Enum StackShapeError 

pub enum StackShapeError {
    GapCountMismatch {
        tiers: usize,
        gaps: usize,
    },
    NoTiers,
    EmptyVerticalClass {
        gap: usize,
    },
}

A shape violation — a stack that cannot mean anything is refused with a name.

Variants

GapCountMismatch

gaps.len() must be exactly tiers.len() − 1.

Fields

tiers: usize

gaps: usize

NoTiers

EmptyVerticalClass

A vertical class with count == 0 is a phantom resource.

Fields

gap: usize

Trait Implementations

impl Clone for StackShapeError

fn clone(&self) -> StackShapeError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StackShapeError

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

Formats the value using the given formatter.

impl PartialEq for StackShapeError

fn eq(&self, other: &StackShapeError) -> 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 StructuralPartialEq for StackShapeError