From 3861439c499313bc3c40eaf77678702b02804f12 Mon Sep 17 00:00:00 2001
From: unspeaker <hora.nqma@protonmail.com>
Date: Thu, 24 Apr 2025 19:33:05 +0300
Subject: [PATCH] feat(input): add defcom! macro

---
 input/src/command.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/input/src/command.rs b/input/src/command.rs
index 23b2464..d15f78a 100644
--- a/input/src/command.rs
+++ b/input/src/command.rs
@@ -1,4 +1,18 @@
 use crate::*;
+
+#[macro_export] macro_rules! defcom {
+    (|$self:ident, $app:ident:$App:ty| $($Command:ident { $(
+        $Variant:ident $(($($param:ident: $Param:ty),+))? => $expr:expr
+    )* $(,)? })*) => {
+        $(#[derive(Clone, Debug)] pub enum $Command {
+            $($Variant $(($($Param),+))?),*
+        })*
+        $(command!(|$self: $Command, $app: $App|match $self {
+            $($Command::$Variant $(($($param),+))? => $expr),*
+        });)*
+    }
+}
+
 #[macro_export] macro_rules! command {
     ($(<$($l:lifetime),+>)?|$self:ident:$Command:ty,$state:ident:$State:ty|$handler:expr) => {
         impl$(<$($l),+>)? Command<$State> for $Command {
@@ -8,6 +22,7 @@ use crate::*;
         }
     };
 }
+
 pub trait Command<S>: Send + Sync + Sized {
     fn execute (self, state: &mut S) -> Perhaps<Self>;
     fn delegate <T> (self, state: &mut S, wrap: impl Fn(Self)->T) -> Perhaps<T>
@@ -16,6 +31,7 @@ pub trait Command<S>: Send + Sync + Sized {
         Ok(self.execute(state)?.map(wrap))
     }
 }
+
 impl<S, T: Command<S>> Command<S> for Option<T> {
     fn execute (self, _: &mut S) -> Perhaps<Self> {
         Ok(None)