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modified pubsub:subscribe_once to return the wrapper function created so it's possible to unsub if needed

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Max Cahill 2024-08-23 22:42:51 +10:00
parent e10a6bf498
commit 9b8ecf0e0d
1 changed files with 2 additions and 0 deletions
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pubsub.lua
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@ -96,6 +96,7 @@ function pubsub:subscribe(event, callback)
end end
--subscribe to an event, automatically unsubscribe once called --subscribe to an event, automatically unsubscribe once called
--return the function that can be used to unsubscribe early if needed
function pubsub:subscribe_once(event, callback) function pubsub:subscribe_once(event, callback)
local f local f
local called = false local called = false
@ -107,6 +108,7 @@ function pubsub:subscribe_once(event, callback)
end end
end end
self:subscribe(event, f) self:subscribe(event, f)
return f
end end
--unsubscribe from an event --unsubscribe from an event