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use std::{
ops,
marker,
iter
};
use error::Result;
use ffi;
use utils::{
NewFromPtr,
};
use Query;
use Message;
use Tags;
#[derive(Debug)]
pub struct Messages<'q, 'd:'q>(
// TODO: is this lifetime specifier correct?
// query may outlive messages.
pub(crate) *mut ffi::notmuch_messages_t,
marker::PhantomData<&'q mut Query<'d>>,
);
impl<'q, 'd> NewFromPtr<*mut ffi::notmuch_messages_t> for Messages<'q, 'd> {
fn new(ptr: *mut ffi::notmuch_messages_t) -> Messages<'q, 'd> {
Messages(ptr, marker::PhantomData)
}
}
impl<'q, 'd> Messages<'q, 'd>{
pub fn collect_tags(self: &Self) -> Tags{
Tags::new(unsafe {
ffi::notmuch_messages_collect_tags(self.0)
})
}
}
impl<'q, 'd> ops::Drop for Messages<'q, 'd> {
fn drop(&mut self) {
unsafe {
ffi::notmuch_messages_destroy(self.0)
};
}
}
impl<'q, 'd> iter::Iterator for Messages<'q, 'd> {
type Item = Message<'q, 'd>;
fn next(&mut self) -> Option<Self::Item> {
let valid = unsafe {
ffi::notmuch_messages_valid(self.0)
};
if valid == 0{
return None
}
let cmsg = unsafe {
let msg = ffi::notmuch_messages_get(self.0);
ffi::notmuch_messages_move_to_next(self.0);
msg
};
Some(Self::Item::new(cmsg))
}
}
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