From b689ab47f2260345a03130a2a2e8d9dda0ca25ef Mon Sep 17 00:00:00 2001
From: Andrew Guschin <guschin.drew@gmail.com>
Date: Mon, 26 Sep 2022 03:59:12 +0400
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---
 src/lab3.rs | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

(limited to 'src/lab3.rs')

diff --git a/src/lab3.rs b/src/lab3.rs
index b4adbf3..7f8edf5 100644
--- a/src/lab3.rs
+++ b/src/lab3.rs
@@ -4,7 +4,8 @@ use rug::{Complete, Integer};
 
 enum State {
     Clean,
-    Done
+    Done,
+    Error,
 }
 
 pub struct Window {
@@ -36,9 +37,14 @@ impl Lab for Window {
             }
         });
         if ui.button("Разложить на множители").clicked() {
-            let number = Integer::parse(&self.str_num).unwrap().complete();
-            self.factors.append(&mut factorize(&number));
-            self.state = State::Done;
+            self.factors.clear();
+            match Integer::parse(&self.str_num) {
+                Ok(number) => {
+                    self.factors.append(&mut factorize(&number.complete()));
+                    self.state = State::Done;
+                },
+                Err(_) => self.state = State::Error,
+            };
         }
         if let State::Done = self.state {
             if self.factors.len() == 1 {
@@ -48,6 +54,9 @@ impl Lab for Window {
                 ui.label(format!("Множители: {:?}", self.factors));
             }
         }
+        if let State::Error = self.state {
+            ui.label("В числе имеются недопустимые символы");
+        }
     }
 }
 
-- 
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