Mercurial > wow > reaction
comparison lib/LibStub/LibStub.lua @ 28:21bcaf8215ff
- converted to Ace3
- rearranged file layout
- configGUI menus not working right now
| author | Flick <flickerstreak@gmail.com> |
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| date | Mon, 17 Mar 2008 18:24:53 +0000 |
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| children |
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| 27:f1e838841ce1 | 28:21bcaf8215ff |
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| 1 -- LibStub is a simple versioning stub meant for use in Libraries. http://www.wowace.com/wiki/LibStub for more info | |
| 2 -- LibStub is hereby placed in the Public Domain Credits: Kaelten, Cladhaire, ckknight, Mikk, Ammo, Nevcairiel, joshborke | |
| 3 local LIBSTUB_MAJOR, LIBSTUB_MINOR = "LibStub", 2 -- NEVER MAKE THIS AN SVN REVISION! IT NEEDS TO BE USABLE IN ALL REPOS! | |
| 4 local LibStub = _G[LIBSTUB_MAJOR] | |
| 5 | |
| 6 if not LibStub or LibStub.minor < LIBSTUB_MINOR then | |
| 7 LibStub = LibStub or {libs = {}, minors = {} } | |
| 8 _G[LIBSTUB_MAJOR] = LibStub | |
| 9 LibStub.minor = LIBSTUB_MINOR | |
| 10 | |
| 11 function LibStub:NewLibrary(major, minor) | |
| 12 assert(type(major) == "string", "Bad argument #2 to `NewLibrary' (string expected)") | |
| 13 minor = assert(tonumber(strmatch(minor, "%d+")), "Minor version must either be a number or contain a number.") | |
| 14 | |
| 15 local oldminor = self.minors[major] | |
| 16 if oldminor and oldminor >= minor then return nil end | |
| 17 self.minors[major], self.libs[major] = minor, self.libs[major] or {} | |
| 18 return self.libs[major], oldminor | |
| 19 end | |
| 20 | |
| 21 function LibStub:GetLibrary(major, silent) | |
| 22 if not self.libs[major] and not silent then | |
| 23 error(("Cannot find a library instance of %q."):format(tostring(major)), 2) | |
| 24 end | |
| 25 return self.libs[major], self.minors[major] | |
| 26 end | |
| 27 | |
| 28 function LibStub:IterateLibraries() return pairs(self.libs) end | |
| 29 setmetatable(LibStub, { __call = LibStub.GetLibrary }) | |
| 30 end |