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document define-metafunction's contract patterns properly

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closes PR 13613
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Robby Findler 2013-03-17 08:47:13 -05:00
parent 0dd7d8f60b
commit 4bfd6ff6e3
1 changed files with 7 additions and 1 deletions
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8
collects/redex/scribblings/ref.scrbl
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@ -32,6 +32,12 @@
#'((tech (racketvarfont "pattern")) args ...)]
[x (identifier? #'x) #'(tech (racketvarfont "pattern"))]))
@(define-syntax (ttpattern-sequence stx)
(syntax-case stx ()
[(_ args ...)
#'((tech #:key "pattern" (racketvarfont "pattern-sequence")) args ...)]
[x (identifier? #'x) #'(tech #:key "pattern" (racketvarfont "pattern-sequence"))]))
@(define-syntax (pattern stx)
(syntax-case stx ()
[(_ args ...)
@ -1082,7 +1088,7 @@ reduce it further).
[(name @#,ttpattern ...) @#,tttterm metafunction-extras ...]
...)
([metafunction-contract (code:line)
(code:line id : @#,ttpattern ... -> range)]
(code:line id : @#,ttpattern-sequence ... -> range)]
[range @#,ttpattern
(code:line @#,ttpattern or range)
(code:line @#,ttpattern ∨ range)