From 7f3072ed7e016dff359439d7580403e36ad6b325 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Wed, 15 Oct 2025 18:40:19 +0200
Subject: feat(ecs): add EventMatch convenience fns for component events

---
 ecs/src/util.rs | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

(limited to 'ecs/src/util.rs')

diff --git a/ecs/src/util.rs b/ecs/src/util.rs
index c18fd49..27e9748 100644
--- a/ecs/src/util.rs
+++ b/ecs/src/util.rs
@@ -303,8 +303,15 @@ pub(crate) use gen_mask_64;
 macro_rules! impl_multiple {
     (
         $type: ident,
-        ($(impl$(<$($generic: tt$(: $bound: ident)?),*>)? _<$($type_param: ty),*>),*)
-        ($($ty_param_matcher: ident),*) => {
+        ($(
+            impl$(<$($generic: tt$(: $bound: ident)?),*>)?
+            _<$($lt_param: lifetime),*><$($type_param: ty),*>
+            $(($($extra_cb_arg: expr),*))?
+        ),*)
+        cb=(
+            type_params=($($ty_param_matcher: ident),*)
+            $(, $($extra_matcher: ident),+)?
+        ) => {
             $($item_tt: tt)*
         }
     ) => {
@@ -313,13 +320,17 @@ macro_rules! impl_multiple {
                 @(make_gen_item_macro)
                 _gen_multiple_impl_item,
                 ($($ty_param_matcher),*),
+                ($($($extra_matcher),+)?),
                 ($($item_tt)*)
             );
 
             $(
-                impl $(<$($generic$(: $bound)?,)*>)? $type<$($type_param),*>
+                impl $(<$($generic$(: $bound)?,)*>)? $type<$($lt_param,)* $($type_param),*>
                 {
-                    _gen_multiple_impl_item!($($type_param),*);
+                    _gen_multiple_impl_item!(
+                        type_params=($($type_param),*),
+                        $($($extra_cb_arg),*)?
+                    );
                 }
             )*
         };
@@ -329,11 +340,16 @@ macro_rules! impl_multiple {
         @(make_gen_item_macro)
         $name: ident,
         ($($ty_param_matcher: ident),*),
+        ($($extra_matcher: ident),*),
         ($($transcriber: tt)*)
     ) => {
         $crate::util::impl_multiple!(
             @(make_gen_item_macro)
-            ($), $name, ($($ty_param_matcher),*), ($($transcriber)*)
+            ($),
+            $name,
+            ($($ty_param_matcher),*),
+            ($($extra_matcher),*),
+            ($($transcriber)*)
         );
     };
 
@@ -342,11 +358,16 @@ macro_rules! impl_multiple {
         ($dollar: tt),
         $name: ident,
         ($($ty_param_matcher: ident),*),
+        ($($extra_matcher: ident),*),
         ($($transcriber: tt)*)
     ) => {
         $crate::util::impl_multiple!(
             @(make_gen_item_macro)
-            $name, ($($dollar$ty_param_matcher: ty),*) => {
+            $name,
+            (
+                type_params=($($dollar$ty_param_matcher: ty),*),
+                $($dollar$extra_matcher: expr),*
+            ) => {
                 $($transcriber)*
             }
         );
-- 
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