| var specificity = require('./specificity'); |
| |
| function specificitiesOverlap(selector1, selector2, cache) { |
| var specificity1; |
| var specificity2; |
| var i, l; |
| var j, m; |
| |
| for (i = 0, l = selector1.length; i < l; i++) { |
| specificity1 = findSpecificity(selector1[i][1], cache); |
| |
| for (j = 0, m = selector2.length; j < m; j++) { |
| specificity2 = findSpecificity(selector2[j][1], cache); |
| |
| if (specificity1[0] === specificity2[0] && specificity1[1] === specificity2[1] && specificity1[2] === specificity2[2]) { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| function findSpecificity(selector, cache) { |
| var value; |
| |
| if (!(selector in cache)) { |
| cache[selector] = value = specificity(selector); |
| } |
| |
| return value || cache[selector]; |
| } |
| |
| module.exports = specificitiesOverlap; |