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definition:
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fcNot :: Expr -> Expr
fcNot e = case e of
Comb ConsCall qf [] | qf == pre "False" -> fcTrue
| qf == pre "True" -> fcFalse
Comb FuncCall qf [e1] | qf == pre "not" -> e1
Comb FuncCall qf [e1,e2] | qf == pre "&&" -> fcOr (fcNot e1) (fcNot e2)
| qf == pre "||" -> fcAnd (fcNot e1) (fcNot e2)
Case ct ce brs -> Case ct ce (map (\(Branch p be) -> Branch p (fcNot be)) brs)
_ -> Comb FuncCall (pre "not") [e]
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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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--- Negation of an expression.
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failfree:
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_
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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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{({Comb}) |-> _ || ({Case}) |-> {Case} || ({Var}) |-> _ || ({Lit}) |-> _ || ({Let}) |-> _ || ({Free}) |-> _ || ({Or}) |-> _ || ({Typed}) |-> _}
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name:
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fcNot
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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 -> FlatCurry.Types.Expr
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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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