From 939b82fd983f4e2fd0df92ce3cf324641933c7f1 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 4 May 2022 20:08:52 +0100
Subject: [PATCH] size handling: Make OutlineOccultable return type Copy

It is.  Declare it, so we can reuse it nicely.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 src/shapelib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shapelib.rs b/src/shapelib.rs
index 0521bbca..4bedf3c3 100644
--- a/src/shapelib.rs
+++ b/src/shapelib.rs
@@ -221,7 +221,7 @@ impl<T> SvgBaseName<T> where T: Borrow<GoodItemName> {
 }
 
 impl OutlineCalculable {
-  pub fn err_mapper(&self) -> impl Fn(LLE) -> IE {
+  pub fn err_mapper(&self) -> impl Fn(LLE) -> IE + Copy {
     |e| internal_logic_error(format!(
       "outline calculable but failed {} {:?}",&e,&e
     ))
-- 
2.30.2