prosody
2a7ef5fcaa77
util/array.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Comparison

util/array.lua @ 7976:2a7ef5fcaa77

util.array: Add O(n) equality check metamethod
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2017 19:09:57 +0100
parent 7700:0d70410efdcf
child 8017:ec7cab8e744d
comparison
equal deleted inserted replaced
7975:c64ddee9d671 7976:2a7ef5fcaa77
29 end 29 end
30 30
31 function array_mt.__add(a1, a2) 31 function array_mt.__add(a1, a2)
32 local res = new_array(); 32 local res = new_array();
33 return res:append(a1):append(a2); 33 return res:append(a1):append(a2);
34 end
35
36 function array_mt.__eq(a, b)
37 if #a == #b then
38 for i = 1, #a do
39 if a[i] ~= b[i] then
40 return false;
41 end
42 end
43 else
44 return false;
45 end
46 return true;
34 end 47 end
35 48
36 setmetatable(array, { __call = new_array }); 49 setmetatable(array, { __call = new_array });
37 50
38 -- Read-only methods 51 -- Read-only methods