Document new features to conns, todo fix newTask

docs/changes.md

@@ -367,6 +367,46 @@ Added
 		return cn
 	end
 	```
+- The len operator `#` will return the number of connections in the object!
+	```
+		local conn = multi:newConnection()
+		conn(function() print("Test 1") end)
+		conn(function() print("Test 2") end)
+		conn(function() print("Test 3") end)
+		conn(function() print("Test 4") end)
+		print(#conn)
+	```
+	Output:
+	```
+	4
+	```
+- Connection objects can be negated -conn returns self so conn = -conn, reverses the order of connection events
+	```lua
+	local conn = multi:newConnection()
+	conn(function() print("Test 1") end)
+	conn(function() print("Test 2") end)
+	conn(function() print("Test 3") end)
+	conn(function() print("Test 4") end)
+
+	print("Fire 1")
+	conn:Fire()
+	conn = -conn
+	print("Fire 2")
+	conn:Fire()
+	```
+	Output:
+	```
+	Fire 1
+	Test 1
+	Test 2
+	Test 3
+	Test 4
+	Fire 2
+	Test 4
+	Test 3
+	Test 2
+	Test 1
+	```
 - Connection objects can be divided, function / connection
 	This is a mix between the behavior between mod and concat, where the original connection can forward it's events to the new one as well as do a check like concat can. View it's implementation below:
 	```lua

init.lua

@@ -196,7 +196,8 @@ function multi:newConnection(protect,func,kill)
 	c.rawadd = false
 	c.Parent = self
 
-	setmetatable(c,{__call=function(self,...)
+	setmetatable(c,{
+		__call=function(self,...)
 		local t = ...
 		if type(t)=="table" then
 			for i,v in pairs(t) do
@@ -214,6 +215,14 @@ function multi:newConnection(protect,func,kill)
 			return self:Connect(...)
 		end
 	end,
+	__unm = function(obj) -- -obj Reverses the order of connected events
+		local conns = obj:Bind({})
+		for i = #conns, 1, -1 do
+			obj.rawadd = true
+			obj(conns[i])
+		end
+		return obj
+	end,
 	__mod = function(obj1, obj2) -- %
 		local cn = self:newConnection()
 		if type(obj1) == "function" and type(obj2) == "table" then
@@ -267,6 +276,8 @@ function multi:newConnection(protect,func,kill)
 					end
 				end)
 			end
+		elseif type(obj1) == "table" and type(obj2) == "table" then
+			-- 
 		else
 			error("Invalid concat!", type(obj1), type(obj2),"Expected function/connection(table), connection(table)/function")
 		end
@@ -391,6 +402,7 @@ function multi:newConnection(protect,func,kill)
 	function c:Unconnect(conn)
 		for i = 1, #fast do
 			if fast[conn.ref] == fast[i] then
+				table.remove(self)
 				return table.remove(fast, i), i
 			end
 		end
@@ -466,6 +478,7 @@ function multi:newConnection(protect,func,kill)
 		if self.rawadd then
 			self.rawadd = false
 		else
+			table.insert(self,true)
 			self.__connectionAdded(temp, func)
 		end
 		return temp

tests/test.lua

@@ -90,15 +90,28 @@ multi, thread = require("multi"):init{print=true,warn=true,error=true,debugging=
 -- 	a:Destroy()
 -- end)
 
-local func = thread:newFunction(function()
-	thread.sleep(4)
-	print("Hello!")
-end)
+-- local func = thread:newFunction(function()
+-- 	thread.sleep(4)
+-- 	print("Hello!")
+-- end)
 
-multi:newTLoop(func, 1)
+-- multi:newTLoop(func, 1)
 
-multi:mainloop()
+-- multi:mainloop()
 
+local conn = multi:newConnection()
+conn(function() print("Test 1") end)
+conn(function() print("Test 2") end)
+conn(function() print("Test 3") end)
+conn(function() print("Test 4") end)
+
+print("Fire 1")
+conn:Fire()
+conn = -conn
+print("Fire 2")
+conn:Fire()
+
+print(#conn)
 
 -- local conn1, conn2, conn3 = multi:newConnection(nil,nil,true), multi:newConnection(), multi:newConnection()