9.20/4 我也不知道改啥了

admin/node_modules/estree-walker/src/walker.js

@@ -0,0 +1,61 @@
+// @ts-check
+/** @typedef { import('estree').BaseNode} BaseNode */
+
+/** @typedef {{
+	skip: () => void;
+	remove: () => void;
+	replace: (node: BaseNode) => void;
+}} WalkerContext */
+
+export class WalkerBase {
+	constructor() {
+		/** @type {boolean} */
+		this.should_skip = false;
+
+		/** @type {boolean} */
+		this.should_remove = false;
+
+		/** @type {BaseNode | null} */
+		this.replacement = null;
+
+		/** @type {WalkerContext} */
+		this.context = {
+			skip: () => (this.should_skip = true),
+			remove: () => (this.should_remove = true),
+			replace: (node) => (this.replacement = node)
+		};
+	}
+
+	/**
+	 *
+	 * @param {any} parent
+	 * @param {string} prop
+	 * @param {number} index
+	 * @param {BaseNode} node
+	 */
+	replace(parent, prop, index, node) {
+		if (parent) {
+			if (index !== null) {
+				parent[prop][index] = node;
+			} else {
+				parent[prop] = node;
+			}
+		}
+	}
+
+	/**
+	 *
+	 * @param {any} parent
+	 * @param {string} prop
+	 * @param {number} index
+	 */
+	remove(parent, prop, index) {
+		if (parent) {
+			if (index !== null) {
+				parent[prop].splice(index, 1);
+			} else {
+				delete parent[prop];
+			}
+		}
+	}
+}