From c3b7b98d6b19bbebf0b5a29689feb9b7162c9864 Mon Sep 17 00:00:00 2001
From: Joe Wilm <joe@jwilm.com>
Date: Tue, 29 May 2018 11:13:49 -0700
Subject: Add assert to Row::grow

This enforces the invariant that Row::Grow is only called when the row
actually needs to be grown.
---
 src/grid/row.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/grid/row.rs b/src/grid/row.rs
index f7e4a98a..e907b61d 100644
--- a/src/grid/row.rs
+++ b/src/grid/row.rs
@@ -30,8 +30,10 @@ impl<T: Copy + Clone> Row<T> {
     }
 
     pub fn grow(&mut self, cols: Column, template: &T) {
+        assert!(self.len() < * cols);
+
         while self.len() != *cols {
-            self.push(*template);
+            self.inner.push(*template);
         }
     }
 
-- 
cgit