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Extended type signatures for addition.

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This commit is contained in:
Vincent St-Amour 2010-06-28 20:13:21 -04:00
parent 06b636b2e3
commit e8c42cd20c
1 changed files with 11 additions and 3 deletions
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14
collects/typed-scheme/private/base-env-numeric.rkt
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@ -97,7 +97,9 @@
(list (->* (list) -InexactComplex -InexactComplex))
(list (->* (list) N N))))]
[+ (apply cl->*
(append (for/list ([t (list -Pos -Nat -Integer -ExactRational -Flonum)]) (->* (list) t t))
(append (list (->* (list -Pos) -Nat -Pos))
(list (->* (list -Nat) -Pos -Pos))
(for/list ([t (list -Nat -Integer -ExactRational -Flonum)]) (->* (list) t t))
;; special cases for promotion to inexact, not exhaustive
;; valid for + and -, but not for * and /, since (* <float> 0) is exact 0 (i.e. not a float)
(list (->* (list -Flonum) -Real -Flonum))
@ -311,7 +313,10 @@
[unsafe-flsqrt fl-unop]
[unsafe-fx->fl (-Integer . -> . -Flonum)]
[unsafe-fx+ fx-op]
[unsafe-fx+ (cl->* (-Pos -Nat . -> . -PositiveFixnum)
(-Nat -Pos . -> . -PositiveFixnum)
(-Nat -Nat . -> . -NonnegativeFixnum)
(-Integer -Integer . -> . -Fixnum))]
[unsafe-fx- fx-intop]
[unsafe-fx* fx-op]
[unsafe-fxquotient fx-intop]
@ -336,7 +341,10 @@
;; scheme/fixnum
[fx+ fx-op]
[fx+ (cl->* (-Pos -Nat . -> . -PositiveFixnum)
(-Nat -Pos . -> . -PositiveFixnum)
(-Nat -Nat . -> . -NonnegativeFixnum)
(-Integer -Integer . -> . -Fixnum))]
[fx- fx-intop]
[fx* fx-op]
[fxquotient fx-intop]