Create macros for simplifying element attribute getters (fixes #1931)

src/components/script/dom/macros.rs

@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#![macro_escape]
+
+#[macro_export]
+macro_rules! make_getters(
+    ( $($attr:ident),+ ) => (
+        $(
+            fn $attr(&self) -> DOMString {
+                use dom::element::{Element, AttributeHandlers};
+                use dom::bindings::codegen::InheritTypes::ElementCast;
+                let element: &JSRef<Element> = ElementCast::from_ref(self);
+                element.get_string_attribute(stringify!($attr))
+            }
+        )+
+    );
+)
+
+#[macro_export]
+macro_rules! make_bool_getters(
+    ( $($attr:ident),+ ) => (
+        $(
+            fn $attr(&self) -> bool {
+                use dom::element::{Element, AttributeHandlers};
+                use dom::bindings::codegen::InheritTypes::ElementCast;
+                let element: &JSRef<Element> = ElementCast::from_ref(self);
+                element.has_attribute(stringify!($attr))
+            }
+        )+
+    );
+)
+
+#[macro_export]
+macro_rules! make_uint_getters(
+    ( $($attr:ident),+ ) => (
+        $(
+            fn $attr(&self) -> u32 {
+                use dom::element::{Element, AttributeHandlers};
+                use dom::bindings::codegen::InheritTypes::ElementCast;
+                let element: &JSRef<Element> = ElementCast::from_ref(self);
+                element.get_uint_attribute(stringify!($attr))
+            }
+        )+
+    );
+)

src/components/script/script.rs

@@ -73,6 +73,7 @@ pub mod dom {
 
     #[path="bindings/codegen/InterfaceTypes.rs"]
     pub mod types;
+    pub mod macros;
 
     pub mod attr;
     pub mod attrlist;