feat: refactoring project

node_modules/webpack/lib/json/JsonGenerator.js

@@ -9,12 +9,14 @@ const { RawSource } = require("webpack-sources");
 const ConcatenationScope = require("../ConcatenationScope");
 const { UsageState } = require("../ExportsInfo");
 const Generator = require("../Generator");
+const { JS_TYPES } = require("../ModuleSourceTypesConstants");
 const RuntimeGlobals = require("../RuntimeGlobals");
 
 /** @typedef {import("webpack-sources").Source} Source */
 /** @typedef {import("../ExportsInfo")} ExportsInfo */
 /** @typedef {import("../Generator").GenerateContext} GenerateContext */
 /** @typedef {import("../Module").ConcatenationBailoutReasonContext} ConcatenationBailoutReasonContext */
+/** @typedef {import("../Module").SourceTypes} SourceTypes */
 /** @typedef {import("../NormalModule")} NormalModule */
 /** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
 /** @typedef {import("./JsonData")} JsonData */
@@ -27,7 +29,7 @@ const RuntimeGlobals = require("../RuntimeGlobals");
 const stringifySafe = data => {
 	const stringified = JSON.stringify(data);
 	if (!stringified) {
-		return undefined; // Invalid JSON
+		return; // Invalid JSON
 	}
 
 	return stringified.replace(/\u2028|\u2029/g, str =>
@@ -53,22 +55,16 @@ const createObjectForExportsInfo = (data, exportsInfo, runtime) => {
 		if (used === UsageState.Unused) continue;
 
 		/** @type {RawJsonData} */
-		let value;
-		if (used === UsageState.OnlyPropertiesUsed && exportInfo.exportsInfo) {
-			value = createObjectForExportsInfo(
-				data[key],
-				exportInfo.exportsInfo,
-				runtime
-			);
-		} else {
-			value = data[key];
-		}
+		const value =
+			used === UsageState.OnlyPropertiesUsed && exportInfo.exportsInfo
+				? createObjectForExportsInfo(data[key], exportInfo.exportsInfo, runtime)
+				: data[key];
 
 		const name = /** @type {string} */ (exportInfo.getUsedName(key, runtime));
 		/** @type {Record<string, RawJsonData>} */ (reducedData)[name] = value;
 	}
 	if (isArray) {
-		let arrayLengthWhenUsed =
+		const arrayLengthWhenUsed =
 			exportsInfo.getReadOnlyExportInfo("length").getUsed(runtime) !==
 			UsageState.Unused
 				? data.length
@@ -109,15 +105,13 @@ const createObjectForExportsInfo = (data, exportsInfo, runtime) => {
 	return reducedData;
 };
 
-const TYPES = new Set(["javascript"]);
-
 class JsonGenerator extends Generator {
 	/**
 	 * @param {NormalModule} module fresh module
-	 * @returns {Set<string>} available types (do not mutate)
+	 * @returns {SourceTypes} available types (do not mutate)
 	 */
 	getTypes(module) {
-		return TYPES;
+		return JS_TYPES;
 	}
 
 	/**
@@ -147,7 +141,7 @@ class JsonGenerator extends Generator {
 	/**
 	 * @param {NormalModule} module module for which the code should be generated
 	 * @param {GenerateContext} generateContext context for generate
-	 * @returns {Source} generated code
+	 * @returns {Source | null} generated code
 	 */
 	generate(
 		module,
@@ -173,7 +167,7 @@ class JsonGenerator extends Generator {
 		}
 		const exportsInfo = moduleGraph.getExportsInfo(module);
 		/** @type {RawJsonData} */
-		let finalJson =
+		const finalJson =
 			typeof data === "object" &&
 			data &&
 			exportsInfo.otherExportsInfo.getUsed(runtime) === UsageState.Unused

node_modules/webpack/lib/json/JsonModulesPlugin.js

@@ -33,7 +33,6 @@ class JsonModulesPlugin {
 	 * Apply the plugin
 	 * @param {Compiler} compiler the compiler instance
 	 * @returns {void}
-	 *
 	 */
 	apply(compiler) {
 		compiler.hooks.compilation.tap(
@@ -48,9 +47,7 @@ class JsonModulesPlugin {
 					});
 				normalModuleFactory.hooks.createGenerator
 					.for(JSON_MODULE_TYPE)
-					.tap(PLUGIN_NAME, () => {
-						return new JsonGenerator();
-					});
+					.tap(PLUGIN_NAME, () => new JsonGenerator());
 			}
 		);
 	}

node_modules/webpack/lib/json/JsonParser.js

@@ -49,9 +49,11 @@ class JsonParser extends Parser {
 			data =
 				typeof source === "object"
 					? source
-					: parseFn(source[0] === "\ufeff" ? source.slice(1) : source);
-		} catch (e) {
-			throw new Error(`Cannot parse JSON: ${/** @type {Error} */ (e).message}`);
+					: parseFn(source[0] === "\uFEFF" ? source.slice(1) : source);
+		} catch (err) {
+			throw new Error(
+				`Cannot parse JSON: ${/** @type {Error} */ (err).message}`
+			);
 		}
 		const jsonData = new JsonData(/** @type {Buffer | RawJsonData} */ (data));
 		const buildInfo = /** @type {BuildInfo} */ (state.module.buildInfo);