nl_tokens: Compile ast .
pl_tokens: function ( ast , options ) { var opts = utils . extend ( { } , this . options , options ) ; this . ast = ast ; this . parsingErrors = this . ast . errors ; this . output = '' ; // source map support if ( opts . sourcemap ) { var sourcemaps = require ( './source-maps' ) ; sourcemaps ( this ) ; this . mapVisit ( this . ast . nodes ) ; this . applySourceMaps ( ) ; this . <mask> = opts . sourcemap === 'generator' ? this . map : this . map . toJSON ( ) ; return this ; } this . mapVisit ( this . ast . nodes ) ; return this ; }