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path: root/immutable-error.mu
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# compare mutable.mu

def main [
  local-scope
  x:&:num <- new number:type
  foo x
]

def foo x:&:num [
  local-scope
  load-inputs
  *x <- copy 34  # will cause an error because x is immutable in this function
]
span>k <- call k $print [caller 2] 10/newline call k ] def f [ local-scope $print [callee 0] 10/newline return-continuation-until-mark $print [callee 1] 10/newline return-continuation-until-mark $print [callee 2] 10/newline ]