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Dealing with unchecked accounts in Solana
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pub fn is_discriminator_already_set<'info>(account: &UncheckedAccount<'info>) -> Result<bool> { | |
let data = account.try_borrow_data()?; | |
let mut disc_bytes = [0u8; 8]; | |
disc_bytes.copy_from_slice(&data[..8]); | |
let discriminator = u64::from_le_bytes(disc_bytes); | |
Ok(discriminator != 0) | |
} | |
pub fn try_deserialize_unchecked<'info, T: AccountDeserialize>( | |
account: &UncheckedAccount<'info>, | |
) -> Result<T> { | |
let account_data = account.try_borrow_data()?; | |
let mut account_data_slice: &[u8] = &account_data; | |
T::try_deserialize_unchecked(&mut account_data_slice) | |
} |
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