nl_tokens: Adds type handler
pl_tokens: function addHandler ( cls , replacer , reviver ) { if ( typeof cls !== "function" ) { throw <mask> TypeError ( "'cls' must be class/function" ) ; } if ( typeof replacer !== "function" ) { throw new TypeError ( "'replacer' must be function" ) ; } if ( typeof reviver !== "function" ) { throw new TypeError ( "'reviver' must be function" ) ; } __handlers [ cls . name ] = { cls : cls , replacer : replacer , reviver : reviver } ; }