openpgp: Implement From<PacketPile> for Vec<Packet>

  - Provide a conversion from `PacketPile` to `Vec<Packet>` using
    idiomatic interfaces.

  - It would be nicer to implement `IntoIterator`, but
    `PacketPile::into_children` doesn't have a concrete type (it
    returns an `impl Iterator`).

1 files changed, 6 insertions, 0 deletions

diff --git a/openpgp/src/packet_pile.rs b/openpgp/src/packet_pile.rs
index ff9f981f..e30ab009 100644
--- a/openpgp/src/packet_pile.rs
+++ b/openpgp/src/packet_pile.rs
@@ -178,6 +178,12 @@ impl FromIterator<Packet> for PacketPile {
     }
 }
 
+impl From<PacketPile> for Vec<Packet> {
+    fn from(pp: PacketPile) -> Self {
+        pp.into_children().collect()
+    }
+}
+
 impl PacketPile {
     /// Accessor for PacketPileParser.
     pub(crate) fn top_level_mut(&mut self) -> &mut Container {