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cs: avoid unnecessary work in exception handler

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This commit is contained in:
Matthew Flatt 2018-08-18 15:25:11 -06:00
parent ae4b101ec5
commit 40b5fffb80
2 changed files with 4 additions and 1 deletions
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3
racket/src/cs/rumble/control.ss
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@ -1226,6 +1226,9 @@
(cons (continuation->trace k)
(get-metacontinuation-traces (current-metacontinuation))))))]))
(define/who (current-continuation-marks/no-trace)
(make-continuation-mark-set (current-mark-chain) null))
;; Wrapped a threads layer to handle thread arguments:
(define/who continuation-marks
(case-lambda

2
racket/src/cs/rumble/error.ss
View File

@ -692,7 +692,7 @@
(not (non-continuable-violation? v)))
(log-system-message 'warning (exn->string exn))]
[else
(let ([hs (continuation-mark-set->list (current-continuation-marks the-root-continuation-prompt-tag)
(let ([hs (continuation-mark-set->list (current-continuation-marks/no-trace)
exception-handler-key
the-root-continuation-prompt-tag)]
[init-v (condition->exn v)])