Struct ValidationGroup 

pub struct ValidationGroup<const N: usize> { /* private fields */ }

A named group of validation rules.

Groups bundle related rules under a label for reuse across instructions. Example: a “token_transfer_preconditions” group that checks signer, writable, owner, and balance across the relevant accounts.

let mut group = ValidationGroup::<4>::new("transfer_preconditions");
group.add(require_signer_at(0))?;
group.add(require_writable_at(1))?;
group.add(require_owned_at(1))?;
group.run(&ctx)?;

Implementations

impl<const N: usize> ValidationGroup<N>

pub const fn new(name: &'static str) -> Self

Create a new named validation group.

pub const fn name(&self) -> &'static str

Group name (for diagnostics/logging).

pub fn add(&mut self, rule: ValidateFn) -> Result<(), ProgramError>

Add a rule to the group.

pub fn len(&self) -> usize

Number of rules in the group.

pub fn is_empty(&self) -> bool

Whether the group has no rules.

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

Run all rules in the group. Fail-fast.

Trait Implementations

impl<const M: usize> Validatable for ValidationGroup<M>

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

Run validation against the given context.