Bugfixes: Removed retail API calls, ran linting script and static analysis.

!Compatibility/api/luaAPI.lua

@@ -306,7 +306,7 @@ end
 
 function table.wipe(t)
 	if type(t) ~= "table" then
-		error(format("bad argument #1 to 'wipe' (table expected, got %s)", t ~= nil and type(t) or "no value"), 2)
+		return t
 	end
 
 	for k in pairs(t) do

!Compatibility/api/wowAPI.lua

@@ -96,7 +96,9 @@ function HookScript(frame, scriptName, handler)
 			handler(this)
 		end)
 	else
-		frame:SetScript(scriptName, handler)
+		frame:SetScript(scriptName, function()
+			handler(this)
+		end)
 	end
 end
 
@@ -112,11 +114,11 @@ function hooksecurefunc(a1, a2, a3)
 
 	local original_func = a1[a2]
 
-	a1[a2] = function(...)
-		local original_return = {original_func(unpack(arg))}
-		a3(unpack(arg))
+	a1[a2] = function(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t)
+		local r1, r2, r3, r4, r5, r6, r7, r8, r9, r10 = original_func(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t)
+		a3(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t)
 
-		return unpack(original_return)
+		return r1, r2, r3, r4, r5, r6, r7, r8, r9, r10
 	end
 end
 

ElvUI/Core/pluginInstaller.lua

@@ -157,7 +157,8 @@ function PI:CreateStepComplete()
 	E:Size(imsg, 418, 72)
 	E:Point(imsg, "TOP", 0, -190)
 	imsg:Hide()
-	imsg:SetScript("OnShow", function(self)
+	imsg:SetScript("OnShow", function()
+		local self = this
 		if self.message then
 			PlaySoundFile([[Sound\Interface\LevelUp.wav]])
 			self.text:SetText(self.message)
@@ -331,7 +332,8 @@ function PI:CreateFrame()
 	E:Point(f.pending.tex, "BOTTOMRIGHT", f.pending, "BOTTOMRIGHT", -2, 2)
 	f.pending.tex:SetTexture([[Interface\AddOns\ElvUI\media\textures\UI-OptionsFrame-NewFeatureIcon]])
 	E:CreateBackdrop(f.pending, "Transparent")
-	f.pending:SetScript("OnEnter", function(self)
+	f.pending:SetScript("OnEnter", function()
+		local self = this
 		_G["GameTooltip"]:SetOwner(self, "ANCHOR_BOTTOMLEFT", E.PixelMode and -7 or -9)
 		_G["GameTooltip"]:AddLine(L["List of installations in queue:"], 1, 1, 1)
 		_G["GameTooltip"]:AddLine(" ")

ElvUI/Core/toolkit.lua

@@ -72,6 +72,7 @@ function E:Point(obj, arg1, arg2, arg3, arg4, arg5)
 end
 
 function E:SetOutside(obj, anchor, xOffset, yOffset, anchor2)
+	if type(obj) ~= "table" then return end
 	xOffset = xOffset or E.Border
 	yOffset = yOffset or E.Border
 	anchor = anchor or obj:GetParent()
@@ -86,6 +87,7 @@ function E:SetOutside(obj, anchor, xOffset, yOffset, anchor2)
 end
 
 function E:SetInside(obj, anchor, xOffset, yOffset, anchor2)
+	if type(obj) ~= "table" then return end
 	xOffset = xOffset or E.Border
 	yOffset = yOffset or E.Border
 	anchor = anchor or obj:GetParent()
@@ -100,6 +102,7 @@ function E:SetInside(obj, anchor, xOffset, yOffset, anchor2)
 end
 
 function E:SetTemplate(f, t, glossTex, ignoreUpdates, forcePixelMode, isUnitFrameElement)
+	if not f then return end
 	GetTemplate(t, isUnitFrameElement)
 
 	if t then
@@ -186,9 +189,18 @@ end
 function E:CreateBackdrop(f, t, tex, ignoreUpdates, forcePixelMode, isUnitFrameElement)
 	if not t then t = "Default" end
 
-	local parent = f.IsObjectType and f:IsObjectType("Texture") and f:GetParent() or f
+	local parent = f
+	if f.IsObjectType and not f:IsObjectType("Frame") then
+		parent = f:GetParent()
+	end
+	if type(parent) == "table" and not parent[0] then
+		parent = f.GetParent and f:GetParent() or UIParent
+	end
+	if parent and parent.IsObjectType and not parent:IsObjectType("Frame") then
+		parent = UIParent
+	end
 	
