Enum Annotation

pub enum Annotation {
    Marker(MarkerAnnotation),
    OType(TypeId),
    Exception(ExceptionAnnotation),
}

Types of annotations we support.

Usually you’d expect one of those annotation types in any given situation. For convenience the match methods Self::as_marker, Self::as_otype and Self::as_exception are provided. These are particularly useful in conjunction with e.g. Iterator::filter_map

Variants

Marker(MarkerAnnotation)

OType(TypeId)

Exception(ExceptionAnnotation)

Implementations

impl Annotation

pub const fn is_marker(&self) -> bool

Returns true if the enum is Annotation::Marker otherwise false

pub const fn is_o_type(&self) -> bool

Returns true if the enum is Annotation::OType otherwise false

pub const fn is_exception(&self) -> bool

Returns true if the enum is Annotation::Exception otherwise false

impl Annotation

pub fn as_marker(&self) -> Option<&MarkerAnnotation>

If this is an Annotation::Marker, returns the underlying MarkerAnnotation.

pub fn as_otype(&self) -> Option<TypeId>

If this is an Annotation::OType, returns the underlying TypeId.

pub fn as_exception(&self) -> Option<&ExceptionAnnotation>

If this is an Annotation::Exception, returns the underlying ExceptionAnnotation.

Trait Implementations

impl Clone for Annotation

fn clone(&self) -> Annotation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Annotation

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for Annotation

fn decode(__decoder: &mut __D) -> Self

impl<'de> Deserialize<'de> for Annotation

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<__E: SpanEncoder> Encodable<__E> for Annotation

fn encode(&self, __encoder: &mut __E)

impl PartialEq for Annotation

fn eq(&self, other: &Annotation) -> 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 Annotation

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 Annotation

impl StructuralPartialEq for Annotation