#lang racket (letrec ((a 1) (b (add1 a))) (list a b)) Runs fine in DrRacket, but with debug gives me two times a warning window as follows: b: undefined; cannot use before initialization context...: loop C:\Program Files\Racket-6.2.900.3\share\pkgs\drracket\gui-debugger\marks.rkt:110:2: expose-mark expose-mark C:\Program Files\Racket-6.2.900.3\share\pkgs\drracket\gui-debugger\debug-tool.rkt:1186: 8: register-vars method in ...ugger/debug-tool.rkt:1140:6 C:\Program Files\Racket-6.2.900.3\share\pkgs\drracket\gui-debugger\debug-tool.rkt:989:1 0: core1379 C:\Program Files\Racket-6.2.900.3\share\pkgs\gui-lib\mred\private\wxme\editor-canvas.rk t:394:2: on-event method in editor-canvas% C:\Program Files\Racket-6.2.900.3\collects\racket\private\more-scheme.rkt:148:2: call-with-break-parameterization C:\Program Files\Racket-6.2.900.3\collects\racket\private\more-scheme.rkt:265:2: call-with-exception-handler C:\Program Files\Racket-6.2.900.3\share\pkgs\gui-lib\mred\private\wx\win32\window.rkt:7 67:2: dispatch-on-event method in window% C:\Program Files\Racket-6.2.900.3\share\pkgs\gui-lib\mred\private\wx\common\queue.rkt:4 54:6 C:\Program Files\Racket-6.2.900.3\share\pkgs\gui-lib\mred\private\wx\common\queue.rkt:5 05:32 C:\Program Files\Racket-6.2.900.3\share\pkgs\gui-lib\mred\private\wx\common\queue.rkt:6 53:3
Repeatedly clicking ok in the warning and stepping further works, though, and produces correct result. This happens in both 6.2.900.3--2015-05-16(e8b52f6/a) [3m] and version 6.1.1 [3m]. . Even stranger: #lang racket (let () (letrec ((a 1) (b (add1 a))) (list a b))) Runs well, but with debug in DrRacket 6.2.900.3 keeps on running without messages and without allowing to step either. In DrRacket version 6.1.1 [3m]. the same as above. Best wishes, Jos Koot -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
