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module SimpleTest
from StdOverloaded import class zero(..), class toString(..)
import Common
import WhileLexer
import Simple
import SimpleParse
Start = val "z"
where
lexed :: Either Error [Token]
lexed = lex ['x := 30; z := 0; o := 1; s := 1; while s <= x do (z := z+1; o := o+2; s := s+o)']
parsed :: Either Error Stm
parsed = lexed >>= parse
val :: Var -> Either Error Int
val v = parsed >>= \pgm -> run pgm zero >>= eval (Var v)
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