-	local b = CreateFrame("Frame", nil, parent)
+	local b = f.backdrop or CreateFrame("Frame", nil, parent)
 	if f.forcePixelMode or forcePixelMode then
 		E:SetOutside(b, nil, E.mult, E.mult)
 	else
@@ -288,6 +300,8 @@ function E:FontTemplate(fs, font, fontSize, fontStyle)
 end
 
 function E:StyleButton(button, noHover, noPushed, noChecked)
+	if not button then return end
+
 	if button.SetHighlightTexture and not button.hover and not noHover then
 		local hover = button:CreateTexture()
 		hover:SetTexture(1, 1, 1, 0.3)

ElvUI/Libraries/UTF8/utf8data.lua

@@ -1,4 +1,4 @@
-utf8_lc_uc = {
+utf8_lc_uc = {
 	["a"] = "A",
 	["b"] = "B",
 	["c"] = "C",

ElvUI/Libraries/oUF_Plugins/oUF_DebuffHighlight/oUF_DebuffHighlight.lua

@@ -23,7 +23,8 @@ local function GetDebuffType(unit, filter, filterTable)
 	if not unit or not UnitCanAssist("player", unit) then return nil end
 	local i = 1
 	while true do
-		local name, _, texture, _, debufftype = UnitAura(unit, i, "HARMFUL")
+		local texture, count, debufftype = UnitAura(unit, i, "HARMFUL")
+		local name = texture
 		if not texture then break end
 
 		if(filterTable) then

ElvUI/Modules/NamePlates/Elements/Auras.lua

@@ -395,21 +395,25 @@ function mod:UpdateElement_AurasByUnitID(unit)
 	WipeAuraList(guid)
 
 	local index = 1
-	local name, _, texture, count, _, duration, expirationTime, unitCaster, _, _, spellID = UnitAura(unit, index, "HARMFUL")
+	local texture, count, debuffType = UnitAura(unit, index, "HARMFUL")
+	local name, duration, expirationTime, unitCaster, spellID = texture, 0, 0, nil, nil
 	while name do
 		SetSpellDuration(spellID, duration)
 		SetAuraInstance(guid, name, spellID, expirationTime, count, UnitGUID(unitCaster or ""), duration, texture, AURA_TYPE_DEBUFF)
 		index = index + 1
-		name , _, texture, count, _, duration, expirationTime, unitCaster, _, _, spellID = UnitAura(unit, index, "HARMFUL")
+		texture, count, debuffType = UnitAura(unit, index, "HARMFUL")
+		name = texture
 	end
 
 	index = 1
-	local name, _, texture, count, _, duration, expirationTime, unitCaster, _, _, spellID = UnitAura(unit, index, "HELPFUL")
+	texture, count, debuffType = UnitAura(unit, index, "HELPFUL")
+	name = texture
 	while name do
 		SetSpellDuration(spellID, duration)
 		SetAuraInstance(guid, name, spellID, expirationTime, count, UnitGUID(unitCaster or ""), duration, texture, AURA_TYPE_BUFF)
 		index = index + 1
-		name, _, texture, count, _, duration, expirationTime, unitCaster, _, _, spellID = UnitAura(unit, index, "HELPFUL")
+		texture, count, debuffType = UnitAura(unit, index, "HELPFUL")
+		name = texture
 	end
 
 	local raidIcon, name

ElvUI/Modules/NamePlates/NamePlates.lua

@@ -561,7 +561,8 @@ function mod:OnCreated(frame)
 	moveDown:SetDuration(0.1)
 	moveDown:SetOffset(0, -35)
 	moveDown:SetSmoothing("In")
-	moveDown:SetScript("OnFinished", function(self)
+	moveDown:SetScript("OnFinished", function()
+		local self = this
 		self:Reset()
 	end)
 

ElvUI/Modules/Skins/Blizzard/Misc.lua

@@ -27,7 +27,9 @@ local function LoadSkin()
 	}
 
 	for i = 1, getn(skins) do
-		E:SetTemplate(_G[skins[i]], "Transparent")
+		if _G[skins[i]] then
+			E:SetTemplate(_G[skins[i]], "Transparent")
+		end
 	end
 
 	-- ChatMenus
@@ -188,7 +190,7 @@ local function LoadSkin()
 
 	for i = 1, getn(BlizzardHeader) do
 		local title = _G[BlizzardHeader[i].."Header"]
-		if title then
+		if title and title.SetTexture then
 			title:SetTexture("")
 			title:ClearAllPoints()
 			if title == _G["GameMenuFrameHeader"] then

ElvUI/Modules/Skins/Skins.lua

@@ -161,6 +161,7 @@ local tabs = {
 }
 
 function S:HandleTab(tab)
+	if not tab then return end
 	local name = tab:GetName()
 	for _, object in pairs(tabs) do
 		local tex = _G[name..object]

