pcall instead xpcall

WeakAuras/AuraEnvironment.lua

@@ -214,7 +214,10 @@ function WeakAuras.ActivateAuraEnvironment(id, cloneId, state, states, onlyConfi
       if(actions and actions.do_custom and actions.custom) then
         local func = WeakAuras.customActionsFunctions[id]["init"]
         if func then
-          xpcall(func, geterrorhandler())
+          local ok, ret = xpcall(func)
+          if not ok then
+            geterrorhandler()(ret)
+          end
         end
       end
     end

WeakAuras/GenericTrigger.lua

@@ -339,8 +339,9 @@ local function RunOverlayFuncs(event, state)
   for i, overlayFunc in ipairs(event.overlayFuncs) do
     state.additionalProgress[i] = state.additionalProgress[i] or {};
     local additionalProgress = state.additionalProgress[i];
-    local a, b, c = overlayFunc(event.trigger, state);
+    local ok, a, b, c = pcall(overlayFunc, event.trigger, state);
-    if (not a) then
+    if (not ok) then
+      geterrorhandler()(a)
       additionalProgress.min = nil;
       additionalProgress.max = nil;
       additionalProgress.direction = nil;
@@ -386,8 +387,13 @@ local function callFunctionForActivateEvent(func, trigger, fallback, errorHandle
   if not func then
     return fallback
   end
-  local value = func(trigger)
+  local ok, value = pcall(func, trigger)
-  return value or fallback
+  if not ok then
+    errorHandler(value)
+    return fallback
+  else
+    return value
+  end
 end
 
 function WeakAuras.ActivateEvent(id, triggernum, data, state, errorHandler)
@@ -419,8 +425,13 @@ function WeakAuras.ActivateEvent(id, triggernum, data, state, errorHandler)
     state.inverse = nil;
     state.autoHide = autoHide;
   elseif (data.durationFunc) then
-    local arg1, arg2, arg3, inverse = data.durationFunc(data.trigger);
+    local ok, arg1, arg2, arg3, inverse = pcall(data.durationFunc, data.trigger);
-    arg1 = type(arg1) == "number" and arg1 or 0;
+    if not ok then
+      errorHandler(arg1);
+      arg1 = 0;
+      arg2 = 0;
+    end
+    arg1 = type(arg1) == "number" and arg2 or 0;
     arg2 = type(arg2) == "number" and arg2 or 0;
 
