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Diffstat (limited to 'continuation2.mu')
-rw-r--r-- | continuation2.mu | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/continuation2.mu b/continuation2.mu new file mode 100644 index 00000000..dda9d566 --- /dev/null +++ b/continuation2.mu @@ -0,0 +1,27 @@ +# example program showing that a 'paused' continuation can be 'resumed' +# multiple times from the same point (but with changes to data) + +def main [ + local-scope + l:&:list:num <- copy 0 + l <- push 3, l + l <- push 2, l + l <- push 1, l + k:continuation <- call-with-continuation-mark create-yielder, l + { + x:num, done?:bool <- call k + break-if done? + $print x 10/newline + loop + } +] + +def create-yielder l:&:list:num -> n:num, done?:bool [ + local-scope + load-ingredients + return-continuation-until-mark + done? <- equal l, 0 + return-if done?, 0 + n <- first l + l <- rest l +] |