Enum ExtensionError 

pub enum ExtensionError {
    NotFound {
        name: String,
    },
    MissingArgument {
        name: String,
    },
    NamedArgumentConversion {
        name: String,
        source: Box<ExtensionError>,
    },
    ArgumentConversion {
        expected: ExtensionValueKind,
        source: Box<ExtensionError>,
    },
    InvalidArgumentType {
        expected: ExtensionValueKind,
        actual: ExtensionValueKind,
    },
    InvalidArgument(String),
    TypeUrlMismatch {
        expected: String,
        actual: String,
    },
    DecodeFailed(DecodeError),
    EncodeFailed(EncodeError),
    MissingDetail,
    Custom(String),
}

Errors during extension parsing, formatting, and argument extraction (runtime)

Variants

NotFound

Extension not found in registry during lookup

Fields

name: String

MissingArgument

A required named argument was not present.

Fields

name: String

NamedArgumentConversion

A named argument failed conversion to the requested type.

Fields

name: String

source: Box<ExtensionError>

ArgumentConversion

An argument containing an earlier error could not be converted.

Fields

expected: ExtensionValueKind

source: Box<ExtensionError>

InvalidArgumentType

Invalid argument type found while extracting an extension argument.

Fields

expected: ExtensionValueKind

actual: ExtensionValueKind

InvalidArgument(String)

Invalid argument value with a custom diagnostic.

Prefer structured variants for common mechanical validation failures. Use this for domain-specific validation from Explainable implementations.

TypeUrlMismatch

Type URL mismatch during protobuf Any decode

Fields

expected: String

actual: String

DecodeFailed(DecodeError)

Protobuf message decode failure

EncodeFailed(EncodeError)

Protobuf message encode failure

MissingDetail

Extension detail field is missing from the relation

Custom(String)

Error from a custom AnyConvertible implementation

Trait Implementations

impl Clone for ExtensionError

fn clone(&self) -> ExtensionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtensionError

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

Formats the value using the given formatter.

impl Display for ExtensionError

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

Formats the value using the given formatter.

impl Error for ExtensionError

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<ExtensionError> for ExtensionValue

fn from(error: ExtensionError) -> Self

Converts to this type from the input type.

impl From<ExtensionError> for FormatError

fn from(source: ExtensionError) -> Self

Converts to this type from the input type.