From c72316acf12643d5e5dd3e32a84604914eed1853 Mon Sep 17 00:00:00 2001
From: Sad Ellie <sadellie.dev@gmail.com>
Date: Fri, 13 Jan 2023 18:58:24 +0400
Subject: [PATCH] Catch divide by zero and sqrt of negative exceptions

---
 .../unitto/feature/converter/MainViewModel.kt         | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/feature/converter/src/main/java/com/sadellie/unitto/feature/converter/MainViewModel.kt b/feature/converter/src/main/java/com/sadellie/unitto/feature/converter/MainViewModel.kt
index ceaed4dd..649a387f 100644
--- a/feature/converter/src/main/java/com/sadellie/unitto/feature/converter/MainViewModel.kt
+++ b/feature/converter/src/main/java/com/sadellie/unitto/feature/converter/MainViewModel.kt
@@ -436,11 +436,16 @@ class MainViewModel @Inject constructor(
             Expressions().eval(cleanInput)
         } catch (e: Exception) {
             when (e) {
+                // Invalid expression, don't do anything
                 is ArrayIndexOutOfBoundsException,
                 is IndexOutOfBoundsException,
-                is NumberFormatException,
-                is ExpressionException,
-                is ArithmeticException -> return
+                is ExpressionException -> return
+                // Divide by zero or SQRT of negative
+                is NumberFormatException, is ArithmeticException -> {
+                    _calculated.update { null }
+                    _result.update { "" }
+                    return
+                }
                 else -> throw e
             }
         }