diff options
author | Matthias Beyer <mail@beyermatthias.de> | 2016-10-04 14:19:36 +0200 |
---|---|---|
committer | Matthias Beyer <mail@beyermatthias.de> | 2016-10-12 19:17:41 +0200 |
commit | 0250a2c66259f147962ec40cbf86bfb5de04c886 (patch) | |
tree | a2d36d2ea8e2494ef9b9465813c6e041987463ab /libimagmail | |
parent | af54e621a83cfadb63569f63f722301c60661168 (diff) |
Add MailIter
Diffstat (limited to 'libimagmail')
-rw-r--r-- | libimagmail/src/iter.rs | 37 | ||||
-rw-r--r-- | libimagmail/src/lib.rs | 1 |
2 files changed, 38 insertions, 0 deletions
diff --git a/libimagmail/src/iter.rs b/libimagmail/src/iter.rs new file mode 100644 index 00000000..365a0928 --- /dev/null +++ b/libimagmail/src/iter.rs @@ -0,0 +1,37 @@ +//! Module for the MailIter +//! +//! MailIter is a iterator which takes an Iterator that yields `Ref` and yields itself +//! `Result<Mail>`, where `Err(_)` is returned if the Ref is not a Mail or parsing of the +//! referenced mail file failed. +//! + +use mail::Mail; +use result::Result; + +use libimagref::reference::Ref; + +use std::marker::PhantomData; + +struct MailIter<'a, I: 'a + Iterator<Item = Ref<'a>>> { + _marker: PhantomData<&'a I>, + i: I, +} + +impl<'a, I: Iterator<Item = Ref<'a>>> MailIter<'a, I> { + + pub fn new(i: I) -> MailIter<'a, I> { + MailIter { _marker: PhantomData, i: i } + } + +} + +impl<'a, I: Iterator<Item = Ref<'a>>> Iterator for MailIter<'a, I> { + + type Item = Result<Mail<'a>>; + + fn next(&mut self) -> Option<Result<Mail<'a>>> { + self.i.next().map(Mail::from_ref) + } + +} + diff --git a/libimagmail/src/lib.rs b/libimagmail/src/lib.rs index e4db2f4f..1d88a069 100644 --- a/libimagmail/src/lib.rs +++ b/libimagmail/src/lib.rs @@ -10,6 +10,7 @@ extern crate libimagref; pub mod error; pub mod hasher; +pub mod iter; pub mod mail; pub mod result; |