[v9] refactor: streamline core, harden exports (#2583)

packages/fiber/src/core/events.ts

@@ -1,7 +1,6 @@
 import * as THREE from 'three'
-import { ContinuousEventPriority, DiscreteEventPriority, DefaultEventPriority } from 'react-reconciler/constants'
-import { Camera, getRootState } from './utils'
-import type { Instance } from './renderer'
+import { type Camera, getRootState } from './utils'
+import type { Instance } from './reconciler'
 import type { RootState, RootStore } from './store'
 
 export interface Intersection extends THREE.Intersection {
@@ -94,35 +93,6 @@ function makeId(event: Intersection) {
   return (event.eventObject || event.object).uuid + '/' + event.index + event.instanceId
 }
 
-// https://github.com/facebook/react/tree/main/packages/react-reconciler#getcurrenteventpriority
-// Gives React a clue as to how import the current interaction is
-export function getEventPriority() {
-  // Get a handle to the current global scope in window and worker contexts if able
-  // https://github.com/pmndrs/react-three-fiber/pull/2493
-  const globalScope = (typeof self !== 'undefined' && self) || (typeof window !== 'undefined' && window)
-  if (!globalScope) return DefaultEventPriority
-
-  const name = globalScope.event?.type
-  switch (name) {
-    case 'click':
-    case 'contextmenu':
-    case 'dblclick':
-    case 'pointercancel':
-    case 'pointerdown':
-    case 'pointerup':
-      return DiscreteEventPriority
-    case 'pointermove':
-    case 'pointerout':
-    case 'pointerover':
-    case 'pointerenter':
-    case 'pointerleave':
-    case 'wheel':
-      return ContinuousEventPriority
-    default:
-      return DefaultEventPriority
-  }
-}
-
 /**
  * Release pointer captures.
  * This is called by releasePointerCapture in the API, and when an object is removed.

packages/fiber/src/core/hooks.tsx

@@ -1,11 +1,11 @@
 import * as THREE from 'three'
 import * as React from 'react'
-import { GLTF } from 'three/examples/jsm/loaders/GLTFLoader'
+import type { GLTF } from 'three/examples/jsm/loaders/GLTFLoader'
 import { suspend, preload, clear } from 'suspend-react'
 import { context, RootState, RenderCallback, UpdateCallback, StageTypes } from './store'
 import { buildGraph, ObjectMap, is, useMutableCallback, useIsomorphicLayoutEffect } from './utils'
 import { Stages } from './stages'
-import { Instance } from './renderer'
+import type { Instance } from './reconciler'
 
 export interface Loader<T> extends THREE.Loader {
   load(