Struct HeapEntry 

pub struct HeapEntry {
    pub value: GcRef,
    pub descriptor: &'static TypeDescriptor,
}

A max-heap entry: the element GcRef plus its descriptor. Ord dispatches to the descriptor’s compare callback (ADR-045). MaxHeap uses this directly; MinHeap wraps it in Reverse.

Fields

value: GcRef

The element value.

descriptor: &'static TypeDescriptor

The element’s descriptor (for trace/equals/hash/format/compare).

Trait Implementations

impl Clone for HeapEntry

fn clone(&self) -> HeapEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HeapEntry

impl Debug for HeapEntry

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

Formats the value using the given formatter.

impl Eq for HeapEntry

impl Ord for HeapEntry

fn cmp(&self, other: &Self) -> Ordering

The element type’s own order, through its descriptor (ADR-045).

Two answers are Equal for a reason rather than by accident: entries whose descriptors differ (which a homogeneous heap never has, so this is the miscompile case) and an element type with no ordering at all. There is no fault channel inside Ord, and a heap whose comparisons are all Equal is a consistent total order — the heap degrades to a bag instead of corrupting its sift invariants. What it must never do is read every payload as an i64: that puts -2.0 after -1.0 and reads four bytes past a Char.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for HeapEntry

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for HeapEntry

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.