282 lines
8.8 KiB
JavaScript
282 lines
8.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
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var _utils = require("../utils");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function parseNode(atRule, key, options) {
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// Convert only top-level @import
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if (atRule.parent.type !== "root") {
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return;
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}
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if (atRule.raws && atRule.raws.afterName && atRule.raws.afterName.trim().length > 0) {
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const lastCommentIndex = atRule.raws.afterName.lastIndexOf("/*");
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const matched = atRule.raws.afterName.slice(lastCommentIndex).match(_utils.WEBPACK_IGNORE_COMMENT_REGEXP);
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if (matched && matched[2] === "true") {
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return;
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}
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}
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const prevNode = atRule.prev();
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if (prevNode && prevNode.type === "comment") {
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const matched = prevNode.text.match(_utils.WEBPACK_IGNORE_COMMENT_REGEXP);
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if (matched && matched[2] === "true") {
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return;
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}
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}
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// Nodes do not exists - `@import url('http://') :root {}`
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if (atRule.nodes) {
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const error = new Error("It looks like you didn't end your @import statement correctly. Child nodes are attached to it.");
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error.node = atRule;
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throw error;
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}
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const rawParams = atRule.raws && atRule.raws[key] && typeof atRule.raws[key].raw !== "undefined" ? atRule.raws[key].raw : atRule[key];
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const {
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nodes: paramsNodes
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} = (0, _postcssValueParser.default)(rawParams);
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// No nodes - `@import ;`
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// Invalid type - `@import foo-bar;`
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if (paramsNodes.length === 0 || paramsNodes[0].type !== "string" && paramsNodes[0].type !== "function") {
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const error = new Error(`Unable to find uri in "${atRule.toString()}"`);
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error.node = atRule;
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throw error;
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}
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let isStringValue;
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let url;
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if (paramsNodes[0].type === "string") {
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isStringValue = true;
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url = paramsNodes[0].value;
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} else {
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// Invalid function - `@import nourl(test.css);`
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if (paramsNodes[0].value.toLowerCase() !== "url") {
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const error = new Error(`Unable to find uri in "${atRule.toString()}"`);
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error.node = atRule;
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throw error;
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}
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isStringValue = paramsNodes[0].nodes.length !== 0 && paramsNodes[0].nodes[0].type === "string";
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url = isStringValue ? paramsNodes[0].nodes[0].value : _postcssValueParser.default.stringify(paramsNodes[0].nodes);
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}
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url = (0, _utils.normalizeUrl)(url, isStringValue);
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const {
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requestable,
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needResolve
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} = (0, _utils.isURLRequestable)(url, options);
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let prefix;
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if (requestable && needResolve) {
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const queryParts = url.split("!");
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if (queryParts.length > 1) {
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url = queryParts.pop();
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prefix = queryParts.join("!");
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}
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}
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// Empty url - `@import "";` or `@import url();`
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if (url.trim().length === 0) {
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const error = new Error(`Unable to find uri in "${atRule.toString()}"`);
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error.node = atRule;
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throw error;
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}
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const additionalNodes = paramsNodes.slice(1);
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let supports;
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let layer;
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let media;
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if (additionalNodes.length > 0) {
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let nodes = [];
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for (const node of additionalNodes) {
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nodes.push(node);
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const isLayerFunction = node.type === "function" && node.value.toLowerCase() === "layer";
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const isLayerWord = node.type === "word" && node.value.toLowerCase() === "layer";
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if (isLayerFunction || isLayerWord) {
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if (isLayerFunction) {
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nodes.splice(nodes.length - 1, 1, ...node.nodes);
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} else {
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nodes.splice(nodes.length - 1, 1, {
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type: "string",
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value: "",
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unclosed: false
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});
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}
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layer = _postcssValueParser.default.stringify(nodes).trim().toLowerCase();
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nodes = [];
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} else if (node.type === "function" && node.value.toLowerCase() === "supports") {
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nodes.splice(nodes.length - 1, 1, ...node.nodes);
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supports = _postcssValueParser.default.stringify(nodes).trim().toLowerCase();
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nodes = [];
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}
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}
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if (nodes.length > 0) {
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media = _postcssValueParser.default.stringify(nodes).trim().toLowerCase();
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}
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}
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// eslint-disable-next-line consistent-return
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return {
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atRule,
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prefix,
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url,
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layer,
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supports,
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media,
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requestable,
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needResolve
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};
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}
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const plugin = (options = {}) => {
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return {
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postcssPlugin: "postcss-import-parser",
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prepare(result) {
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const parsedAtRules = [];
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return {
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AtRule: {
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import(atRule) {
