45 lines
978 B
Rust
45 lines
978 B
Rust
// #region code
|
|
use anchor_lang::prelude::*;
|
|
|
|
declare_id!("CwrqeMj2U8tFr1Rhkgwc84tpAsqbt9pTt2a4taoTADPr");
|
|
|
|
#[program]
|
|
pub mod basic_4 {
|
|
use super::*;
|
|
|
|
#[state]
|
|
pub struct Counter {
|
|
pub authority: Pubkey,
|
|
pub count: u64,
|
|
}
|
|
|
|
impl Counter {
|
|
pub fn new(ctx: Context<Auth>) -> anchor_lang::Result<Self> {
|
|
Ok(Self {
|
|
authority: *ctx.accounts.authority.key,
|
|
count: 0,
|
|
})
|
|
}
|
|
|
|
pub fn increment(&mut self, ctx: Context<Auth>) -> anchor_lang::Result<()> {
|
|
if &self.authority != ctx.accounts.authority.key {
|
|
return Err(error!(ErrorCode::Unauthorized));
|
|
}
|
|
self.count += 1;
|
|
Ok(())
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Accounts)]
|
|
pub struct Auth<'info> {
|
|
authority: Signer<'info>,
|
|
}
|
|
// #endregion code
|
|
|
|
#[error_code]
|
|
pub enum ErrorCode {
|
|
#[msg("You are not authorized to perform this action.")]
|
|
Unauthorized,
|
|
}
|