Struct FieldsSet 

pub struct FieldsSet { /* private fields */ }

A compact bitset representing “field is set” for indices 0..len.

Implementations

impl FieldsSet

pub fn empty(len: usize) -> Self

Create an empty (all-unset) set for len fields.

pub fn all(len: usize) -> Self

Create a full (all-set) set for len fields.

pub const fn len(&self) -> usize

Number of fields represented by this set.

pub const fn is_empty(&self) -> bool

True if len == 0.

pub fn set(&mut self, idx: usize)

Mark a field index as set.

Indices outside 0..len are ignored (defensive for forward-compat).

pub fn is_set(&self, idx: usize) -> bool

Check whether a field index is set.

Trait Implementations

impl Clone for FieldsSet

fn clone(&self) -> FieldsSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldsSet

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

Formats the value using the given formatter.

impl PartialEq for FieldsSet

fn eq(&self, other: &FieldsSet) -> 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 Eq for FieldsSet

impl StructuralPartialEq for FieldsSet