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node_modules/webpack/lib/asset/AssetParser.js

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