Cache ItemStack display name

storage/itemstack.lua

@@ -16,6 +16,7 @@ function ItemStack:fromDetail(inv, detail, slot)
         obj.count = detail.count
         obj.maxCount = detail.maxCount
         obj.enchantments = detail.enchantments
+        obj.displayName = detail.displayName
     end
 
     setmetatable(obj, self)
@@ -33,7 +34,8 @@ function ItemStack:clone(withSlot)
         maxDamage = self.maxDamage,
         count = self.count,
         maxCount = self.maxCount,
-        enchantments = self.enchantments
+        enchantments = self.enchantments,
+        displayName = self.displayName
     }
 
     setmetatable(obj, self)
@@ -55,6 +57,7 @@ function ItemStack:toSerializable()
     ser.maxDamage = self.maxDamage
     ser.count = self.count
     ser.enchantments = self.enchantments
+    ser.displayName = self.displayName
   end
 
   return ser
@@ -129,6 +132,7 @@ function ItemStack:_modify(countDelta, stack)
     self.count = nil
     self.maxCount = nil
     self.enchantments = nil
+    self.displayName = nil
   else
     -- If stack is empty, copy stack data from source
     if self:isEmpty() then
@@ -138,6 +142,7 @@ function ItemStack:_modify(countDelta, stack)
       self.maxDamage = stack.maxDamage
       self.maxCount = stack.maxCount
       self.enchantments = stack.enchantments
+      self.displayName = stack.displayName
     end
 
     self.count = newCount
@@ -206,6 +211,7 @@ function ItemStack:canTransfer(stack)
   return self.name == stack.name and
           self.damage == stack.damage and
           self.maxDamage == stack.maxDamage and
+          self.displayName == stack.displayName and
           objEquals(self.enchantments, stack.enchantments)
 end
 
@@ -234,7 +240,8 @@ function ItemStack:matches(query)
           queryField(query.count, self.count) and
           queryField(query.maxDamage, self.maxDamage) and
           queryField(query.enchantments, self.enchantments) and
-          queryField(query.maxCount, self.maxCount)
+          queryField(query.maxCount, self.maxCount) and
+          queryField(query.displayName, self.displayName)
 end
 
 return ItemStack