Enum Error 

pub enum Error {
    Payload(Error),
    Container(Error),
    ContainerChanged {
        recorded: String,
        found: String,
    },
    Repack(Error),
    WouldNotBeConformant(String),
    Swap(Error),
}

Why an edit did not reach the container.

Variants

Payload(Error)

The payload could not be read out of the session directory.

Container(Error)

The container could not be read, or is no longer where the session recorded it. Concept 6.4: a container may move or go while a session runs, and this is not a failure of the edit.

ContainerChanged

The file at the recorded path is not the container this session was opened against — its payload goes by another name. Writing back would rename the payload of a container somebody else may be holding, so it refuses. Concept 6.3 asks the same question on the recovery side; this is the guard on the acting side, and it belongs here because it is a safety property of the write-back rather than an optimisation in whatever called it.

Fields

recorded: String

What the session recorded.

found: String

What the file at that path says now.

Repack(Error)

The repack itself failed. Nothing was replaced.

WouldNotBeConformant(String)

What the repack produced was not a conformant container, so it was not allowed to replace one. Nothing was changed.

Swap(Error)

The replacement could not be put in place. Includes the case concept 7 cares most about: the container carries a mark that could not be carried onto its replacement, which stops the commit rather than silently laundering it.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.