Motoko 0.11 `<system>` not working for class bodies?
Gekctek opened this issue · comments
From what I understand the classes should just put a type as the first type and calling system functions should work.
But I have this code and
public class Dao<system, TProposalContent>(
data : StableData<TProposalContent>,
onExecute : Proposal<TProposalContent> -> async* (),
onReject : Proposal<TProposalContent> -> async* (),
) {
// ....
public func resetEndTimers<system>() {
for (proposal in proposals.vals()) {
switch (proposal.endTimerId) {
case (null) ();
case (?id) Timer.cancelTimer(id);
};
proposal.endTimerId := null;
if (proposal.status == #open) {
let proposalDurationNanoseconds = durationToNanoseconds(proposalDuration);
let endTimerId = createEndTimer<system>(proposal.id, proposalDurationNanoseconds);
proposal.endTimerId := ?endTimerId;
};
};
};
// ...
resetEndTimers<system>(); // Always reset end timers on initIt gives me an error with resetEndTimers about system capability required, but not available
Am I doing this right? It seems from the docs that classes are allowed
Yes, I think that's a bug. Thanks for reporting it!
A temporary workaround might be to define the class as a type definition, without the system parameter, and a function, with the parameter returning an object. But I haven't actually tried that.
Right, I believe this currently only works with actor. Thanks for the report!
This is a bit weird, as only method calls are flagged, calls to top-level functions not!
import { debugPrint; setTimer } = "mo:⛔";
class Sys<system>() {
func indirect<system>() {
ignore setTimer<system>(0, false, func () : async () { debugPrint "YEPYEP!" });
};
ignore setTimer<system>(0, false, func () : async () { debugPrint "YEP!" }); // No error
indirect<system>(); // Error!!
}@Gekctek try to prepend ignore to the problematic line as a workaround. This puts the type checker into checking mode (as opposed to inferring mode), and that may be the crucial difference.