Enum Associativity 

pub enum Associativity {
    Left,
    Right,
    None,
}

Operator associativity defines how operators of the same precedence are grouped.

Associativity determines whether an expression like a + b + c is interpreted as (a + b) + c (left-associative) or a + (b + c) (right-associative). Non-associative operators cannot be chained together without explicit parentheses.

Variants

Left

Left-associative operators group from left to right. For example, subtraction is left-associative: a - b - c means (a - b) - c

Right

Right-associative operators group from right to left. For example, assignment is right-associative: a = b = c means a = (b = c)

None

Non-associative operators cannot be chained without parentheses. For example, comparison operators are typically non-associative

Trait Implementations

impl Clone for Associativity

fn clone(&self) -> Associativity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Associativity

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

Formats the value using the given formatter.

impl PartialEq for Associativity

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

impl Eq for Associativity

impl StructuralPartialEq for Associativity