Enum Error 

pub enum Error {
    BadVersion(String),
    UnsupportedMajor(u64),
    UnsupportedMinor(u64),
    EmptyPath(usize),
    EmptyPathSegment(usize),
    EmptyAttrName(usize),
    EmptyValueSet(usize, String),
    DuplicatePath(Vec<String>),
}

Why a snapshot is not well-formed, or a version cannot be parsed.

Variants

BadVersion(String)

protocol_version is not a parseable MAJOR.MINOR.PATCH.

UnsupportedMajor(u64)

The snapshot’s MAJOR differs from crate::SUPPORTED_PROTOCOL_MAJOR.

UnsupportedMinor(u64)

The snapshot’s MINOR differs from crate::SUPPORTED_PROTOCOL_MINOR. Only enforced while MAJOR is 0, where a MINOR bump may move the canonical form (SPEC §10).

EmptyPath(usize)

A node at the given index has an empty path.

EmptyPathSegment(usize)

A node at the given index has an empty segment in its path ([""]).

EmptyAttrName(usize)

A node at the given index has an empty attribute name ({"":[…]}).

EmptyValueSet(usize, String)

A node (index) has an attribute (name) that maps to an empty value set ({"a":[]}).

DuplicatePath(Vec<String>)

Two nodes share the same identity (path) within one snapshot.

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, f: &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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Error