Struct regex_syntax::ast::Error

[+] Show declaration

pub struct Error { /* fields omitted */ }

[−] Expand description

An error that occurred while parsing a regular expression into an abstract syntax tree.

Note that note all ASTs represents a valid regular expression. For example, an AST is constructed without error for \p{Quux}, but Quux is not a valid Unicode property name. That particular error is reported when translating an AST to the high-level intermediate representation (HIR).

Methods

impl Error

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pub fn kind(&self) -> &ErrorKind

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Return the type of this error.

pub fn pattern(&self) -> &str

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The original pattern string in which this error occurred.

Every span reported by this error is reported in terms of this string.

pub fn span(&self) -> &Span

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Return the span at which this error occurred.

pub fn auxiliary_span(&self) -> Option<&Span>

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Return an auxiliary span. This span exists only for some errors that benefit from being able to point to two locations in the original regular expression. For example, "duplicate" errors will have the main error position set to the duplicate occurrence while its auxiliary span will be set to the initial occurrence.

Trait Implementations

impl Clone for Error

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fn clone(&self) -> Error

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Debug for Error

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

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Formats the value using the given formatter.

impl Eq for Error

impl PartialEq for Error

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

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This method tests for self and other values to be equal, and is used by ==.

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

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This method tests for !=.

impl Error for Error

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fn description(&self) -> &str

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This method is soft-deprecated.

fn cause(&self) -> Option<&Error>

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The lower-level cause of this error, if any.

impl Display for Error

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

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Formats the value using the given formatter.

impl From<Error> for Error

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fn from(err: Error) -> Error

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Performs the conversion.