     if (state.inverse ~= inverse) then
@@ -525,13 +536,17 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
   if(data.triggerFunc) then
     local untriggerCheck = false;
     if (data.statesParameter == "full") then
-      local returnValue = data.triggerFunc(allStates, event, arg1, arg2, ...);
+      local ok, returnValue = pcall(data.triggerFunc, allStates, event, arg1, arg2, ...);
-      if (returnValue) then
+      if not ok then
+        errorHandler(returnValue)
+      elseif ok and returnValue then
         updateTriggerState = true;
       end
     elseif (data.statesParameter == "all") then
-      local returnValue = data.triggerFunc(allStates, event, arg1, arg2, ...);
+      local ok, returnValue = pcall(data.triggerFunc, allStates, event, arg1, arg2, ...);
-      if( (returnValue) or optionsEvent) then
+      if not ok then
+        errorHandler(returnValue)
+      elseif (ok and returnValue) or optionsEvent then
         for id, state in pairs(allStates) do
           if (state.changed) then
             if (WeakAuras.ActivateEvent(id, triggernum, data, state, errorHandler)) then
@@ -554,8 +569,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
         end
         allStates[cloneId] = allStates[cloneId] or {};
         local state = allStates[cloneId];
-        local returnValue = data.triggerFunc(state, event, unit, arg1, arg2, ...);
+        local ok, returnValue = pcall(data.triggerFunc, state, event, unit, arg1, arg2, ...);
-        if returnValue or optionsEvent then
+        if not ok then
+          errorHandler(returnValue)
+        elseif (ok and returnValue) or optionsEvent then
           if(WeakAuras.ActivateEvent(id, triggernum, data, state, errorHandler)) then
             updateTriggerState = true;
           end
@@ -566,8 +583,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
     elseif (data.statesParameter == "one") then
       allStates[""] = allStates[""] or {};
       local state = allStates[""];
-      local returnValue = data.triggerFunc(state, event, arg1, arg2, ...);
+      local ok, returnValue = pcall(data.triggerFunc, state, event, arg1, arg2, ...);
-      if returnValue or optionsEvent then
+      if not ok then
+        errorHandler(returnValue)
+      elseif (ok and returnValue) or optionsEvent then
         if(WeakAuras.ActivateEvent(id, triggernum, data, state, errorHandler)) then
           updateTriggerState = true;
         end
@@ -575,8 +594,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
         untriggerCheck = true;
       end
     else
-      local returnValue = data.triggerFunc(event, arg1, arg2, ...);
+      local ok, returnValue = pcall(data.triggerFunc, event, arg1, arg2, ...);
-      if returnValue or optionsEvent then
+      if not ok then
+        errorHandler(returnValue)
+      elseif (ok and returnValue) or optionsEvent then
         allStates[""] = allStates[""] or {};
         local state = allStates[""];
         if(WeakAuras.ActivateEvent(id, triggernum, data, state, errorHandler)) then
@@ -589,8 +610,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
     if (untriggerCheck and not optionsEvent) then
       if (data.statesParameter == "all") then
         if data.untriggerFunc then
-          local returnValue = data.untriggerFunc(allStates, event, arg1, arg2, ...);
+          local ok, returnValue = pcall(data.untriggerFunc, allStates, event, arg1, arg2, ...);
-          if returnValue then
+          if not ok then
+            errorHandler(returnValue)
+          elseif (ok and returnValue) or optionsEvent then
             for id, state in pairs(allStates) do
               if (state.changed) then
                 if (WeakAuras.EndEvent(id, triggernum, nil, state)) then
@@ -606,8 +629,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
             local cloneId = WeakAuras.multiUnitUnits[data.trigger.unit] and arg1 or ""
             local state = allStates[cloneId]
             if state then
-              local returnValue = data.untriggerFunc(state, event, arg1, arg2, ...);
+              local ok, returnValue = pcall(data.untriggerFunc, state, event, arg1, arg2, ...);
-              if returnValue then
+              if not ok then
+                errorHandler(returnValue)
+              elseif ok and returnValue then
                 if (WeakAuras.EndEvent(id, triggernum, nil, state)) then
                   updateTriggerState = true;
                 end
@@ -619,8 +644,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
         allStates[""] = allStates[""] or {};
         local state = allStates[""];
         if data.untriggerFunc then
-          local returnValue = data.untriggerFunc(state, event, arg1, arg2, ...);
+          local ok, returnValue = pcall(data.untriggerFunc, state, event, arg1, arg2, ...);
-          if returnValue then
+          if not ok then
+            errorHandler(returnValue)
+          elseif (ok and returnValue) then
             if (WeakAuras.EndEvent(id, triggernum, nil, state)) then
               updateTriggerState = true;
             end
@@ -628,8 +655,10 @@ local function RunTriggerFunc(allStates, data, id, triggernum, event, arg1, arg2
         end
       else
         if data.untriggerFunc then
-          local returnValue = data.untriggerFunc(event, arg1, arg2, ...);
+          local ok, returnValue = pcall(data.untriggerFunc, event, arg1, arg2, ...);
-          if returnValue then
+          if not ok then
+            errorHandler(returnValue)
+          elseif (ok and returnValue) then
             allStates[""] = allStates[""] or {};
             local state = allStates[""];
             if(WeakAuras.EndEvent(id, triggernum, nil, state)) then
@@ -1026,7 +1055,7 @@ function GenericTrigger.LoadDisplays(toLoad, loadEvent, ...)
   end
 
   for event in pairs(eventsToRegister) do
-    frame:RegisterEvent(event)
+    pcall(frame.RegisterEvent, frame, event)
     genericTriggerRegisteredEvents[event] = true;
   end
 
@@ -1037,7 +1066,7 @@ function GenericTrigger.LoadDisplays(toLoad, loadEvent, ...)
         frame.unitFrames[unit].unit = unit
         frame.unitFrames[unit]:SetScript("OnEvent", HandleUnitEvent);
       end
-      frame.unitFrames[unit]:RegisterEvent(event)
+      pcall(frame.unitFrames[unit].RegisterEvent, frame.unitFrames[unit], event, unit)
       genericTriggerRegisteredUnitEvents[unit] = genericTriggerRegisteredUnitEvents[unit] or {};
       genericTriggerRegisteredUnitEvents[unit][event] = true;
     end
@@ -3646,26 +3675,56 @@ function GenericTrigger.CreateFallbackState(data, triggernum, state)
   WeakAuras.ActivateAuraEnvironment(data.id, "", state);
   local firstTrigger = data.triggers[1].trigger
   if (event.nameFunc) then
-    local name = event.nameFunc(firstTrigger);
+    local success, res = pcall(event.nameFunc, firstTrigger);
-    state.name = name or nil;
+    if not success then
+      geterrorhandler()(res)
+      state.name = nil
+    else
+      state.name = res or nil
+    end
   end
   if (event.iconFunc) then
-    local icon = event.iconFunc(firstTrigger);
+    local success, res = pcall(event.iconFunc, firstTrigger);
-    state.icon = icon or nil;
+    if not success then
+      geterrorhandler()(res)
+      state.icon = nil
+    else
+      state.icon = res or nil
+    end
   end
 
