244 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			244 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /*
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| 	MIT License http://www.opensource.org/licenses/mit-license.php
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| 	Author Tobias Koppers @sokra
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| */
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| 
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| "use strict";
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| 
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| const WebpackError = require("../WebpackError");
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| const { getImportAttributes } = require("../javascript/JavascriptParser");
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| const InnerGraph = require("../optimize/InnerGraph");
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| const ConstDependency = require("./ConstDependency");
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| const HarmonyExportExpressionDependency = require("./HarmonyExportExpressionDependency");
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| const HarmonyExportHeaderDependency = require("./HarmonyExportHeaderDependency");
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| const HarmonyExportImportedSpecifierDependency = require("./HarmonyExportImportedSpecifierDependency");
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| const HarmonyExportSpecifierDependency = require("./HarmonyExportSpecifierDependency");
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| const { ExportPresenceModes } = require("./HarmonyImportDependency");
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| const {
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| 	getImportMode,
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| 	harmonySpecifierTag
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| } = require("./HarmonyImportDependencyParserPlugin");
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| const HarmonyImportSideEffectDependency = require("./HarmonyImportSideEffectDependency");
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| 
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| /** @typedef {import("../Dependency").DependencyLocation} DependencyLocation */
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| /** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
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| /** @typedef {import("../javascript/JavascriptParser").ClassDeclaration} ClassDeclaration */
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| /** @typedef {import("../javascript/JavascriptParser").FunctionDeclaration} FunctionDeclaration */
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| /** @typedef {import("../javascript/JavascriptParser").Range} Range */
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| 
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| const { HarmonyStarExportsList } = HarmonyExportImportedSpecifierDependency;
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| 
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| const PLUGIN_NAME = "HarmonyExportDependencyParserPlugin";
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| 
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| module.exports = class HarmonyExportDependencyParserPlugin {
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| 	/**
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| 	 * @param {import("../../declarations/WebpackOptions").JavascriptParserOptions} options options
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| 	 */
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| 	constructor(options) {
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| 		this.exportPresenceMode =
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| 			options.reexportExportsPresence !== undefined
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| 				? ExportPresenceModes.fromUserOption(options.reexportExportsPresence)
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| 				: options.exportsPresence !== undefined
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| 					? ExportPresenceModes.fromUserOption(options.exportsPresence)
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| 					: options.strictExportPresence
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| 						? ExportPresenceModes.ERROR
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| 						: ExportPresenceModes.AUTO;
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| 		this.deferImport = options.deferImport;
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| 	}
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| 
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| 	/**
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| 	 * @param {JavascriptParser} parser the parser
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| 	 * @returns {void}
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| 	 */
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| 	apply(parser) {
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| 		const { exportPresenceMode } = this;
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| 		parser.hooks.export.tap(PLUGIN_NAME, (statement) => {
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| 			const dep = new HarmonyExportHeaderDependency(
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| 				/** @type {Range | false} */ (
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| 					statement.declaration && statement.declaration.range
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| 				),
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| 				/** @type {Range} */ (statement.range)
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| 			);
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| 			dep.loc = Object.create(
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| 				/** @type {DependencyLocation} */ (statement.loc)
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| 			);
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| 			dep.loc.index = -1;
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| 			parser.state.module.addPresentationalDependency(dep);
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| 			return true;
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| 		});
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| 		parser.hooks.exportImport.tap(PLUGIN_NAME, (statement, source) => {
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| 			parser.state.lastHarmonyImportOrder =
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| 				(parser.state.lastHarmonyImportOrder || 0) + 1;
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| 			const clearDep = new ConstDependency(
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| 				"",
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| 				/** @type {Range} */ (statement.range)
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| 			);
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| 			clearDep.loc = /** @type {DependencyLocation} */ (statement.loc);
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| 			clearDep.loc.index = -1;
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| 			parser.state.module.addPresentationalDependency(clearDep);
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| 			let defer = false;
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| 			if (this.deferImport) {
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| 				({ defer } = getImportMode(parser, statement));
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| 				if (defer) {
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| 					const error = new WebpackError(
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| 						"Deferred re-export (`export defer * as namespace from '...'`) is not a part of the Import Defer proposal.\nUse the following code instead:\n    import defer * as namespace from '...';\n    export { namespace };"
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| 					);
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| 					error.loc = statement.loc || undefined;
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| 					parser.state.current.addError(error);
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| 				}
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| 			}
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| 			const sideEffectDep = new HarmonyImportSideEffectDependency(
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| 				/** @type {string} */ (source),
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| 				parser.state.lastHarmonyImportOrder,
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| 				getImportAttributes(statement),
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| 				defer
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| 			);
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| 			sideEffectDep.loc = Object.create(
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| 				/** @type {DependencyLocation} */ (statement.loc)
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| 			);
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| 			sideEffectDep.loc.index = -1;
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| 			parser.state.current.addDependency(sideEffectDep);
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| 			return true;
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| 		});
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| 		parser.hooks.exportExpression.tap(PLUGIN_NAME, (statement, node) => {
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| 			const isFunctionDeclaration = node.type === "FunctionDeclaration";
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| 			const exprRange = /** @type {Range} */ (node.range);
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| 			const statementRange = /** @type {Range} */ (statement.range);
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| 			const comments = parser.getComments([statementRange[0], exprRange[0]]);
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| 			const dep = new HarmonyExportExpressionDependency(
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| 				exprRange,
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| 				statementRange,
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| 				comments
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| 					.map((c) => {
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| 						switch (c.type) {
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| 							case "Block":
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| 								return `/*${c.value}*/`;
