Enum CedarPersistenceError 

#[non_exhaustive]
pub enum CedarPersistenceError {
    Io(Error),
    Truncated,
    InvalidMagic,
    UnsupportedVersion {
        major: u16,
        minor: u16,
    },
    UnsupportedByteOrder {
        byte_order: u8,
    },
    LayoutMismatch {
        expected: u8,
        found: u8,
    },
    InvalidHeader {
        field: &'static str,
        value: u64,
    },
    AllocationLimitExceeded {
        requested: usize,
        limit: usize,
    },
    AllocationFailed {
        requested: usize,
    },
    CorruptData {
        section: &'static str,
        index: usize,
        reason: &'static str,
    },
    TrailingData,
}

Errors returned while saving or loading cedarwood’s versioned binary format.

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.

Io(Error)

The underlying stream or filesystem operation failed.

Truncated

The input ended before the complete declared representation was read.

InvalidMagic

The eight-byte cedarwood format marker did not match.

UnsupportedVersion

The file uses a format version this reader does not understand.

Fields

major: u16

minor: u16

UnsupportedByteOrder

The file is not explicitly marked as little-endian.

Fields

byte_order: u8

LayoutMismatch

The file was produced for a different compile-time trie layout.

Fields

expected: u8

found: u8

InvalidHeader

Reserved header flags were set or a header field was otherwise invalid.

Fields

field: &'static str

value: u64

AllocationLimitExceeded

Loading and structural validation would reserve more memory than the caller allows.

Fields

requested: usize

limit: usize

AllocationFailed

The allocator could not reserve the validated amount of memory.

Fields

requested: usize

CorruptData

A structural invariant failed validation.

Fields

section: &'static str

index: usize

reason: &'static str

TrailingData

Bytes remained after the complete declared representation.

Trait Implementations

impl Debug for CedarPersistenceError

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

Formats the value using the given formatter.

impl Display for CedarPersistenceError

Available on crate feature std only.

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

Formats the value using the given formatter.

impl Error for CedarPersistenceError

Available on crate feature std only.

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 CedarPersistenceError

Available on crate feature std only.

fn from(error: Error) -> Self

Converts to this type from the input type.