58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Yuta Hiroto @hiroppy
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*/
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"use strict";
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const Parser = require("../Parser");
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/** @typedef {import("../../declarations/WebpackOptions").AssetParserOptions} AssetParserOptions */
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/** @typedef {import("../Parser").ParserState} ParserState */
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/** @typedef {import("../Parser").PreparsedAst} PreparsedAst */
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class AssetParser extends Parser {
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/**
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* @param {AssetParserOptions["dataUrlCondition"] | boolean} dataUrlCondition condition for inlining as DataUrl
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*/
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constructor(dataUrlCondition) {
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super();
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this.dataUrlCondition = dataUrlCondition;
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}
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/**
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* @param {string | Buffer | PreparsedAst} source the source to parse
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* @param {ParserState} state the parser state
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* @returns {ParserState} the parser state
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*/
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parse(source, state) {
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if (typeof source === "object" && !Buffer.isBuffer(source)) {
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throw new Error("AssetParser doesn't accept preparsed AST");
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}
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state.module.buildInfo.strict = true;
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state.module.buildMeta.exportsType = "default";
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state.module.buildMeta.defaultObject = false;
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if (typeof this.dataUrlCondition === "function") {
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state.module.buildInfo.dataUrl = this.dataUrlCondition(source, {
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filename: state.module.matchResource || state.module.resource,
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module: state.module
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});
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} else if (typeof this.dataUrlCondition === "boolean") {
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state.module.buildInfo.dataUrl = this.dataUrlCondition;
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} else if (
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this.dataUrlCondition &&
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typeof this.dataUrlCondition === "object"
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) {
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state.module.buildInfo.dataUrl =
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Buffer.byteLength(source) <= this.dataUrlCondition.maxSize;
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} else {
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throw new Error("Unexpected dataUrlCondition type");
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}
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return state;
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}
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}
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module.exports = AssetParser;
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