| 'use strict'; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.default = mergeRules; |
| |
| var _hasAllProps = require('./hasAllProps'); |
| |
| var _hasAllProps2 = _interopRequireDefault(_hasAllProps); |
| |
| var _getDecls = require('./getDecls'); |
| |
| var _getDecls2 = _interopRequireDefault(_getDecls); |
| |
| var _getRules = require('./getRules'); |
| |
| var _getRules2 = _interopRequireDefault(_getRules); |
| |
| function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
| |
| function isConflictingProp(propA, propB) { |
| if (!propB.prop || propB.important !== propA.important) { |
| return; |
| } |
| |
| const parts = propA.prop.split('-'); |
| |
| return parts.some(() => { |
| parts.pop(); |
| |
| return parts.join('-') === propB.prop; |
| }); |
| } |
| |
| function hasConflicts(match, nodes) { |
| const firstNode = Math.min.apply(null, match.map(n => nodes.indexOf(n))); |
| const lastNode = Math.max.apply(null, match.map(n => nodes.indexOf(n))); |
| const between = nodes.slice(firstNode + 1, lastNode); |
| |
| return match.some(a => between.some(b => isConflictingProp(a, b))); |
| } |
| |
| function mergeRules(rule, properties, callback) { |
| let decls = (0, _getDecls2.default)(rule, properties); |
| |
| while (decls.length) { |
| const last = decls[decls.length - 1]; |
| const props = decls.filter(node => node.important === last.important); |
| const rules = (0, _getRules2.default)(props, properties); |
| |
| if ((0, _hasAllProps2.default)(rules, ...properties) && !hasConflicts(rules, rule.nodes)) { |
| if (callback(rules, last, props)) { |
| decls = decls.filter(node => !~rules.indexOf(node)); |
| } |
| } |
| |
| decls = decls.filter(node => node !== last); |
| } |
| } |
| module.exports = exports['default']; |