ElvUI/Modules/UnitFrames/Elements/Auras.lua

@@ -69,7 +69,8 @@ function UF:Construct_AuraIcon(button)
 	button.overlay:SetTexture(nil)
 
 	button:RegisterForClicks("RightButtonUp")
-	button:SetScript("OnClick", function(self)
+	button:SetScript("OnClick", function()
+		local self = this
 		if E.db.unitframe.auraBlacklistModifier == "NONE"
 		or not ((E.db.unitframe.auraBlacklistModifier == "SHIFT" and IsShiftKeyDown())
 			or (E.db.unitframe.auraBlacklistModifier == "ALT" and IsAltKeyDown())

ElvUI/Modules/UnitFrames/Elements/ComboPoints.lua

@@ -18,13 +18,12 @@ function UF:CombobarDetachedUpdate()
 			CombobarDetached:RegisterEvent("PLAYER_ENTERING_WORLD")
 			CombobarDetached:RegisterEvent("UPDATE_SHAPESHIFT_FORM")
 
-			CombobarDetached:SetScript("OnEvent", function(self, event, unit)
-				print(self, event, unit)
+			CombobarDetached:SetScript("OnEvent", function()
 				if event == "PLAYER_ENTERING_WORLD" then
 					E:ShapeshiftDelayedUpdate(ElvUF_Target.ComboPoints.Override, ElvUF_Target)
 				end
 
-				ElvUF_Target.ComboPoints.Override(ElvUF_Target, event, unit)
+				ElvUF_Target.ComboPoints.Override(ElvUF_Target, event, arg1)
 			end)
 		end
 

ElvUI_Config/Libraries/AceGUI-3.0/widgets/AceGUIContainer-TreeGroup.lua

@@ -331,7 +331,7 @@ local methods = {
 		toggle:SetHeight(14)
 		toggle:ClearAllPoints()
 		toggle:SetPoint("TOPRIGHT", button, "TOPRIGHT", -6, -1)
-		toggle:SetHighlightTexture("Interface\Buttons\UI-PlusButton-Hilight", "ADD")
+		toggle:SetHighlightTexture("Interface\\Buttons\\UI-PlusButton-Hilight", "ADD")
 		toggle:SetScript("OnClick", Button_OnClick)
 		button.toggle = toggle
 		toggle.obj = button

ElvUI_Config/Nameplates.lua

@@ -1046,8 +1046,10 @@ E.Options.args.nameplate = {
 							set = function(info, value) selectedFilter = value; UpdateFilterGroup() end,
 							values = function()
 								filters = {}
-								for filter in pairs(E.global["nameplates"]["filter"]) do
-									filters[filter] = filter
+								if E.global["nameplates"] and E.global["nameplates"]["filter"] then
+									for filter in pairs(E.global["nameplates"]["filter"]) do
+										filters[filter] = filter
+									end
 								end
 								return filters
 							end

README.md

@@ -3,7 +3,15 @@
 # Turtle WoW ElvUI - Vanilla (1.12.1)
 ## :exclamation: *Does NOT work with Retail - [Classic (1.13)](https://git.tukui.org/elvui/elvui-classic)*
 
-# Due to Classic 1.13 release, development on this addon has halted. If you or your friends still play 1.12.1 Vanilla and are wanting to help with any bug fixes, please submit any PR requests as you please. At this time, we will not answer any support tickets you make or ask about in regards to current bugs. For now, development will stay quiet on this matter.
+# This repository is actively being fixed and maintained to ensure compatibility with Turtle WoW.
+
+## Changelog
+- **Fix:** Removed implicit `arg` table leak in `hooksecurefunc` (varargs `...` issue in Lua 5.0).
+- **Fix:** Stripped invisible UTF-8 BOM from `utf8data.lua` that caused Lua parser errors.
+- **Fix:** Resolved tooltip crash with ShaguTweaks by reusing existing `backdrop` frames in `CreateBackdrop` instead of unconditionally overwriting them.
+- **Fix:** Made ElvUI's backported `table.wipe` resilient to `nil` values, fixing crashes with native Turtle WoW UI scripts (like `Turtle_ShopUI.lua`) and lazy addons.
+- **Fix:** Added type safety checks to `SetOutside` and `SetInside` to prevent crashes when other addons overwrite frame globals with dummy functions.
+- **Fix:** Added type safety check before calling `SetTexture("")` on Blizzard header frames, preventing crashes when headers are modified by other addons or the custom client.
 
 This is the backported version of ElvUI for World of Warcraft - Vanilla (1.12.1) 
 <br />