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if (options.isCSSStyleSheet) {
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options.loaderContext.emitError(new Error(atRule.error("'@import' rules are not allowed here and will not be processed").message));
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return;
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}
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const {
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isSupportDataURL,
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isSupportAbsoluteURL
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} = options;
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let parsedAtRule;
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try {
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parsedAtRule = parseNode(atRule, "params", {
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isSupportAbsoluteURL,
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isSupportDataURL
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});
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} catch (error) {
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result.warn(error.message, {
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node: error.node
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});
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}
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if (!parsedAtRule) {
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return;
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}
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parsedAtRules.push(parsedAtRule);
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}
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},
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async OnceExit() {
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if (parsedAtRules.length === 0) {
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return;
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}
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const {
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loaderContext
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} = options;
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const resolver = loaderContext.getResolve({
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dependencyType: "css",
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conditionNames: ["style"],
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mainFields: ["css", "style", "main", "..."],
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mainFiles: ["index", "..."],
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extensions: [".css", "..."],
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preferRelative: true
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});
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const resolvedAtRules = await Promise.all(parsedAtRules.map(async parsedAtRule => {
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const {
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atRule,
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requestable,
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needResolve,
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prefix,
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url,
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layer,
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supports,
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media
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} = parsedAtRule;
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if (options.filter) {
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const needKeep = await options.filter(url, media, loaderContext.resourcePath, supports, layer);
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if (!needKeep) {
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return;
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}
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}
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if (needResolve) {
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const request = (0, _utils.requestify)(url, loaderContext.rootContext);
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const resolvedUrl = await (0, _utils.resolveRequests)(resolver, loaderContext.context, [...new Set([request, url])]);
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if (!resolvedUrl) {
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return;
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}
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if (resolvedUrl === loaderContext.resourcePath) {
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atRule.remove();
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return;
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}
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atRule.remove();
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// eslint-disable-next-line consistent-return
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return {
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url: resolvedUrl,
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layer,
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supports,
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media,
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prefix,
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requestable
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};
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}
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atRule.remove();
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// eslint-disable-next-line consistent-return
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return {
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url,
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layer,
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supports,
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media,
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prefix,
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requestable
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};
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}));
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const urlToNameMap = new Map();
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for (let index = 0; index <= resolvedAtRules.length - 1; index++) {
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const resolvedAtRule = resolvedAtRules[index];
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if (!resolvedAtRule) {
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// eslint-disable-next-line no-continue
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continue;
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}
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const {
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url,
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requestable,
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layer,
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supports,
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media
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} = resolvedAtRule;
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if (!requestable) {
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options.api.push({
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url,
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layer,
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supports,
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media,
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index
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});
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// eslint-disable-next-line no-continue
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continue;
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}
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const {
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prefix
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} = resolvedAtRule;
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const newUrl = prefix ? `${prefix}!${url}` : url;
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let importName = urlToNameMap.get(newUrl);
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if (!importName) {
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importName = `___CSS_LOADER_AT_RULE_IMPORT_${urlToNameMap.size}___`;
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urlToNameMap.set(newUrl, importName);
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options.imports.push({
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type: "rule_import",
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importName,
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url: options.urlHandler(newUrl),
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index
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});
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}
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options.api.push({
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importName,
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layer,
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supports,
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media,
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index
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});
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}
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}
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};
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}
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};
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};
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plugin.postcss = true;
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var _default = exports.default = plugin; |