Enum MarshalError 

pub enum MarshalError {
    ArgCount {
        expected: usize,
        got: usize,
    },
    Body(String),
}

Typed error returned at the marshal boundary.

Replaces panics from the deleted into_value_word() boundary. The dispatcher converts MarshalError into a Result<TypedReturn, String> at the registry edge so legacy String-error paths keep working during the migration.

Variants

ArgCount

Arg count mismatch between the function’s registered arity and the slot slice handed in by the dispatcher.

Fields

expected: usize

got: usize

Body(String)

The body returned an Err(String) — surfaced verbatim.

Trait Implementations

impl Clone for MarshalError

fn clone(&self) -> MarshalError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MarshalError

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

Formats the value using the given formatter.

impl Display for MarshalError

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

Formats the value using the given formatter.

impl Error for MarshalError

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<MarshalError> for String

fn from(e: MarshalError) -> Self

Converts to this type from the input type.

impl PartialEq for MarshalError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MarshalError