   if (event.textureFunc ) then
-    local texture = event.textureFunc(firstTrigger);
+    local success, res = pcall(event.textureFunc, firstTrigger);
-    state.texture = texture or nil;
+    if not success then
+      geterrorhandler()(res)
+      state.texture = nil
+    else
+      state.texture = res or nil
+    end
   end
 
   if (event.stacksFunc) then
-    local stacks = event.stacksFunc(firstTrigger);
+    local success, res = pcall(event.stacksFunc, firstTrigger);
-    state.stacks = stacks or nil;
+    if not success then
+      geterrorhandler()(res)
+      state.stacks = nil
+    else
+      state.stacks = res or nil
+    end
   end
 
   if (event.durationFunc) then
     local arg1, arg2, arg3, inverse = event.durationFunc(firstTrigger);
+    local success, arg1, arg2, arg3, inverse = pcall(event.durationFunc, firstTrigger);
+    if not success then
+      geterrorhandler()(arg1)
+      state.progressType = "timed";
+      state.duration = 0;
+      state.expirationTime = math.huge;
+      state.value = nil;
+      state.total = nil;
+      return;
+    end
     arg1 = type(arg1) == "number" and arg1 or 0;
     arg2 = type(arg2) == "number" and arg2 or 0;
 

WeakAuras/RegionTypes/DynamicGroup.lua

@@ -310,9 +310,11 @@ local sorters = {
     local sortFunc = WeakAuras.LoadFunction("return " .. sortStr, data.id, "custom sort") or noop
     return function(a, b)
       WeakAuras.ActivateAuraEnvironment(data.id)
-      local result = sortFunc(a, b)
+      local ok, result = pcall(sortFunc, a, b)
       WeakAuras.ActivateAuraEnvironment()
-      if result then
+      if not ok then
+        geterrorhandler()(result)
+      else
         return result
       end
     end
@@ -367,7 +369,10 @@ local anchorers = {
     local anchorFunc = WeakAuras.LoadFunction("return " .. anchorStr, data.id, "custom frame anchor") or noop
     return function(frames, activeRegions)
       WeakAuras.ActivateAuraEnvironment(data.id)
-      anchorFunc(frames, activeRegions)
+      local ok, ret = pcall(anchorFunc, frames, activeRegions)
+      if not ok then
+        geterrorhandler()(ret)
+      end
       WeakAuras.ActivateAuraEnvironment()
     end
   end
@@ -715,11 +720,12 @@ local growers = {
     local growFunc = WeakAuras.LoadFunction("return " .. growStr, data.id, "custom grow") or noop
     return function(newPositions, activeRegions)
       WeakAuras.ActivateAuraEnvironment(data.id)
-      growFunc(newPositions, activeRegions)
+      local ok, ret = pcall(growFunc, newPositions, activeRegions)
       WeakAuras.ActivateAuraEnvironment()
-      --if not ok then
+      if not ok then
-      --  wipe(newPositions)
+        geterrorhandler()(ret)
-      --end
+        wipe(newPositions)
+      end
     end
   end
 }
@@ -731,7 +737,10 @@ local function createGrowFunc(data)
 end
 
 local function SafeGetPos(region, func)
-  return func(region)
+  local ok, value1, value2 = pcall(func, region)
+  if ok then
+    return value1, value2
+  end
 end
 
 local function modify(parent, region, data)

WeakAuras/RegionTypes/RegionPrototype.lua

@@ -283,7 +283,10 @@ end
 local function RunCode(self, func)
   if func and not WeakAuras.IsOptionsOpen() then
     WeakAuras.ActivateAuraEnvironment(self.id, self.cloneId, self.state, self.states);
-    xpcall(func, geterrorhandler());
+    local ok, ret = pcall(func);
+    if not ok then
+      geterrorhandler()(ret)
+    end
     WeakAuras.ActivateAuraEnvironment(nil);
   end
 end
@@ -304,7 +307,10 @@ local function UpdatePosition(self)
   local yOffset = self.yOffset + (self.yOffsetAnim or 0) + (self.yOffsetRelative or 0)
   self:RealClearAllPoints();
 
