From 6084b394b3794b29b0751e90fe278f86bf133666 Mon Sep 17 00:00:00 2001
From: chrysn <chrysn@fsfe.org>
Date: Fri, 24 Aug 2018 13:57:59 +0200
Subject: Debug implementation: use core if selected

Contributes-To: https://github.com/rust-lang-nursery/rust-bindgen/issues/1100
---
 src/codegen/impl_debug.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/codegen/impl_debug.rs')

diff --git a/src/codegen/impl_debug.rs b/src/codegen/impl_debug.rs
index 0842d849..a604fc92 100644
--- a/src/codegen/impl_debug.rs
+++ b/src/codegen/impl_debug.rs
@@ -42,8 +42,10 @@ pub fn gen_debug_impl(
     format_string.push_str(" }}");
     tokens.insert(0, quote! { #format_string });
 
+    let prefix = ctx.trait_prefix();
+
     quote! {
-        fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        fn fmt(&self, f: &mut ::#prefix::fmt::Formatter) -> ::#prefix ::fmt::Result {
             write!(f, #( #tokens ),*)
         }
     }
-- 
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