feat(lib/react/jsx-runtime): switch to objects for storage

lib/react/src/jsx-runtime/_internal.ts

@@ -3,9 +3,9 @@ import type { AfterJSXCallback, BeforeJSXCallback, InsteadJSXCallback } from '.'
 
 export const jPatches = new Map<
     ElementType | keyof JSX.IntrinsicElements,
-    [
-        before?: Set<BeforeJSXCallback<any>>,
-        after?: Set<AfterJSXCallback<any>>,
-        instead?: Set<InsteadJSXCallback<any>>,
-    ]
+    {
+        before?: Set<BeforeJSXCallback<any>>
+        after?: Set<AfterJSXCallback<any>>
+        instead?: Set<InsteadJSXCallback<any>>
+    }
 >()

lib/react/src/jsx-runtime/index.ts

@@ -38,11 +38,11 @@ export function afterJSX<E extends ElementType>(
 ) {
     let patches = jPatches.get(type)
     if (!patches) {
-        patches = [undefined, new Set(), undefined]
+        patches = {}
         jPatches.set(type, patches)
-    } else if (!patches[1]) patches[1] = new Set()
+    }
 
-    const set = patches[1]!
+    const set = (patches.after ??= new Set())
 
     set.add(patch as AfterJSXCallback<E>)
     return () => {
@@ -65,11 +65,11 @@ export function beforeJSX<E extends ElementType>(
 ) {
     let patches = jPatches.get(type)
     if (!patches) {
-        patches = [new Set(), undefined, undefined]
+        patches = {}
         jPatches.set(type, patches)
-    } else if (!patches[0]) patches[0] = new Set()
+    }
 
-    const set = patches[0]!
+    const set = (patches.before ??= new Set())
 
     set.add(patch as BeforeJSXCallback<E>)
     return () => {
@@ -92,11 +92,11 @@ export function insteadJSX<E extends ElementType>(
 ) {
     let patches = jPatches.get(type)
     if (!patches) {
-        patches = [undefined, undefined, new Set()]
+        patches = {}
         jPatches.set(type, patches)
-    } else if (!patches[2]) patches[2] = new Set()
+    }
 
-    const set = patches[2]!
+    const set = (patches.instead ??= new Set())
 
     set.add(patch as InsteadJSXCallback<E>)
     return () => {
@@ -108,6 +108,7 @@ export function insteadJSX<E extends ElementType>(
 
 function attemptCleanup(type: ElementType) {
     const patches = jPatches.get(type)!
-    if (patches[0]?.size || patches[1]?.size || patches[2]?.size) return
+    if (patches.before?.size || patches.after?.size || patches.instead?.size)
+        return
     jPatches.delete(type)
 }

lib/react/src/jsx-runtime/patches.ts

@@ -14,7 +14,7 @@ const patch = (
     const patches = jPatches.get(type)
     if (!patches) return Reflect.apply(orig, ReactJSXRuntime, args)
 
-    const [before, after, instead] = patches
+    const { before, after, instead } = patches
 
     if (before) for (const cb of before) args = cb(args)