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Adjust finalization #783

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Adjust finalization #783

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13 changes: 10 additions & 3 deletions lib/std/core/hnd.kk
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Original file line number Diff line number Diff line change
Expand Up @@ -546,9 +546,16 @@ pub fun resume-shallow( r : resume-context<b,e,e0,r>, x : b ) : e0 r
cast-ev1(r.k)(Shallow(x))


pub fun finalize( r : resume-context<b,e,e0,r>, x : r ) : e r
//finalize(r.k,x)
(r.k)(Finalize(x))
// Applying the continuation with an immediate throw restores the handler which expects a return type `r`
// But because we are manually finalizing out of context, we are returning in a new context
// where only `()` makes sense, because we do not want to require a dummy value to finalize
extern unsafe-cast-unit-context(r: resume-context<b,e,e0,r>): resume-context<b,e,e0,()>
c inline "#1"
js inline "#1"

pub fun finalize( r : resume-context<b,e,e0,r> ) : e ()
// finalize(r.k,x)
(unsafe-cast-unit-context(r).k)(Finalize(()))

// -------------------------------------------
// Clauses
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