Struct kaptn_lang::prelude::ExtraAccountMeta

#[repr(C)]
pub struct ExtraAccountMeta {
    pub discriminator: u8,
    pub address_config: [u8; 32],
    pub is_signer: PodBool,
    pub is_writable: PodBool,
}

Pod type for defining a required account in a validation account.

This can be any of the following:

• A standard AccountMeta
• A PDA (with seed configurations)
• A pubkey stored in some data (account or instruction data)

Can be used in TLV-encoded data.

Fields

discriminator: u8

Discriminator to tell whether this represents a standard AccountMeta, PDA, or pubkey data.

address_config: [u8; 32]

This address_config field can either be the pubkey of the account, the seeds used to derive the pubkey from provided inputs (PDA), or the data used to derive the pubkey (account or instruction data).

is_signer: PodBool

Whether the account should sign

is_writable: PodBool

Whether the account should be writable

Implementations

impl ExtraAccountMeta

pub fn new_with_pubkey( pubkey: &Pubkey, is_signer: bool, is_writable: bool, ) -> Result<ExtraAccountMeta, ProgramError>

Create a ExtraAccountMeta from a public key, thus representing a standard AccountMeta

pub fn new_with_seeds( seeds: &[Seed], is_signer: bool, is_writable: bool, ) -> Result<ExtraAccountMeta, ProgramError>

Create a ExtraAccountMeta from a list of seed configurations, thus representing a PDA

pub fn new_with_pubkey_data( key_data: &PubkeyData, is_signer: bool, is_writable: bool, ) -> Result<ExtraAccountMeta, ProgramError>

Create a ExtraAccountMeta from a pubkey data configuration.

pub fn new_external_pda_with_seeds( program_index: u8, seeds: &[Seed], is_signer: bool, is_writable: bool, ) -> Result<ExtraAccountMeta, ProgramError>

Create a ExtraAccountMeta from a list of seed configurations, representing a PDA for an external program

This PDA belongs to a program elsewhere in the account list, rather than the executing program. For a PDA on the executing program, use ExtraAccountMeta::new_with_seeds.

pub fn resolve<'a, F>( &self, instruction_data: &[u8], program_id: &Pubkey, get_account_key_data_fn: F, ) -> Result<AccountMeta, ProgramError>

where F: Fn(usize) -> Option<(&'a Pubkey, Option<&'a [u8]>)>,

Resolve an ExtraAccountMeta into an AccountMeta, potentially resolving a program-derived address (PDA) if necessary

Trait Implementations

impl Clone for ExtraAccountMeta

fn clone(&self) -> ExtraAccountMeta

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtraAccountMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for ExtraAccountMeta

fn default() -> ExtraAccountMeta

Returns the “default value” for a type.

impl From<&AccountInfo<'_>> for ExtraAccountMeta

fn from(account_info: &AccountInfo<'_>) -> ExtraAccountMeta

Converts to this type from the input type.

impl From<&AccountMeta> for ExtraAccountMeta

fn from(meta: &AccountMeta) -> ExtraAccountMeta

Converts to this type from the input type.

impl From<AccountInfo<'_>> for ExtraAccountMeta

fn from(account_info: AccountInfo<'_>) -> ExtraAccountMeta

Converts to this type from the input type.

impl From<AccountMeta> for ExtraAccountMeta

fn from(meta: AccountMeta) -> ExtraAccountMeta

Converts to this type from the input type.

impl PartialEq for ExtraAccountMeta

fn eq(&self, other: &ExtraAccountMeta) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Zeroable for ExtraAccountMeta

fn zeroed() -> Self

Calls zeroed.

impl Copy for ExtraAccountMeta

impl Pod for ExtraAccountMeta

impl StructuralPartialEq for ExtraAccountMeta