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$prompt is now its own kind of CPS term.

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* module/language/cps.scm ($prompt): Rework to be its own term kind.
  Now $continue always continues to a single continuation.  Adapt
  callers.
This commit is contained in:
Andy Wingo 2018-01-03 17:17:23 +01:00
parent 29fee39c2a
commit ee15ca1455
22 changed files with 198 additions and 195 deletions
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10
module/language/cps/effects-analysis.scm
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@ -596,11 +596,6 @@ the LABELS that are clobbered by the effects of LABEL."
&no-effects)
((or ($ $fun) ($ $rec) ($ $closure))
(&allocate &unknown-memory-kinds))
(($ $prompt)
;; Although the "main" path just writes &prompt, we don't know what
;; nonlocal predecessors of the handler do, so we conservatively
;; assume &all-effects.
&all-effects)
((or ($ $call) ($ $callk))
&all-effects)
(($ $primcall name param args)
@ -614,6 +609,11 @@ the LABELS that are clobbered by the effects of LABEL."
(expression-effects exp))
(($ $kargs names syms ($ $branch kf kt src op param args))
(primitive-effects param op args))
(($ $kargs names syms ($ $prompt))
;; Although the "main" path just writes &prompt, we don't know
;; what nonlocal predecessors of the handler do, so we
;; conservatively assume &all-effects.
&all-effects)
(($ $kreceive arity kargs)
(match arity
(($ $arity _ () #f () #f) &type-check)