suzanne.soy/racket
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Document require/typed more precisely

Browse Source
This commit is contained in:
Asumu Takikawa 2013-07-31 16:47:01 -04:00
parent 7e3ee7105a
commit d3c3726628
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
pkgs/typed-racket-pkgs/typed-racket-doc/typed-racket/scribblings/reference/special-forms.scrbl
View File

@ -373,23 +373,27 @@ A reader abbreviation for @racket[(inst e t ... t ooo bound)].}
@section{Require}
Here, @racket[_m] is a module spec, @racket[_pred] is an identifier
naming a predicate, and @racket[_r] is an optionally-renamed identifier.
naming a predicate, and @racket[_maybe-renamed] is an
optionally-renamed identifier.
@defform/subs[#:literals (struct)
(require/typed m rt-clause ...)
([rt-clause [r t]
([rt-clause [maybe-renamed t]
[#:struct name ([f : t] ...)
struct-option ...]
[#:struct (name parent) ([f : t] ...)
struct-option ...]
[#:opaque t pred]]
[maybe-renamed id
(orig-id new-id)]
[struct-option
(code:line #:constructor-name constructor-id)
(code:line #:extra-constructor-name constructor-id)])]
This form requires identifiers from the module @racket[m], giving
them the specified types.
The first case requires @racket[r], giving it type @racket[t].
The first case requires @racket[_maybe-renamed], giving it type
@racket[t].
@index["struct"]{The second and third cases} require the struct with name @racket[name]
with fields @racket[f ...], where each field has type @racket[t]. The