Enum GrowthDirection 

#[non_exhaustive]
pub enum GrowthDirection {
    Forward,
}

The sliver protocol a scrolling viewport lays its children out with — a widget implements SliverWidget and overrides Widget::as_sliver to answer SliverConstraints with a SliverGeometry; a viewport lays such a child out through ChildPod::layout_sliver_child. Lifted so an app’s own sliver needs no direct frust-core dependency. Which way content grows relative to the viewport’s leading edge — Flutter’s GrowthDirection.

Only GrowthDirection::Forward exists: slivers are laid out from the leading edge outward in the axis’ natural direction. The type is non-exhaustive so a reverse-growing (centre-anchored) viewport can add Flutter’s reverse without breaking a match.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Forward

Content grows away from the viewport’s leading edge, in the scroll axis’ natural direction (down, or right).

Trait Implementations

impl Clone for GrowthDirection

fn clone(&self) -> GrowthDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GrowthDirection

impl Debug for GrowthDirection

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

Formats the value using the given formatter.

impl Default for GrowthDirection

fn default() -> GrowthDirection

Returns the “default value” for a type.

impl Eq for GrowthDirection

impl Hash for GrowthDirection

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 GrowthDirection

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GrowthDirection