hpsvm_token/
create_account.rs

1use hpsvm::{HPSVM, types::FailedTransactionMetadata};
2use solana_address::Address;
3use solana_keypair::Keypair;
4#[cfg(not(feature = "token-2022"))]
5use solana_program_pack::Pack;
6use solana_signer::Signer;
7use solana_system_interface::instruction::create_account;
8use solana_transaction::Transaction;
9#[cfg(feature = "token-2022")]
10use spl_token_2022_interface::extension::ExtensionType;
11
12use super::{
13    TOKEN_ID,
14    spl_token::{instruction::initialize_account3, state::Account},
15};
16
17/// ### Description
18/// Builder for the [`initialize_account3`] instruction.
19///
20/// ### Optional fields
21/// - `owner`: `payer` by default.
22/// - `account_kp`: [`Keypair::new()`] by default.
23#[derive(Debug)]
24pub struct CreateAccount<'a> {
25    svm: &'a mut HPSVM,
26    payer: &'a Keypair,
27    mint: &'a Address,
28    owner: Option<&'a Address>,
29    account_kp: Option<Keypair>,
30    token_program_id: Option<&'a Address>,
31    #[cfg(feature = "token-2022")]
32    extensions: Vec<ExtensionType>,
33}
34
35impl<'a> CreateAccount<'a> {
36    /// Creates a new instance of the [`initialize_account3`] instruction.
37    pub const fn new(svm: &'a mut HPSVM, payer: &'a Keypair, mint: &'a Address) -> Self {
38        CreateAccount {
39            svm,
40            payer,
41            mint,
42            owner: None,
43            account_kp: None,
44            token_program_id: None,
45            #[cfg(feature = "token-2022")]
46            extensions: vec![],
47        }
48    }
49
50    /// Sets the owner of the spl account.
51    pub const fn owner(mut self, owner: &'a Address) -> Self {
52        self.owner = Some(owner);
53        self
54    }
55
56    /// Sets the [`Keypair`] of the spl account.
57    pub fn account_kp(mut self, account_kp: Keypair) -> Self {
58        self.account_kp = Some(account_kp);
59        self
60    }
61
62    /// Sets the token program id of the spl account.
63    pub const fn token_program_id(mut self, program_id: &'a Address) -> Self {
64        self.token_program_id = Some(program_id);
65        self
66    }
67
68    /// Sends the transaction.
69    pub fn send(self) -> Result<Address, FailedTransactionMetadata> {
70        #[cfg(feature = "token-2022")]
71        let account_len = ExtensionType::try_calculate_account_len::<Account>(&self.extensions)?;
72        #[cfg(not(feature = "token-2022"))]
73        let account_len = Account::LEN;
74
75        let lamports = self.svm.minimum_balance_for_rent_exemption(account_len);
76
77        let account_kp = self.account_kp.unwrap_or(Keypair::new());
78        let account_pk = account_kp.pubkey();
79        let token_program_id = self.token_program_id.unwrap_or(&TOKEN_ID);
80        let payer_pk = self.payer.pubkey();
81
82        let ix1 =
83            create_account(&payer_pk, &account_pk, lamports, account_len as u64, token_program_id);
84
85        let ix2 = initialize_account3(
86            token_program_id,
87            &account_pk,
88            self.mint,
89            self.owner.unwrap_or(&payer_pk),
90        )?;
91
92        let block_hash = self.svm.latest_blockhash();
93        let tx = Transaction::new_signed_with_payer(
94            &[ix1, ix2],
95            Some(&payer_pk),
96            &[self.payer, &account_kp],
97            block_hash,
98        );
99        self.svm.send_transaction(tx)?;
100
101        Ok(account_pk)
102    }
103}
hpsvm_token/create_account.rs

hpsvm_token/
create_account.rs
