Enum ParentCountRule 

pub enum ParentCountRule {
    Exactly(usize),
    AtLeast(usize),
    AtLeastOdd(usize),
}

Parent-count constraint for a method.

Variants

Exactly(usize)

Exactly this many parents.

AtLeast(usize)

At least this many parents (no parity constraint).

AtLeastOdd(usize)

At least this many parents, and the count must be odd.

Trait Implementations

impl Clone for ParentCountRule

fn clone(&self) -> ParentCountRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParentCountRule

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

Formats the value using the given formatter.

impl PartialEq for ParentCountRule

fn eq(&self, other: &ParentCountRule) -> 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 ParentCountRule

impl Eq for ParentCountRule

impl StructuralPartialEq for ParentCountRule