Struct AccountConstraint 

pub struct AccountConstraint { /* private fields */ }

A builder for constructing validation constraints on a single account.

AccountConstraint::on(0)
    .signer()
    .writable()
    .owned_by_program()
    .validate(&ctx)?;

Implementations

impl AccountConstraint

pub const fn on(index: usize) -> Self

Start building constraints for an account at the given index.

pub const fn signer(self) -> Self

Require the account to be a signer.

pub const fn writable(self) -> Self

Require the account to be writable.

pub const fn owned(self) -> Self

Require the account to be owned by the program.

pub const fn executable(self) -> Self

Require the account to be executable.

pub fn validate(&self, ctx: &ValidationContext<'_>) -> ProgramResult

Validate all constraints against the context.