Struct ExtensionPolicy 

pub struct ExtensionPolicy<'a> {
    pub required: &'a [u16],
    pub forbidden: &'a [u16],
}

A no-alloc Token-2022 extension policy over a TLV region.

required entries must be present; forbidden entries must be absent. This is the common core beneath declarative account constraints and tiny on-chain probes that want to validate a Token-2022 shape without pulling in spl-token-2022 deserialization.

Fields

required: &'a [u16]

forbidden: &'a [u16]

Implementations

impl<'a> ExtensionPolicy<'a>

pub const fn new( required: &'a [u16], forbidden: &'a [u16], ) -> ExtensionPolicy<'a>

Trait Implementations

impl<'a> Clone for ExtensionPolicy<'a>

fn clone(&self) -> ExtensionPolicy<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ExtensionPolicy<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for ExtensionPolicy<'a>

fn eq(&self, other: &ExtensionPolicy<'a>) -> 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<'a> Copy for ExtensionPolicy<'a>

impl<'a> Eq for ExtensionPolicy<'a>

impl<'a> StructuralPartialEq for ExtensionPolicy<'a>