CurryInfo: contract-prover-4.0.0 / ContractProver.renamePatternVars
definition: 
|
renamePatternVars :: TABranchExpr -> TransStateM TABranchExpr
renamePatternVars (ABranch p e) =
if isConsPattern p
then do
fv <- getFreshVarIndex
let args = map fst (patArgs p)
minarg = minimum (0 : args)
maxarg = maximum (0 : args)
rnm i = if i `elem` args then i - minarg + fv else i
nargs = map (\ (v,t) -> (rnm v,t)) (patArgs p)
setFreshVarIndex (fv + maxarg - minarg + 1)
addVarTypes nargs
return $ ABranch (updPatArgs (map (\ (v,t) -> (rnm v,t))) p)
(rnmAllVars rnm e)
else return $ ABranch p e
|
|
demand:
|
argument 1 |
|
deterministic:
|
deterministic operation |
|
documentation:
|
Rename argument variables of constructor pattern |
|
failfree:
|
<FAILING> |
|
indeterministic:
|
referentially transparent operation |
|
infix:
|
no fixity defined |
|
iotype:
|
{({ABranch}) |-> _}
|
|
name:
|
renamePatternVars |
|
precedence:
|
no precedence defined |
|
result-values:
|
_ |
|
signature:
|
FlatCurry.Annotated.Types.ABranchExpr FlatCurry.Types.TypeExpr -> Control.Monad.Trans.State.StateT TransState Prelude.IO (FlatCurry.Annotated.Types.ABranchExpr FlatCurry.Types.TypeExpr) |
|
solution-complete:
|
operation might suspend on free variables |
|
terminating:
|
possibly non-terminating |
|
totally-defined:
|
possibly non-reducible on same data term |