Struct OwedBy 

pub struct OwedBy {
    pub transitions: Vec<FrameHolder>,
    pub cycles: Vec<FrameHolder>,
    pub departures: Vec<FrameHolder>,
    pub scrolls: Vec<FrameHolder>,
    pub autoscroll: Option<FrameHolder>,
    pub animate: Vec<FrameHolder>,
    pub requests: Vec<FrameRequest>,
}

Who holds the frame the last one left owed: Core::owed, named. Each list is empty when its kind in crate::Owed is false, and names what made it true when it is.

Read with Core::owed_by from inside a view, where it describes the frame before — the reason the frame being built exists — or between frames, where it still does. Empty unless Core::set_frame_trace turned the record on before that frame began.

Fields

transitions: Vec<FrameHolder>

Nodes with a transition mid-flight, each with its slots (Owed::transition).

cycles: Vec<FrameHolder>

Nodes with a keyframe cycle running (Owed::cycle).

departures: Vec<FrameHolder>

Subtrees still playing their exit (Owed::depart).

scrolls: Vec<FrameHolder>

Scroll containers easing a programmatic offset change (Owed::scroll).

autoscroll: Option<FrameHolder>

The container a held drag is scrolling (Owed::autoscroll).

animate: Vec<FrameHolder>

Nodes declaring animate (half of Owed::requested).

requests: Vec<FrameRequest>

Where the frame was asked for (the other half of Owed::requested), one per calling line, in the order first asked, at most OwedBy::REQUESTS of them.

Implementations

impl OwedBy

pub const REQUESTS: usize = 32

How many distinct asking lines a frame keeps.

pub fn is_empty(&self) -> bool

Nothing held.

Trait Implementations

impl Clone for OwedBy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OwedBy

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

Formats the value using the given formatter.

impl Default for OwedBy

fn default() -> Self

Returns the “default value” for a type.

impl Eq for OwedBy

impl PartialEq for OwedBy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for OwedBy