From d40bcd0c7246733a94ce93ca02177be5fea6dcf1 Mon Sep 17 00:00:00 2001
From: Ukendio <ukendio@gmail.com>
Date: Fri, 4 Jul 2025 01:44:15 +0200
Subject: [PATCH] Fix benchmark of remove

---
 CHANGELOG.md                     | 14 ++++++++++++++
 benches/visual/remove.bench.luau |  9 +++++----
 jecs.luau                        | 18 ++++++++++++++++--
 test/tests.luau                  |  4 ----
 4 files changed, 35 insertions(+), 10 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b880f62..6962031 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 ## Unreleased
 
+### Added
+- `jecs.Exclusive` trait for making exclusive relationships.
+
+### Changed
+- `jecs.Child` to be an exclusive relationship, which means you can only have one `ChildOf` pair on an entity.
+
+## 0.7.2
+### Added
+- `jecs.entity_index_try_get_fast` back as to not break the observer addon.
+
+### Fixed
+- A linting problem with the types for `quer:with` and `query:without`.
+
+
 ## 0.7.0
 
 ### Added
diff --git a/benches/visual/remove.bench.luau b/benches/visual/remove.bench.luau
index b62a64b..72b94fa 100755
--- a/benches/visual/remove.bench.luau
+++ b/benches/visual/remove.bench.luau
@@ -35,16 +35,17 @@ return {
 		Mirror = function()
 			local m = mcs:entity()
 			for i = 1, 100 do
-				mcs:add(m, pair(E4, E4))
-				mcs:add(m, pair(E4, E4))
+				mcs:add(m, pair(E2, E3))
+				mcs:remove(m, pair(E2, E3))
+				mcs:add(m, pair(E2, E4))
 			end
 		end,
 
 		Jecs = function()
 			local j = ecs:entity()
 			for i = 1, 100 do
-				ecs:add(j, pair(C4, C4))
-				ecs:add(j, pair(C4, C4))
+				ecs:add(j, pair(C2, C3))
+				ecs:add(j, pair(C2, C4))
 			end
 		end,
 	},
diff --git a/jecs.luau b/jecs.luau
index d26384b..ba8cf3a 100755
--- a/jecs.luau
+++ b/jecs.luau
@@ -311,9 +311,9 @@ end
 
 local function entity_index_try_get_any(
 	entity_index: EntityIndex,
-	entity: number
+	entity: Entity
 ): Record?
-	local r = entity_index.sparse_array[ECS_ENTITY_T_LO(entity)]
+	local r = entity_index.sparse_array[ECS_ENTITY_T_LO(entity::number)]
 
 	if not r or r.dense == 0 then
 		return nil
@@ -336,6 +336,20 @@ local function entity_index_try_get(entity_index: EntityIndex, entity: Entity):
 	return r
 end
 
+local function entity_index_try_get_fast(entity_index: EntityIndex, entity: Entity): Record?
+	local r = entity_index_try_get_any(entity_index, entity)
+	if r then
+		local r_dense = r.dense
+		-- if r_dense > entity_index.alive_count then
+		-- 	return nil
+		-- end
+		if entity_index.dense_array[r_dense] ~= entity then
+			return nil
+		end
+	end
+	return r
+end
+
 local function entity_index_is_alive<T>(entity_index: EntityIndex, entity: Entity<T>): boolean
 	return entity_index_try_get(entity_index, entity) ~= nil
 end
diff --git a/test/tests.luau b/test/tests.luau
index 005d785..3f9ceb9 100755
--- a/test/tests.luau
+++ b/test/tests.luau
@@ -24,10 +24,6 @@ type Id<T=unknown> = jecs.Id<T>
 local entity_visualiser = require("@tools/entity_visualiser")
 local dwi = entity_visualiser.stringify
 
-TEST("exclusive", function()
-		-- print(jecs.entity_index_try_get(world.entity_index, e).archetype.type)
-end)
-
 TEST("bulk", function()
 	local world = jecs.world()
 	local A = world:component()