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app_vue/node_modules/webpack/lib/dependencies/ImportParserPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const AsyncDependenciesBlock = require("../AsyncDependenciesBlock");
+const CommentCompilationWarning = require("../CommentCompilationWarning");
+const UnsupportedFeatureWarning = require("../UnsupportedFeatureWarning");
+const { getImportAttributes } = require("../javascript/JavascriptParser");
+const ContextDependencyHelpers = require("./ContextDependencyHelpers");
+const ImportContextDependency = require("./ImportContextDependency");
+const ImportDependency = require("./ImportDependency");
+const ImportEagerDependency = require("./ImportEagerDependency");
+const ImportWeakDependency = require("./ImportWeakDependency");
+
+/** @typedef {import("../../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
+/** @typedef {import("../ChunkGroup").RawChunkGroupOptions} RawChunkGroupOptions */
+/** @typedef {import("../ContextModule").ContextMode} ContextMode */
+/** @typedef {import("../Dependency").DependencyLocation} DependencyLocation */
+/** @typedef {import("../Module").BuildMeta} BuildMeta */
+/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
+/** @typedef {import("../javascript/JavascriptParser").ImportExpression} ImportExpression */
+/** @typedef {import("../javascript/JavascriptParser").Range} Range */
+
+class ImportParserPlugin {
+	/**
+	 * @param {JavascriptParserOptions} options options
+	 */
+	constructor(options) {
+		this.options = options;
+	}
+
+	/**
+	 * @param {JavascriptParser} parser the parser
+	 * @returns {void}
+	 */
+	apply(parser) {
+		/**
+		 * @template T
+		 * @param {Iterable<T>} enumerable enumerable
+		 * @returns {T[][]} array of array
+		 */
+		const exportsFromEnumerable = enumerable =>
+			Array.from(enumerable, e => [e]);
+		parser.hooks.importCall.tap("ImportParserPlugin", expr => {
+			const param = parser.evaluateExpression(expr.source);
+
+			let chunkName = null;
+			let mode = /** @type {ContextMode} */ (this.options.dynamicImportMode);
+			let include = null;
+			let exclude = null;
+			/** @type {string[][] | null} */
+			let exports = null;
+			/** @type {RawChunkGroupOptions} */
+			const groupOptions = {};
+
+			const {
+				dynamicImportPreload,
+				dynamicImportPrefetch,
+				dynamicImportFetchPriority
+			} = this.options;
+			if (dynamicImportPreload !== undefined && dynamicImportPreload !== false)
+				groupOptions.preloadOrder =
+					dynamicImportPreload === true ? 0 : dynamicImportPreload;
+			if (
+				dynamicImportPrefetch !== undefined &&
+				dynamicImportPrefetch !== false
+			)
+				groupOptions.prefetchOrder =
+					dynamicImportPrefetch === true ? 0 : dynamicImportPrefetch;
+			if (
+				dynamicImportFetchPriority !== undefined &&
+				dynamicImportFetchPriority !== false
+			)
+				groupOptions.fetchPriority = dynamicImportFetchPriority;
+
+			const { options: importOptions, errors: commentErrors } =
+				parser.parseCommentOptions(/** @type {Range} */ (expr.range));
+
+			if (commentErrors) {
+				for (const e of commentErrors) {
+					const { comment } = e;
+					parser.state.module.addWarning(
+						new CommentCompilationWarning(
+							`Compilation error while processing magic comment(-s): /*${comment.value}*/: ${e.message}`,
+							/** @type {DependencyLocation} */ (comment.loc)
+						)
+					);
+				}
+			}
+
+			if (importOptions) {
+				if (importOptions.webpackIgnore !== undefined) {
+					if (typeof importOptions.webpackIgnore !== "boolean") {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackIgnore\` expected a boolean, but received: ${importOptions.webpackIgnore}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					} else if (importOptions.webpackIgnore) {
+						// Do not instrument `import()` if `webpackIgnore` is `true`
+						return false;
+					}
+				}
+				if (importOptions.webpackChunkName !== undefined) {
+					if (typeof importOptions.webpackChunkName !== "string") {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackChunkName\` expected a string, but received: ${importOptions.webpackChunkName}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					} else {
+						chunkName = importOptions.webpackChunkName;
+					}
+				}
+				if (importOptions.webpackMode !== undefined) {
+					if (typeof importOptions.webpackMode !== "string") {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackMode\` expected a string, but received: ${importOptions.webpackMode}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					} else {
+						mode = /** @type {ContextMode} */ (importOptions.webpackMode);
+					}
+				}
+				if (importOptions.webpackPrefetch !== undefined) {
+					if (importOptions.webpackPrefetch === true) {
+						groupOptions.prefetchOrder = 0;
+					} else if (typeof importOptions.webpackPrefetch === "number") {
+						groupOptions.prefetchOrder = importOptions.webpackPrefetch;
+					} else {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackPrefetch\` expected true or a number, but received: ${importOptions.webpackPrefetch}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					}
+				}
+				if (importOptions.webpackPreload !== undefined) {
+					if (importOptions.webpackPreload === true) {
+						groupOptions.preloadOrder = 0;
+					} else if (typeof importOptions.webpackPreload === "number") {
+						groupOptions.preloadOrder = importOptions.webpackPreload;
