Enum MutationClass 

#[repr(u8)]
pub enum MutationClass {
    ReadOnly = 0,
    AppendOnly = 1,
    InPlace = 2,
    Resizing = 3,
    AuthoritySensitive = 4,
    Financial = 5,
    StateTransition = 6,
}

Classification of how a layout or segment behaves when mutated.

Enables Hopper to reason about mutation risk, receipt expectations, and policy requirements at the type level rather than guessing from bytes.

Variants

ReadOnly = 0

No writes allowed. Read-only overlay.

AppendOnly = 1

New entries appended; existing data never modified.

InPlace = 2

Existing fields modified in-place; no size change.

Resizing = 3

Account may be resized (realloc) during mutation.

AuthoritySensitive = 4

Mutation touches authority, owner, or delegate fields.

Financial = 5

Mutation affects balances, supply, or other financial fields.

StateTransition = 6

Mutation changes state machine status or lifecycle stage.

Implementations

impl MutationClass

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

Human-readable name.

pub const fn is_mutating(self) -> bool

Whether this class involves any writes.

pub const fn requires_snapshot(self) -> bool

Whether this class requires a state snapshot for receipt generation.

pub const fn requires_authority(self) -> bool

Whether this class typically needs authority verification.

Trait Implementations

impl Clone for MutationClass

fn clone(&self) -> MutationClass

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MutationClass

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

Formats the value using the given formatter.

impl Display for MutationClass

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

Formats the value using the given formatter.

impl PartialEq for MutationClass

fn eq(&self, other: &MutationClass) -> 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 MutationClass

impl Eq for MutationClass

impl StructuralPartialEq for MutationClass