diff options
Diffstat (limited to 'src/imap/search.rs')
| -rw-r--r-- | src/imap/search.rs | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/src/imap/search.rs b/src/imap/search.rs index bf1d30e..ef89288 100644 --- a/src/imap/search.rs +++ b/src/imap/search.rs @@ -69,12 +69,34 @@ impl<'a> Criteria<'a> { } } - fn need_meta(&self) { - unimplemented!(); + /// Not really clever as we can have cases where we filter out + /// the email before needing to inspect its meta. + /// But for now we are seeking the most basic/stupid algorithm. + pub fn need_meta(&self) -> bool { + use SearchKey::*; + match self.0 { + // IMF Headers + Bcc(_) | Cc(_) | From(_) | Header(..) | SentBefore(_) | SentOn(_) | SentSince(_) | Subject(_) | To(_) => true, + // Internal Date is also stored in MailMeta + Before(_) | On(_) | Since(_) => true, + // Message size is also stored in MailMeta + Larger(_) | Smaller(_) => true, + And(and_list) => and_list.as_ref().iter().any(|sk| Criteria(sk).need_meta()), + Not(inner) => Criteria(inner).need_meta(), + Or(left, right) => Criteria(left).need_meta() || Criteria(right).need_meta(), + _ => false, + } } - fn need_body(&self) { - unimplemented!(); + pub fn need_body(&self) -> bool { + use SearchKey::*; + match self.0 { + Text(_) | Body(_) => true, + And(and_list) => and_list.as_ref().iter().any(|sk| Criteria(sk).need_body()), + Not(inner) => Criteria(inner).need_body(), + Or(left, right) => Criteria(left).need_body() || Criteria(right).need_body(), + _ => false, + } } } |