Enum SemanticsCheck 

pub enum SemanticsCheck {
    Verified,
    VerifiedPrevious([u8; 32]),
    Mismatch,
}

What a stored arithmetic identifier says about the data stamped with it.

Returned by check_semantics. The previous case is its own variant so a reader never treats “computed by an earlier release with the same bits” as silently equal to “computed by this release”.

Variants

Verified

The identifier is SEMANTICS_ID.

VerifiedPrevious([u8; 32])

The identifier is one of PREVIOUS_SEMANTICS_IDS: an earlier release, same bits on every function it covered.

Mismatch

Unknown: the data was computed with arithmetic this release does not promise to reproduce.

Implementations

impl SemanticsCheck

pub const fn is_reproducible(self) -> bool

Accepting: Verified or VerifiedPrevious.

For readers of stored data (residuals, law identifiers, snapshots): the stored values are reproduced exactly by this release.

pub const fn is_current(self) -> bool

Strict: Verified only.

For comparing identifiers as keys (a cache keyed on the identifier, a peer that must run exactly this release, a writer checking what it is about to stamp), where an earlier identifier is a different key even though the bits agree.

Trait Implementations

impl Clone for SemanticsCheck

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SemanticsCheck

impl Debug for SemanticsCheck

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

Formats the value using the given formatter.

impl Eq for SemanticsCheck

impl Hash for SemanticsCheck

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SemanticsCheck

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SemanticsCheck