When I take out the #{} annotations, it gives me 24 errors (with some repeated) instead of just 6: (that’s the reason I put them there in the first place) (: sphere3d (#:posn (Vectorof Real) #:r Nonnegative-Real [#:color Plot-Color] -> renderer3d)) (define (sphere3d #:posn ctr.posn #:r r #:color [color "black"]) (let: ([ctr.x : Real (vector-x ctr.posn)] [ctr.y : Real (vector-y ctr.posn)] [ctr.z : Real (vector-z ctr.posn)]) (isosurface3d (λ: ([x : Real] [y : Real] [z : Real]) (let: ([posn : (Vectorof Real) (vector x y z)]) (vmag^2 (v- posn ctr.posn)))) (ann (sqr r) Real) (ann (- ctr.x r) (U Real False)) (ann (+ ctr.x r) (U Real False)) (ann (- ctr.y r) (U Real False)) (ann (+ ctr.y r) (U Real False)) (ann (- ctr.z r) (U Real False)) (ann (+ ctr.z r) (U Real False)) #:line-style 'transparent #:color color)))
. Type Checker: Expected (Vectorof Real), but got Plot-Color in: ctr.posn . Type Checker: Expected (Vectorof Real), but got Plot-Color in: ctr.posn . Type Checker: Expected (Vectorof Real), but got Plot-Color in: ctr.posn . Type Checker: Expected (Vectorof Real), but got Plot-Color in: ctr.posn . Type Checker: Expected Real, but got True in: r . Type Checker: Expected Real, but got True in: r . Type Checker: Expected Real, but got True in: r . Type Checker: Expected Real, but got True in: r . Type Checker: Expected Real, but got True in: r . Type Checker: Expected Real, but got True in: r . Type Checker: Expected Real, but got True in: r . Type Checker: No function domains matched in function application: Types: (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) -> renderer3d (Real Real Real -> Real) Real -> renderer3d Arguments: (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) Expected result: renderer3d in: (isosurface3d (λ: ((x : Real) (y : Real) (z : Real)) (let: ((posn : (Vectorof Real) (vector x y z))) (vmag^2 (v- posn ctr.posn)))) (ann (sqr r) Real) (ann (- ctr.x r) (U Real False)) (ann (+ ctr.x r) (U Real False)) (ann (- ctr.y r) (U Real False)) (ann (+ ctr.y r) (U Real False)) (ann (- ctr.z r) (U Real False)) (ann (+ ctr.z r) (U Real False)) #:line-style (quote transparent) #:color color) . Type Checker: Expected (Vectorof Real), but got False in: ctr.posn . Type Checker: Expected (Vectorof Real), but got False in: ctr.posn . Type Checker: Expected (Vectorof Real), but got False in: ctr.posn . Type Checker: Expected (Vectorof Real), but got False in: ctr.posn . Type Checker: Expected Real, but got False in: r . Type Checker: Expected Real, but got False in: r . Type Checker: Expected Real, but got False in: r . Type Checker: Expected Real, but got False in: r . Type Checker: Expected Real, but got False in: r . Type Checker: Expected Real, but got False in: r . Type Checker: Expected Real, but got False in: r . Type Checker: No function domains matched in function application: Types: (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) (U Real False) -> renderer3d (Real Real Real -> Real) Real (U Real False) -> renderer3d (Real Real Real -> Real) Real -> renderer3d Arguments: (Real Real Real -> Real) Real (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) (U Real False) Expected result: renderer3d in: (isosurface3d (λ: ((x : Real) (y : Real) (z : Real)) (let: ((posn : (Vectorof Real) (vector x y z))) (vmag^2 (v- posn ctr.posn)))) (ann (sqr r) Real) (ann (- ctr.x r) (U Real False)) (ann (+ ctr.x r) (U Real False)) (ann (- ctr.y r) (U Real False)) (ann (+ ctr.y r) (U Real False)) (ann (- ctr.z r) (U Real False)) (ann (+ ctr.z r) (U Real False)) #:line-style (quote transparent) #:color color) On Apr 19, 2014, at 10:46 PM, Greg Hendershott <greghendersh...@gmail.com> wrote: > I think you don't want those #{} annotations in the function definition: > >> (define (sphere3d #:posn #{ctr.posn : (Vectorof Real)} #:r #{r : >> Nonnegative-Real} #:color [#{color : Plot-Color} "black"]) > > The following typechecks OK for me: > > (define (sphere3d #:posn ctr.posn #:r r #:color [color "black"]) > > In other words, when you annotate the function using `(: sphere3d > ___)`, you've told Typed Racket all it needs to know about the > function type. Then you can write the function definition just as you > would in untyped Racket.
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