openpgp: Pass MessageStructure by value, not reference.

  - Instead of passing MessageStructure to VerificationHelper::check
    by reference, pass it by value.

  - After calling VerificationHelper::check, it is dropped.  Passing
    it by value allows the caller to avoid some cloning.

1 files changed, 1 insertions, 1 deletions

diff --git a/openpgp/examples/generate-encrypt-decrypt.rs b/openpgp/examples/generate-encrypt-decrypt.rs
index d431e99c..4d456193 100644
--- a/openpgp/examples/generate-encrypt-decrypt.rs
+++ b/openpgp/examples/generate-encrypt-decrypt.rs
@@ -100,7 +100,7 @@ impl<'a> VerificationHelper for Helper<'a> {
         Ok(Vec::new())
     }
 
-    fn check(&mut self, _structure: &MessageStructure)
+    fn check(&mut self, _structure: MessageStructure)
              -> openpgp::Result<()> {
         // Implement your signature verification policy here.
         Ok(())