Since the change for PR 15049, value turtle snips don't display anymore, instead there's an error.
#lang racket ; Also happens in ISL. (require graphics/value-turtles) (define tv (turtles 100 100)) tv ; error: put in editor-stream-out%: bad argument combination: "(100 100 (#(struct:turtle (50 50 0))) #(struct:offset (0 0 0)) ())" The backtrace for builtin shows it getting to make-snip-special in: /share/pkgs/gui-lib/framework/private/text.rkt: 2234:2 Looking at the code for graphics/value-turtles they can't save properly: in particular the code for writing uses a method that doesn't exist. Copying a turtle snip in the earlier racket version 6.2.0.2 generates a similar error, as does (unsurprisingly) trying to save the Interactions when it contains a turtle snip. I'm considering fixing the library, including making it rackety, but the only part I don't understand is what it's trying to accomplish with the global state of saved-turtles, for example there's the code: (unless saved-turtles (error 'turtles "click execute before running the turtles")) If it can be confirmed that it just needs to work according to the documentation, both when installed as an htdp teachpack (Die Macht der Abstraktion doesn't depend on that library) or when required, then I'd go ahead. -- You received this message because you are subscribed to the Google Groups "Racket Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-dev/a806166a-15eb-405e-a730-a2ea21d1b9f7%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
