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node_modules/postcss-discard-comments/dist/index.js

@@ -1,55 +1,73 @@
-'use strict';
+"use strict";
 
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
 
-var _commentRemover = require('./lib/commentRemover');
+var _postcss = require("postcss");
+
+var _commentRemover = require("./lib/commentRemover");
 
 var _commentRemover2 = _interopRequireDefault(_commentRemover);
 
-var _commentParser = require('./lib/commentParser');
+var _commentParser = require("./lib/commentParser");
 
 var _commentParser2 = _interopRequireDefault(_commentParser);
 
-var _postcss = require('postcss');
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-var space = _postcss.list.space;
+const { space } = _postcss.list;
 
-exports.default = (0, _postcss.plugin)('postcss-discard-comments', function () {
-    var opts = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
-
-    var remover = new _commentRemover2.default(opts);
+exports.default = (0, _postcss.plugin)("postcss-discard-comments", (opts = {}) => {
+    const remover = new _commentRemover2.default(opts);
+    const matcherCache = {};
+    const replacerCache = {};
 
     function matchesComments(source) {
-        return (0, _commentParser2.default)(source).filter(function (node) {
-            return node.type === 'comment';
-        });
+        if (matcherCache[source]) {
+            return matcherCache[source];
+        }
+
+        const result = (0, _commentParser2.default)(source).filter(([type]) => type);
+
+        matcherCache[source] = result;
+
+        return result;
     }
 
-    function replaceComments(source) {
-        var separator = arguments.length <= 1 || arguments[1] === undefined ? ' ' : arguments[1];
+    function replaceComments(source, separator = " ") {
+        const key = source + "@|@" + separator;
 
-        if (!source) {
-            return source;
+        if (replacerCache[key]) {
+            return replacerCache[key];
         }
-        var parsed = (0, _commentParser2.default)(source).reduce(function (value, node) {
-            if (node.type !== 'comment') {
-                return value + node.value;
+
+        const parsed = (0, _commentParser2.default)(source).reduce((value, [type, start, end]) => {
+            const contents = source.slice(start, end);
+
+            if (!type) {
+                return value + contents;
             }
-            if (remover.canRemove(node.value)) {
+
+            if (remover.canRemove(contents)) {
                 return value + separator;
             }
-            return value + '/*' + node.value + '*/';
-        }, '');
 
-        return space(parsed).join(' ');
+            return `${value}/*${contents}*/`;
+        }, "");
+
+        const result = space(parsed).join(" ");
+
+        replacerCache[key] = result;
+
+        return result;
     }
 
-    return function (css) {
-        css.walk(function (node) {
-            if (node.type === 'comment' && remover.canRemove(node.text)) {
+    return css => {
+        css.walk(node => {
+            if (node.type === "comment" && remover.canRemove(node.text)) {
                 node.remove();
+
                 return;
             }
 
@@ -57,37 +75,45 @@ exports.default = (0, _postcss.plugin)('postcss-discard-comments', function () {
                 node.raws.between = replaceComments(node.raws.between);
             }
 
-            if (node.type === 'decl') {
+            if (node.type === "decl") {
                 if (node.raws.value && node.raws.value.raw) {
                     if (node.raws.value.value === node.value) {
                         node.value = replaceComments(node.raws.value.raw);
                     } else {
                         node.value = replaceComments(node.value);
                     }
+
                     node.raws.value = null;
                 }
+
                 if (node.raws.important) {
                     node.raws.important = replaceComments(node.raws.important);
-                    var b = matchesComments(node.raws.important);
-                    node.raws.important = b.length ? node.raws.important : '!important';
+
+                    const b = matchesComments(node.raws.important);
+
+                    node.raws.important = b.length ? node.raws.important : "!important";
                 }
+
                 return;
             }
 
-            if (node.type === 'rule' && node.raws.selector && node.raws.selector.raw) {
-                node.raws.selector.raw = replaceComments(node.raws.selector.raw, '');
+            if (node.type === "rule" && node.raws.selector && node.raws.selector.raw) {
+                node.raws.selector.raw = replaceComments(node.raws.selector.raw, "");
+
                 return;
             }
 
-            if (node.type === 'atrule') {
+            if (node.type === "atrule") {
                 if (node.raws.afterName) {
-                    var commentsReplaced = replaceComments(node.raws.afterName);
+                    const commentsReplaced = replaceComments(node.raws.afterName);
+
                     if (!commentsReplaced.length) {
-                        node.raws.afterName = commentsReplaced + ' ';
+                        node.raws.afterName = commentsReplaced + " ";
                     } else {
-                        node.raws.afterName = ' ' + commentsReplaced + ' ';
+                        node.raws.afterName = " " + commentsReplaced + " ";
                     }
                 }
+
                 if (node.raws.params && node.raws.params.raw) {
                     node.raws.params.raw = replaceComments(node.raws.params.raw);
                 }
@@ -95,4 +121,4 @@ exports.default = (0, _postcss.plugin)('postcss-discard-comments', function () {
         });
     };
 });
-module.exports = exports['default'];
+module.exports = exports["default"];