feat: extend api with iterator for routes

Forward iterator access to the routes to allow collecting
them as a client. This allows eg. collecting the routes
to subscribe them when using the router in an MQTT usecase.

Signed-off-by: Marc Bodmer <[email protected]>

Author: mbodmer

src/lib.rs

@@ -142,7 +142,7 @@ use alloc::{
     string::{String, ToString},
     vec::Vec,
 };
-use core::str::from_utf8;
+use core::{slice::Iter, str::from_utf8};
 use smallvec::SmallVec;
 
 mod node;
@@ -258,6 +258,10 @@ impl<T> PathTree<T> {
             from_utf8(&bytes).map(ToString::to_string).ok()
         })
     }
+
+    pub fn iter(&self) -> Iter<'_, (T, Vec<Piece>)> {
+        self.routes.iter()
+    }
 }
 
 /// Matched route path infomation.