24 lines
577 B
Plaintext
24 lines
577 B
Plaintext
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# example program showing that 'return-continuation-until-mark' can 'pause' a
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# function call, returning a continuation, and that calling the continuation
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# can 'resume' the paused function call.
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def main [
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local-scope
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k:continuation <- call-with-continuation-mark create-yielder
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{
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x:num, done?:bool <- call k # should return 1
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break-if done?
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$print x 10/newline
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loop
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}
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]
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def create-yielder -> n:num, done?:bool [
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local-scope
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load-ingredients
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n <- copy 0
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return-continuation-until-mark
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done?:bool <- greater-or-equal n, 3
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n <- add n, 1
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]
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