buffered-reader: Add Debug trait bound to Cookie.

1 files changed, 6 insertions, 6 deletions

diff --git a/buffered-reader/src/file_generic.rs b/buffered-reader/src/file_generic.rs
index 0a073165..4a1cb830 100644
--- a/buffered-reader/src/file_generic.rs
+++ b/buffered-reader/src/file_generic.rs
@@ -10,15 +10,15 @@ use crate::file_error::FileError;
 ///
 /// This is a generic implementation that may be replaced by
 /// platform-specific versions.
-pub struct File<C>(Generic<fs::File, C>, PathBuf);
+pub struct File<C: fmt::Debug>(Generic<fs::File, C>, PathBuf);
 
-impl<C> fmt::Display for File<C> {
+impl<C: fmt::Debug> fmt::Display for File<C> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "File {:?}", self.1.display())
     }
 }
 
-impl<C> fmt::Debug for File<C> {
+impl<C: fmt::Debug> fmt::Debug for File<C> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_tuple("File")
             .field(&self.0)
@@ -34,7 +34,7 @@ impl File<()> {
     }
 }
 
-impl<C> File<C> {
+impl<C: fmt::Debug> File<C> {
     /// Like `open()`, but sets a cookie.
     pub fn with_cookie<P: AsRef<Path>>(path: P, cookie: C) -> io::Result<Self> {
         let path = path.as_ref();
@@ -43,14 +43,14 @@ impl<C> File<C> {
     }
 }
 
-impl<C> io::Read for File<C> {
+impl<C: fmt::Debug> io::Read for File<C> {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         self.0.read(buf)
             .map_err(|e| FileError::new(&self.1, e))
     }
 }
 
-impl<C> BufferedReader<C> for File<C> {
+impl<C: fmt::Debug> BufferedReader<C> for File<C> {
     fn buffer(&self) -> &[u8] {
         self.0.buffer()
     }