From a71fff0c73f2ea632e6f4699ae46b9b6600bfeed Mon Sep 17 00:00:00 2001
From: Aria Minaei <aria.minaei@gmail.com>
Date: Sun, 27 Nov 2022 12:58:56 +0100
Subject: [PATCH] Don't expose PrismDerivation as a class

---
 packages/dataverse/src/derivations/prism/prism.test.ts | 4 ++--
 packages/dataverse/src/derivations/prism/prism.ts      | 3 +--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/packages/dataverse/src/derivations/prism/prism.test.ts b/packages/dataverse/src/derivations/prism/prism.test.ts
index ac30adb..27717eb 100644
--- a/packages/dataverse/src/derivations/prism/prism.test.ts
+++ b/packages/dataverse/src/derivations/prism/prism.test.ts
@@ -5,7 +5,7 @@ import Atom, {val} from '../../Atom'
 import Ticker from '../../Ticker'
 import type {$FixMe, $IntentionalAny} from '../../types'
 import iterateAndCountTicks from '../iterateAndCountTicks'
-import prism, {PrismDerivation} from './prism'
+import prism from './prism'
 
 describe('prism', () => {
   let ticker: Ticker
@@ -15,7 +15,7 @@ describe('prism', () => {
 
   it('should work', () => {
     const o = new Atom({foo: 'foo'})
-    const d = new PrismDerivation(() => {
+    const d = prism(() => {
       return val(o.pointer.foo) + 'boo'
     })
     expect(d.getValue()).toEqual('fooboo')
diff --git a/packages/dataverse/src/derivations/prism/prism.ts b/packages/dataverse/src/derivations/prism/prism.ts
index eb4c5d6..687daa8 100644
--- a/packages/dataverse/src/derivations/prism/prism.ts
+++ b/packages/dataverse/src/derivations/prism/prism.ts
@@ -20,7 +20,7 @@ type IDependent = (msgComingFrom: IDerivation<$IntentionalAny>) => void
 
 const voidFn = () => {}
 
-export class PrismDerivation<V> implements IDerivation<V> {
+class PrismDerivation<V> implements IDerivation<V> {
   protected _cacheOfDendencyValues: Map<IDerivation<unknown>, unknown> =
     new Map()
   protected _possiblyStaleDeps = new Set<IDerivation<unknown>>()
@@ -123,7 +123,6 @@ export class PrismDerivation<V> implements IDerivation<V> {
    *
    * @see removeDependent
    */
-  // TODO: document this better, what are dependents?
   addDependent(d: IDependent) {
     const hadDepsBefore = this._dependents.size > 0
     this._dependents.add(d)