slot0 = coroutine.create
slot1 = coroutine.running
slot2 = coroutine.resume
slot3 = coroutine.yield
slot4 = error
slot5 = unpack
slot6 = debug
slot7 = FrameTimer
slot8 = CoTimer
slot10 = {}

setmetatable({}, {
	__mode = "kv"
})

function coroutine.start(slot0, ...)
	slot1 = uv0(slot0)

	if uv1() == nil then
		slot2, slot3 = uv2(slot1, ...)

		if not slot2 then
			uv3(uv4.traceback(slot1, slot3))
		end
	else
		slot2 = {
			len = select("#", ...),
			...
		}
		slot3 = nil

		if #uv7 > 0 then
			table.remove(uv7):Reset(function ()
				uv0[uv1] = nil
				uv2.func = nil
				slot0, slot1 = uv3(uv1, uv4(uv5, 1, uv5.len))

				table.insert(uv6, uv2)

				if not slot0 then
					uv2:Stop()
					uv7(uv8.traceback(uv1, slot1))
				end
			end, 0, 1)
		else
			slot3 = uv8.New(slot4, 0, 1)
		end

		uv5[slot1] = slot3

		slot3:Start()
	end

	return slot1
end

function coroutine.wait(slot0, slot1, ...)
	slot2 = {
		len = select("#", ...),
		...
	}
	slot3 = nil
	slot3 = uv6.New(function ()
		uv0[uv1] = nil
		uv2.func = nil
		slot0, slot1 = uv3(uv1, uv4(uv5, 1, uv5.len))

		if not slot0 then
			uv2:Stop()
			uv6(uv7.traceback(uv1, slot1))

			return
		end
	end, slot0, 1)
	uv1[slot1 or uv0()] = slot3

	slot3:Start()

	return uv7()
end

function coroutine.step(slot0, slot1, ...)
	slot2 = {
		len = select("#", ...),
		...
	}
	slot1 = slot1 or uv0()
	slot3 = nil

	if #uv4 > 0 then
		table.remove(uv4):Reset(function ()
			uv0[uv1] = nil
			uv2.func = nil
			slot0, slot1 = uv3(uv1, uv4(uv5, 1, uv5.len))

			table.insert(uv6, uv2)

			if not slot0 then
				uv2:Stop()
				uv7(uv8.traceback(uv1, slot1))

				return
			end
		end, slot0 or 1, 1)
	else
		slot3 = uv7.New(slot4, slot0 or 1, 1)
	end

	uv1[slot1] = slot3

	slot3:Start()

	return uv8()
end

function coroutine.www(slot0, slot1)
	slot1 = slot1 or uv0()
	slot2 = nil

	if #uv3 > 0 then
		table.remove(uv3):Reset(function ()
			if not uv0.isDone then
				return
			end

			uv1[uv2] = nil

			uv3:Stop()

			uv3.func = nil
			slot0, slot1 = uv4(uv2)

			table.insert(uv5, uv3)

			if not slot0 then
				uv6(uv7.traceback(uv2, slot1))

				return
			end
		end, 1, -1)
	else
		slot2 = uv6.New(slot3, 1, -1)
	end

	uv1[slot1] = slot2

	slot2:Start()

	return uv7()
end

function coroutine.stop(slot0)
	if uv0[slot0] ~= nil then
		uv0[slot0] = nil

		slot1:Stop()

		slot1.func = nil
	end
end