initial

1 files changed, 38 insertions, 0 deletions

diff --git a/class.lua b/class.lua
new file mode 100644
index 0000000..c9fb87b
--- /dev/null
+++ b/class.lua
@@ -0,0 +1,38 @@
+-- minimal class library
+--
+-- 	local Foo = class()
+-- 	function Foo.make(cls, x,y,z)
+-- 		return setmetatable({x=x,y=y,z=z},cls)
+-- 	end
+-- 	function Foo.whatever(self, ...)
+-- 		...
+-- 	end
+-- 	...
+-- 	local foo = Foo:make(...)
+-- 	foo:whatever(...)
+
+
+local function class()
+	local T = {}
+	T.__index = T
+	return T
+end
+
+local function extend(Base)
+	local T = {}
+	T.__index = T
+	for k,v in pairs(Base) do
+		if k:sub(1,2) == "__" and k~="__index" then
+			T[k]=v
+		end
+	end
+	setmetatable(T,{__index=Base})
+	return T
+end
+
+return setmetatable({
+	class=class,
+	extend=extend
+},{__call=class})
+
+