Struct switchboard_aggregator::Sysvar

pub struct Sysvar<'info, T> where
    T: Sysvar,  { /* fields omitted */ }

Container for sysvars.

Implementations

impl<'info, T> Sysvar<'info, T> where
    T: Sysvar, 

pub fn from_account_info(
    acc_info: &AccountInfo<'info>
) -> Result<Sysvar<'info, T>, ProgramError>

Trait Implementations

impl<'info, T> Accounts<'info> for Sysvar<'info, T> where
    T: Sysvar, 

pub fn try_accounts(
    _program_id: &Pubkey,
    accounts: &mut &[AccountInfo<'info>],
    _ix_data: &[u8]
) -> Result<Sysvar<'info, T>, ProgramError>

Returns the validated accounts struct. What constitutes “valid” is program dependent. However, users of these types should never have to worry about account substitution attacks. For example, if a program expects a Mint account from the SPL token program in a particular field, then it should be impossible for this method to return Ok if any other account type is given–from the SPL token program or elsewhere.

impl<'info, T> AccountsExit<'info> for Sysvar<'info, T> where
    T: Sysvar, 

pub fn exit(&self, _program_id: &Pubkey) -> Result<(), ProgramError>

program_id is the currently executing program.

impl<'info, T> AsRef<AccountInfo<'info>> for Sysvar<'info, T> where
    T: Sysvar, 

pub fn as_ref(&self) -> &AccountInfo<'info>

Performs the conversion.

impl<'info, T> Clone for Sysvar<'info, T> where
    T: Sysvar, 

pub fn clone(&self) -> Sysvar<'info, T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, T> Deref for Sysvar<'a, T> where
    T: Sysvar, 

type Target = T

The resulting type after dereferencing.

pub fn deref(&self) -> &<Sysvar<'a, T> as Deref>::Target

Dereferences the value.

impl<'a, T> DerefMut for Sysvar<'a, T> where
    T: Sysvar, 

pub fn deref_mut(&mut self) -> &mut <Sysvar<'a, T> as Deref>::Target

Mutably dereferences the value.

impl<'info, T> Key for Sysvar<'info, T> where
    T: Sysvar, 

pub fn key(&self) -> Pubkey

impl<'info, T> ToAccountInfo<'info> for Sysvar<'info, T> where
    T: Sysvar, 

pub fn to_account_info(&self) -> AccountInfo<'info>

impl<'info, T> ToAccountInfos<'info> for Sysvar<'info, T> where
    T: Sysvar, 

pub fn to_account_infos(&self) -> Vec<AccountInfo<'info>, Global>

impl<'info, T> ToAccountMetas for Sysvar<'info, T> where
    T: Sysvar, 

pub fn to_account_metas(
    &self,
    _is_signer: Option<bool>
) -> Vec<AccountMeta, Global>

is_signer is given as an optional override for the signer meta field. This covers the edge case when a program-derived-address needs to relay a transaction from a client to another program but sign the transaction before the relay. The client cannot mark the field as a signer, and so we have to override the is_signer meta field given by the client.