feat!: use alien-signals for reactivity (#50)

* feat: use alien-signals

* refactor: remove pnpm, fix tests

* fix: `effectScope` should set scope

* fix: check previous value before calling listener

* refactor: improve imports

* refactor: exclude re-exports from wally

* refactor: embrace scope cleanup, restructure code

* fix: update pkgs dir references

* ci: simplify pesde install

* build: install dev deps with wally

* feat: add detached, add more tests

* test: simplify mapped test update

* chore: rephrase doc comment

* perf: optimize subscribe and mapped

* refactor: avoid ambiguous optional function type

* refactor: add assertion error messages

* perf: optimize mapped, add benches

* chore: delete redundant benchmarks

* perf: simplify mapped logic

* test: prettify test library

* test: try different gray

* test: color brackets

* refactor: sync 2.0.4

* refactor: use setCurrentSub instead of pauseTracking

* test: improve test suite

* test: separate parent from root

* refactor: iterate over previous data in mapped

* refactor: improve logic

* style: use `---` doc comments

* refactor: improve logic

* chore: housekeeping

* ci: add pnpm step

* ci: init submodules

* test: use lune

* refactor: improve structure and alien-signals integration

* ci: update test file path

* feat: add peek and roblox-ts types

* feat: add deep freeze flag, misc refactors

* refactor: reduce type casting, housekeeping

* refactor: rewrite untracked, update alien-signals

* chore: update eslint, housekeeping

* refactor: start charm-sync rewrite

* fix: send init payload even if atom did not update

* test: add all sync tests

* feat: prepare for alpha release

* feat: add peek, make untracked escape scope

* fix: wrap hooks in untracked, update types

* feat: add flag for inner effect tracking

* refactor: add docs, remove some modules

* refactor: align with alien-signals 3.0

* feat: add signal api

* refactor: update charm sync api

* feat: update alien-signals

* refactor: remove unnecessary features, update docs

* feat: finalize sync docs

* docs: update sync section

* docs: simplify examples

* docs: capitalize headers

* docs: add migration tips

* docs: fix whitespace

* docs: rephrase computed arg change

* refactor: rename batch, misc fixes & perf updates

* refactor: simplify charm sync validation

* feat: update alien-signals, add recursion flag

* feat: add `recursive()`

* fix: allow dispose in observers

* feat: add `trigger()`, refactor source

* docs: update readme

* chore: prepare release candidate

* test: make some tests more reliable

* docs: fix typo

* feat: add `reactive()`

* chore: bump versions

* docs: reword reactive docs

* docs: fix typo

* feat: add `toRaw()`

* fix: check for nil diffs

* chore: bump versions

* perf: do not create proxies for iteration

* fix: make `toRaw` track all calls

* fix: check none before patching mutable tables

* chore: bump charm-sync version

* docs: add fishing game example project

* feat: sync signals that return reactive proxy

* fix: refine reactive proxy logic

* fix: prevent early reactive gc, alien-signals 3.1.1

* fix: wrap iterated values in `reactive()`

* fix: loosen client signal types

* chore: bump release candidate

* fix: remove unsynced signals immediately

* test: use lute for tests

* chore: bump versions

* ci: set up lute

* refactor: improve source readability

* ci: upgrade lute

* build: loosen workspace version requirements

* chore: bump deps

* fix: update signal overload for setter (#58)

* fix: add missing recursed check

* test: add important vue reactivity tests

* chore: fix react tests, run stylua

* chore: update vide

* docs: improve intro and explain getters

* docs: adjust ordering by importance

* docs: move listen nesting note

* build: fix react peer dep for ci

* chore: update lockfile

* ci: use javascript eslint config

* ci: ignore eslint config file

* refactor: move test directories

* feat: allow recursion in effects by default

* release: charm v0.11.0-rc.4

* refactor: remove recursive()

* refactor: reorganize repo, create deep-charm

* docs: rephrase some sections

* feat: export getter and setter types

* docs: rephrase intro again

* feat!: run listen and subscribe callback in untracked

* refactor!: remove peek

* docs: note peek in migration guide

* release: charm v0.11.0-rc.5

* release: charm-sync v0.4.0-rc.7

* release: react-charm v0.4.0-rc.4

* fix: remove old keys when updating key in `mapped()`

* refactor: shorten error traceback, housekeeping

* refactor: keep error level in some cases

* fix: check if cleanup functions disposed effect

* refactor!: run effects in batched

* ci: check eslint and prettier

* perf: run observe fn in untracked

* perf: call mapper as-is in `mapped()`

* refactor: error for effect cleanup errors

* refactor: use new type solver

* ci: disable new solver flag until 0.714

* chore: housekeeping

* refactor: improve errors in nonstrict, optimize noyield

* chore: housekeeping

* refactor: satisfy new solver

* refactor: improve error traceback

* docs: link roblox signals

* chore: housekeeping

* perf: remove `clearPending` inline operation

* refactor: check type of cleanup

* ci: remove selene

* fix: always return pending value in signal setter

* test: add multi benchmark

* release: charm v0.11.0-rc.6

* test: add cleanup order tests

* chore: bump deps

* docs: add warning for deep-charm and note for `observe()`

---------

Co-authored-by: safazi <safazics@gmail.com>

packages/charm/test/gc.test.luau

@@ -0,0 +1,65 @@
+local Charm = require("../src")
+local test = require("../../../tests/test")
+
+local signal = Charm.signal
+local computed = Charm.computed
+local effect = Charm.effect
+local effectScope = Charm.effectScope
+
+local function weakRef<T>(value: T): { value: T? }
+	return setmetatable({ value = value }, { __mode = "v" }) :: any
+end
+
+local function gc()
+	for _ = 1, 2000 do
+		local _ = table.create(100, 0)
+	end
+end
+
+--[[
+	In alien-signals, a computed value unlinks from dependencies when its last
+	parent scope is disposed. However, calling a computed value outside of a
+	scope still links it to dependencies, which act as strong references.
+	Computed values called in this way won't GC until unlinked from a scope.
+
+	This function releases a computed value by linking it to a scope and then
+	immediately closing it, causing alien-signals to unlink the computed value
+	from its dependencies and allow it to be garbage collected.
+]]
+local function unlink(getter: () -> unknown)
+	effectScope(function()
+		getter()
+	end)()
+end
+
+test("should release computed cache", function()
+	local srcRef = weakRef({})
+	local src, setSrc = signal(srcRef.value)
+	local c = computed(function()
+		return src()
+	end)
+
+	c() -- cache src value
+	setSrc(nil) -- release value
+	unlink(c) -- release computed
+
+	gc()
+	assert(srcRef.value == nil, "should release computed cache")
+end)
+
+test("should not release effect for atom", function()
+	local effectCalls = 0
+	local src, setSrc = signal(0)
+
+	effect(function()
+		effectCalls += 1
+		src()
+	end)
+	assert(effectCalls == 1, "should call effect once")
+
+	gc()
+	setSrc(src() + 1)
+	assert(effectCalls == 2, "should call effect again")
+end)
+
+return {}