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| 							case "Line":
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| 								return `//${c.value}\n`;
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| 						}
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| 						return "";
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| 					})
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| 					.join(""),
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| 				node.type.endsWith("Declaration") &&
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| 				/** @type {FunctionDeclaration | ClassDeclaration} */ (node).id
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| 					? /** @type {FunctionDeclaration | ClassDeclaration} */
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| 						(node).id.name
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| 					: isFunctionDeclaration
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| 						? {
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| 								range: [
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| 									exprRange[0],
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| 									node.params.length > 0
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| 										? /** @type {Range} */ (node.params[0].range)[0]
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| 										: /** @type {Range} */ (node.body.range)[0]
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| 								],
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| 								prefix: `${node.async ? "async " : ""}function${
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| 									node.generator ? "*" : ""
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| 								} `,
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| 								suffix: `(${node.params.length > 0 ? "" : ") "}`
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| 							}
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| 						: undefined
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| 			);
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| 			dep.loc = Object.create(
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| 				/** @type {DependencyLocation} */ (statement.loc)
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| 			);
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| 			dep.loc.index = -1;
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| 			parser.state.current.addDependency(dep);
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| 			InnerGraph.addVariableUsage(
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| 				parser,
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| 				node.type.endsWith("Declaration") &&
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| 					/** @type {FunctionDeclaration | ClassDeclaration} */ (node).id
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| 					? /** @type {FunctionDeclaration | ClassDeclaration} */ (node).id.name
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| 					: "*default*",
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| 				"default"
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| 			);
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| 			return true;
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| 		});
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| 		parser.hooks.exportSpecifier.tap(
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| 			PLUGIN_NAME,
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| 			(statement, id, name, idx) => {
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| 				const settings = parser.getTagData(id, harmonySpecifierTag);
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| 				const harmonyNamedExports = (parser.state.harmonyNamedExports =
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| 					parser.state.harmonyNamedExports || new Set());
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| 				harmonyNamedExports.add(name);
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| 				InnerGraph.addVariableUsage(parser, id, name);
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| 				const dep = settings
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| 					? new HarmonyExportImportedSpecifierDependency(
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| 							settings.source,
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| 							settings.sourceOrder,
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| 							settings.ids,
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| 							name,
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| 							harmonyNamedExports,
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| 							null,
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| 							exportPresenceMode,
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| 							null,
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| 							settings.attributes,
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| 							settings.defer
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| 						)
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| 					: new HarmonyExportSpecifierDependency(id, name);
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| 				dep.loc = Object.create(
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| 					/** @type {DependencyLocation} */ (statement.loc)
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| 				);
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| 				dep.loc.index = idx;
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| 				const isAsiSafe = !parser.isAsiPosition(
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| 					/** @type {Range} */
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| 					(statement.range)[0]
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| 				);
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| 				if (!isAsiSafe) {
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| 					parser.setAsiPosition(/** @type {Range} */ (statement.range)[1]);
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| 				}
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| 				parser.state.current.addDependency(dep);
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| 				return true;
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| 			}
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| 		);
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| 		parser.hooks.exportImportSpecifier.tap(
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| 			PLUGIN_NAME,
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| 			(statement, source, id, name, idx) => {
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| 				const harmonyNamedExports = (parser.state.harmonyNamedExports =
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| 					parser.state.harmonyNamedExports || new Set());
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| 				/** @type {InstanceType<HarmonyStarExportsList> | null} */
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| 				let harmonyStarExports = null;
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| 				if (name) {
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| 					harmonyNamedExports.add(name);
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| 				} else {
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| 					harmonyStarExports = parser.state.harmonyStarExports =
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| 						parser.state.harmonyStarExports || new HarmonyStarExportsList();
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| 				}
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| 				const attributes = getImportAttributes(statement);
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| 				const defer = this.deferImport
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| 					? getImportMode(parser, statement).defer
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| 					: false;
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| 				const dep = new HarmonyExportImportedSpecifierDependency(
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| 					/** @type {string} */
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| 					(source),
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| 					parser.state.lastHarmonyImportOrder,
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| 					id ? [id] : [],
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| 					name,
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| 					harmonyNamedExports,
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| 					// eslint-disable-next-line unicorn/prefer-spread
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| 					harmonyStarExports && harmonyStarExports.slice(),
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| 					exportPresenceMode,
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| 					harmonyStarExports,
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| 					attributes,
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| 					defer
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| 				);
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| 				if (harmonyStarExports) {
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| 					harmonyStarExports.push(dep);
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| 				}
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| 				dep.loc = Object.create(
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| 					/** @type {DependencyLocation} */ (statement.loc)
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| 				);
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| 				dep.loc.index = idx;
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| 				const isAsiSafe = !parser.isAsiPosition(
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| 					/** @type {Range} */
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| 					(statement.range)[0]
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| 				);
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| 				if (!isAsiSafe) {
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| 					parser.setAsiPosition(/** @type {Range} */ (statement.range)[1]);
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| 				}
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| 				parser.state.current.addDependency(dep);
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| 				return true;
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| 			}
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| 		);
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| 	}
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| };
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