Enum json_ld::Object

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pub enum Object<T = IriBuf, B = BlankIdBuf, M = ()> {
    Value(Value<T, M>),
    Node(Box<Node<T, B, M>, Global>),
    List(List<T, B, M>),
}
Expand description

Object.

JSON-LD connects together multiple kinds of data objects. Objects may be nodes, values or lists of objects.

You can get an Object by expanding a JSON-LD document using the expansion algorithm or by converting an already expanded JSON document using TryFromJson.

Variants§

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Value(Value<T, M>)

Value object.

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Node(Box<Node<T, B, M>, Global>)

Node object.

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List(List<T, B, M>)

List object.

Implementations§

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impl<T, B, M> Object<T, B, M>

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pub fn node(n: Node<T, B, M>) -> Object<T, B, M>

Creates a new node object from a node.

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pub fn id(&self) -> Option<&Meta<Id<T, B>, M>>

Identifier of the object, if it is a node object.

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pub fn identify_all_with<V, G>(&mut self, vocabulary: &mut V, generator: &mut G)where V: Vocabulary<Iri = T, BlankId = B>, G: MetaGenerator<V, M>, M: Clone, T: Eq + Hash, B: Eq + Hash,

Assigns an identifier to every node included in this object using the given generator.

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pub fn identify_all<G>(&mut self, generator: &mut G)where G: MetaGenerator<(), M>, M: Clone, T: Eq + Hash, B: Eq + Hash, (): Vocabulary<Iri = T, BlankId = B>,

Use the given generator to assign an identifier to all nodes that don’t have one.

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pub fn canonicalize_with(&mut self, buffer: &mut Buffer)

Puts this object literals into canonical form using the given buffer.

The buffer is used to compute the canonical form of numbers.

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pub fn canonicalize(&mut self)

Puts this object literals into canonical form.

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pub fn types(&self) -> Types<'_, T, B, M>

Returns an iterator over the types of the object.

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pub fn as_iri(&self) -> Option<&T>

Identifier of the object as an IRI.

If the object is a node identified by an IRI, returns this IRI. Returns None otherwise.

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pub fn is_value(&self) -> bool

Tests if the object is a value.

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pub fn as_value(&self) -> Option<&Value<T, M>>

Returns this object as a value, if it is one.

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pub fn as_value_mut(&mut self) -> Option<&mut Value<T, M>>

Returns this object as a mutable value, if it is one.

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pub fn into_value(self) -> Option<Value<T, M>>

Converts this object as a value, if it is one.

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pub fn is_node(&self) -> bool

Tests if the object is a node.

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pub fn as_node(&self) -> Option<&Node<T, B, M>>

Returns this object as a node, if it is one.

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pub fn as_node_mut(&mut self) -> Option<&mut Node<T, B, M>>

Returns this object as a mutable node, if it is one.

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pub fn into_node(self) -> Option<Node<T, B, M>>

Converts this object into a node, if it is one.

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pub fn is_graph(&self) -> bool

Tests if the object is a graph object (a node with a @graph field).

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pub fn is_list(&self) -> bool

Tests if the object is a list.

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pub fn as_list(&self) -> Option<&List<T, B, M>>

Returns this object as a list, if it is one.

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pub fn as_list_mut(&mut self) -> Option<&mut List<T, B, M>>

Returns this object as a mutable list, if it is one.

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pub fn into_list(self) -> Option<List<T, B, M>>

Converts this object into a list, if it is one.

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pub fn as_str(&self) -> Option<&str>where T: AsRef<str>, B: AsRef<str>,

Get the object as a string.

If the object is a value that is a string, returns this string. If the object is a node that is identified, returns the identifier as a string. Returns None otherwise.

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

Get the value as a boolean, if it is.

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pub fn as_number(&self) -> Option<&Number>

Get the value as a number, if it is.

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pub fn language(&self) -> Option<LenientLanguageTag<'_>>

If the object is a language-tagged value, Return its associated language.

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pub fn traverse(&self) -> Traverse<'_, T, B, M>

Returns an iterator over all fragments of this object, including the object itself.

Fragments include:

  • objects
  • key-value pairs,
  • keys
  • values
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pub fn equivalent(&self, other: &Object<T, B, M>) -> boolwhere T: Eq + Hash, B: Eq + Hash,

Equivalence operator.

Equivalence is different from equality for anonymous objects: List objects and anonymous node objects have an implicit unlabeled blank nodes and thus never equivalent.

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pub fn entries(&self) -> Entries<'_, T, B, M>

Returns an iterator over the entries of JSON representation of the object.

Trait Implementations§

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impl<T, B, M> Any<T, B, M> for Object<T, B, M>

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fn as_ref(&self) -> Ref<'_, T, B, M>

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fn id_entry<'a>(&'a self) -> Option<&'a Entry<Id<T, B>, M>>where M: 'a,

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fn id<'a>(&'a self) -> Option<&'a Meta<Id<T, B>, M>>where M: 'a,

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fn language<'a>(&'a self) -> Option<LenientLanguageTag<'a>>where T: 'a, B: 'a, M: 'a,

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fn is_value(&self) -> bool

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fn is_node(&self) -> bool

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fn is_graph(&self) -> bool

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fn is_list(&self) -> bool

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impl<T, B, M> Clone for Object<T, B, M>where T: Clone, B: Clone, M: Clone,

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fn clone(&self) -> Object<T, B, M>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T, B, M> From<Node<T, B, M>> for Object<T, B, M>

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fn from(node: Node<T, B, M>) -> Object<T, B, M>

Converts to this type from the input type.
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impl<T, B, M> From<Value<T, M>> for Object<T, B, M>

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fn from(value: Value<T, M>) -> Object<T, B, M>

Converts to this type from the input type.
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impl<T, B, M> Hash for Object<T, B, M>where T: Hash, B: Hash, M: Hash,

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T, B, M, N> IntoJsonWithContextMeta<M, N> for Object<T, B, M>where M: Clone, N: Vocabulary<Iri = T, BlankId = B>,

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fn into_json_meta_with(self, meta: M, vocabulary: &N) -> Meta<Value<M>, M>

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impl<T, B, M> MappedEq<Object<T, B, M>> for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash,

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type BlankId = B

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fn mapped_eq<'a, 'b, F>(&'a self, other: &Object<T, B, M>, f: F) -> boolwhere F: Clone + Fn(&'a B) -> &'b B, B: 'a + 'b,

Structural equality with mapped blank identifiers. Read more
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impl<T, B, M> PartialEq<Object<T, B, M>> for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash, M: PartialEq<M>,

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fn eq(&self, other: &Object<T, B, M>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T, B, M> Relabel<T, B, M> for Object<T, B, M>

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fn relabel_with<N, G>( &mut self, vocabulary: &mut N, generator: &mut G, relabeling: &mut HashMap<B, Meta<Id<T, B>, M>, BuildHasherDefault<AHasher>, Global> )where N: Vocabulary<Iri = T, BlankId = B>, G: MetaGenerator<N, M>, M: Clone, T: Clone + Eq + Hash, B: Clone + Eq + Hash,

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impl<T, B, M> StrippedHash for Object<T, B, M>where T: Hash, B: Hash,

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fn stripped_hash<H>(&self, state: &mut H)where H: Hasher,

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impl<T, B, M> StrippedPartialEq<Object<T, B, M>> for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash,

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fn stripped_eq(&self, other: &Object<T, B, M>) -> bool

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impl<T, B, M> TryFrom<Object<T, B, M>> for Node<T, B, M>

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type Error = Object<T, B, M>

The type returned in the event of a conversion error.
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fn try_from(obj: Object<T, B, M>) -> Result<Node<T, B, M>, Object<T, B, M>>

Performs the conversion.
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impl<T, B, M> TryFromJson<T, B, M> for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash,

