1 files changed, 9 insertions, 0 deletions
diff --git a/src/mail/uidindex.rs b/src/mail/uidindex.rs
index 7160ec6..736c763 100644
--- a/src/mail/uidindex.rs
+++ b/src/mail/uidindex.rs
@@ -36,6 +36,7 @@ pub enum UidIndexOp {
     MailDel(UniqueIdent),
     FlagAdd(UniqueIdent, Vec<Flag>),
     FlagDel(UniqueIdent, Vec<Flag>),
+    BumpUidvalidity(u32),
 }
 
 impl UidIndex {
@@ -59,6 +60,11 @@ impl UidIndex {
         UidIndexOp::FlagDel(ident, flags)
     }
 
+    #[must_use]
+    pub fn op_bump_uidvalidity(&self, count: u32) -> UidIndexOp {
+        UidIndexOp::BumpUidvalidity(count)
+    }
+
     // INTERNAL functions to keep state consistent
 
     fn reg_email(&mut self, ident: UniqueIdent, uid: ImapUid, flags: &Vec<Flag>) {
@@ -156,6 +162,9 @@ impl BayouState for UidIndex {
                     new.idx_by_flag.remove(*uid, rm_flags);
                 }
             }
+            UidIndexOp::BumpUidvalidity(count) => {
+                new.uidvalidity = ImapUidvalidity::new(new.uidvalidity.get() + *count).unwrap_or(ImapUidvalidity::new(u32::MAX).unwrap());
+            }
         }
         new
     }