Enum AttributeValue 

pub enum AttributeValue {
    Numeric(f64),
    Boolean(bool),
    String(String),
}

A single attribute value, as stored by the C attribute handler.

It converts from f64, i32, i64, bool, &str and String, so the generic setters such as Graph::set_vertex_attr accept those directly.

Variants

Numeric(f64)

A numeric value.

Boolean(bool)

A boolean value.

String(String)

A string value.

Implementations

impl AttributeValue

pub fn attribute_type(&self) -> AttributeType

The AttributeType of this value.

pub fn as_f64(&self) -> Option<f64>

The number, if this is a numeric value.

pub fn as_bool(&self) -> Option<bool>

The boolean, if this is a boolean value.

pub fn as_str(&self) -> Option<&str>

The string, if this is a string value.

Trait Implementations

impl Clone for AttributeValue

fn clone(&self) -> AttributeValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttributeValue

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

Formats the value using the given formatter.

impl Display for AttributeValue

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

Formats the value using the given formatter.

impl From<&str> for AttributeValue

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for AttributeValue

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<bool> for AttributeValue

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f64> for AttributeValue

fn from(x: f64) -> Self

Converts to this type from the input type.

impl From<i32> for AttributeValue

fn from(x: i32) -> Self

Converts to this type from the input type.

impl From<i64> for AttributeValue

fn from(x: i64) -> Self

Converts to a numeric value (precision is lost beyond 2^53).

impl PartialEq for AttributeValue

fn eq(&self, other: &AttributeValue) -> 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 AttributeValue