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fn try_from_json_in( vocabulary: &mut impl VocabularyMut<Iri = T, BlankId = B>, _: Meta<Value<M>, M> ) -> Result<Meta<Object<T, B, M>, M>, Meta<InvalidExpandedJson<M>, M>>

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impl<T, B, M> TryFromJsonObject<T, B, M> for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash,

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fn try_from_json_object_in( vocabulary: &mut impl VocabularyMut<Iri = T, BlankId = B>, _: Meta<Object<M>, M> ) -> Result<Meta<Object<T, B, M>, M>, Meta<InvalidExpandedJson<M>, M>>

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impl<T, B, M> Eq for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash, M: Eq,

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impl<T, B, M> StrippedEq for Object<T, B, M>where T: Eq + Hash, B: Eq + Hash,

Auto Trait Implementations§

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impl<T, B, M> RefUnwindSafe for Object<T, B, M>where B: RefUnwindSafe, M: RefUnwindSafe, T: RefUnwindSafe,

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impl<T, B, M> Send for Object<T, B, M>where B: Send, M: Send, T: Send,

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impl<T, B, M> Sync for Object<T, B, M>where B: Sync, M: Sync, T: Sync,

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impl<T, B, M> Unpin for Object<T, B, M>where M: Unpin, T: Unpin,

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impl<T, B, M> UnwindSafe for Object<T, B, M>where B: UnwindSafe, M: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> At for T

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fn at<M>(self, metadata: M) -> Meta<T, M>

Wraps self inside a Meta<Self, M> using the given metadata. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> BorrowStripped for T

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fn stripped(&self) -> &Stripped<T>

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impl<T> BorrowUnordered for T

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fn unordered(&self) -> &Unordered<T>

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impl<T> CallHasher for Twhere T: Hash + ?Sized,

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default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64where H: Hash + ?Sized, B: BuildHasher,

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impl<I, B, M, T> CompactIndexedFragment<I, B, M> for Twhere T: Any<I, B, M>,

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fn compact_indexed_fragment<N, C, L, 'a>( &'a self, vocabulary: &'a mut N, meta: &'a M, index: Option<&'a Entry<String, M>>, active_context: &'a Context<I, B, C, M>, type_scoped_context: &'a Context<I, B, C, M>, active_property: Option<Meta<&'a str, &'a M>>, loader: &'a mut L, options: Options ) -> Pin<Box<dyn Future<Output = Result<Meta<Value<M>, M>, Meta<Error<<L as ContextLoader<I, M>>::ContextError>, M>>> + Send + 'a, Global>>where L: Loader<I, M> + ContextLoader<I, M> + Send + Sync, N: Send + Sync + VocabularyMut<Iri = I, BlankId = B>, I: Clone + Hash + Eq + Send + Sync, B: Clone + Hash + Eq + Send + Sync, M: Clone + Send + Sync, C: ProcessMeta<I, B, M>, <L as ContextLoader<I, M>>::Context: Into<C>,

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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, C> FromWithContext<T, C> for T

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fn from_with(value: T, _context: &C) -> T

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U, C> IntoWithContext<U, C> for Twhere U: FromWithContext<T, C>,

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fn into_with(self, context: &C) -> U

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToOwned for T

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type Owned = T

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U, C> TryFromWithContext<U, C> for Twhere U: IntoWithContext<T, C>,

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type Error = Infallible

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fn try_from_with( value: U, context: &C ) -> Result<T, <T as TryFromWithContext<U, C>>::Error>

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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, U, C> TryIntoWithContext<U, C> for Twhere U: TryFromWithContext<T, C>,

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type Error = <U as TryFromWithContext<T, C>>::Error

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fn try_into_with( self, context: &C ) -> Result<U, <T as TryIntoWithContext<U, C>>::Error>

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impl<T> WithContext for Twhere T: ?Sized,

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fn with<C>(&self, context: C) -> Contextual<&T, C>

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fn into_with<C>(self, context: C) -> Contextual<T, C>