syndicate-lang
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syndicate-rkt
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once

This commit is contained in:
Tony Garnock-Jones 2021-06-18 22:19:54 +02:00
parent dfd51a5235
commit 6fe031e678
1 changed files with 4 additions and 0 deletions
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syndicate/syntax.rkt
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@ -34,6 +34,7 @@
this-target
at
assert
once
stop-on
on
during
@ -320,6 +321,9 @@
(->preserve expr)
(void)))))))])))
(define-syntax-rule (once [event expr ...] ...)
(react (stop-on event expr ...) ...))
(define-syntax-rule (stop-on event expr ...)
(on event (stop-current-facet expr ...)))