-  self:SetPoint(self.anchorPoint, self.relativeTo, self.relativePoint, xOffset, yOffset);
+  local ok, ret = pcall(self.SetPoint, self, self.anchorPoint, self.relativeTo, self.relativePoint, xOffset, yOffset);
+  if not ok then
+    geterrorhandler()(ret)
+  end
 end
 
 local function ResetPosition(self)

WeakAuras/WeakAuras.lua

@@ -831,8 +831,12 @@ end
 local customConditionTestFunctions = {};
 
 function WeakAuras.CallCustomConditionTest(testFunctionNumber, ...)
-  local result = customConditionTestFunctions[testFunctionNumber](...)
+  local ok, result = pcall(customConditionTestFunctions[testFunctionNumber], ...)
-  return result
+  if not ok then
+    geterrorhandler()(result)
+  elseif (ok) then
+    return result
+  end
 end
 
 local function CreateTestForCondition(input, allConditionsTemplate, usedStates)
@@ -4276,8 +4280,12 @@ function WeakAuras.Add(data, takeSnapshot, simpleChange)
   if takeSnapshot then
     WeakAuras.SetMigrationSnapshot(data.uid, snapshot)
   end
-  WeakAuras.PreAdd(data)
+  local ok, ret = pcall(WeakAuras.PreAdd, data)
-  pAdd(data, simpleChange)
+  if not ok then
+    geterrorhandler()(ret)
+  elseif ok then
+    pAdd(data, simpleChange)
+  end
 end
 
 function WeakAuras.SetRegion(data, cloneId)
@@ -4697,7 +4705,10 @@ function WeakAuras.PerformActions(data, when, region)
     local func = WeakAuras.customActionsFunctions[data.id][when]
     if func then
       WeakAuras.ActivateAuraEnvironment(region.id, region.cloneId, region.state, region.states);
-      xpcall(func, geterrorhandler());
+      local ok, ret = pcall(func);
+      if not ok then
+        geterrorhandler()(ret)
+      end
       WeakAuras.ActivateAuraEnvironment(nil);
     end
   end
@@ -4783,40 +4794,64 @@ function WeakAuras.UpdateAnimations()
     WeakAuras.ActivateAuraEnvironment(anim.name, anim.cloneId, anim.region.state, anim.region.states);
     if(anim.translateFunc) then
       if (anim.region.SetOffsetAnim) then
-        local x, y = anim.translateFunc(progress, 0, 0, anim.dX, anim.dY);
+        local ok, x, y = pcall(anim.translateFunc, progress, 0, 0, anim.dX, anim.dY);
-        anim.region:SetOffsetAnim(x, y);
+        if not ok then
+          errorHandler(x)
+        else
+          anim.region:SetOffsetAnim(x, y);
+        end
       else
         anim.region:ClearAllPoints();
-        local x, y = anim.translateFunc(progress, anim.startX, anim.startY, anim.dX, anim.dY);
+        local ok, x, y = xpcall(anim.translateFunc, progress, anim.startX, anim.startY, anim.dX, anim.dY);
-        anim.region:SetPoint(anim.selfPoint, anim.anchor, anim.anchorPoint, x, y);
+        if not ok then
+          errorHandler(x)
+        else
+          anim.region:SetPoint(anim.selfPoint, anim.anchor, anim.anchorPoint, x, y);
+        end
       end
     end
     if(anim.alphaFunc) then
-      local alpha = anim.alphaFunc(progress, anim.startAlpha, anim.dAlpha);
+      local ok, alpha = pcall(anim.alphaFunc, progress, anim.startAlpha, anim.dAlpha);
-      if (anim.region.SetAnimAlpha) then
+      if not ok then
-        anim.region:SetAnimAlpha(alpha);
+        errorHandler(alpha)
       else
-        anim.region:SetAlpha(alpha);
+        if (anim.region.SetAnimAlpha) then
+          anim.region:SetAnimAlpha(alpha);
+        else
+          anim.region:SetAlpha(alpha);
+        end
       end
     end
     if(anim.scaleFunc) then
-      local scaleX, scaleY = anim.scaleFunc(progress, 1, 1, anim.scaleX, anim.scaleY);
+      local ok, scaleX, scaleY = pcall(anim.scaleFunc, progress, 1, 1, anim.scaleX, anim.scaleY);
-      if(anim.region.Scale) then
+      if (ok) then
-        anim.region:Scale(scaleX, scaleY);
+        errorHandler(scaleX)
       else
-        anim.region:SetWidth(anim.startWidth * scaleX);
+        if(anim.region.Scale) then
-        anim.region:SetHeight(anim.startHeight * scaleY);
+          anim.region:Scale(scaleX, scaleY);
+        else
+          anim.region:SetWidth(anim.startWidth * scaleX);
+          anim.region:SetHeight(anim.startHeight * scaleY);
+        end
       end
     end
     if(anim.rotateFunc and anim.region.Rotate) then
-      local rotate = anim.rotateFunc(progress, anim.startRotation, anim.rotate);
+      local ok, rotate = pcall(anim.rotateFunc, progress, anim.startRotation, anim.rotate);
-      anim.region:Rotate(rotate);
+      if not ok then
+        errorHandler(rotate)
+      else
+        anim.region:Rotate(rotate);
+      end
     end
     if(anim.colorFunc and anim.region.ColorAnim) then
       local startR, startG, startB, startA = anim.region:GetColor();
       startR, startG, startB, startA = startR or 1, startG or 1, startB or 1, startA or 1;
-      local r, g, b, a = anim.colorFunc(progress, startR, startG, startB, startA, anim.colorR, anim.colorG, anim.colorB, anim.colorA);
+      local ok, r, g, b, a = pcall(anim.colorFunc, progress, startR, startG, startB, startA, anim.colorR, anim.colorG, anim.colorB, anim.colorA);
-      anim.region:ColorAnim(r, g, b, a);
+      if not ok then
+        errorHandler(r)
+      else
+        anim.region:ColorAnim(r, g, b, a);
+      end
     end
     WeakAuras.ActivateAuraEnvironment(nil);
     if(finished) then
@@ -5855,7 +5890,12 @@ local function evaluateTriggerStateTriggers(id)
     result = true;
   else
     if (triggerState[id].disjunctive == "custom" and triggerState[id].triggerLogicFunc) then
-      result = triggerState[id].triggerLogicFunc(triggerState[id].triggers);
+      local ok
+      ok, result = pcall(triggerState[id].triggerLogicFunc, triggerState[id].triggers);
+      if not ok then
+        geterrorhandler()(result)
+        result = false
+      end
     end
   end
 
