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Add note about optimizing structs to the TR docs.

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This commit is contained in:
Vincent St-Amour 2011-06-14 16:30:43 -04:00
parent e3274a3cf7
commit 1cf57b893c
1 changed files with 5 additions and 0 deletions
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5
collects/typed-scheme/scribblings/guide/optimization.scrbl
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@ -154,3 +154,8 @@ fashion as @racket[car] and @racket[cdr].
(vector-ref x color-name) ; good (vector-ref x color-name) ; good
(vector-ref x (* 0 10)) ; bad (vector-ref x (* 0 10)) ; bad
) )
In many such cases, however, @seclink[#:doc '(lib
"scribblings/guide/guide.scrbl") "define-struct"]{structs} are
preferable to vectors. Typed Racket can optimize struct access in all
cases.