3-disjoinRuleset.js
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var List = require('../../utils/list.js');
var walkRulesRight = require('../../utils/walk.js').rulesRight;
function processRuleset(node, item, list) {
var selectors = node.selector.selectors;
// generate new rule sets:
// .a, .b { color: red; }
// ->
// .a { color: red; }
// .b { color: red; }
// while there are more than 1 simple selector split for rulesets
while (selectors.head !== selectors.tail) {
var newSelectors = new List();
newSelectors.insert(selectors.remove(selectors.head));
list.insert(list.createItem({
type: 'Ruleset',
info: node.info,
pseudoSignature: node.pseudoSignature,
selector: {
type: 'Selector',
info: node.selector.info,
selectors: newSelectors
},
block: {
type: 'Block',
info: node.block.info,
declarations: node.block.declarations.copy()
}
}), item);
}
};
module.exports = function disjoinRuleset(ast) {
walkRulesRight(ast, function(node, item, list) {
if (node.type === 'Ruleset') {
processRuleset(node, item, list);
}
});
};