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anchor_spl/token_2022_extensions/
immutable_owner.rs

1// Avoiding AccountInfo deprecated msg in anchor context
2#![allow(deprecated)]
3use {
4    anchor_lang::{
5        context::CpiContext,
6        solana_program::{account_info::AccountInfo, pubkey::Pubkey},
7        Accounts, Result,
8    },
9    spl_token_2022_interface as spl_token_2022,
10};
11
12pub fn immutable_owner_initialize<'info>(
13    ctx: CpiContext<'_, '_, '_, 'info, ImmutableOwnerInitialize<'info>>,
14) -> Result<()> {
15    let ix = spl_token_2022::instruction::initialize_immutable_owner(
16        ctx.accounts.token_program_id.key,
17        ctx.accounts.token_account.key,
18    )?;
19    anchor_lang::solana_program::program::invoke_signed(
20        &ix,
21        &[ctx.accounts.token_program_id, ctx.accounts.token_account],
22        ctx.signer_seeds,
23    )
24    .map_err(Into::into)
25}
26
27#[derive(Accounts)]
28pub struct ImmutableOwnerInitialize<'info> {
29    pub token_program_id: AccountInfo<'info>,
30    pub token_account: AccountInfo<'info>,
31}