Struct anchor_lang::prelude::Sysvar
source · [−]pub struct Sysvar<'info, T: Sysvar> { /* private fields */ }
Expand description
Container for sysvars.
Implementations
sourceimpl<'info, T: Sysvar> Sysvar<'info, T>
impl<'info, T: Sysvar> Sysvar<'info, T>
pub fn from_account_info(
acc_info: &AccountInfo<'info>
) -> Result<Sysvar<'info, T>, ProgramError>
Trait Implementations
sourceimpl<'info, T: Sysvar> Accounts<'info> for Sysvar<'info, T>
impl<'info, T: Sysvar> Accounts<'info> for Sysvar<'info, T>
sourcefn try_accounts(
_program_id: &Pubkey,
accounts: &mut &[AccountInfo<'info>],
_ix_data: &[u8]
) -> Result<Self, ProgramError>
fn try_accounts(
_program_id: &Pubkey,
accounts: &mut &[AccountInfo<'info>],
_ix_data: &[u8]
) -> Result<Self, 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. Read more
sourceimpl<'info, T: Sysvar> AccountsExit<'info> for Sysvar<'info, T>
impl<'info, T: Sysvar> AccountsExit<'info> for Sysvar<'info, T>
sourcefn exit(&self, _program_id: &Pubkey) -> ProgramResult
fn exit(&self, _program_id: &Pubkey) -> ProgramResult
program_id
is the currently executing program.
sourceimpl<'info, T: Sysvar> ToAccountInfo<'info> for Sysvar<'info, T>
impl<'info, T: Sysvar> ToAccountInfo<'info> for Sysvar<'info, T>
fn to_account_info(&self) -> AccountInfo<'info>
sourceimpl<'info, T: Sysvar> ToAccountInfos<'info> for Sysvar<'info, T>
impl<'info, T: Sysvar> ToAccountInfos<'info> for Sysvar<'info, T>
fn to_account_infos(&self) -> Vec<AccountInfo<'info>>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
A: Allocator,
sourceimpl<'info, T: Sysvar> ToAccountMetas for Sysvar<'info, T>
impl<'info, T: Sysvar> ToAccountMetas for Sysvar<'info, T>
sourcefn to_account_metas(&self, _is_signer: Option<bool>) -> Vec<AccountMeta>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
fn to_account_metas(&self, _is_signer: Option<bool>) -> Vec<AccountMeta>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
A: Allocator,
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. Read more
Auto Trait Implementations
impl<'info, T> !RefUnwindSafe for Sysvar<'info, T>
impl<'info, T> !Send for Sysvar<'info, T>
impl<'info, T> !Sync for Sysvar<'info, T>
impl<'info, T> Unpin for Sysvar<'info, T> where
T: Unpin,
impl<'info, T> !UnwindSafe for Sysvar<'info, T>
Blanket Implementations
impl<T> AbiExample for T
impl<T> AbiExample for T
default fn example() -> T
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Pointable for T
impl<T> Pointable for T
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more