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