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80
node_modules/postcss-modules/build/css-loader-core/parser.js
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80
node_modules/postcss-modules/build/css-loader-core/parser.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _icssReplaceSymbols = require("icss-replace-symbols");
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var _icssReplaceSymbols2 = _interopRequireDefault(_icssReplaceSymbols);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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// Copied from https://github.com/css-modules/css-modules-loader-core
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const importRegexp = /^:import\((.+)\)$/;
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class Parser {
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constructor(pathFetcher, trace) {
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this.pathFetcher = pathFetcher;
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this.plugin = this.plugin.bind(this);
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this.exportTokens = {};
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this.translations = {};
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this.trace = trace;
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}
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plugin() {
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const parser = this;
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return {
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postcssPlugin: "css-modules-parser",
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OnceExit(css) {
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return Promise.all(parser.fetchAllImports(css)).then(() => parser.linkImportedSymbols(css)).then(() => parser.extractExports(css));
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}
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};
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}
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fetchAllImports(css) {
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let imports = [];
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css.each(node => {
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if (node.type == "rule" && node.selector.match(importRegexp)) {
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imports.push(this.fetchImport(node, css.source.input.from, imports.length));
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}
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});
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return imports;
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}
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linkImportedSymbols(css) {
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(0, _icssReplaceSymbols2.default)(css, this.translations);
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}
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extractExports(css) {
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css.each(node => {
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if (node.type == "rule" && node.selector == ":export") this.handleExport(node);
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});
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}
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handleExport(exportNode) {
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exportNode.each(decl => {
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if (decl.type == "decl") {
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Object.keys(this.translations).forEach(translation => {
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decl.value = decl.value.replace(translation, this.translations[translation]);
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});
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this.exportTokens[decl.prop] = decl.value;
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}
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});
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exportNode.remove();
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}
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fetchImport(importNode, relativeTo, depNr) {
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let file = importNode.selector.match(importRegexp)[1],
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depTrace = this.trace + String.fromCharCode(depNr);
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return this.pathFetcher(file, relativeTo, depTrace).then(exports => {
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importNode.each(decl => {
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if (decl.type == "decl") {
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this.translations[decl.prop] = exports[decl.value];
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}
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});
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importNode.remove();
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}, err => console.log(err));
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}
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}
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exports.default = Parser;
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