My code for 'concat!' in r2591 is correct, but it runs
incorrectly, because there is a compiler bug.
Specifically, this bug happens when there is a single "=>"
expression inside a loop. This bug causes the loop to only
run once.
After some debugging, I'm not sure if this bug happens in
"incExitLevel" in "parseIf".
Example:
)abbrev package TEST Test
Test() : Exp == Imp where
Exp == with
test1 : List Integer -> Integer
Imp == add
test1 l ==
n := 0
while not empty? l repeat
-- 1+1 -- uncomment this line to workaround this bug
first l = 3 =>
n := n + 1
l := rest l
n
===== -- should return 4 instead of 1
(1) -> test1 [3,3,3,3]
(1) 1
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