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avoid calling normalize-type outside of shallow tr #1296

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Merged
merged 1 commit into from
Dec 13, 2022
Merged

avoid calling normalize-type outside of shallow tr #1296

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7 changes: 5 additions & 2 deletions typed-racket-lib/typed-racket/utils/shallow-utils.rkt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,14 +11,17 @@
(submod typed-racket/rep/type-rep shallow-exports)
typed-racket/types/tc-result
typed-racket/types/type-table
typed-racket/types/union)
typed-racket/types/union
typed-racket/utils/tc-utils)


(define (ArrowT+? arr)
(and (Arrow? arr) (Arrow-rng-shallow-safe? arr)))

(define (shallow-trusted-positive? orig-ty)
(let loop ((ty (normalize-type orig-ty)))
(define in-shallow? (eq? shallow (current-type-enforcement-mode)))
;; 2022-12-12: normalize only in shallow mode to save time
(let loop ((ty ((if in-shallow? normalize-type values) orig-ty)))
(match ty
[(Fun: arr*)
(andmap ArrowT+? arr*)]
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