Remove unused code (#13)

Author: SamChou19815

sam-react/src/react-dom.ts

@@ -1,34 +1,12 @@
 /** The module bootstraps a react app. */
 
-import { ReactElement, Component, StatefulComponent } from './types';
+import { ReactElement, Component } from './types';
 import { runEffects } from './renderer-runtime';
 import { registerJobRunner, getScheduler } from './react-scheduler';
 import { instantiateComponent, mountComponent, updateComponent } from './component-lifecyles';
 
 let rootComponent: Component | null = null;
 
-const patchComponentTreeInplace = (
-  rootNode: Component,
-  updatedComponent: StatefulComponent,
-  oldDOMNode: HTMLElement,
-  newDOMNode: HTMLElement
-): void => {
-  if (rootNode.type === 'functional') {
-    if (rootNode.renderedComponent === updatedComponent) {
-      rootNode.realDOMNode = newDOMNode;
-    }
-    patchComponentTreeInplace(rootNode.renderedComponent, updatedComponent, oldDOMNode, newDOMNode);
-    return;
-  }
-  for (let i = 0; i < rootNode.children.length; i += 1) {
-    const child = rootNode.children[i];
-    if (child === updatedComponent) {
-      rootNode.realDOMNode.replaceChild(newDOMNode, oldDOMNode);
-      break;
-    }
-  }
-};
-
 registerJobRunner((job) => {
   if (rootComponent === null) {
     throw new Error();

sam-react/src/renderer-runtime.ts

@@ -39,9 +39,6 @@ export const useState = (defaultValue: any): UseStateReturns => {
 };
 
 export const useEffect = (effect: () => void): void => {
-  if (currentComponent === null) {
-    throw new Error();
-  }
   globalEffectQueue.push(effect);
 };