Add a reverse DNS ID field to ClapPlugin

plugins/diopser/src/lib.rs

@@ -410,7 +410,9 @@ fn unnormalize_automation_precision(normalized: f32) -> u32 {
         - (normalized * (MAX_AUTOMATION_STEP_SIZE - MIN_AUTOMATION_STEP_SIZE) as f32).round() as u32
 }
 
-impl ClapPlugin for Diopser {}
+impl ClapPlugin for Diopser {
+    const CLAP_ID: &'static str = "nl.robbertvanderhelm.diopser";
+}
 
 impl Vst3Plugin for Diopser {
     const VST3_CLASS_ID: [u8; 16] = *b"DiopserPlugRvdH.";

plugins/examples/gain-gui/src/lib.rs

@@ -202,7 +202,9 @@ impl Plugin for Gain {
     }
 }
 
-impl ClapPlugin for Gain {}
+impl ClapPlugin for Gain {
+    const CLAP_ID: &'static str = "com.moist-plugins-gmbh.gain";
+}
 
 impl Vst3Plugin for Gain {
     const VST3_CLASS_ID: [u8; 16] = *b"GainGuiYeahBoyyy";

plugins/examples/gain/src/lib.rs

@@ -129,7 +129,9 @@ impl Plugin for Gain {
     }
 }
 
-impl ClapPlugin for Gain {}
+impl ClapPlugin for Gain {
+    const CLAP_ID: &'static str = "com.moist-plugins-gmbh.gain";
+}
 
 impl Vst3Plugin for Gain {
     const VST3_CLASS_ID: [u8; 16] = *b"GainMoistestPlug";

plugins/examples/sine/src/lib.rs

@@ -176,7 +176,9 @@ impl Plugin for Sine {
     }
 }
 
-impl ClapPlugin for Sine {}
+impl ClapPlugin for Sine {
+    const CLAP_ID: &'static str = "com.moist-plugins-gmbh.sine";
+}
 
 impl Vst3Plugin for Sine {
     const VST3_CLASS_ID: [u8; 16] = *b"SineMoistestPlug";

src/plugin.rs

@@ -103,7 +103,9 @@ pub trait Plugin: Default + Send + Sync + 'static {
 
 /// Provides auxiliary metadata needed for a CLAP plugin.
 pub trait ClapPlugin: Plugin {
-    // TODO: Add the required fields, just like the [Vst3Plugin] trait
+    /// A unique ID that identifies this particular plugin. This is usually in reverse domain name
+    /// notation, e.g. `com.manufacturer.plugin-name`.
+    const CLAP_ID: &'static str;
 }
 
 /// Provides auxiliary metadata needed for a VST3 plugin.