Add Message::{date,add_tag,remove_tag,remove_all_tags} and make clippy usable (#6)

* Removing unnecessary lifetimes and borrows

* Add Message::{date,add_tag,remove_tag,remove_all_tags}

* Make sure clippy doesn't error out

3 files changed, 35 insertions, 7 deletions

diff --git a/src/ffi.rs b/src/ffi.rs
index 3c281fa..373dc53 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -47,14 +47,14 @@ notmuch_enum! {
 }
 
 impl notmuch_status_t {
-    pub fn is_ok(&self) -> bool {
-       match *self {
+    pub fn is_ok(self) -> bool {
+       match self {
             notmuch_status_t::NOTMUCH_STATUS_SUCCESS => true,
             _ => false,
         }
     }
 
-    pub fn is_err(&self) -> bool {
+    pub fn is_err(self) -> bool {
        !self.is_ok()
     }
 
diff --git a/src/message.rs b/src/message.rs
index 624817d..ed72997 100644
--- a/src/message.rs
+++ b/src/message.rs
@@ -5,6 +5,7 @@ use supercow::Phantomcow;
 
 use error::{Error, Result};
 use ffi;
+use ffi::Status;
 use utils::ToStr;
 use Filenames;
 use FilenamesOwner;
@@ -57,7 +58,7 @@ impl<'o, Owner: MessageOwner + 'o> Message<'o, Owner> {
         tid.to_str().unwrap().to_string()
     }
 
-    pub fn replies<'s>(self: &'s Self) -> Messages<'s, Self> {
+    pub fn replies(self: &Self) -> Messages<Self> {
         Messages::from_ptr(
             unsafe { ffi::notmuch_message_get_replies(self.handle.ptr) },
             self,
@@ -84,9 +85,16 @@ impl<'o, Owner: MessageOwner + 'o> Message<'o, Owner> {
         )
     }
 
+    pub fn date(&self) -> i64 {
+        unsafe {
+            ffi::notmuch_message_get_date(self.handle.ptr)
+        }
+    }
+
     pub fn header(&self, name: &str) -> Result<&str> {
+        let name = CString::new(name).unwrap();
         let ret = unsafe {
-            ffi::notmuch_message_get_header(self.handle.ptr, CString::new(name).unwrap().as_ptr())
+            ffi::notmuch_message_get_header(self.handle.ptr, name.as_ptr())
         };
         if ret.is_null() {
             Err(Error::UnspecifiedError)
@@ -95,12 +103,32 @@ impl<'o, Owner: MessageOwner + 'o> Message<'o, Owner> {
         }
     }
 
-    pub fn tags<'m>(&'m self) -> Tags<'m, Self> {
+    pub fn tags(&self) -> Tags<Self> {
         Tags::from_ptr(
             unsafe { ffi::notmuch_message_get_tags(self.handle.ptr) },
             self,
         )
     }
+
+    pub fn add_tag(self: &Self, tag: &str) -> Status {
+        let tag = CString::new(tag).unwrap();
+        Status::from(unsafe {
+            ffi::notmuch_message_add_tag(self.handle.ptr, tag.as_ptr())
+        })
+    }
+
+    pub fn remove_tag(self: &Self, tag: &str) -> Status {
+        let tag = CString::new(tag).unwrap();
+        Status::from(unsafe {
+            ffi::notmuch_message_remove_tag(self.handle.ptr, tag.as_ptr())
+        })
+    }
+
+    pub fn remove_all_tags(self: &Self) -> Status {
+        Status::from(unsafe {
+            ffi::notmuch_message_remove_all_tags(self.handle.ptr)
+        })
+    }
 }
 
 unsafe impl<'o, Owner: MessageOwner + 'o> Send for Message<'o, Owner> {}
diff --git a/src/thread.rs b/src/thread.rs
index 9a63c94..c112e06 100644
--- a/src/thread.rs
+++ b/src/thread.rs
@@ -71,7 +71,7 @@ impl<'o, Owner: ThreadOwner + 'o> Thread<'o, Owner> {
         )
     }
 
-    pub fn tags<'t>(&'t self) -> Tags<'t, Self> {
+    pub fn tags(&self) -> Tags<Self> {
         Tags::from_ptr(
             unsafe { ffi::notmuch_thread_get_tags(self.handle.ptr) },
             self,