API CombatLog Object IsA

Returns whether a unit from the combat log matches a given filter.
 isMatch = CombatLog_Object_IsA(unitFlags, mask)
==Arguments==
:;unitFlags: - UnitFlag bitfield, i.e. sourceFlags or destFlags from .
:;mask: - COMBATLOG_FILTER constant.
==Returns==
:;isMatch: - True if a bitfield in each of the four main categories matches.
==Details==
* Both of the arguments to this function must be valid Combat Log Objects. That is, for the four main categories of the UnitFlag bitfield, there must be at least one nonzero bit. Passing in a single COMBATLOG_OBJECT constant will cause the check to return false.
==Filters==
Constant 	bit field	bit field	bit field	bit field	bit field	bit field	bit field	bit field	bit field
COMBATLOG_FILTER_ME 	0x 	0 	0 	0 	0 	0 	5 	1 	1
COMBATLOG_FILTER_MINE 	0x 	0 	0 	0 	0 	4 	5 	1 	1
COMBATLOG_FILTER_MY_PET 	0x 	0 	0 	0 	0 	3 	1 	1 	1
COMBATLOG_FILTER_FRIENDLY_UNITS 	0x 	0 	0 	0 	0 	7 	F 	1 	E
COMBATLOG_FILTER_HOSTILE_PLAYERS	0x 	0 	0 	0 	0 	7 	D 	4 	E
COMBATLOG_FILTER_HOSTILE_UNITS 	0x 	0 	0 	0 	0 	7 	E 	4 	E
COMBATLOG_FILTER_NEUTRAL_UNITS 	0x 	0 	0 	0 	0 	7 	F 	2 	E
COMBATLOG_FILTER_UNKNOWN_UNITS 	0x 	8 	0 	0 	0 	0 	0 	0 	0
COMBATLOG_FILTER_EVERYTHING 	0x 	F 	F 	F 	F 	F 	F 	F 	F
You can also construct your own filter; make sure to use at least one constant from each category:
local COMBATLOG_FILTER_FRIENDLY_PLAYERS = bit.bor(
	COMBATLOG_OBJECT_AFFILIATION_PARTY,
	COMBATLOG_OBJECT_AFFILIATION_RAID,
	COMBATLOG_OBJECT_AFFILIATION_OUTSIDER,
	COMBATLOG_OBJECT_REACTION_FRIENDLY,
	COMBATLOG_OBJECT_CONTROL_PLAYER,
	COMBATLOG_OBJECT_TYPE_PLAYER
)
==Example==
Prints if the combat log source unit is a hostile NPC.
local f = CreateFrame("Frame")
f:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED")
f:SetScript("OnEvent", function(self, event)
	local timestamp, subevent, _, sourceGUID, sourceName, sourceFlags = CombatLogGetCurrentEventInfo()
	if CombatLog_Object_IsA(sourceFlags, COMBATLOG_FILTER_HOSTILE_UNITS) then
		print(subevent, sourceName, format("0x%X", sourceFlags), "is a hostile NPC")
	end
end)
==Patch changes==