Struct zng_var::VarHandles

pub struct VarHandles(pub Vec<VarHandle>);

Represents a collection of var handles.

Tuple Fields

0: Vec<VarHandle>

Implementations

impl VarHandles

pub const fn dummy() -> Self

Empty collection.

pub fn is_dummy(&self) -> bool

Returns true if empty or all handles are dummy.

pub fn perm(self)

Drop all handles without stopping their behavior.

pub fn push(&mut self, other: VarHandle) -> &mut Self

Add the other handle to the collection, if it is not dummy.

pub fn clear(&mut self)

Drop all handles.

Trait Implementations

impl Clone for VarHandles

fn clone(&self) -> VarHandles

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for VarHandles

fn default() -> VarHandles

Returns the “default value” for a type.

impl Extend<VarHandle> for VarHandles

fn extend<T: IntoIterator<Item = VarHandle>>(&mut self, iter: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<const N: usize> From<[VarHandle; N]> for VarHandles

fn from(handles: [VarHandle; N]) -> Self

Converts to this type from the input type.

impl FromIterator<VarHandle> for VarHandles

fn from_iter<T: IntoIterator<Item = VarHandle>>(iter: T) -> Self

Creates a value from an iterator.

impl IntoIterator for VarHandles

type Item = VarHandle

The type of the elements being iterated over.

type IntoIter = IntoIter<VarHandle>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.