| var walk = require('css-tree').walk; | 
| var handlers = { | 
|     Atrule: require('./Atrule'), | 
|     AttributeSelector: require('./AttributeSelector'), | 
|     Value: require('./Value'), | 
|     Dimension: require('./Dimension'), | 
|     Percentage: require('./Percentage'), | 
|     Number: require('./Number'), | 
|     String: require('./String'), | 
|     Url: require('./Url'), | 
|     Hash: require('./color').compressHex, | 
|     Identifier: require('./color').compressIdent, | 
|     Function: require('./color').compressFunction | 
| }; | 
|   | 
| module.exports = function(ast) { | 
|     walk(ast, { | 
|         leave: function(node, item, list) { | 
|             if (handlers.hasOwnProperty(node.type)) { | 
|                 handlers[node.type].call(this, node, item, list); | 
|             } | 
|         } | 
|     }); | 
| }; |