@@ -6035,7 +6075,13 @@ function WeakAuras.RunCustomTextFunc(region, customFunc)
     end
   end
 
-  local custom = {customFunc(expirationTime or math.huge, duration or 0, progress, dur, name, icon, stacks)}
+  local custom = {pcall(customFunc, expirationTime or math.huge, duration or 0, progress, dur, name, icon, stacks)}
+  if not custom[1] then
+    geterrorhandler()(custom[2])
+  else
+    table.remove(custom, 1)
+  end
+
   WeakAuras.ActivateAuraEnvironment(nil)
   return custom
 end
@@ -6560,11 +6606,13 @@ local function GetAnchorFrame(data, region, parent)
     WeakAuras.StartProfileSystem("custom region anchor")
     WeakAuras.StartProfileAura(region.id)
     WeakAuras.ActivateAuraEnvironment(region.id, region.cloneId, region.state)
-    local ok, frame = xpcall(region.customAnchorFunc, geterrorhandler())
+    local ok, frame = pcall(region.customAnchorFunc)
     WeakAuras.ActivateAuraEnvironment()
     WeakAuras.StopProfileSystem("custom region anchor")
     WeakAuras.StopProfileAura(region.id)
-    if ok and frame then
+    if not ok then
+      geterrorhandler()(frame)
+    elseif ok and frame then
       return frame
     elseif WeakAuras.IsOptionsOpen() then
       return parent
@@ -6591,7 +6639,13 @@ function WeakAuras.AnchorFrame(data, region, parent)
     if not anchorParent then return end
     if (data.anchorFrameParent or data.anchorFrameParent == nil
         or data.anchorFrameType == "SCREEN" or data.anchorFrameType == "MOUSE") then
-      region:SetParent(anchorParent);
+      local errorhandler = function(text)
+        geterrorhandler()(L["'ERROR: Anchoring %s': \n"]:format(data.id) .. text)
+      end
+      local ok, ret = pcall(region.SetParent, region, anchorParent);
+      if not ok then
+        errorhandler(ret)
+      end
     else
       region:SetParent(frame);
     end