Enum LayoutPass

pub enum LayoutPass {
    Measure,
    Commit,
}

Authority of the geometry produced by the current layout traversal.

Measurement is speculative and must not commit persistent state derived from the temporary geometry. Commit passes use the allocation retained by the parent and may evaluate geometry-dependent effects. A measurement pass is sticky: descendants cannot regain commit authority locally.

Examples

use ailloli_ui_runtime::layout::LayoutPass;

assert!(LayoutPass::Measure.is_measure());
assert!(LayoutPass::Commit.is_committed());

Variants

Measure

Speculative intrinsic-size or allocation probe.

Commit

Authoritative retained allocation.

Implementations

impl LayoutPass

Provides phase predicates and sticky descendant composition.

pub const fn is_measure(self) -> bool

Returns true for speculative measurement geometry.

pub const fn is_committed(self) -> bool

Returns true for authoritative committed geometry.

Trait Implementations

impl Clone for LayoutPass

fn clone(&self) -> LayoutPass

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutPass

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

Formats the value using the given formatter.

impl Default for LayoutPass

fn default() -> LayoutPass

Returns the “default value” for a type.

impl Hash for LayoutPass

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

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 LayoutPass

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

impl Eq for LayoutPass

impl StructuralPartialEq for LayoutPass