🚚 refactor: Rename insert_case2 to insert_case1.

Author: make-github-pseudonymous-again

src/index.js

@@ -19,7 +19,7 @@ export {default as sibling} from './family/sibling.js';
 export {default as uncle} from './family/uncle.js';
 export {default as insert} from './insertion/insert.js';
 export {default as insert_case0} from './insertion/insert_case0.js';
-export {default as insert_case2} from './insertion/insert_case2.js';
+export {default as insert_case1} from './insertion/insert_case1.js';
 export {default as insert_case3} from './insertion/insert_case3.js';
 export {default as insert_case4} from './insertion/insert_case4.js';
 export {default as insert_case5} from './insertion/insert_case5.js';

src/insertion/insert_case0.js

@@ -2,7 +2,7 @@ import assert from 'assert';
 import Node from '../types/Node.js';
 import BLACK from '../color/BLACK.js';
 import RED from '../color/RED.js';
-import insert_case2 from './insert_case2.js';
+import insert_case1 from './insert_case1.js';
 
 /**
  * Preconditions:
@@ -24,7 +24,7 @@ const insert_case0 = (n) => {
 	 *     -   -
 	 */
 	if (n.parent === null) n._color = BLACK;
-	else insert_case2(n);
+	else insert_case1(n);
 };
 
 export default insert_case0;

src/insertion/insert_case2.js renamed to src/insertion/insert_case1.js

@@ -12,7 +12,7 @@ import insert_case3 from './insert_case3.js';
  *
  * @param {Node} n - The input node.
  */
-const insert_case2 = (n) => {
+const insert_case1 = (n) => {
 	assert(n instanceof Node);
 	assert(n._color === RED);
 	assert(n.left === null || n.left._color === BLACK);
@@ -33,4 +33,4 @@ const insert_case2 = (n) => {
 	insert_case3(n);
 };
 
-export default insert_case2;
+export default insert_case1;

src/types/RedBlackTree.js

@@ -4,7 +4,7 @@ import BLACK from '../color/BLACK.js';
 import RED from '../color/RED.js';
 import predecessor from '../family/predecessor.js';
 import insert from '../insertion/insert.js';
-import insert_case2 from '../insertion/insert_case2.js';
+import insert_case1 from '../insertion/insert_case1.js';
 import delete_one_child from '../deletion/delete_one_child.js';
 import delete_no_child from '../deletion/delete_no_child.js';
 import search from '../search/search.js';
@@ -49,7 +49,7 @@ export default class RedBlackTree {
 		} else {
 			const node = new Node(RED, key);
 			insert(this.compare, this.root, node);
-			insert_case2(node);
+			insert_case1(node);
 		}
 	}