1 files changed, 95 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/old-selector.js b/node_modules/autoprefixer/lib/old-selector.js
new file mode 100644
index 0000000..ba0913e
--- /dev/null
+++ b/node_modules/autoprefixer/lib/old-selector.js
@@ -0,0 +1,95 @@
+"use strict";
+
+var OldSelector =
+/*#__PURE__*/
+function () {
+  function OldSelector(selector, prefix) {
+    this.prefix = prefix;
+    this.prefixed = selector.prefixed(this.prefix);
+    this.regexp = selector.regexp(this.prefix);
+    this.prefixeds = selector.possible().map(function (x) {
+      return [selector.prefixed(x), selector.regexp(x)];
+    });
+    this.unprefixed = selector.name;
+    this.nameRegexp = selector.regexp();
+  }
+  /**
+     * Is rule a hack without unprefixed version bottom
+     */
+
+
+  var _proto = OldSelector.prototype;
+
+  _proto.isHack = function isHack(rule) {
+    var index = rule.parent.index(rule) + 1;
+    var rules = rule.parent.nodes;
+
+    while (index < rules.length) {
+      var before = rules[index].selector;
+
+      if (!before) {
+        return true;
+      }
+
+      if (before.includes(this.unprefixed) && before.match(this.nameRegexp)) {
+        return false;
+      }
+
+      var some = false;
+
+      for (var _iterator = this.prefixeds, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+        var _ref;
+
+        if (_isArray) {
+          if (_i >= _iterator.length) break;
+          _ref = _iterator[_i++];
+        } else {
+          _i = _iterator.next();
+          if (_i.done) break;
+          _ref = _i.value;
+        }
+
+        var _ref2 = _ref,
+            string = _ref2[0],
+            regexp = _ref2[1];
+
+        if (before.includes(string) && before.match(regexp)) {
+          some = true;
+          break;
+        }
+      }
+
+      if (!some) {
+        return true;
+      }
+
+      index += 1;
+    }
+
+    return true;
+  }
+  /**
+     * Does rule contain an unnecessary prefixed selector
+     */
+  ;
+
+  _proto.check = function check(rule) {
+    if (!rule.selector.includes(this.prefixed)) {
+      return false;
+    }
+
+    if (!rule.selector.match(this.regexp)) {
+      return false;
+    }
+
+    if (this.isHack(rule)) {
+      return false;
+    }
+
+    return true;
+  };
+
+  return OldSelector;
+}();
+
+module.exports = OldSelector;
+\ No newline at end of file