xml: new variant flag and fixes to generic types

crates/xml/tests/propertyupdate.rs

@@ -0,0 +1,57 @@
+use rustical_xml::{Unparsed, XmlDeserialize, XmlDocument, XmlRootTag};
+
+#[test]
+fn test_propertyupdate() {
+    #[derive(XmlDeserialize)]
+    struct SetPropertyElement<T: XmlDeserialize> {
+        prop: T,
+    }
+
+    #[derive(XmlDeserialize)]
+    struct TagName {
+        #[xml(ty = "tag_name")]
+        name: String,
+    }
+
+    #[derive(XmlDeserialize)]
+    struct PropertyElement {
+        #[xml(ty = "untagged")]
+        property: TagName,
+    }
+
+    #[derive(XmlDeserialize)]
+    struct RemovePropertyElement {
+        prop: PropertyElement,
+    }
+
+    #[derive(XmlDeserialize)]
+    enum Operation<T: XmlDeserialize> {
+        Set(SetPropertyElement<T>),
+        Remove(RemovePropertyElement),
+    }
+
+    #[derive(XmlDeserialize, XmlRootTag)]
+    #[xml(root = b"propertyupdate")]
+    struct PropertyupdateElement<T: XmlDeserialize> {
+        #[xml(ty = "untagged", flatten)]
+        operations: Vec<Operation<T>>,
+    }
+
+    let doc = PropertyupdateElement::<Unparsed>::parse_str(
+        r#"
+         <propertyupdate>
+            <set>
+                <prop>
+                    <displayname>Hello</displayname>
+                </prop>
+            </set>
+            <remove>
+                <prop>
+                    <displayname />
+                </prop>
+            </remove>
+         </propertyupdate>
+     "#,
+    )
+    .unwrap();
+}