| definition: |
tRoot :: Term f -> Either VarIdx f tRoot (TermVar v) = Left v tRoot (TermCons c _) = Right c |
| demand: |
argument 1 |
| deterministic: |
deterministic operation |
| documentation: |
--- Returns the root symbol (variable or constructor) of a term. |
| failfree: |
_ |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{({TermVar}) |-> {Left} || ({TermCons}) |-> {Right}}
|
| name: |
tRoot |
| precedence: |
no precedence defined |
| result-values: |
{Left,Right}
|
| signature: |
Term a -> Prelude.Either Prelude.Int a |
| solution-complete: |
operationally complete operation |
| terminating: |
yes |
| totally-defined: |
reducible on all ground data terms |