Struct sophia_term::blank_node::BlankNode

pub struct BlankNode<TD: TermData>(_);

An RDF blank node.

See module documentation for more detail.

Implementations

impl<TD> BlankNode<TD> where
    TD: TermData, 

pub fn new<U>(id: U) -> Result<Self> where
    U: AsRef<str>,
    TD: From<U>, 

Return a new blank node with the given identifier.

May fail if id is not a valid identifier according to BLANK_NODE_LABEL. This means that it must not include the typical leading _:.

pub fn new_unchecked<U>(id: U) -> Self where
    U: AsRef<str>,
    TD: From<U>, 

Return a new blank node with the given identifier.

Pre-condition

This function requires that id is a valid blank node identifier.

pub fn as_ref(&self) -> BlankNode<&TD>

Borrow the inner contents of the blank node.

pub fn as_ref_str(&self) -> BlankNode<&str>

Borrow the inner contents of the blank node as &str.

pub fn map<F, TD2>(self, f: F) -> BlankNode<TD2> where
    F: FnMut(TD) -> TD2,
    TD2: TermData, 

Create a new blank node by applying f to the TermData of self.

pub fn map_into<TD2>(self) -> BlankNode<TD2> where
    TD: Into<TD2>,
    TD2: TermData, 

Maps the blank node using the Into trait.

pub fn clone_map<'a, U, F>(&'a self, factory: F) -> BlankNode<U> where
    U: TermData,
    F: FnMut(&'a str) -> U, 

Clone self while transforming the inner TermData with the given factory.

This is done in one step in contrast to calling clone().map(factory).

pub fn clone_into<'src, U>(&'src self) -> BlankNode<U> where
    U: TermData + From<&'src str>, 

Apply clone_map() using the Into trait.

pub fn as_str(&self) -> &str

Borrow the blank nodes ID.

Note: The ID does not have a leading _:.

pub fn write_fmt<W>(&self, w: &mut W) -> Result where
    W: Write, 

Writes the blank node to the fmt::Write using the N3 syntax.

pub fn write_io<W>(&self, w: &mut W) -> Result<()> where
    W: Write, 

Writes the blank node to the io::Write using the N3 syntax.

Trait Implementations

impl<TD: Clone + TermData> Clone for BlankNode<TD>

fn clone(&self) -> BlankNode<TD>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<TD: Copy + TermData> Copy for BlankNode<TD>

impl<TD: Debug + TermData> Debug for BlankNode<TD>

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

Formats the value using the given formatter.

impl<TD> Deref for BlankNode<TD> where
    TD: TermData, 

type Target = TD

The resulting type after dereferencing.

fn deref(&self) -> &TD

Dereferences the value.

impl<TD> Display for BlankNode<TD> where
    TD: TermData, 

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

Formats the value using the given formatter.

impl<TD: Eq + TermData> Eq for BlankNode<TD>

impl<TD> From<BlankNode<TD>> for Term<TD> where
    TD: TermData, 

fn from(bn: BlankNode<TD>) -> Self

Performs the conversion.

impl<TD> Hash for BlankNode<TD> where
    TD: TermData, 

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, 

Feeds a slice of this type into the given [Hasher].

impl<TD: Ord + TermData> Ord for BlankNode<TD>

fn cmp(&self, other: &BlankNode<TD>) -> Ordering

This method returns an [Ordering] between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<TD, TE: ?Sized> PartialEq<TE> for BlankNode<TD> where
    TD: TermData,
    TE: TTerm, 

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

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

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

This method tests for !=.

impl<TD, TE: ?Sized> PartialOrd<TE> for BlankNode<TD> where
    TD: TermData,
    TE: TTerm, 

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

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

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

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

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

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

#[must_use]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<TD: TermData> StructuralEq for BlankNode<TD>

impl<TD: TermData> TTerm for BlankNode<TD>

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.

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

Return the "value" of this term, which depends on its kind: * for an IRI reference, its value; * for a literal, its lexical value; * for a blank node, its local identifier; * for a variable, its name.

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

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

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

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

fn is_absolute(&self) -> bool

All terms are absolute, except for: * relative IRI references, * literals whose datatype is a relative IRI reference.

impl<TD> TryCopyTerm for BlankNode<TD> where
    TD: TermData + for<'x> From<&'x str>, 

type Error = TermError

The error type produced when failing to copy a given term

fn try_copy<T: ?Sized>(term: &T) -> Result<Self, Self::Error> where
    T: TTerm, 

Try to copy term into an instance of this type.

impl<'a, T, U> TryFrom<&'a Term<U>> for BlankNode<T> where
    T: TermData + From<&'a str>,
    U: TermData, 

type Error = TermError

The type returned in the event of a conversion error.

fn try_from(term: &'a Term<U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<TD> TryFrom<Term<TD>> for BlankNode<TD> where
    TD: TermData, 

type Error = TermError

The type returned in the event of a conversion error.

fn try_from(term: Term<TD>) -> Result<Self, Self::Error>

Performs the conversion.