Enum FieldIntent 

#[repr(u8)]
pub enum FieldIntent {
    Balance = 0,
    Authority = 1,
    Timestamp = 2,
    Counter = 3,
    Index = 4,
    BasisPoints = 5,
    Flag = 6,
    Address = 7,
    Hash = 8,
    PDASeed = 9,
    Version = 10,
    Bump = 11,
    Nonce = 12,
    Supply = 13,
    Limit = 14,
    Threshold = 15,
    Owner = 16,
    Delegate = 17,
    Status = 18,
    Custom = 255,
}

Semantic intent of a layout field.

Enables auto-generated UI, receipt explanations, invariant validation, and client SDKs to understand what each field means – not just its type.

Variants

Balance = 0

Token/SOL balance (lamports or token amount).

Authority = 1

Public key that controls this account.

Timestamp = 2

Unix timestamp (seconds since epoch).

Counter = 3

Monotonic counter (nonce, sequence number).

Index = 4

Array/collection index or offset.

BasisPoints = 5

Basis-point value (e.g. fee rate, slippage tolerance).

Flag = 6

Boolean flag stored as a byte.

Address = 7

Public key reference to another account.

Hash = 8

Hash or fingerprint (layout_id, merkle root, etc.).

PDASeed = 9

PDA seed component stored on-chain.

Version = 10

Layout or schema version number.

Bump = 11

PDA bump seed.

Nonce = 12

Cryptographic nonce (distinct from monotonic counter).

Supply = 13

Token supply or mint total.

Limit = 14

Rate limit, cap, or ceiling value.

Threshold = 15

Multisig or governance threshold.

Owner = 16

Owner identity (distinct from authority – may be non-signer).

Delegate = 17

Delegated authority (can act on behalf of owner).

Status = 18

State machine status / lifecycle stage.

Custom = 255

Application-specific field with no standard semantic.

Implementations

impl FieldIntent

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

Human-readable name for display.

pub fn is_monetary(self) -> bool

Whether this field represents a monetary amount that should be tracked for conservation invariants.

pub fn is_identity(self) -> bool

Whether this field is an identity reference (authority, owner, delegate, or address).

pub fn is_authority_sensitive(self) -> bool

Whether this field is authority-sensitive (mutations require signer verification).

pub fn is_init_only(self) -> bool

Whether this field is immutable after initialization (bump, PDA seed, version seeds).

pub fn is_governance(self) -> bool

Whether this field represents a governance or access-control parameter.

Trait Implementations

impl Clone for FieldIntent

fn clone(&self) -> FieldIntent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldIntent

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

Formats the value using the given formatter.

impl Display for FieldIntent

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

Formats the value using the given formatter.

impl PartialEq for FieldIntent

fn eq(&self, other: &FieldIntent) -> 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 Copy for FieldIntent

impl Eq for FieldIntent

impl StructuralPartialEq for FieldIntent