Fix unused/dead code warnings with VST3 disabled

src/event_loop.rs

@@ -13,13 +13,13 @@ mod windows;
 
 pub(crate) use self::background_thread::BackgroundThread;
 
-#[allow(unused_imports)]
+#[cfg_attr(not(feature = "vst3"), allow(unused_imports))]
 #[cfg(all(target_family = "unix", not(target_os = "macos")))]
 pub(crate) use self::linux::LinuxEventLoop as OsEventLoop;
-#[allow(unused_imports)]
+#[cfg_attr(not(feature = "vst3"), allow(unused_imports))]
 #[cfg(target_os = "macos")]
 pub(crate) use self::macos::MacOSEventLoop as OsEventLoop;
-#[allow(unused_imports)]
+#[cfg_attr(not(feature = "vst3"), allow(unused_imports))]
 #[cfg(target_os = "windows")]
 pub(crate) use self::windows::WindowsEventLoop as OsEventLoop;
 

src/midi.rs

@@ -598,6 +598,7 @@ impl<S: SysExMessage> NoteEvent<S> {
 
     /// Subtract a sample offset from this event's timing, needed to compensate for the block
     /// splitting in the VST3 wrapper implementation because all events have to be read upfront.
+    #[cfg_attr(not(feature = "vst3"), allow(dead_code))]
     pub(crate) fn subtract_timing(&mut self, samples: u32) {
         match self {
             NoteEvent::NoteOn { timing, .. } => *timing -= samples,

src/plugin.rs

@@ -263,12 +263,12 @@ pub trait Vst3Plugin: Plugin {
     const PLATFORM_VST3_CLASS_ID: [u8; 16] = swap_vst3_uid_byte_order(Self::VST3_CLASS_ID);
 }
 
-#[cfg(not(target_os = "windows"))]
+#[cfg(all(feature = "vst3", not(target_os = "windows")))]
 const fn swap_vst3_uid_byte_order(uid: [u8; 16]) -> [u8; 16] {
     uid
 }
 
-#[cfg(target_os = "windows")]
+#[cfg(all(feature = "vst3", target_os = "windows"))]
 const fn swap_vst3_uid_byte_order(mut uid: [u8; 16]) -> [u8; 16] {
     // No mutable references in const functions, so we can't use `uid.swap()`
     let original_uid = uid;