Struct PathFieldSet 

pub struct PathFieldSet { /* private fields */ }

A set of field indices, backed by a bit set.

Used to track which fields are present in a SparseRecord or which fields are part of a type description. Supports set operations like union (|), intersection (&), and membership tests.

Examples

use toasty_core::stmt::PathFieldSet;

let mut set = PathFieldSet::new();
set.insert(0);
set.insert(2);
assert!(set.contains(0_usize));
assert!(!set.contains(1_usize));
assert_eq!(set.len(), 2);

Implementations

impl PathFieldSet

pub fn new() -> PathFieldSet

Creates an empty field set.

pub fn from_slice<T>(fields: &[T]) -> PathFieldSet

where &'a T: for<'a> Into<usize>,

Creates a field set from a slice of values convertible to usize.

pub fn contains(&self, val: impl Into<usize>) -> bool

Returns true if the set contains the given field index.

pub fn iter(&self) -> PathFieldSetIter<'_>

Returns an iterator over the field indices in ascending order.

pub fn is_empty(&self) -> bool

Returns true if the set contains no field indices.

pub fn len(&self) -> usize

Returns the number of field indices in the set.

pub fn insert(&mut self, val: usize)

Inserts a field index into the set.

Trait Implementations

impl BitAnd for PathFieldSet

type Output = PathFieldSet

The resulting type after applying the & operator.

fn bitand(self, rhs: PathFieldSet) -> PathFieldSet

Performs the & operation.

impl BitOr for PathFieldSet

type Output = PathFieldSet

The resulting type after applying the | operator.

fn bitor(self, rhs: PathFieldSet) -> PathFieldSet

Performs the | operation.

impl BitOrAssign for PathFieldSet

fn bitor_assign(&mut self, rhs: PathFieldSet)

Performs the |= operation.

impl Clone for PathFieldSet

fn clone(&self) -> PathFieldSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PathFieldSet

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

Formats the value using the given formatter.

impl Default for PathFieldSet

fn default() -> PathFieldSet

Returns the “default value” for a type.

impl FromIterator<usize> for PathFieldSet

fn from_iter<T>(iter: T) -> PathFieldSet

where T: IntoIterator<Item = usize>,

Creates a value from an iterator.

impl Hash for PathFieldSet

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PathFieldSet

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

impl StructuralPartialEq for PathFieldSet