Enum ProtocolError 

pub enum ProtocolError {
    UnknownDocument(DocumentId),
    PositionOutOfBounds {
        position: Position,
        line_count: u32,
    },
    StaleVersion {
        client: u64,
        actual: u64,
    },
    InvalidRange(&'static str),
}

A request that is structurally well-formed but does not fit the document it addresses. Crate errors wrap it (lattice_core’s CoreError::Protocol) rather than redefine these cases.

Variants

UnknownDocument(DocumentId)

No document with this id exists (it was never opened, or was closed).

PositionOutOfBounds

A Position names a line past the end of the document, or a byte past the end of its line. lattice_core::Buffer raises it on edit and position conversion.

Fields

position: Position

The offending position.

line_count: u32

How many lines the document actually has.

StaleVersion

A write was computed against an older document version than the current one (optimistic concurrency).

Fields

client: u64

The version the caller based its request on.

actual: u64

The document’s current version.

InvalidRange(&'static str)

A Range is malformed — typically end before start. The payload is a fixed, human-readable reason.

Trait Implementations

impl Debug for ProtocolError

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

Formats the value using the given formatter.

impl Display for ProtocolError

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

Formats the value using the given formatter.

impl Error for ProtocolError

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.