From 9348a9a9163cb2bb5b0c5fdaba93b9ec6e7d14b5 Mon Sep 17 00:00:00 2001
From: Nathan Vegdahl <cessen@cessen.com>
Date: Thu, 5 Jul 2018 05:01:57 -0700
Subject: [PATCH] Another small optimization.

---
 Cargo.lock   | 2 +-
 src/utils.rs | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index ac050e3..167c597 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -88,7 +88,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "ropey"
 version = "0.6.3"
-source = "git+https://github.com/cessen/ropey#140e79caa4b8d0215e6f0b70c7269a6715e53498"
+source = "git+https://github.com/cessen/ropey#e6a449e07841da690f369eeb9ef05d55fe102623"
 dependencies = [
  "smallvec 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
diff --git a/src/utils.rs b/src/utils.rs
index 624d78d..65cc292 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -17,8 +17,12 @@ pub fn digit_count(mut n: u32, b: u32) -> u32 {
 
 pub fn grapheme_width(slice: &RopeSlice) -> usize {
     use term_ui::smallstring::SmallString;
-    let s = SmallString::from_rope_slice(slice);
-    return UnicodeWidthStr::width(&s[..]);
+    if let Some(text) = slice.as_str() {
+        return UnicodeWidthStr::width(text);
+    } else {
+        let text = SmallString::from_rope_slice(slice);
+        return UnicodeWidthStr::width(&text[..]);
+    }
 }
 
 /// Finds the previous grapheme boundary before the given char position.