Enum GraphBondOrder 

#[repr(u8)]
pub enum GraphBondOrder {
    Single = 1,
    Double = 2,
    Triple = 3,
    Aromatic = 4,
}

Describes the discrete bond multiplicities supported in input graphs.

The values intentionally match their valence contribution so that helpers like electron counting can treat Single as 1, Double as 2, etc. This enum includes aromatic bonds for input parsing.

Variants

Single = 1

A single bond contributing one unit of valence.

Double = 2

A double bond contributing two units of valence.

Triple = 3

A triple bond contributing three units of valence.

Aromatic = 4

A Kekulé-aromatic bond that gets expanded during perception.

Trait Implementations

impl Clone for GraphBondOrder

fn clone(&self) -> GraphBondOrder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphBondOrder

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

Formats the value using the given formatter.

impl Display for GraphBondOrder

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

Formats the value using the given formatter.

impl FromStr for GraphBondOrder

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a textual bond order into the GraphBondOrder enum.

Accepts the canonical variant names ("Single", "Double", etc.).

Errors

Returns ParseBondOrderError if the string is not one of the supported keywords.

type Err = ParseBondOrderError

The associated error which can be returned from parsing.

impl Hash for GraphBondOrder

fn hash<__H: Hasher>(&self, state: &mut __H)

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 Ord for GraphBondOrder

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

This method returns an Ordering between self and other.

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 GraphBondOrder

fn eq(&self, other: &GraphBondOrder) -> 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 PartialOrd for GraphBondOrder

fn partial_cmp(&self, other: &GraphBondOrder) -> 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.

impl Copy for GraphBondOrder

impl Eq for GraphBondOrder

impl StructuralPartialEq for GraphBondOrder