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.

Variants

UnicodeNotAllowed

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

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.

UnicodePropertyNotFound

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

UnicodePropertyValueNotFound

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

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.

UnicodeCaseUnavailable

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

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.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

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

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.