corrected

pitfall/fontkit/directory.rkt

@@ -22,7 +22,6 @@ https://github.com/mbutterick/fontkit/blob/master/src/tables/directory.js
     (hash-set! this-res 'tables new-tables-val))
 
   (define/override (preEncode this-val stream)
-    
     (define tables empty)
     (for ([(tag table) (in-hash (· this-val tables))])
       (when table

pitfall/fontkit/glyf.rkt

@@ -20,4 +20,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/tables/glyf.js
  (set-port-position! ip 0)
  (define table-bytes (peek-bytes len offset ip))
  (define ds (+DecodeStream table-bytes))
+ (define es (+EncodeStream))
+ (send glyf encode es empty)
+ #;(send es dump)
  )

pitfall/fontkit/subset.rkt

@@ -97,7 +97,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/subset/TTFSubset.js
                 'fpgm (send (· this font) _getTable 'fpgm)
                 )))
 
-  (report* stream (send stream dump))
+  (report* (send stream dump))
   
   (unfinished)
   )

pitfall/restructure/buffer.rkt

@@ -7,7 +7,7 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Buffer.coffee
 |#
 
-(define-subclass RestructureBase (Buffer [_length #f])
+(define-subclass RestructureBase (Buffer [_length #xffff])
   (define/override (decode stream [parent #f])
     (define len (resolveLength _length stream parent))
     (send stream readBuffer len))