From d28aed6dc45ffccc790469cb04f3f775ddb2283a Mon Sep 17 00:00:00 2001
From: ljedrz <ljedrz@gmail.com>
Date: Fri, 12 Oct 2018 16:16:00 +0200
Subject: Prefer unwrap_or_else to unwrap_or in case of function
 calls/allocations

---
 src/libsyntax/parse/parser.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libsyntax/parse')

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index c7089a295fc..9c47589a0bd 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -3228,7 +3228,7 @@ impl<'a> Parser<'a> {
                         }));
 
                         let expr_str = self.sess.source_map().span_to_snippet(expr.span)
-                                                .unwrap_or(pprust::expr_to_string(&expr));
+                                                .unwrap_or_else(|_| pprust::expr_to_string(&expr));
                         err.span_suggestion_with_applicability(
                             expr.span,
                             &format!("try {} the cast value", op_verb),
-- 
cgit 1.4.1-3-g733a5