Attribute Macro anchor_lang::event_cpi

#[event_cpi]

Available on crate feature event-cpi only.

An attribute macro to add necessary event CPI accounts to the given accounts struct.

Two accounts named event_authority and program will be appended to the list of accounts.

Example

#[event_cpi]
#[derive(Accounts)]
pub struct MyInstruction<'info> {
   pub signer: Signer<'info>,
}

The code above will be expanded to:

#[derive(Accounts)]
pub struct MyInstruction<'info> {
   pub signer: Signer<'info>,
   /// CHECK: Only the event authority can invoke self-CPI
   #[account(seeds = [b"__event_authority"], bump)]
   pub event_authority: AccountInfo<'info>,
   /// CHECK: Self-CPI will fail if the program is not the current program
   pub program: AccountInfo<'info>,
}

See emit_cpi! for a full example.

Only available with event-cpi feature enabled.