Struct HeldVersion 

pub struct HeldVersion { /* private fields */ }

One task’s write held to the version its caller read.

Implementations

impl HeldVersion

pub fn new(id: NativeId, version: String) -> Self

A write of the task id held to version.

pub async fn scope<F: Future>(held: Arc<Self>, call: F) -> F::Output

Run call with this hold answering every HeldVersion::expected made inside it.

pub fn expected(id: &NativeId) -> Option<String>

The version the write in progress holds the task id to — None when no write in progress is held, or the one that is holds another task.

pub fn moved(id: &NativeId, found: Option<String>) -> SourceError

Refuse the write in progress of the task id, which the source found at found rather than at the version it is held to: the refusal the source fails its call with, writing nothing, recorded so the engine reports it as the version having moved.

pub fn found(&self) -> Option<String>

The version the source found the task at when it refused the write, if it did.

pub const fn id(&self) -> &NativeId

The task this hold is for.

pub fn version(&self) -> &str

The version the write is held to.

Trait Implementations

impl Debug for HeldVersion

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

Formats the value using the given formatter.