Simplified Handler::new

src/commands/set_master_pass.rs

@@ -7,14 +7,13 @@ async fn get_master_pass(
     msg: Message,
     db: DatabaseConnection,
     dialogue: MainDialogue,
-    master_password: String,
+    master_pass: String,
 ) -> crate::Result<()> {
     dialogue.exit().await?;
     let user_id = msg.from().ok_or(NoUserInfo)?.id.0;
-    let model = spawn_blocking(move || {
-        master_pass::ActiveModel::from_unencrypted(user_id, &master_password)
-    })
-    .await?;
+    let model =
+        spawn_blocking(move || master_pass::ActiveModel::from_unencrypted(user_id, &master_pass))
+            .await?;
     model.insert(&db).await?;
     bot.send_message(msg.chat.id, "Success")
         .reply_markup(deletion_markup())
@@ -41,7 +40,9 @@ pub async fn set_master_pass(
         .await?;
     dialogue
         .update(State::GetNewMasterPass(Handler::new(
-            get_master_pass,
+            |bot, msg, db, dialogue, master_pass| {
+                Box::pin(get_master_pass(bot, msg, db, dialogue, master_pass))
+            },
             &previous,
         )))
         .await?;

src/macros.rs

@@ -12,7 +12,7 @@ macro_rules! handler {
             let previous = bot.send_message(msg.chat.id, $message).await?;
             dialogue
                 .update($next_state(Handler::new(
-                    move |bot, msg, db, dialogue, param| $next_func(bot, msg, db, dialogue, $($param,)* param),
+                    move |bot, msg, db, dialogue, param| Box::pin($next_func(bot, msg, db, dialogue, $($param,)* param)),
                     &previous,
                 )))
                 .await?;
@@ -45,7 +45,7 @@ macro_rules! ask_name_handler {
                 .await?;
             dialogue
                 .update(State::GetExistingName(Handler::new(
-                    $next_func,
+                    move |bot, msg, db, dialogue, param| Box::pin($next_func(bot, msg, db, dialogue, $($param,)* param)),
                     &previous,
                 )))
                 .await?;

src/state/handler.rs

@@ -1,6 +1,6 @@
 use crate::prelude::*;
 use futures::future::BoxFuture;
-use std::{future::Future, sync::Arc};
+use std::sync::Arc;
 use teloxide::types::MessageId;
 use tokio::sync::Mutex;
 
@@ -43,17 +43,20 @@ pub type PackagedHandler<T> = Arc<Mutex<Handler<T>>>;
 impl<T> Handler<T> {
     /// Convinience method to convert a simple async function and a previous message into PackagedHandler
     #[inline]
-    pub fn new<H, F>(f: H, previous: impl Into<MessageIds>) -> PackagedHandler<T>
+    pub fn new<H>(f: H, previous: impl Into<MessageIds>) -> PackagedHandler<T>
     where
-        H: FnOnce(Throttle<Bot>, Message, DatabaseConnection, MainDialogue, T) -> F
+        H: FnOnce(
+                Throttle<Bot>,
+                Message,
+                DatabaseConnection,
+                MainDialogue,
+                T,
+            ) -> BoxFuture<'static, crate::Result<()>>
             + Send
             + 'static,
-        F: Future<Output = crate::Result<()>> + Send + 'static,
     {
         let handler = Self {
-            func: Some(Box::new(|bot, msg, db, dialogue, val| {
-                Box::pin(f(bot, msg, db, dialogue, val))
-            })),
+            func: Some(Box::new(f)),
             previous: previous.into(),
         };
         Arc::new(Mutex::new(handler))