Enum LayoutError 

pub enum LayoutError {
    NullLeaf,
    DuplicatePane(PaneId),
    BadRatio(f32),
}

Why a LayoutNode failed LayoutNode::validate. Every variant names a structurally-illegal tree so the invariant violation is a typed value, not a silent mis-render (UNREPRESENTABILITY: a tree that fails to validate never reaches the renderer).

Variants

NullLeaf

A leaf carries PaneId::NULL — a dangling reference left by a botched removal. The renderer would draw a blank hole.

DuplicatePane(PaneId)

The same PaneId appears in two leaves. A pane belongs to exactly one slot; aliasing means two views fight over one PTY.

BadRatio(f32)

A split’s ratio is not in the open interval (0.0, 1.0) — a 0 or 1 (or NaN/out-of-range) ratio means one side is unrepresentable.

Trait Implementations

impl Clone for LayoutError

fn clone(&self) -> LayoutError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutError

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

Formats the value using the given formatter.

impl PartialEq for LayoutError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LayoutError