source: trip-planner-front/node_modules/webpack/lib/json/JsonParser.js@ ceaed42

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const parseJson = require("json-parse-better-errors");
const Parser = require("../Parser");
const JsonExportsDependency = require("../dependencies/JsonExportsDependency");
const JsonData = require("./JsonData");

/** @typedef {import("../../declarations/plugins/JsonModulesPluginParser").JsonModulesPluginParserOptions} JsonModulesPluginParserOptions */
/** @typedef {import("../Parser").ParserState} ParserState */
/** @typedef {import("../Parser").PreparsedAst} PreparsedAst */

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 {JsonModulesPluginParserOptions["parse"]} */
                const parseFn =
                        typeof this.options.parse === "function" ? this.options.parse : parseJson;

                const data =
                        typeof source === "object"
                                ? source
                                : parseFn(source[0] === "\ufeff" ? source.slice(1) : source);

                state.module.buildInfo.jsonData = new JsonData(data);
                state.module.buildInfo.strict = true;
                state.module.buildMeta.exportsType = "default";
                state.module.buildMeta.defaultObject =
                        typeof data === "object" ? "redirect-warn" : false;
                state.module.addDependency(
                        new JsonExportsDependency(JsonExportsDependency.getExportsFromData(data))
                );
                return state;
        }
}

module.exports = JsonParser;