Struct Metadata

pub struct Metadata(/* private fields */);

Schema metadata.

Metadata is a freeform map and a way to extend Typedef. The spec doesn’t specify what might go in there. By default, jtd_derive doesn’t generate any metadata.

Implementations

impl Metadata

pub fn from_map(m: impl Into<BTreeMap<&'static str, Value>>) -> Self

Construct a Metadata object from something that can be converted to the appropriate hashmap.

pub fn is_empty(&self) -> bool

Returns true if there are no metadata entries.

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl Default for Metadata

fn default() -> Metadata

Returns the “default value” for a type.

impl<A> Extend<A> for Metadata

where BTreeMap<&'static str, Value>: Extend<A>,

fn extend<T: IntoIterator<Item = A>>(&mut self, iter: T)

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 PartialEq for Metadata

fn eq(&self, other: &Metadata) -> 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 Serialize for Metadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Metadata

impl StructuralPartialEq for Metadata