On 10/05/2011 01:13 PM, ntoro...@racket-lang.org wrote:
ntoronto has updated `master' from e1a82481d1 to 32d789d4f8. http://git.racket-lang.org/plt/e1a82481d1..32d789d4f8 [...] ; fit-int : (number* -> number) (list-of (symbol number)) (list-of (vector number [number] number number)) -> fit-result (define (fit-int function guesses data) + ;; Require dynamically so the rest of 'plot' still works without libfit: + (define fit-internal (dynamic-require 'plot/deprecated/fit-low-level 'fit-internal)) (let* ((independent-vars (- (procedure-arity function) (length guesses))) (f-of-x-y (cond [(= 1 independent-vars)
Be careful with dynamic-require; it uses (current-namespace), which is not necessarily the same namespace that the enclosing module was loaded in. Specifically, you might get a different module registry, which can lead to multiple module instantiations, which can lead to problems with generative structs, etc.
Also, with plain dynamic-require, if you build an executable ("raco exe") it probably won't include the dynamically-required module.
I recommend using lazy-require (from unstable/lazy-require) instead. It handles both the namespace issue and the "raco exe" issue automatically.
Ryan _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
