Python: use getter/setter for AudioParam value

Author: orottier

python/main.py

@@ -0,0 +1,15 @@
+import web_audio_api
+from time import sleep
+
+ctx = web_audio_api.AudioContext()
+osc = web_audio_api.OscillatorNode(ctx)
+osc.connect(ctx.destination())
+osc.start()
+
+print("freq =", osc.frequency().value);
+sleep(4)
+
+osc.frequency().value = 300
+print("freq =", osc.frequency().value);
+
+sleep(4)

python/src/lib.rs

@@ -42,12 +42,15 @@ struct AudioParam(web_audio_api_rs::AudioParam);
 
 #[pymethods]
 impl AudioParam {
-    fn value(&self) -> f32 {
-        self.0.value()
+    #[getter]
+    fn value(&self) -> PyResult<f32> {
+        Ok(self.0.value())
     }
 
-    fn set_value(&self, value: f32) -> Self {
-        Self(self.0.set_value(value).clone())
+    #[setter]
+    fn set_value(&self, value: f32) -> PyResult<()> {
+        self.0.set_value(value);
+        Ok(())
     }
 }