Struct SetLayerHandle 

pub struct SetLayerHandle { /* private fields */ }

A handle to a layer that may span several scenes.

Distinct from LayerHandle, which names a layer within one scene: this names the set of them a single add_layer created, so removing it removes every copy.

Implementations

impl SetLayerHandle

pub const fn is_valid(self) -> bool

Whether this handle ever named anything.

A default handle does not. Checked rather than assumed because the default is what a caller gets from SetLayerHandle::default(), and removing with one must not remove whatever happens to be at index zero.

Trait Implementations

impl Clone for SetLayerHandle

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SetLayerHandle

impl Debug for SetLayerHandle

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

Formats the value using the given formatter.

impl Default for SetLayerHandle

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SetLayerHandle

impl PartialEq for SetLayerHandle

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SetLayerHandle