Add render method to Component and auto implement Renderable

src/components/select.rs

@@ -16,7 +16,7 @@
 //! }
 
 use crate::callback::Callback;
-use crate::html::{ChangeData, Component, ComponentLink, Html, Renderable, ShouldRender};
+use crate::html::{ChangeData, Component, ComponentLink, Html, ShouldRender};
 use crate::macros::{html, Properties};
 
 /// `Select` component.
@@ -46,7 +46,7 @@ pub struct Props<T> {
 
 impl<T> Component for Select<T>
 where
-    T: PartialEq + Clone + 'static,
+    T: ToString + PartialEq + Clone + 'static,
 {
     type Message = Msg;
     type Properties = Props<T>;
@@ -73,13 +73,8 @@ where
         self.props = props;
         true
     }
-}
 
-impl<T> Renderable<Select<T>> for Select<T>
-where
-    T: ToString + PartialEq + Clone + 'static,
-{
-    fn view(&self) -> Html<Self> {
+    fn render(&self) -> Html<Self> {
         let selected = self.props.selected.as_ref();
         let view_option = |value: &T| {
             let flag = selected == Some(value);

src/html.rs

@@ -34,6 +34,8 @@ pub trait Component: Sized + 'static {
     fn change(&mut self, _: Self::Properties) -> ShouldRender {
         true
     }
+    /// Called by rendering loop.
+    fn render(&self) -> Html<Self>;
     /// Called for finalization on the final point of the component's lifetime.
     fn destroy(&mut self) {} // TODO Replace with `Drop`
 }
@@ -68,6 +70,12 @@ pub trait Renderable<COMP: Component> {
     fn view(&self) -> Html<COMP>;
 }
 
+impl<COMP: Component> Renderable<COMP> for COMP {
+    fn view(&self) -> Html<COMP> {
+        self.render()
+    }
+}
+
 /// Updates for a `Components` instance. Used by scope sender.
 pub(crate) enum ComponentUpdate<COMP: Component> {
     /// Wraps messages for a component.