56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const parseJson = require("json-parse-even-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);
|
||
|
|
const jsonData = new JsonData(data);
|
||
|
|
state.module.buildInfo.jsonData = jsonData;
|
||
|
|
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(jsonData));
|
||
|
|
return state;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = JsonParser;
|