Enum ValueCodecExecutionError 

pub enum ValueCodecExecutionError {
    TypeMismatch {
        expected_type: &'static str,
        actual_type: TypeId,
    },
    EncodeFailed {
        codec_type: &'static str,
        source: Box<dyn Error + Send + Sync + 'static>,
    },
    DecodeFailed {
        codec_type: &'static str,
        source: Box<dyn Error + Send + Sync + 'static>,
    },
}

Failure produced by a type-erased value-codec invocation.

Registry lookups erase the concrete encoder and decoder types, so the mismatch and failure they report are carried here as diagnostics instead of a generic type parameter. Source errors are retained as Send + Sync trait objects so this error can cross thread boundaries without losing the concrete source type.

Examples

use std::any::TypeId;

use qubit_codec::ValueCodecExecutionError;

let error = ValueCodecExecutionError::TypeMismatch {
    expected_type: "u32",
    actual_type: TypeId::of::<String>(),
};
assert_eq!(
    error.to_string(),
    format!("value codec for u32 received incompatible type {:?}", TypeId::of::<String>())
);

Variants

TypeMismatch

The supplied value has the wrong Rust type.

Fields

expected_type: &'static str

Expected diagnostic Rust type name.

actual_type: TypeId

Actual process-local Rust type identity.

EncodeFailed

The typed encoder failed.

Fields

codec_type: &'static str

Diagnostic Rust codec type name.

source: Box<dyn Error + Send + Sync + 'static>

Typed encoder source error.

DecodeFailed

The typed decoder failed.

Fields

codec_type: &'static str

Diagnostic Rust codec type name.

source: Box<dyn Error + Send + Sync + 'static>

Typed decoder source error.

Trait Implementations

impl Debug for ValueCodecExecutionError

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

Formats the value using the given formatter.

impl Display for ValueCodecExecutionError

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

Formats the value using the given formatter.

impl Error for ValueCodecExecutionError

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.