Enum TextLexicalCause 

pub enum TextLexicalCause {
    BlockCommentNotTerminated,
    InvalidIdentifier,
    UnknownPrefix,
    UnknownLifetimePrefix,
    GuardedStringPrefix,
    MalformedLiteral,
    LifetimeStartsWithNumber,
    Frontmatter,
    UnknownToken,
}

Why the low-level lexer could not normalize one spelling.

Variants

BlockCommentNotTerminated

A block comment was not terminated.

InvalidIdentifier

An identifier contains a character the compiler lexer rejects.

UnknownPrefix

A prefix is reserved or not meaningful without an edition-aware parser.

UnknownLifetimePrefix

A lifetime prefix is reserved or not meaningful without an edition-aware parser.

GuardedStringPrefix

A guarded-string prefix requires parser context this boundary does not own.

MalformedLiteral

A literal carries a malformed low-level spelling.

LifetimeStartsWithNumber

A lifetime begins with a number.

Frontmatter

Frontmatter is not Rust token input at this boundary.

UnknownToken

The lexer reported a character with no lawful Rust token kind.

Implementations

impl TextLexicalCause

pub const ALL: &'static [Self]

The complete roster, in declaration order.

pub const fn name(self) -> &'static str

This row’s declared name.

Trait Implementations

impl Clone for TextLexicalCause

fn clone(&self) -> TextLexicalCause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TextLexicalCause

impl Debug for TextLexicalCause

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

Formats the value using the given formatter.

impl Display for TextLexicalCause

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

Formats the value using the given formatter.

impl Eq for TextLexicalCause

impl Error for TextLexicalCause

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 Hash for TextLexicalCause

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TextLexicalCause

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TextLexicalCause