Struct rio_api::model::Variable

pub struct Variable<'a> {
    pub name: &'a str,
}

A SPARQL variable.

The default string formatter is returning a SPARQL compatible representation.

use rio_api::model::Variable;

assert_eq!(
    "?foobar",
    Variable { name: "foobar" }.to_string()
)

Using it requires to enable the generalized feature.

Fields

name: &'a str

The name of the variable itself.

Trait Implementations

impl<'a> Clone for Variable<'a>

fn clone(&self) -> Variable<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for Variable<'a>

impl<'a> Debug for Variable<'a>

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

Formats the value using the given formatter.

impl<'a> Display for Variable<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for Variable<'a>

impl<'a> From<Variable<'a>> for GeneralizedTerm<'a>

fn from(other: Variable<'a>) -> GeneralizedTerm<'a>

Performs the conversion.

impl<'a> Hash for Variable<'a>

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

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<'a> Ord for Variable<'a>

fn cmp(&self, other: &Variable<'a>) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<'a> PartialEq<Variable<'a>> for Variable<'a>

fn eq(&self, other: &Variable<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Variable<'a>) -> bool

This method tests for !=.

impl<'a> PartialOrd<Variable<'a>> for Variable<'a>

fn partial_cmp(&self, other: &Variable<'a>) -> Option<Ordering>

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

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

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

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

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

impl<'a> StructuralEq for Variable<'a>

impl<'a> StructuralPartialEq for Variable<'a>

impl<'a> TTerm for Variable<'a>

fn kind(&self) -> TermKind

Returns the kind of this term (IRI, literal, blank node, variable).

fn value_raw(&self) -> RawValue<'_>

Return the “value” of this term, possibly split in two substrings. The second part might only be non-empty if this term is an IRI reference.

fn as_dyn(&self) -> &dyn TTerm

This method ensures that all implementations of TTerm can be turned into a trait object.

pub fn value(&self) -> MownStr<'_>

Return the “value” of this term, which depends on its kind:

pub fn datatype(&self) -> Option<SimpleIri<'_>>

Return the datatype IRI of this term if it is a literal.

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

Return the language tag of this term if it is a language-tagged literal.

pub fn is_absolute(&self) -> bool

All terms are absolute, except for: