Enum MemWriterError 

pub enum MemWriterError {
    Io(Error),
    HashMismatch {
        current: String,
    },
    Path(String),
}

Errors surfaced by MemWriter.

Variants

Io(Error)

HashMismatch

Commit-time CAS conflict: the adapter snapshotted parent commit X at write-time, but by commit-time the underlying store has advanced to current. Surfaced by adapters that perform commit-tip CAS (the git-tree adapter); mapped onto the engine’s HashMismatch envelope so MCP agents see a single HASH_MISMATCH code regardless of whether the conflict was detected at the entity-hash level or at the commit level.

Fields

current: String

New commit identifier observed when the CAS check failed. Opaque to base callers; the git-tree adapter populates it with a hex commit object id.

Path(String)

Path-related rejection that does not map onto the IO case — e.g. an empty relative path or a path that escapes the mem root.

Trait Implementations

impl Debug for MemWriterError

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

Formats the value using the given formatter.

impl Display for MemWriterError

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

Formats the value using the given formatter.

impl Error for MemWriterError

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.

impl From<Error> for MemWriterError

fn from(source: Error) -> MemWriterError

Converts to this type from the input type.