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- var walk = require('css-tree').walk;
- var utils = require('./utils');
- function processRule(node, item, list) {
- var selectors = node.prelude.children;
- var declarations = node.block.children;
- list.prevUntil(item.prev, function(prev) {
-
- if (prev.type !== 'Rule') {
- return utils.unsafeToSkipNode.call(selectors, prev);
- }
- var prevSelectors = prev.prelude.children;
- var prevDeclarations = prev.block.children;
-
- if (node.pseudoSignature === prev.pseudoSignature) {
-
- if (utils.isEqualSelectors(prevSelectors, selectors)) {
- prevDeclarations.appendList(declarations);
- list.remove(item);
- return true;
- }
-
- if (utils.isEqualDeclarations(declarations, prevDeclarations)) {
- utils.addSelectors(prevSelectors, selectors);
- list.remove(item);
- return true;
- }
- }
-
- return utils.hasSimilarSelectors(selectors, prevSelectors);
- });
- }
- module.exports = function initialMergeRule(ast) {
- walk(ast, {
- visit: 'Rule',
- enter: processRule
- });
- };
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