The index of the argument of vertex that binds the formal argumentName, R's matching when the formals are known and the argumentIndex-th unnamed argument otherwise.
Pass the formals of the call when they are known already, which saves looking them up again.
The index of the argument of
vertexthat binds the formalargumentName, R's matching when the formals are known and theargumentIndex-th unnamed argument otherwise. Pass theformalsof the call when they are known already, which saves looking them up again.