Enum Error 

pub enum Error {
    OutOfBounds {
        pos: usize,
        len: usize,
    },
    UnknownTapeType {
        tag: u8,
        pos: usize,
    },
    UnexpectedTapeType {
        found: u8,
        pos: usize,
    },
    StringOutOfBounds {
        offset: usize,
        len: usize,
    },
    MissingValueWord {
        pos: usize,
    },
    InvalidUtf8 {
        source: Utf8Error,
        pos: usize,
    },
}

The error type returned by Tape operations.

Each variant names the concrete failure and carries the positions and lengths relevant to it, so callers can inspect what went wrong and where, rather than parsing a formatted message.

Variants

OutOfBounds

The tape cursor advanced past the end of the tape.

Fields

pos: usize

len: usize

UnknownTapeType

The tape word’s tag byte is not a recognised TapeType.

Fields

tag: u8

pos: usize

UnexpectedTapeType

The tape word’s type is recognised but not valid at this position (e.g. a closing } where a value is expected, or a non-string node where an object key is expected).

Fields

found: u8

pos: usize

StringOutOfBounds

A string node’s offset or length runs past the end of string_buf.

Fields

offset: usize

len: usize

MissingValueWord

A number node is missing its second (value) tape word.

Fields

pos: usize

InvalidUtf8

The string bytes at the node’s offset are not valid UTF-8.

Fields

source: Utf8Error

pos: usize

Trait Implementations

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, __snafu_display_formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

where Self: Debug + Display,

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 ErrorCompat for Error

fn backtrace(&self) -> Option<&Backtrace>

Returns a Backtrace that may be printed.

fn iter_chain(&self) -> ChainCompat<'_, '_>

where Self: AsErrorSource,

Returns an iterator for traversing the chain of errors, starting with the current error and continuing with recursive calls to Error::source.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

where Error: Into<Error>,

fn from(error: Error) -> Self

Converts to this type from the input type.