Enum BacktrackingSeverity 

pub enum BacktrackingSeverity {
    None,
    Linear,
    Exponential,
}

Severity of a backtracking issue

Variants

None

No shared prefix between alternatives

Linear

Shared prefix exists but contains no recursion (O(k*n) worst case)

Exponential

Shared prefix contains recursive rules (O(2^n) worst case)

Trait Implementations

impl Clone for BacktrackingSeverity

fn clone(&self) -> BacktrackingSeverity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BacktrackingSeverity

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

Formats the value using the given formatter.

impl PartialEq for BacktrackingSeverity

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for BacktrackingSeverity

impl Eq for BacktrackingSeverity

impl StructuralPartialEq for BacktrackingSeverity