Enum AprFormatError 

#[non_exhaustive]
pub enum AprFormatError {
    ChecksumMismatch {
        expected: u32,
        actual: u32,
    },
    FormatError {
        message: String,
    },
    Serialization(String),
    ValidationError {
        message: String,
    },
    Io(Error),
    InvalidOffset,
    HeaderTooLarge,
    UnsupportedVersion {
        found: (u8, u8),
        supported: (u8, u8),
    },
}

Errors produced while reading or writing the .apr container format.

#[non_exhaustive] so new variants can be added without a breaking change.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ChecksumMismatch

CRC32 integrity check failed: the stored trailer does not match the recomputed checksum of the file body.

Fields

expected: u32

Checksum stored in the file trailer.

actual: u32

Checksum recomputed over the file body.

FormatError

Invalid or corrupt container structure (bad magic, truncated header, unknown model type, out-of-range sizes, …).

Fields

message: String

Human-readable description of the format violation.

Serialization(String)

Serialization / deserialization failure (bincode, msgpack, JSON).

ValidationError

Poka-yoke / Jidoka validation failure (e.g. refusing to save a model whose quality gate scored zero).

Fields

message: String

Description of the validation failure.

Io(Error)

Underlying I/O failure (file open / read / write).

InvalidOffset

A computed offset fell outside the file/data boundary.

HeaderTooLarge

The declared header / metadata section exceeds the permitted maximum (compression-bomb / overflow protection).

UnsupportedVersion

The on-disk format version is newer than this reader supports.

Fields

found: (u8, u8)

Version found in the file header.

supported: (u8, u8)

Maximum version this reader supports.

Trait Implementations

impl Debug for AprFormatError

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

Formats the value using the given formatter.

impl Display for AprFormatError

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

Formats the value using the given formatter.

impl Error for AprFormatError

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<Error> for AprFormatError

fn from(source: Error) -> Self

Converts to this type from the input type.