribute from text representation.
     /// Key is stored as-is, but the value will be escaped.

src/se/var.rs

@@ -139,7 +139,7 @@ where
                     self.children.append(&mut self.buffer);
                 } else {
                     self.attrs
-                        .push_attribute((key.as_bytes(), self.buffer.as_ref()));
+                        .push_attribute(Attribute::new(key.as_bytes(), self.buffer.as_ref()));
                     self.buffer.clear();
                 }
             }