clippy fixes for rust 1.75.0

src/buffer.rs

@@ -124,7 +124,7 @@ impl AudioBuffer {
 
     /// Number of samples per channel in this `AudioBuffer`
     pub fn length(&self) -> usize {
-        self.channels.get(0).map(ChannelData::len).unwrap_or(0)
+        self.channels.first().map(ChannelData::len).unwrap_or(0)
     }
 
     /// Sample rate of this `AudioBuffer` in Hertz

src/context/online.rs

@@ -265,7 +265,7 @@ impl AudioContext {
         let mut pending_msgs: Vec<_> = self.render_thread_init.ctrl_msg_recv.try_iter().collect();
 
         // Acquire the active audio graph from the current render thread, shutting it down
-        let graph = if matches!(pending_msgs.get(0), Some(ControlMessage::Startup { .. })) {
+        let graph = if matches!(pending_msgs.first(), Some(ControlMessage::Startup { .. })) {
             // Handle the edge case where the previous backend was suspended for its entire lifetime.
             // In this case, the `Startup` control message was never processed.
             let msg = pending_msgs.remove(0);

src/param.rs

@@ -226,15 +226,15 @@ impl AudioParamEventTimeline {
     }
 
     fn unsorted_peek(&self) -> Option<&AudioParamEvent> {
-        self.inner.get(0)
+        self.inner.first()
     }
 
     // panic if dirty, we are doing something wrong here
     fn peek(&self) -> Option<&AudioParamEvent> {
         if self.dirty {
             panic!("`AudioParamEventTimeline`: Invalid `.peek()` call, the queue is dirty");
         }
-        self.inner.get(0)
+        self.inner.first()
     }
 
     fn next(&self) -> Option<&AudioParamEvent> {

src/render/graph.rs

@@ -103,7 +103,7 @@ impl Node {
 
     /// Get the current buffer for AudioParam values
     pub fn get_buffer(&self) -> &AudioRenderQuantum {
-        self.outputs.get(0).unwrap()
+        self.outputs.first().unwrap()
     }
 }
 

src/render/thread.rs

@@ -204,7 +204,7 @@ impl RenderThread {
 
         for quantum in 0..num_frames {
             // Suspend at given times and run callbacks
-            if suspend_callbacks.get(0).map(|&(q, _)| q) == Some(quantum) {
+            if suspend_callbacks.first().map(|&(q, _)| q) == Some(quantum) {
                 let callback = suspend_callbacks.remove(0).1;
                 (callback)(context);
 
@@ -243,7 +243,7 @@ impl RenderThread {
 
         for quantum in 0..num_frames {
             // Suspend at given times and run callbacks
-            if suspend_callbacks.get(0).map(|&(q, _)| q) == Some(quantum) {
+            if suspend_callbacks.first().map(|&(q, _)| q) == Some(quantum) {
                 let sender = suspend_callbacks.remove(0).1;
                 sender.send(()).unwrap();
                 resume_receiver.next().await;

src/worklet.rs

@@ -324,7 +324,7 @@ impl AudioProcessor for AudioWorkletRenderer {
         // Create an iterator for the output channel counts without allocating, handling also the
         // case where self.output_channel_count is empty.
         let single_case = [inputs
-            .get(0)
+            .first()
             .map(|i| i.number_of_channels())
             .unwrap_or_default()];
         let output_channel_count = if self.output_channel_count.is_empty() {