annotate modules/FuBar_ReActionFu/lib/LibRock-1.0/LibStub/LibStub.lua @ 30:0d95ce7a9ec2

- added Ace3 externs - converted ReAction_ConfigUI to use blizzard interface addons panel via AceConfigDialog-3.0 - partially converted FuBar module to LibRock, deprecated it (going to remove it entirely later) - cleaned up a couple other tidbits
author Flick <flickerstreak@gmail.com>
date Wed, 02 Apr 2008 23:31:13 +0000
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flickerstreak@30 1 -- LibStub is a simple versioning stub meant for use in Libraries. http://www.wowace.com/wiki/LibStub for more info
flickerstreak@30 2 -- LibStub is hereby placed in the Public Domain Credits: Kaelten, Cladhaire, ckknight, Mikk, Ammo, Nevcairiel, joshborke
flickerstreak@30 3 local LIBSTUB_MAJOR, LIBSTUB_MINOR = "LibStub", 2 -- NEVER MAKE THIS AN SVN REVISION! IT NEEDS TO BE USABLE IN ALL REPOS!
flickerstreak@30 4 local LibStub = _G[LIBSTUB_MAJOR]
flickerstreak@30 5
flickerstreak@30 6 if not LibStub or LibStub.minor < LIBSTUB_MINOR then
flickerstreak@30 7 LibStub = LibStub or {libs = {}, minors = {} }
flickerstreak@30 8 _G[LIBSTUB_MAJOR] = LibStub
flickerstreak@30 9 LibStub.minor = LIBSTUB_MINOR
flickerstreak@30 10
flickerstreak@30 11 function LibStub:NewLibrary(major, minor)
flickerstreak@30 12 assert(type(major) == "string", "Bad argument #2 to `NewLibrary' (string expected)")
flickerstreak@30 13 minor = assert(tonumber(strmatch(minor, "%d+")), "Minor version must either be a number or contain a number.")
flickerstreak@30 14
flickerstreak@30 15 local oldminor = self.minors[major]
flickerstreak@30 16 if oldminor and oldminor >= minor then return nil end
flickerstreak@30 17 self.minors[major], self.libs[major] = minor, self.libs[major] or {}
flickerstreak@30 18 return self.libs[major], oldminor
flickerstreak@30 19 end
flickerstreak@30 20
flickerstreak@30 21 function LibStub:GetLibrary(major, silent)
flickerstreak@30 22 if not self.libs[major] and not silent then
flickerstreak@30 23 error(("Cannot find a library instance of %q."):format(tostring(major)), 2)
flickerstreak@30 24 end
flickerstreak@30 25 return self.libs[major], self.minors[major]
flickerstreak@30 26 end
flickerstreak@30 27
flickerstreak@30 28 function LibStub:IterateLibraries() return pairs(self.libs) end
flickerstreak@30 29 setmetatable(LibStub, { __call = LibStub.GetLibrary })
flickerstreak@30 30 end