initial commit

node_modules/autoprefixer/lib/prefixer.js

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+"use strict";
+
+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 (value instanceof Array) {
+      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.indexOf(':-') !== -1 && /:(-\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().indexOf(prefix) === -1) {
+      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 = prefixes, _isArray = Array.isArray(_iterator), _i2 = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+      var _ref;
+
+      if (_isArray) {
+        if (_i2 >= _iterator.length) break;
+        _ref = _iterator[_i2++];
+      } else {
+        _i2 = _iterator.next();
+        if (_i2.done) break;
+        _ref = _i2.value;
+      }
+
+      var prefix = _ref;
+
+      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;