internal virtual LambdaForm CollectArgumentsForm(int pos, MethodType collectorType)
{
int collectorArity = collectorType.ParameterCount();
bool dropResult = (collectorType.ReturnType() == typeof(void));
if (collectorArity == 1 && !dropResult)
{
return(FilterArgumentForm(pos, basicType(collectorType.ParameterType(0))));
}
BasicType[] newTypes = BasicType.basicTypes(collectorType.ParameterList());
Transform.Kind kind = (dropResult ? Transform.Kind.COLLECT_ARGS_TO_VOID : Transform.Kind.COLLECT_ARGS);
if (dropResult && collectorArity == 0) // pure side effect
{
pos = 1;
}
Transform key = Transform.Of(kind, pos, collectorArity, BasicType.basicTypesOrd(newTypes));
LambdaForm form = GetInCache(key);
if (form != null)
{
assert(form.Arity_Renamed == LambdaForm.Arity_Renamed - (dropResult ? 0 : 1) + collectorArity);
return(form);
}
form = MakeArgumentCombinationForm(pos, collectorType, false, dropResult);
return(PutInCache(key, form));
}