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app_vue/node_modules/webpack/lib/json/JsonParser.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const Parser = require("../Parser");
+const JsonExportsDependency = require("../dependencies/JsonExportsDependency");
+const memoize = require("../util/memoize");
+const JsonData = require("./JsonData");
+
+/** @typedef {import("../../declarations/plugins/JsonModulesPluginParser").JsonModulesPluginParserOptions} JsonModulesPluginParserOptions */
+/** @typedef {import("../Module").BuildInfo} BuildInfo */
+/** @typedef {import("../Module").BuildMeta} BuildMeta */
+/** @typedef {import("../Parser").ParserState} ParserState */
+/** @typedef {import("../Parser").PreparsedAst} PreparsedAst */
+/** @typedef {import("./JsonModulesPlugin").JsonValue} JsonValue */
+
+const getParseJson = memoize(() => require("json-parse-even-better-errors"));
+
+class JsonParser extends Parser {
+	/**
+	 * @param {JsonModulesPluginParserOptions} options parser options
+	 */
+	constructor(options) {
+		super();
+		this.options = options || {};
+	}
+
+	/**
+	 * @param {string | Buffer | PreparsedAst} source the source to parse
+	 * @param {ParserState} state the parser state
+	 * @returns {ParserState} the parser state
+	 */
+	parse(source, state) {
+		if (Buffer.isBuffer(source)) {
+			source = source.toString("utf-8");
+		}
+
+		/** @type {NonNullable<JsonModulesPluginParserOptions["parse"]>} */
+		const parseFn =
+			typeof this.options.parse === "function"
+				? this.options.parse
+				: getParseJson();
+		/** @type {Buffer | JsonValue | undefined} */
+		let data;
+		try {
+			data =
+				typeof source === "object"
+					? source
+					: 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 | JsonValue} */ (data));
+		const buildInfo = /** @type {BuildInfo} */ (state.module.buildInfo);
+		buildInfo.jsonData = jsonData;
+		buildInfo.strict = true;
+		const buildMeta = /** @type {BuildMeta} */ (state.module.buildMeta);
+		buildMeta.exportsType = "default";
+		buildMeta.defaultObject =
+			typeof data === "object" ? "redirect-warn" : false;
+		state.module.addDependency(
+			new JsonExportsDependency(
+				jsonData,
+				/** @type {number} */
+				(this.options.exportsDepth)
+			)
+		);
+		return state;
+	}
+}
+
+module.exports = JsonParser;