Enum PlanError 

pub enum PlanError {
    DuplicateSlot(PaneSlot),
    BadRatio(f32),
}

Why a LayoutPlan failed LayoutPlan::validate. Mirrors the shipped crate::LayoutError discipline for the plan’s id space (slots, not panes). A plan that fails to validate never reaches realize, so a malformed definition can’t produce a broken live tree.

Variants

DuplicateSlot(PaneSlot)

The same PaneSlot appears in two leaves — a slot fills exactly one box, so aliasing would map two panes onto one position.

BadRatio(f32)

A split’s ratio is not in the open interval (0.0, 1.0).

Trait Implementations

impl Clone for PlanError

fn clone(&self) -> PlanError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlanError

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

Formats the value using the given formatter.

impl PartialEq for PlanError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PlanError