Struct HelperRefusal 

pub struct HelperRefusal { /* private fields */ }

How one helper body was not read: which grammar was reading, what it established, and the token.

Shared by every helper grammar this home declares. The TYPE a refusal travels in is the grammar’s own, because a diagnostic’s family tag is a fact about the type and two helper readings of one declaration must never derive one related identity.

Implementations

impl HelperRefusal

pub const fn class(&self) -> RefusalClass

Which class of refusal the summary line opens with.

pub const fn classified(&self) -> Observed

How what was observed differs from the grammar that was expected.

pub fn first(&self) -> String

The established refusal, stated in full, naming the helper the author wrote.

pub fn canonical_bytes(&self) -> Vec<u8>

This refusal’s canonical bytes: which reading refused, the helper it was reading, and that reading’s own material.

The reading rides ahead of the material, so a malformed clause and a doubled role can never derive one related identity inside one family.

pub fn repairs(&self) -> Bounded<Repair, REPAIR_LIMIT>

The owner-declared repair that applies to the reading that refused.

impl HelperRefusal

pub const fn grammar_refused( grammar: Grammar, cause: CaptureCause, at: SpanHandle, ) -> Self

One refusal established by the grammar’s own reading, at the token the clause sits at.

pub const fn vocabulary_refused( grammar: Grammar, refusal: DeclarationError, at: SpanHandle, ) -> Self

One refusal the vocabulary established over a value the grammar read, at that value’s own token.

pub const fn capture_refused( grammar: Grammar, issue: CaptureIssue, at: SpanHandle, ) -> Self

One refusal from a shared descriptor reading, retained under the issue’s own authority.

pub const fn grammar(&self) -> Grammar

The grammar that was reading.

pub const fn issue(&self) -> CaptureIssue

Which of the two readings refused, and its own answer.

pub const fn at(&self) -> SpanHandle

The token the refusal was established at.

Trait Implementations

impl Clone for HelperRefusal

fn clone(&self) -> HelperRefusal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HelperRefusal

impl Debug for HelperRefusal

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

Formats the value using the given formatter.

impl Display for HelperRefusal

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

Formats the value using the given formatter.

impl Eq for HelperRefusal

impl Error for HelperRefusal

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 HelperRefusal

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 HelperRefusal

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HelperRefusal