From ab864fae45e21cae497133507fbbd90438958cf1 Mon Sep 17 00:00:00 2001
From: Ian Goldberg <iang@uwaterloo.ca>
Date: Sat, 1 May 2021 11:56:25 -0400
Subject: [PATCH] Handle the case where the migration table has illegal entries
 for some reason

---
 crates/lox-library/src/migration_table.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crates/lox-library/src/migration_table.rs b/crates/lox-library/src/migration_table.rs
index 081da54..7973d7a 100644
--- a/crates/lox-library/src/migration_table.rs
+++ b/crates/lox-library/src/migration_table.rs
@@ -156,7 +156,7 @@ impl MigrationTable {
     ) -> HashMap<[u8; 16], [u8; ENC_MIGRATION_BYTES]> {
         self.table
             .iter()
-            .map(|(from_id, to_id)| {
+            .filter_map(|(from_id, to_id)| {
                 encrypt_cred_ids(
                     id,
                     *from_id,
@@ -166,7 +166,6 @@ impl MigrationTable {
                     migration_priv,
                     migrationkey_priv,
                 )
-                .unwrap()
             })
             .collect()
     }