Trait SysvarSerialize 

pub trait SysvarSerialize:
    Sysvar
    + SysvarId
    + Serialize
    + DeserializeOwned {
    // Provided methods
    fn size_of() -> usize { ... }
    fn from_account_info(
        account_info: &AccountInfo<'_>,
    ) -> Result<Self, ProgramError> { ... }
    fn to_account_info(&self, account_info: &mut AccountInfo<'_>) -> Option<()> { ... }
}

A type that holds sysvar data.

Provided Methods

fn size_of() -> usize

The size in bytes of the sysvar as serialized account data.

fn from_account_info( account_info: &AccountInfo<'_>, ) -> Result<Self, ProgramError>

Deserializes the sysvar from its AccountInfo.

Errors

If account_info does not have the same ID as the sysvar this function returns ProgramError::InvalidArgument.

fn to_account_info(&self, account_info: &mut AccountInfo<'_>) -> Option<()>

Serializes the sysvar to AccountInfo.

Errors

Returns None if serialization failed.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl SysvarSerialize for EpochSchedule

Available on crate feature bincode only.

impl SysvarSerialize for SlotHashes

Available on crate feature bincode only.

impl SysvarSerialize for SlotHistory

Available on crate feature bincode only.

impl SysvarSerialize for Clock

Available on crate feature bincode only.

impl SysvarSerialize for EpochRewards

Available on crate feature bincode only.

impl SysvarSerialize for Fees

Available on crate feature bincode only.

impl SysvarSerialize for LastRestartSlot

Available on crate feature bincode only.

impl SysvarSerialize for RecentBlockhashes

Available on crate feature bincode only.

impl SysvarSerialize for Rent

Available on crate feature bincode only.

impl SysvarSerialize for Rewards

Available on crate feature bincode only.