chore: update deps

node_modules/clean-css/lib/optimizer/level-2/merge-non-adjacent-by-selector.js

@@ -0,0 +1,78 @@
+var canReorder = require('./reorderable').canReorder;
+var extractProperties = require('./extract-properties');
+
+var optimizeProperties = require('./properties/optimize');
+
+var serializeRules = require('../../writer/one-time').rules;
+
+var Token = require('../../tokenizer/token');
+
+function mergeNonAdjacentBySelector(tokens, context) {
+  var specificityCache = context.cache.specificity;
+  var allSelectors = {};
+  var repeatedSelectors = [];
+  var i;
+
+  for (i = tokens.length - 1; i >= 0; i--) {
+    if (tokens[i][0] != Token.RULE)
+      continue;
+    if (tokens[i][2].length === 0)
+      continue;
+
+    var selector = serializeRules(tokens[i][1]);
+    allSelectors[selector] = [i].concat(allSelectors[selector] || []);
+
+    if (allSelectors[selector].length == 2)
+      repeatedSelectors.push(selector);
+  }
+
+  for (i = repeatedSelectors.length - 1; i >= 0; i--) {
+    var positions = allSelectors[repeatedSelectors[i]];
+
+    selectorIterator:
+    for (var j = positions.length - 1; j > 0; j--) {
+      var positionOne = positions[j - 1];
+      var tokenOne = tokens[positionOne];
+      var positionTwo = positions[j];
+      var tokenTwo = tokens[positionTwo];
+
+      directionIterator:
+      for (var direction = 1; direction >= -1; direction -= 2) {
+        var topToBottom = direction == 1;
+        var from = topToBottom ? positionOne + 1 : positionTwo - 1;
+        var to = topToBottom ? positionTwo : positionOne;
+        var delta = topToBottom ? 1 : -1;
+        var moved = topToBottom ? tokenOne : tokenTwo;
+        var target = topToBottom ? tokenTwo : tokenOne;
+        var movedProperties = extractProperties(moved);
+
+        while (from != to) {
+          var traversedProperties = extractProperties(tokens[from]);
+          from += delta;
+
+          // traversed then moved as we move selectors towards the start
+          var reorderable = topToBottom ?
+            canReorder(movedProperties, traversedProperties, specificityCache) :
+            canReorder(traversedProperties, movedProperties, specificityCache);
+
+          if (!reorderable && !topToBottom)
+            continue selectorIterator;
+          if (!reorderable && topToBottom)
+            continue directionIterator;
+        }
+
+        if (topToBottom) {
+          Array.prototype.push.apply(moved[2], target[2]);
+          target[2] = moved[2];
+        } else {
+          Array.prototype.push.apply(target[2], moved[2]);
+        }
+
+        optimizeProperties(target[2], true, true, context);
+        moved[2] = [];
+      }
+    }
+  }
+}
+
+module.exports = mergeNonAdjacentBySelector;