pub struct Error { /* private fields */ }
Expand description
An error that occurred while parsing a regular expression into an abstract syntax tree.
Note that not 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
).
Implementations§
Source§impl Error
impl Error
Sourcepub fn pattern(&self) -> &str
pub fn pattern(&self) -> &str
The original pattern string in which this error occurred.
Every span reported by this error is reported in terms of this string.
Sourcepub fn auxiliary_span(&self) -> Option<&Span>
pub fn auxiliary_span(&self) -> Option<&Span>
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§
Source§impl Error for Error
impl Error for Error
1.30.0 · Source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
1.0.0 · Source§fn description(&self) -> &str
fn description(&self) -> &str
impl Eq for Error
impl StructuralPartialEq for Error
Auto Trait Implementations§
impl Freeze for Error
impl RefUnwindSafe for Error
impl Send for Error
impl Sync for Error
impl Unpin for Error
impl UnwindSafe for Error
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)