litesvm_token/
close_account.rs

1use {
2    super::{get_multisig_signers, spl_token::instruction::close_account, TOKEN_ID},
3    litesvm::{types::FailedTransactionMetadata, LiteSVM},
4    smallvec::{smallvec, SmallVec},
5    solana_keypair::Keypair,
6    solana_pubkey::Pubkey,
7    solana_signer::{signers::Signers, Signer},
8    solana_transaction::Transaction,
9};
10
11/// ### Description
12/// Builder for the [`close_account`] instruction.
13///
14/// ### Optional fields
15/// - `owner`: `payer` by default.
16/// - `token_program_id`: [`TOKEN_ID`] by default.
17pub struct CloseAccount<'a> {
18    svm: &'a mut LiteSVM,
19    payer: &'a Keypair,
20    account: &'a Pubkey,
21    destination: &'a Pubkey,
22    token_program_id: Option<&'a Pubkey>,
23    signers: SmallVec<[&'a Keypair; 1]>,
24    owner: Option<Pubkey>,
25}
26
27impl<'a> CloseAccount<'a> {
28    /// Creates a new instance of [`close_account`] instruction.
29    pub fn new(
30        svm: &'a mut LiteSVM,
31        payer: &'a Keypair,
32        account: &'a Pubkey,
33        destination: &'a Pubkey,
34    ) -> Self {
35        CloseAccount {
36            svm,
37            payer,
38            account,
39            destination,
40            owner: None,
41            signers: smallvec![payer],
42            token_program_id: None,
43        }
44    }
45
46    /// Sets the owner of the account with single owner.
47    pub fn owner(mut self, owner: &'a Keypair) -> Self {
48        self.owner = Some(owner.pubkey());
49        self.signers = smallvec![owner];
50        self
51    }
52
53    /// Sets the owner of the account with multisig owner.
54    pub fn multisig(mut self, multisig: &'a Pubkey, signers: &'a [&'a Keypair]) -> Self {
55        self.owner = Some(*multisig);
56        self.signers = SmallVec::from(signers);
57        self
58    }
59
60    /// Sets the token program id for the instruction.
61    pub fn token_program_id(mut self, program_id: &'a Pubkey) -> Self {
62        self.token_program_id = Some(program_id);
63        self
64    }
65
66    /// Sends the transaction.
67    pub fn send(self) -> Result<(), FailedTransactionMetadata> {
68        let token_program_id = self.token_program_id.unwrap_or(&TOKEN_ID);
69        let payer_pk = self.payer.pubkey();
70
71        let authority = self.owner.unwrap_or(payer_pk);
72        let signing_keys = self.signers.pubkeys();
73        let signer_keys = get_multisig_signers(&authority, &signing_keys);
74
75        let ix = close_account(
76            token_program_id,
77            self.account,
78            self.destination,
79            &authority,
80            &signer_keys,
81        )?;
82
83        let block_hash = self.svm.latest_blockhash();
84        let mut tx = Transaction::new_with_payer(&[ix], Some(&payer_pk));
85        tx.partial_sign(&[self.payer], block_hash);
86        tx.partial_sign(self.signers.as_ref(), block_hash);
87
88        self.svm.send_transaction(tx)?;
89
90        Ok(())
91    }
92}
litesvm_token/close_account.rs

litesvm_token/
close_account.rs
