pub enum ErrorKind {
    UnicodeNotAllowed,
    InvalidUtf8,
    UnicodePropertyNotFound,
    UnicodePropertyValueNotFound,
    UnicodePerlClassNotFound,
    UnicodeCaseUnavailable,
    EmptyClassNotAllowed,
    // some variants omitted
}
Expand description

The type of an error that occurred while building an Hir.

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UnicodeNotAllowed

This error occurs when a Unicode feature is used when Unicode support is disabled. For example (?-u:\pL) would trigger this error.

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InvalidUtf8

This error occurs when translating a pattern that could match a byte sequence that isn’t UTF-8 and allow_invalid_utf8 was disabled.

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UnicodePropertyNotFound

This occurs when an unrecognized Unicode property name could not be found.

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UnicodePropertyValueNotFound

This occurs when an unrecognized Unicode property value could not be found.

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UnicodePerlClassNotFound

This occurs when a Unicode-aware Perl character class (\w, \s or \d) could not be found. This can occur when the unicode-perl crate feature is not enabled.

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UnicodeCaseUnavailable

This occurs when the Unicode simple case mapping tables are not available, and the regular expression required Unicode aware case insensitivity.

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EmptyClassNotAllowed

This occurs when the translator attempts to construct a character class that is empty.

Note that this restriction in the translator may be removed in the future.

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impl Clone for ErrorKind

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fn clone(&self) -> ErrorKind

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ErrorKind

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

Formats the value using the given formatter. Read more
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impl Display for ErrorKind

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

Formats the value using the given formatter. Read more
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impl PartialEq<ErrorKind> for ErrorKind

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for ErrorKind

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impl StructuralEq for ErrorKind

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impl StructuralPartialEq for ErrorKind

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.