+					} else {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackPreload\` expected true or a number, but received: ${importOptions.webpackPreload}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					}
+				}
+				if (importOptions.webpackFetchPriority !== undefined) {
+					if (
+						typeof importOptions.webpackFetchPriority === "string" &&
+						["high", "low", "auto"].includes(importOptions.webpackFetchPriority)
+					) {
+						groupOptions.fetchPriority =
+							/** @type {"low" | "high" | "auto"} */
+							(importOptions.webpackFetchPriority);
+					} else {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackFetchPriority\` expected true or "low", "high" or "auto", but received: ${importOptions.webpackFetchPriority}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					}
+				}
+				if (importOptions.webpackInclude !== undefined) {
+					if (
+						!importOptions.webpackInclude ||
+						!(importOptions.webpackInclude instanceof RegExp)
+					) {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackInclude\` expected a regular expression, but received: ${importOptions.webpackInclude}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					} else {
+						include = importOptions.webpackInclude;
+					}
+				}
+				if (importOptions.webpackExclude !== undefined) {
+					if (
+						!importOptions.webpackExclude ||
+						!(importOptions.webpackExclude instanceof RegExp)
+					) {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackExclude\` expected a regular expression, but received: ${importOptions.webpackExclude}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					} else {
+						exclude = importOptions.webpackExclude;
+					}
+				}
+				if (importOptions.webpackExports !== undefined) {
+					if (
+						!(
+							typeof importOptions.webpackExports === "string" ||
+							(Array.isArray(importOptions.webpackExports) &&
+								/** @type {string[]} */ (importOptions.webpackExports).every(
+									item => typeof item === "string"
+								))
+						)
+					) {
+						parser.state.module.addWarning(
+							new UnsupportedFeatureWarning(
+								`\`webpackExports\` expected a string or an array of strings, but received: ${importOptions.webpackExports}.`,
+								/** @type {DependencyLocation} */ (expr.loc)
+							)
+						);
+					} else if (typeof importOptions.webpackExports === "string") {
+						exports = [[importOptions.webpackExports]];
+					} else {
+						exports = exportsFromEnumerable(importOptions.webpackExports);
+					}
+				}
+			}
+
+			if (
+				mode !== "lazy" &&
+				mode !== "lazy-once" &&
+				mode !== "eager" &&
+				mode !== "weak"
+			) {
+				parser.state.module.addWarning(
+					new UnsupportedFeatureWarning(
+						`\`webpackMode\` expected 'lazy', 'lazy-once', 'eager' or 'weak', but received: ${mode}.`,
+						/** @type {DependencyLocation} */ (expr.loc)
+					)
+				);
+				mode = "lazy";
+			}
+
+			const referencedPropertiesInDestructuring =
+				parser.destructuringAssignmentPropertiesFor(expr);
+			if (referencedPropertiesInDestructuring) {
+				if (exports) {
+					parser.state.module.addWarning(
+						new UnsupportedFeatureWarning(
+							"`webpackExports` could not be used with destructuring assignment.",
+							/** @type {DependencyLocation} */ (expr.loc)
+						)
+					);
+				}
+				exports = exportsFromEnumerable(
+					[...referencedPropertiesInDestructuring].map(({ id }) => id)
+				);
+			}
+
+			if (param.isString()) {
+				const attributes = getImportAttributes(expr);
+
+				if (mode === "eager") {
+					const dep = new ImportEagerDependency(
+						/** @type {string} */ (param.string),
+						/** @type {Range} */ (expr.range),
+						exports,
+						attributes
+					);
+					parser.state.current.addDependency(dep);
+				} else if (mode === "weak") {
+					const dep = new ImportWeakDependency(
+						/** @type {string} */ (param.string),
+						/** @type {Range} */ (expr.range),
+						exports,
+						attributes
+					);
+					parser.state.current.addDependency(dep);
+				} else {
+					const depBlock = new AsyncDependenciesBlock(
+						{
+							...groupOptions,
+							name: chunkName
+						},
+						/** @type {DependencyLocation} */ (expr.loc),
+						param.string
+					);
+					const dep = new ImportDependency(
+						/** @type {string} */ (param.string),
+						/** @type {Range} */ (expr.range),
+						exports,
+						attributes
+					);
+					dep.loc = /** @type {DependencyLocation} */ (expr.loc);
+					dep.optional = Boolean(parser.scope.inTry);
+					depBlock.addDependency(dep);
+					parser.state.current.addBlock(depBlock);
+				}
+				return true;
+			}
+			if (mode === "weak") {
+				mode = "async-weak";
+			}
+			const dep = ContextDependencyHelpers.create(
+				ImportContextDependency,
+				/** @type {Range} */ (expr.range),
+				param,
+				expr,
+				this.options,
+				{
+					chunkName,
+					groupOptions,
+					include,
+					exclude,
+					mode,
+					namespaceObject: /** @type {BuildMeta} */ (
+						parser.state.module.buildMeta
+					).strictHarmonyModule
+						? "strict"
+						: true,
+					typePrefix: "import()",
+					category: "esm",
+					referencedExports: exports,
+					attributes: getImportAttributes(expr)
+				},
+				parser
+			);
+			if (!dep) return;
+			dep.loc = /** @type {DependencyLocation} */ (expr.loc);
+			dep.optional = Boolean(parser.scope.inTry);
+			parser.state.current.addDependency(dep);
+			return true;
+		});
+	}
+}
+
+module.exports = ImportParserPlugin;