SHOW:
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- or go back to the newest paste.
| 1 | function class(constructor) | |
| 2 | namespace = {}
| |
| 3 | namespace.__index = namespace | |
| 4 | namespace.new = function(...) | |
| 5 | local outerSelf = self | |
| 6 | -- aliases | |
| 7 | local this = {}
| |
| 8 | self = this | |
| 9 | -- finish | |
| 10 | setmetatable(this,namespace) | |
| 11 | constructor(unpack(arg)) | |
| 12 | self = outerSelf -- used to allow constructors inside constructors | |
| 13 | return this | |
| 14 | end | |
| 15 | return namespace | |
| 16 | end | |
| 17 | ||
| 18 | -- I COULD MAKE class(namespace,extend,constructor) but new function name is clearer | |
| 19 | function classExtends(extend,constructor) | |
| 20 | namespace = {}
| |
| 21 | namespace.__index = namespace | |
| 22 | namespace.new = function(...) | |
| 23 | local outerSelf = self | |
| 24 | -- aliases | |
| 25 | local this = extend.new() | |
| 26 | self = this | |
| 27 | -- finish | |
| 28 | setmetatable(this,namespace) | |
| 29 | constructor(unpack(arg)) | |
| 30 | self = outerSelf -- used to allow constructors inside constructors | |
| 31 | return this | |
| 32 | end | |
| 33 | return namespace | |
| 34 | end | |
| 35 | ||
| 36 | ---------- | |
| 37 | -- TEST -- | |
| 38 | ---------- | |
| 39 | Test = class(function() | |
| 40 | self.a = 1 | |
| 41 | self.b = 3 | |
| 42 | ||
| 43 | function self:set_a(new_a) | |
| 44 | self.a = new_a | |
| 45 | end | |
| 46 | end) | |
| 47 | ||
| 48 | App = classExtends(Test, function(c) | |
| 49 | print(self.a, self.b, c) | |
| 50 | end) | |
| 51 | ||
| 52 | local o = App.new(6) | |
| 53 | o:set_a(2) | |
| 54 | print(o.a) | |
| 55 | App.new(7) |
