loggable trait

lib/src/log.rs

@@ -0,0 +1 @@
+use solana_program::log::sol_log;

lib/src/macros.rs

@@ -156,6 +156,16 @@ macro_rules! event {
     ($struct_name:ident) => {
         $crate::impl_to_bytes!($struct_name);
         $crate::impl_from_bytes!($struct_name);
+
+        impl $crate::Loggable for $struct_name {
+            fn log(&self) {
+                solana_program::log::sol_log_data(&[self.to_bytes()]);
+            }
+
+            fn log_return(&self) {
+                solana_program::program::set_return_data(self.to_bytes());
+            }
+        }
     };
 }
 

lib/src/traits.rs

@@ -150,6 +150,11 @@ pub trait CloseAccount<'a, 'info> {
     fn close(&'a self, to: &'a AccountInfo<'info>) -> Result<(), ProgramError>;
 }
 
+pub trait Loggable {
+    fn log(&self);
+    fn log_return(&self);
+}
+
 pub trait ProgramOwner {
     fn owner() -> Pubkey;
 }