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node_modules/autoprefixer/lib/prefixer.js

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+"use strict";
+
+function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }
+
+function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
+
+function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+
+var vendor = require('postcss').vendor;
+
+var Browsers = require('./browsers');
+
+var utils = require('./utils');
+/**
+ * Recursively clone objects
+ */
+
+
+function _clone(obj, parent) {
+  var cloned = new obj.constructor();
+
+  for (var _i = 0, _Object$keys = Object.keys(obj || {}); _i < _Object$keys.length; _i++) {
+    var i = _Object$keys[_i];
+    var value = obj[i];
+
+    if (i === 'parent' && typeof value === 'object') {
+      if (parent) {
+        cloned[i] = parent;
+      }
+    } else if (i === 'source' || i === null) {
+      cloned[i] = value;
+    } else if (Array.isArray(value)) {
+      cloned[i] = value.map(function (x) {
+        return _clone(x, cloned);
+      });
+    } else if (i !== '_autoprefixerPrefix' && i !== '_autoprefixerValues') {
+      if (typeof value === 'object' && value !== null) {
+        value = _clone(value, cloned);
+      }
+
+      cloned[i] = value;
+    }
+  }
+
+  return cloned;
+}
+
+var Prefixer = /*#__PURE__*/function () {
+  /**
+     * Add hack to selected names
+     */
+  Prefixer.hack = function hack(klass) {
+    var _this = this;
+
+    if (!this.hacks) {
+      this.hacks = {};
+    }
+
+    return klass.names.map(function (name) {
+      _this.hacks[name] = klass;
+      return _this.hacks[name];
+    });
+  }
+  /**
+     * Load hacks for some names
+     */
+  ;
+
+  Prefixer.load = function load(name, prefixes, all) {
+    var Klass = this.hacks && this.hacks[name];
+
+    if (Klass) {
+      return new Klass(name, prefixes, all);
+    } else {
+      return new this(name, prefixes, all);
+    }
+  }
+  /**
+     * Clone node and clean autprefixer custom caches
+     */
+  ;
+
+  Prefixer.clone = function clone(node, overrides) {
+    var cloned = _clone(node);
+
+    for (var name in overrides) {
+      cloned[name] = overrides[name];
+    }
+
+    return cloned;
+  };
+
+  function Prefixer(name, prefixes, all) {
+    this.prefixes = prefixes;
+    this.name = name;
+    this.all = all;
+  }
+  /**
+     * Find prefix in node parents
+     */
+
+
+  var _proto = Prefixer.prototype;
+
+  _proto.parentPrefix = function parentPrefix(node) {
+    var prefix;
+
+    if (typeof node._autoprefixerPrefix !== 'undefined') {
+      prefix = node._autoprefixerPrefix;
+    } else if (node.type === 'decl' && node.prop[0] === '-') {
+      prefix = vendor.prefix(node.prop);
+    } else if (node.type === 'root') {
+      prefix = false;
+    } else if (node.type === 'rule' && node.selector.includes(':-') && /:(-\w+-)/.test(node.selector)) {
+      prefix = node.selector.match(/:(-\w+-)/)[1];
+    } else if (node.type === 'atrule' && node.name[0] === '-') {
+      prefix = vendor.prefix(node.name);
+    } else {
+      prefix = this.parentPrefix(node.parent);
+    }
+
+    if (!Browsers.prefixes().includes(prefix)) {
+      prefix = false;
+    }
+
+    node._autoprefixerPrefix = prefix;
+    return node._autoprefixerPrefix;
+  }
+  /**
+     * Clone node with prefixes
+     */
+  ;
+
+  _proto.process = function process(node, result) {
+    if (!this.check(node)) {
+      return undefined;
+    }
+
+    var parent = this.parentPrefix(node);
+    var prefixes = this.prefixes.filter(function (prefix) {
+      return !parent || parent === utils.removeNote(prefix);
+    });
+    var added = [];
+
+    for (var _iterator = _createForOfIteratorHelperLoose(prefixes), _step; !(_step = _iterator()).done;) {
+      var prefix = _step.value;
+
+      if (this.add(node, prefix, added.concat([prefix]), result)) {
+        added.push(prefix);
+      }
+    }
+
+    return added;
+  }
+  /**
+     * Shortcut for Prefixer.clone
+     */
+  ;
+
+  _proto.clone = function clone(node, overrides) {
+    return Prefixer.clone(node, overrides);
+  };
+
+  return Prefixer;
+}();
+
+module.exports = Prefixer;