Enum Error 

pub enum Error {
    TruncatedInput {
        position: usize,
    },
    InvalidOpcode {
        position: usize,
        opcode: u8,
    },
    InvalidMatchDistance {
        distance: usize,
        available: usize,
    },
    OutputTooSmall {
        written: usize,
        capacity: usize,
    },
    SizeMismatch {
        expected: usize,
        actual: usize,
    },
    TrailingData {
        remaining: usize,
    },
    UnsupportedBlockMagic {
        magic: u32,
    },
    InvalidDecmpfsMagic {
        magic: u32,
    },
    UnsupportedDecmpfsCompressionType {
        compression_type: u32,
    },
    MissingResourceFork,
    InvalidResourceFork {
        reason: &'static str,
    },
    SizeOverflow {
        value: usize,
        max: usize,
        what: &'static str,
    },
}

Errors produced while encoding or decoding raw LZVN streams and Apple wrappers such as bvxn and decmpfs.

Variants

TruncatedInput

The input ended before a full instruction or end marker was available.

Fields

position: usize

The byte offset where decoding needed more input.

InvalidOpcode

The decoder found an opcode that is reserved or undefined.

Fields

position: usize

The byte offset of the invalid opcode.

opcode: u8

The invalid opcode byte.

InvalidMatchDistance

A match referred to bytes that do not exist in the decoded history.

Fields

distance: usize

The decoded distance from the instruction.

available: usize

The number of bytes available for a back-reference.

OutputTooSmall

The output buffer cannot hold the decoded bytes.

Fields

written: usize

The number of bytes written before the buffer filled up.

capacity: usize

The total size of the destination buffer.

SizeMismatch

The decoded byte count does not match the caller’s expectation.

Fields

expected: usize

The caller-provided expected length.

actual: usize

The actual decoded length.

TrailingData

Data remains after a successful end-of-stream marker.

Fields

remaining: usize

The number of trailing bytes.

UnsupportedBlockMagic

The Apple block header is well-formed but not a bvxn block.

Fields

magic: u32

The 32-bit little-endian block magic.

InvalidDecmpfsMagic

The decmpfs xattr header is well-formed but does not have the expected magic value.

Fields

magic: u32

The 32-bit little-endian decmpfs magic.

UnsupportedDecmpfsCompressionType

The decmpfs wrapper uses a compression type this crate does not support.

Fields

compression_type: u32

The raw decmpfs compression type value.

MissingResourceFork

The decmpfs wrapper requires a resource fork but none was provided.

InvalidResourceFork

The decmpfs resource fork layout is malformed.

Fields

reason: &'static str

A short description of the structural issue.

SizeOverflow

A size does not fit inside the target container format.

Fields

value: usize

The size that could not be represented.

max: usize

The maximum representable size.

what: &'static str

A short label describing the overflowing field.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

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 PartialEq for Error

fn eq(&self, other: &Error) -> 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 Error