Enum ScannerBuildError 

pub enum ScannerBuildError {
    Uncompilable {
        token_id: TokenId,
        reason: String,
    },
    UnsupportedGlobalFlags {
        flags: u32,
    },
}

Variants

Uncompilable

Neither engine accepts the pattern (Lark validation parity, reported by the lexer build as uncompilable).

Fields

token_id: TokenId

reason: String

UnsupportedGlobalFlags

g_regex_flags carries a bit we do not support (only re.I | re.M | re.S | re.X map onto the engines; re.U is a no-op). Loud, never silent — Display names the offending bits.

Fields

flags: u32

Trait Implementations

impl Clone for ScannerBuildError

fn clone(&self) -> ScannerBuildError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScannerBuildError

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

Formats the value using the given formatter.

impl Display for ScannerBuildError

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

Formats the value using the given formatter.

impl Eq for ScannerBuildError

impl Error for ScannerBuildError

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 PartialEq for ScannerBuildError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ScannerBuildError