commit from backup

Libraries/oUF/private.lua

@@ -0,0 +1,22 @@
+local parent, ns = ...
+local Private = ns.oUF.Private
+
+function Private.argcheck(value, num, ...)
+	assert(type(num) == 'number', "Bad argument #2 to 'argcheck' (number expected, got "..type(num)..")")
+
+	for i=1,select("#", ...) do
+		if type(value) == select(i, ...) then return end
+	end
+
+	local types = strjoin(", ", ...)
+	local name = string.match(debugstack(2,2,0), ": in function [`<](.-)['>]")
+	error(("Bad argument #%d to '%s' (%s expected, got %s"):format(num, name, types, type(value)), 3)
+end
+
+function Private.print(...)
+	print("|cff33ff99oUF:|r", ...)
+end
+
+function Private.error(...)
+	Private.print("|cffff0000Error:|r "..string.format(...))
+end