macros: Allow non-String in generate_elem_id!().

src/mood.rs

@@ -302,7 +302,11 @@ mod tests {
         let elem: Element = "<text xmlns='http://jabber.org/protocol/mood'>Yay!</text>"
             .parse()
             .unwrap();
+        let elem2 = elem.clone();
         let text = Text::try_from(elem).unwrap();
         assert_eq!(text.0, String::from("Yay!"));
+
+        let elem3 = text.into();
+        assert_eq!(elem2, elem3);
     }
 }

src/muc/user.rs

@@ -511,8 +511,12 @@ mod tests {
             <reason xmlns='http://jabber.org/protocol/muc#user'>Reason</reason>"
             .parse()
             .unwrap();
+        let elem2 = elem.clone();
         let reason = Reason::try_from(elem).unwrap();
         assert_eq!(reason.0, "Reason".to_owned());
+
+        let elem3 = reason.into();
+        assert_eq!(elem2, elem3);
     }
 
     #[cfg(not(feature = "disable-validation"))]

src/util/macros.rs

@@ -410,9 +410,7 @@ macro_rules! generate_id {
 
 macro_rules! generate_elem_id {
     ($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident) => (
-        $(#[$meta])*
+        generate_elem_id!($(#[$meta])* $elem, $name, $ns, String);
-        #[derive(Debug, Clone, PartialEq, Eq, Hash)]
-        pub struct $elem(pub String);
         impl ::std::str::FromStr for $elem {
             type Err = crate::util::error::Error;
             fn from_str(s: &str) -> Result<$elem, crate::util::error::Error> {
@@ -420,6 +418,11 @@ macro_rules! generate_elem_id {
                 Ok($elem(String::from(s)))
             }
         }
+    );
+    ($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, $type:ty) => (
+        $(#[$meta])*
+        #[derive(Debug, Clone, PartialEq, Eq, Hash)]
+        pub struct $elem(pub $type);
         impl ::std::convert::TryFrom<::minidom::Element> for $elem {
             type Error = crate::util::error::Error;
             fn try_from(elem: ::minidom::Element) -> Result<$elem, crate::util::error::Error> {
@@ -427,14 +430,14 @@ macro_rules! generate_elem_id {
                 check_no_children!(elem, $name);
                 check_no_attributes!(elem, $name);
                 // TODO: add a way to parse that differently when needed.
-                Ok($elem(elem.text()))
+                Ok($elem(elem.text().parse()?))
             }
         }
         impl From<$elem> for ::minidom::Element {
             fn from(elem: $elem) -> ::minidom::Element {
                 ::minidom::Element::builder($name)
                     .ns(crate::ns::$ns)
-                    .append(elem.0)
+                    .append(elem.0.to_string())
                     .build()
             }
         }