Enum ApChange

pub enum ApChange {
    Unknown,
    Known(usize),
    FromMetadata,
    AtLocalsFinalization(usize),
    FunctionCall(FunctionId),
    FinalizeLocals,
    EnableApTracking,
    DisableApTracking,
}

Describes the effect on the ap register in a given libfunc branch.

Variants

Unknown

The libfunc changes ap in an unknown way.

Known(usize)

The libfunc changes ap by a known size.

FromMetadata

The libfunc changes ap by a known size, provided in the metadata. Currently this only includes branch_align libfunc.

AtLocalsFinalization(usize)

The libfunc changes ap by a known size at locals finalization stage.

FunctionCall(FunctionId)

The libfunc is a function call - it changes according to the given function and call cost.

FinalizeLocals

The libfunc allocates locals, the ap change depends on the environment.

EnableApTracking

The libfunc is the ap tracking enabler.

DisableApTracking

The libfunc is the ap tracking disabler.

Trait Implementations

impl Clone for ApChange

fn clone(&self) -> ApChange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ApChange

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

Formats the value using the given formatter.

impl PartialEq for ApChange

fn eq(&self, other: &ApChange) -> 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 Eq for ApChange

impl StructuralPartialEq for ApChange