Struct ApproveChecked 

pub struct ApproveChecked<'a> {
    pub source: &'a AccountView<'a>,
    pub mint: &'a AccountView<'a>,
    pub delegate: &'a AccountView<'a>,
    pub authority: &'a AccountView<'a>,
    pub amount: u64,
    pub decimals: u8,
}

Builder for SPL Token ApproveChecked (instruction index 13).

Mint + decimals-verified approval. Same safety profile as the other *Checked variants.

Fields

source: &'a AccountView<'a>

mint: &'a AccountView<'a>

delegate: &'a AccountView<'a>

authority: &'a AccountView<'a>

amount: u64

decimals: u8

Implementations

impl ApproveChecked<'_>

pub fn invoke(&self) -> ProgramResult

pub fn invoke_strict(&self) -> ProgramResult

Strict invoke: signer pre-check plus source-account ownership verification. Ensures the authority granting the approval is actually allowed to do so. See TransferChecked::invoke_strict for the full rationale.

pub fn invoke_signed(&self, signers: &[Signer<'_, '_>]) -> ProgramResult

pub fn invoke_multisig( &self, multisig_signers: &[&AccountView<'_>], ) -> ProgramResult

pub fn invoke_signed_multisig( &self, multisig_signers: &[&AccountView<'_>], signers: &[Signer<'_, '_>], ) -> ProgramResult

pub fn invoke_signed_strict(&self, signers: &[Signer<'_, '_>]) -> ProgramResult

Strict PDA-signed invoke. Pre-check the source-account owner before the CPI.

impl ApproveChecked<'_>

pub fn invoke_on( &self, program: TokenProgram, multisig_signers: &[&AccountView<'_>], signers: &[Signer<'_, '_>], ) -> ProgramResult

Send this instruction to an explicit token program.

multisig_signers is empty for a single-key authority; when signers is empty the authority (or every multisig signer) must have signed the transaction directly.

pub fn invoke_for_owner( &self, multisig_signers: &[&AccountView<'_>], signers: &[Signer<'_, '_>], ) -> ProgramResult

Send this instruction to whichever token program owns source (one 32-byte compare). Any other owner is refused with IncorrectProgramId before the CPI.

Trait Implementations

impl<'a, 'x: 'a> TokenInstruction<'a> for ApproveChecked<'x>

fn emit( &self, multisig_signers: &[&'a AccountView<'a>], sink: &mut impl TokenSink<'a>, ) -> ProgramResult