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| − | Minimal Lua class library in 13 lines of code: https://github.com/evolbug/lua-clasp <br />
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| − | <source lang="lua">
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| − | class = require "clasp"
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| − |
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| − | -- Basic class
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| − | Vector = class {
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| − | isVector = true; -- static values
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| − | init = function(self, x, y) -- initializer function
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| − | self.x = x
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| − | self.y = y
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| − | end;
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| − | }
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| − | a = Vector(10, 10)
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| − | print('Vector:', a.x, a.y, a.isVector)
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| − |
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| − |
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| − | -- Inheritance
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| − | Vector3 = Vector:extend {
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| − | init = function(self, x, y, z) -- function overriding
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| − | Vector.init(self, x, y) -- superclass method call
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| − | self.z = z
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| − | end;
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| − | }
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| − | b = Vector3(1, 2, 3)
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| − | print('Vector3:', b.x, b.y, b.z, b.isVector)
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| − |
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| − |
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| − | -- Metamethods
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| − | Point = class {
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| − | init = function(self, x, y)
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| − | self.x = x
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| − | self.y = y
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| − | end;
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| − | __meta = { -- metamethod table
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| − | __tostring = function(self)
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| − | return 'Point('..tostring(self.x)..', '..tostring(self.y)..')'
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| − | end;
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| − | };
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| − | }
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| − | c = Point(15, 25)
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| − | print(c)
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| − | </source>
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| − | {{#set:Name=clasp}}
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| − | {{#set:LOVE Version=Any}}
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| − | {{#set:Description=Tiny Lua class library}}
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| − | {{#set:Keyword=Class}}
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| − | [[Category:Libraries]]
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