feat: Add JSONLanguage#visitorKeys

Release-As: 0.1.0

src/languages/json-language.js

@@ -9,6 +9,7 @@
 
 import { parse } from "@humanwhocodes/momoa";
 import { JSONSourceCode } from "./json-source-code.js";
+import { visitorKeys } from "@humanwhocodes/momoa";
 
 //-----------------------------------------------------------------------------
 // Types
@@ -59,6 +60,12 @@ export class JSONLanguage {
 	 */
 	#mode = "json";
 
+	/**
+	 * The visitor keys.
+	 * @type {Record<string, string[]>}
+	 */
+	visitorKeys = Object.fromEntries([...visitorKeys]);
+
 	/**
 	 * Creates a new instance.
 	 * @param {Object} options The options to use for this instance.

tests/languages/json-language.test.js

@@ -15,6 +15,14 @@ import assert from "node:assert";
 //-----------------------------------------------------------------------------
 
 describe("JSONLanguage", () => {
+	describe("visitorKeys", () => {
+		it("should have visitorKeys property", () => {
+			const language = new JSONLanguage({ mode: "json" });
+
+			assert.deepStrictEqual(language.visitorKeys.Document, ["body"]);
+		});
+	});
+
 	describe("parse()", () => {
 		it("should not parse jsonc by default", () => {
 			const language = new JSONLanguage({ mode: "json" });