Enum SegmentError 

pub enum SegmentError {
    Empty,
    ContainsSeparator(String),
    ContainsWhitespace(String),
    WildcardToken(String),
    IllegalChar {
        segment: String,
        ch: char,
        index: usize,
    },
    TooLong {
        segment: String,
        len: usize,
    },
}

Why a candidate label is not a Segment.

Every arm names one rule from the module’s charset section, so a caller can report which rule the operator tripped rather than a generic “bad address”.

Variants

Empty

The label was the empty string.

ContainsSeparator(String)

The label contained ., which would silently re-shape the tree.

ContainsWhitespace(String)

The label contained whitespace — invisible differences must never produce two distinct names.

WildcardToken(String)

The label was exactly * or >. Those are Pattern syntax and can never be a literal label.

IllegalChar

The label held a character outside the accepted charset.

Fields

segment: String

The rejected label.

ch: char

The first offending character.

index: usize

Its byte offset within the label.

TooLong

The label was longer than SEGMENT_MAX_LEN.

Fields

segment: String

The rejected label.

len: usize

Its length in bytes.

Trait Implementations

impl Clone for SegmentError

fn clone(&self) -> SegmentError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SegmentError

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

Formats the value using the given formatter.

impl Display for SegmentError

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

Formats the value using the given formatter.

impl Eq for SegmentError

impl Error for SegmentError

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 SegmentError

fn eq(&self, other: &SegmentError) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SegmentError