Fixes issue 2490

src/EPPlus/FormulaParsing/DependencyChain/RpnFormulaExecution.cs

@@ -1144,14 +1144,13 @@ private static void HandleCircularReference(RpnOptimizedDependencyChain depChain
 
         private static bool IsSingleAddress(RpnFormula f)
         {
-            var t = f._tokenIndex + 1;
-            while (t < f._tokens.Count && f._tokens[t].TokenTypeIsAddressToken)
+            var t = f._tokenIndex + 2;
+            if(t < f._tokens.Count && f._tokens[t-1].TokenTypeIsAddressToken)
             {
                 if (f._tokens[t].TokenType == TokenType.Operator && f._tokens[t].Value == ":")
                 {
                     return false;
                 }
-                t++;
             }
             return true;
         }

src/EPPlusTest/Issues/FormulaCalculationIssues.cs

@@ -1771,6 +1771,42 @@ public void s1066()
                 Assert.AreEqual("CH-0% output tax foreign/foreign", result);
             }
         }
+        [TestMethod]
+        public void i2490_CalcNameAsFirstOperandOfRangeComparison()
+        {
+            var fileName = "i2490_CalcTest.xlsx";
+            using (var pck = OpenPackage(fileName, true))
+            {
+                var ws = pck.Workbook.Worksheets.Add("CalcTest");
+                ws.Cells["A1"].Value = 10D;
+                ws.Cells["A2"].Value = 20D;
+                ws.Cells["A3"].Value = 30D;
+                ws.Cells["B1"].Value = 1D;
+                ws.Cells["B2"].Value = 2D;
+                ws.Cells["B3"].Value = 3D;
+
+                //LIMIT points to a formula cell that is calculated after F1.
+                ws.Cells["D5"].Formula = "1+1";
+                var range = pck.Workbook.Names.Add("LIMIT", ws.Cells["D5"]);
+
+                ExcelNamedRange.ValidateCellAddressInFormulas = true;
+
+                //The name is the first operand, so in the RPN token list it is followed by the
+                //tokens of B1:B3. IsSingleAddress sees the ':' of the next operand and returns
+                //false, so D5 is never added to the dependency chain and LIMIT is read before
+                //D5 has been calculated.
+                ws.Cells["F1"].Formula = "MAX(FILTER(A1:A3,LIMIT>=B1:B3))";
+
+                var options = new ExcelCalculationOption() { FollowDependencyChain = true };
+
+                ws.Calculate(options);
+
+                var outputFile = GetOutputFile("", "out_" + fileName);
+                pck.SaveAs(outputFile);
+
+                Assert.AreEqual(20D, ws.Cells["F1"].Value);
+            }
+        }
     }
 }