Add note about optimizing structs to the TR docs.

original commit: 1cf57b893c2cd863cc40a3d9fc6d1ced0b598436
2011-06-14 16:30:43 -04:00 · 2011-06-14 16:30:43 -04:00 · bdd8420389
commit bdd8420389
parent 51275863c0
1 changed files with 5 additions and 0 deletions
--- a/collects/typed-scheme/scribblings/guide/optimization.scrbl
+++ b/collects/typed-scheme/scribblings/guide/optimization.scrbl
@ -154,3 +154,8 @@ fashion as @racket[car] and @racket[cdr].
 (vector-ref x color-name) ; good
 (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.