| definition: |
isNondetDefined :: FuncDecl -> Bool
isNondetDefined (Func f _ _ _ rule) =
f `notElem` (map pre ["failed","$!!","$##","normalForm","groundNormalForm"])
-- these operations are internally defined in PAKCS with extra variables
&& isNondetRule rule
where
isNondetRule (Rule _ e) = orInExpr e || extraVarInExpr e
isNondetRule (External _) = f==("Prelude","?")
|
| demand: |
argument 1 |
| deterministic: |
deterministic operation |
| documentation: |
-- Is a function f defined to be potentially non-deterministic, i.e., -- is the rule non-deterministic or does it contain extra variables? |
| failfree: |
_ |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{({Func}) |-> _}
|
| name: |
isNondetDefined |
| precedence: |
no precedence defined |
| result-values: |
_ |
| signature: |
FlatCurry.Types.FuncDecl -> Prelude.Bool |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
possibly non-terminating |
| totally-defined: |
reducible on all ground data terms |