text: var tokenize = require('css-tree').tokenize;
  var IDENT = tokenize.TYPE.Ident;
  var DOLLARSIGN = 0x0024; // U+0024 DOLLAR SIGN ($)
  
  module.exports = {
      name: 'SassVariable',
      structure: {
          name: 'Identifier'
      },
      parse: function SassVariable() {
          var start = this.scanner.tokenStart;
  
          if (!this.scanner.isDelim(DOLLARSIGN)) {
              this.error();
          }
  
          this.scanner.next();
  
          return {
              type: 'SassVariable',
              loc: this.getLocation(start, this.scanner.tokenEnd),
              name: this.consume(IDENT)
          };
      }
  };
  