Struct Context 

pub struct Context<V, T = ()>(/* private fields */);

JSON-LD context.

This type represents the value of the @context property.

It is an ordered set where the first item is a URI given by the V type parameter implementing RequiredContext, followed by a list of more required context given by the type parameter T, implementing RequiredContextList.

Implementations

impl<V, T> Context<V, T>

pub fn contains(&self, entry: &ContextEntry) -> bool

Checks if this context contains the given entry.

pub fn contains_iri(&self, iri: &Iri) -> bool

Checks if this context contains the given IRI entry.

pub fn contains_iri_ref(&self, iri_ref: &IriRef) -> bool

Checks if this context contains the given IRI reference entry.

pub fn iter(&self) -> Iter<'_, ContextEntry>

Returns an iterator over the context entries.

pub fn insert(&mut self, entry: ContextEntry) -> bool

Inserts the given entry in the context.

Appends the entry at the end unless it is already present.

Returns true if the entry was not already present. Returns false if the entry was already present in the context, in which case it is not added a second time.

Trait Implementations

impl<V, T> AsRef<Context> for Context<V, T>

fn as_ref(&self) -> &Context

Converts this type into a shared reference of the (usually inferred) input type.

impl<V, T> Borrow<Context> for Context<V, T>

fn borrow(&self) -> &Context

Immutably borrows from an owned value.

impl<V, T> Clone for Context<V, T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<V, T> Debug for Context<V, T>

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

Formats the value using the given formatter.

impl<V: RequiredContext, T: RequiredContextList> Default for Context<V, T>

fn default() -> Self

Returns the “default value” for a type.

impl<'de, V: RequiredContext, T: RequiredContextList> Deserialize<'de> for Context<V, T>

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<V, T> Extend<ContextEntry> for Context<V, T>

fn extend<E: IntoIterator<Item = ContextEntry>>(&mut self, iter: E)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements.

impl<V, T> From<Context<V, T>> for Context

fn from(value: Context<V, T>) -> Self

Converts to this type from the input type.

impl<'a, V, T> IntoIterator for &'a Context<V, T>

type Item = &'a ContextEntry

The type of the elements being iterated over.

type IntoIter = Iter<'a, ContextEntry>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<V, T> IntoIterator for Context<V, T>

type Item = ContextEntry

The type of the elements being iterated over.

type IntoIter = IntoIter

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<V, T> Serialize for Context<V, T>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<V: RequiredContext, T: RequiredContextList> TryFrom<Context> for Context<V, T>

type Error = InvalidContext

The type returned in the event of a conversion error.

fn try_from(value: Context) -> Result<Self, Self::Error>

Performs the conversion.