Enum TypeChangeState 

pub enum TypeChangeState {
    New,
    Unchanged,
    Compatible,
    Incompatible,
    Undecidable,
}

How the candidate stands against the registered definition.

Variants

New

Nothing is registered under this identifier yet.

Unchanged

Byte-identical to what is registered.

Compatible

Valid(old) ⊆ Valid(new) proved from the schemas.

Incompatible

Proved not to hold.

Undecidable

Could be neither proved nor disproved (gts reports Unknown). ADR-0003 fails closed on this, so it is a refusal — but a distinct one, because the fix is a different one.

Implementations

impl TypeChangeState

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

The one spelling this variant has, in storage and on the wire.

Trait Implementations

impl Clone for TypeChangeState

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 TypeChangeState

impl Debug for TypeChangeState

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

Formats the value using the given formatter.

impl Display for TypeChangeState

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

Formats the value using the given formatter.

impl Eq for TypeChangeState

impl FromStr for TypeChangeState

type Err = UnknownVariant

The associated error which can be returned from parsing.

fn from_str(value: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for TypeChangeState

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TypeChangeState

impl TryFrom<&str> for TypeChangeState

type Error = UnknownVariant

The type returned in the event of a conversion error.

fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.