prosody
cbc7eb5cfa8c
util/array.lua

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util/array.lua @ 5085:cbc7eb5cfa8c

util.array: Accept an iterator to the array constructor
author Matthew Wild <mwild1@gmail.com>
date Wed, 08 Aug 2012 11:49:31 +0100
parent 4449:ca74d8ed1a15
child 5564:1292643ac498
comparison
equal deleted inserted replaced
5084:82b9fe0c79c5 5085:cbc7eb5cfa8c
17 local array = {}; 17 local array = {};
18 local array_base = {}; 18 local array_base = {};
19 local array_methods = {}; 19 local array_methods = {};
20 local array_mt = { __index = array_methods, __tostring = function (array) return array:concat(", "); end }; 20 local array_mt = { __index = array_methods, __tostring = function (array) return array:concat(", "); end };
21 21
22 local function new_array(_, t) 22 local function new_array(self, t, _s, _var)
23 if type(t) == "function" then -- Assume iterator
24 t = self.collect(t, _s, _var);
25 end
23 return setmetatable(t or {}, array_mt); 26 return setmetatable(t or {}, array_mt);
24 end 27 end
25 28
26 function array_mt.__add(a1, a2) 29 function array_mt.__add(a1, a2)
27 local res = new_array(); 30 local res = new_array();