feat: use alien-signals

tests/benchmarks/propagate.luau

@@ -0,0 +1,61 @@
+local Charm = require("../../packages/charm/src/lib")
+
+local atom = Charm.atom
+local computed = Charm.computed
+local effect = Charm.effect
+
+local signals = require("../../packages/charm/src/signals")
+
+local signal = signals.signal
+local computedSignal = signals.computed
+local effectSignal = signals.effect
+
+local w = 10
+local h = 10
+
+local function bench(name: string, test: () -> ())
+	local start = os.clock()
+	local iter = 0
+	for _ = 1, 15000 do
+		iter += 1
+		test()
+	end
+	local endTime = os.clock()
+	local elapsed = endTime - start
+	print(`{name}: {elapsed / iter * 1000 * 1000} us/iter`)
+end
+
+bench(`charm {w} * {h}`, function()
+	local src = atom(1)
+	for _ = 1, w do
+		local last = src
+		for _ = 1, h do
+			local prev = last
+			last = computed(function()
+				return prev() + 1
+			end)
+		end
+		effect(function()
+			last()
+		end)
+	end
+	src(src() + 1)
+end)
+
+bench(`alien-signals {w} * {h}`, function()
+	local src = signal(1)
+	for _ = 1, w do
+		local last = src
+		for _ = 1, h do
+			local prev = last
+			last = computedSignal(function()
+				return prev() + 1
+			end)
+		end
+		effectSignal(function()
+			last()
+			return nil
+		end)
+	end
+	src(src() + 1)
+end)