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definition:
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allFreeVars :: Expr -> [Int]
allFreeVars e = trExpr (:) (const id) comb lt fr (.) cas branch const e []
where
comb _ _ = foldr (.) id
lt bs exp = (filter (`notElem` (map fst bs))) . exp . foldr (.) id (map snd bs)
fr vs exp = (filter (`notElem` vs)) . exp
cas _ exp bs = exp . foldr (.) id bs
branch pat exp = (filter (`notElem` (args pat))) . exp
args pat | isConsPattern pat = patArgs pat
| otherwise = []
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demand:
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argument 1
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deterministic:
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deterministic operation
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documentation:
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Gets all free variables (i.e., without let/free/pattern bound variables)
occurring in an expression.
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failfree:
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<FAILING>
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indeterministic:
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referentially transparent operation
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infix:
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no fixity defined
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iotype:
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{(_) |-> _}
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name:
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allFreeVars
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precedence:
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no precedence defined
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result-values:
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_
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signature:
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FlatCurry.Types.Expr -> [Prelude.Int]
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solution-complete:
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operation might suspend on free variables
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terminating:
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possibly non-terminating
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totally-defined:
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possibly non-reducible on same data term
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