Enum AppError 

pub enum AppError {
    Io(IoError),
    Format(FormatError),
    Model(ModelError),
    Codec(CodecError),
    Integrity(IntegrityError),
    ResourceLimit(ResourceLimitError),
    Backend(BackendError),
    Comparison(ComparisonError),
    ExternalOracle(OracleError),
    InternalInvariant(InternalInvariantError),
}

Top-level error type for all CLI operations.

Each variant carries structured context relevant to the error kind. The Display implementation produces user-facing messages. The AppError::kind() method returns a stable string identifier for JSON serialization.

Variants

Io(IoError)

I/O operation failed.

Format(FormatError)

Container or stream format violation.

Model(ModelError)

Model construction or validation error.

Codec(CodecError)

Codec operation failed.

Integrity(IntegrityError)

SHA-256 integrity check failure.

ResourceLimit(ResourceLimitError)

Resource limit exceeded.

Backend(BackendError)

Requested backend not available.

Comparison(ComparisonError)

Comparison mismatch.

ExternalOracle(OracleError)

External oracle failure.

InternalInvariant(InternalInvariantError)

Internal invariant violation (bug).

Implementations

impl AppError

pub fn kind(&self) -> &'static str

Stable string identifier for JSON serialization.

pub fn exit_code(&self) -> i32

Return the stable exit code for this error.

pub fn to_json_value(&self) -> Value

Convert to a JSON-compatible value.

Trait Implementations

impl Clone for AppError

fn clone(&self) -> AppError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AppError

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

Formats the value using the given formatter.

impl Display for AppError

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

Formats the value using the given formatter.

impl Error for AppError

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<DecodeError> for AppError

fn from(_e: DecodeError) -> Self

Converts to this type from the input type.

impl From<EncodeError> for AppError

fn from(_e: EncodeError) -> Self

Converts to this type from the input type.

impl From<Error> for AppError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<ModelError> for AppError

fn from(e: ModelError) -> Self

Converts to this type from the input type.

impl From<String> for AppError

fn from(s: String) -> Self

Converts to this type from the input type.