refactor: Fix perform_cmd usage in examples

Author: TatriX

examples/orders/src/lib.rs

@@ -43,14 +43,14 @@ fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-async fn write_exclamation_marks_after_delay() -> Result<Msg, Msg> {
+async fn write_exclamation_marks_after_delay() -> Msg {
     TimeoutFuture::new(1_000).await;
-    Ok(Msg::WriteExclamationMarks)
+    Msg::WriteExclamationMarks
 }
 
-async fn write_emoticon_after_delay(emoticon: String) -> Result<Msg, Msg> {
+async fn write_emoticon_after_delay(emoticon: String) -> Msg {
     TimeoutFuture::new(2_000).await;
-    Ok(Msg::WriteEmoticon(emoticon))
+    Msg::WriteEmoticon(emoticon)
 }
 
 // ------ ------

examples/server_integration/client/src/example_a.rs

@@ -55,7 +55,7 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-async fn send_request(new_message: String) -> Result<Msg, Msg> {
+async fn send_request(new_message: String) -> Msg {
     fetch::Request::new(get_request_url())
         .method(fetch::Method::Post)
         .send_json(&shared::SendMessageRequestBody { text: new_message })

examples/server_integration/client/src/example_b.rs

@@ -52,7 +52,7 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-async fn send_request() -> Result<Msg, Msg> {
+async fn send_request() -> Msg {
     fetch::Request::new(get_request_url())
         .fetch_json(|fetch_object| Msg::Fetched(fetch_object.result))
         .await

examples/server_integration/client/src/example_e.rs

@@ -114,7 +114,7 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-async fn send_request(form: FormData) -> Result<Msg, Msg> {
+async fn send_request(form: FormData) -> Msg {
     fetch::Request::new(get_request_url())
         .method(fetch::Method::Post)
         .body(form.into())

examples/server_interaction/src/lib.rs

@@ -103,13 +103,13 @@ fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-async fn fetch_repository_info() -> Result<Msg, Msg> {
+async fn fetch_repository_info() -> Msg {
     Request::new(REPOSITORY_URL)
         .fetch_json_data(Msg::RepositoryInfoFetched)
         .await
 }
 
-async fn send_message() -> Result<Msg, Msg> {
+async fn send_message() -> Msg {
     let message = SendMessageRequestBody {
         name: "Mark Watney".into(),
         email: "mark@crypt.kk".into(),

examples/update_from_js/src/lib.rs

@@ -45,9 +45,9 @@ fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-async fn wrap_in_future(f: impl FnOnce()) -> Result<Msg, Msg> {
+async fn wrap_in_future(f: impl FnOnce()) -> Msg {
     f();
-    Ok(Msg::NoOp)
+    Msg::NoOp
 }
 
 // ------ ------

examples/user_media/src/lib.rs

@@ -20,7 +20,7 @@ fn after_mount(_: Url, orders: &mut impl Orders<Msg>) -> AfterMount<Model> {
     AfterMount::default()
 }
 
-async fn user_media() -> Result<Msg, Msg> {
+async fn user_media() -> Msg {
     let mut constraints = MediaStreamConstraints::new();
     constraints.video(&JsValue::from(true));
 
@@ -31,11 +31,11 @@ async fn user_media() -> Result<Msg, Msg> {
         .get_user_media_with_constraints(&constraints)
         .unwrap();
 
-    Ok(Msg::UserMedia(
+    Msg::UserMedia(
         JsFuture::from(media_stream_promise)
             .await
             .map(MediaStream::from),
-    ))
+    )
 }
 
 // ------ ------