autoregister sampler ports

crates/edn/src/lib.rs

@@ -60,18 +60,7 @@ from_edn!("sampler" => |jack: &Arc<RwLock<JackClient>>, args| -> crate::Sampler
         },
         _ => panic!("unexpected in sampler {name}: {edn:?}")
     });
-    let midi_in = jack.read().unwrap().client().register_port("in", MidiIn::default())?;
-    Ok(Self {
-        jack:        jack.clone(),
-        mapped:      samples,
-        unmapped:    Default::default(),
-        voices:      Default::default(),
-        buffer:      Default::default(),
-        audio_outs:  vec![],
-        output_gain: 0.,
-        midi_in,
-        name,
-    })
+    Self::new(jack, &name)
 });
 
 type MidiSample = (Option<u7>, Arc<RwLock<crate::Sample>>);