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refactor!: use atom functions

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This commit is contained in:
Richard 2024-03-25 02:18:10 -07:00
parent 4d4979daa9
commit 5be8e27296
29 changed files with 362 additions and 574 deletions
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35
src/mapAtom.luau
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@ -1,23 +1,21 @@
local atom = require(script.Parent.atom)
type Atom<T> = atom.Atom<T>
type ReadonlyAtom<T> = atom.ReadonlyAtom<T>
local reference = require(script.Parent.utils.reference)
local subscribe = require(script.Parent.subscribe)
local types = require(script.Parent.types)
type Atom<T> = types.Atom<T>
type ReadonlyAtom<T> = types.ReadonlyAtom<T>
local function mapAtom<K0, V0, K1, V1>(itemsAtom: Atom<{ [K0]: V0 }>, mapper: (V0, K0) -> (V1?, K1?)): ReadonlyAtom<{ [K1]: V1 }>
local mappedAtom: ReadonlyAtom<{ [K1]: V1 }> = atom({}):readonly()
local mappedAtomUnmount = mappedAtom.unmount
local getMappedAtom = reference.weak(mappedAtom)
local mappedAtom = atom({})
local mappedAtomRef = setmetatable({ current = mappedAtom }, { __mode = "v" })
local previousMappedItems: { [K1]: V1 } = {}
local unsubscribe
local function listener(items)
local mappedAtom = getMappedAtom()
if not mappedAtom then
itemsAtom.listeners[listener] = nil
return
local function listener(items: { [K0]: V0 })
if not mappedAtomRef.current then
return unsubscribe()
end
local mappedItems = table.clone(mappedAtom:get())
local mappedItems = table.clone(mappedAtomRef.current())
local mappedKeys = {}
for key, item in items do
@ -39,16 +37,11 @@ local function mapAtom<K0, V0, K1, V1>(itemsAtom: Atom<{ [K0]: V0 }>, mapper: (V
end
previousMappedItems = mappedItems
mappedAtom:setForced(mappedItems)
mappedAtom(mappedItems)
end
function mappedAtom:unmount()
mappedAtomUnmount(self)
itemsAtom.listeners[listener] = nil
end
itemsAtom.listeners[listener] = true
listener(itemsAtom:get())
unsubscribe = subscribe(itemsAtom, listener)
listener(itemsAtom())
return mappedAtom
end