Struct MutationStamp 

pub struct MutationStamp {
    pub engine_version: String,
    pub schema: String,
}

Engine-owned version stamp of the last successful mutation on a mem — see MemConfig::mutation_stamp. Both values are recorded at mutation time: engine_version is the engine crate version the acting binary was built from, schema the resolved <name>@<version> the mutation validated against (the resolved schema, not merely the pin — mid-migration mems stamp the target they validated against).

Fields

engine_version: String

Full build version of the binary that performed the last mutation — memstead-base’s build_info::full_version(): the crate semver, plus +g<sha>[-dirty] build metadata when built inside a git checkout, so dev builds between releases stamp distinguishably. Older stamps carry the plain semver and compare against the full current value — firing the skew hint on the first post-upgrade boot is desired, no migration.

schema: String

Resolved schema <name>@<version> the last mutation validated against.

Trait Implementations

impl Clone for MutationStamp

fn clone(&self) -> MutationStamp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MutationStamp

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MutationStamp

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MutationStamp

impl PartialEq for MutationStamp

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MutationStamp

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MutationStamp