library-mirrors/middleclass
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__gc metamethod for 5.3

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kikito 2015-10-12 13:39:35 +02:00
parent 8043c7214d
commit 512e6c2968
2 changed files with 20 additions and 4 deletions
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6
middleclass.lua
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@ -97,9 +97,9 @@ end
local Object = _createClass("Object", nil)
Object.static.__metamethods = { '__add', '__call', '__concat', '__div', '__ipairs', '__le',
'__len', '__lt', '__mod', '__mul', '__pairs', '__pow', '__sub',
'__tostring', '__unm'}
Object.static.__metamethods = { '__add', '__band', '__bor', '__bxor', '__bnot', '__call', '__concat', '__div', '__eq',
'__gc', '__ipairs', '__idiv', '__le', '__len', '__lt', '__metatable', '__mod', '__mode',
'__mul', '__pairs', '__pow', '__sh1', '__shr', '__sub', '__tostring', '__unm' }
function Object.static:allocate()
assert(type(self) == 'table', "Make sure that you are using 'Class:allocate' instead of 'Class.allocate'")

18
spec/metamethods_spec.lua
View File

@ -5,6 +5,10 @@ local function is_lua_5_2_compatible()
return type(rawlen) == 'function'
end
local function is_lua_5_3_compatible()
return type(string.unpack) == 'function'
end
describe('Metamethods', function()
describe('Custom Metamethods', function()
@ -48,6 +52,10 @@ describe('Metamethods', function()
local a = Vector:new(1,2,3)
local b = Vector:new(2,4,6)
function Vector.__gc(a)
b.x, b.y, b.z = a.x, a.y, a.z
end
for metamethod,values in pairs({
__tostring = { tostring(a), "Vector[1,2,3]" },
__eq = { a, a},
@ -60,7 +68,7 @@ describe('Metamethods', function()
__concat = { a..b, 28 },
__call = { a(), math.sqrt(14) },
__pow = { a^b, Vector(0,0,0) },
__mul = { 4*a, Vector(4,8,12) }
__mul = { 4*a, Vector(4,8,12) },
--__index = { b[1], 3 }
}) do
describe(metamethod, function()
@ -100,6 +108,14 @@ describe('Metamethods', function()
end
if is_lua_5_3_compatible() then
describe('__gc', function()
a = nil
collectgarbage()
assert.are.same({b.x, b.y, b.z}, {1,2,3})
end)
end
describe('Inherited Metamethods', function()
local Vector2= class('Vector2', Vector)
function Vector2:initialize(x,y,z) Vector.initialize(self,x,y,z) end