Lua cascade operator. This has issues with Lua's expression-versus-statement policies, so it can be slightly ambiguous

cascade.lua

local function table_copy(source, target)
	target = target or {}

	for key, value in pairs(source) do
		target[key] = value
	end

	return target
end

setmetatable(_G, {
	__index = function(self, key)
		local proxy = newproxy(true)
		getmetatable(proxy).__bare = key
		return proxy
	end
})

local cascading = {
	new = function(self)
		return table_copy(self)
	end,

	make = function(self, target)
		table_copy(self, target)
		setmetatable(target, getmetatable(self))

		return target
	end
}
setmetatable(cascading, {
	__concat = function(first, second)
		local method_name = getmetatable(second).__bare
		for key, value in ipairs(first) do
			value[method_name](value)
		end

		return function()
		end
	end
})

local objects = cascading:make {
	{
		draw = function(self)
			print("I'm drawing! I'm object 1!")
		end
	},
	{
		draw = function(self)
			print("I'm drawing too! I'm object 2!")
		end
	}
}

;(objects..draw)()