Struct activitystreams::ext::Ext

pub struct Ext<T, U> {
    pub base: T,
    pub extension: U,
}

Defines an extension to an activitystreams object or link

This type provides two fields, the first field, base, should always the be base ActivityStreams type. As long as base implements an ActivityStreams trait, Ext will also.

For example, the type Ext<Video, HashMap<String, String>> will implement the Object trait, because Video implements that trait.

Additionally, AsRef and AsMut have been implemented for Ext. If type type Ext<Ext<Follow, SomeTime>, AnotherType> exists, that will implement AsRef<ActivityProperties> just like the innermost Follow.

Usage:

use activitystreams::object::Video;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut video = Video::full();

    // AsMut works even though this is an Ext<Video, ApObjectProperties>
    video
        .as_mut()
        .set_id("https://example.com")?;

    // set information on the extension
    video
        .extension
        .set_source_xsd_any_uri("https://example.com")?;

    Ok(())
}

Fields

base: T

The ActivityStreams base type, or another extension containing one

extension: U

The extension being applied to the type

Trait Implementations

impl<T, U> Activity for Ext<T, U> where
    T: Activity,
    U: Debug, 

impl<T, U> Actor for Ext<T, U> where
    T: Actor,
    U: Debug, 

impl<T, U, V> AsMut<V> for Ext<T, U> where
    T: Base + AsMut<V>,
    U: Extension<T> + Debug, 

fn as_mut(&mut self) -> &mut V

Performs the conversion.

impl<T, U, V> AsRef<V> for Ext<T, U> where
    T: Base + AsRef<V>,
    U: Extension<T> + Debug, 

fn as_ref(&self) -> &V

Performs the conversion.

impl<T, U> Base for Ext<T, U> where
    T: Base,
    U: Debug, 

impl<T: Clone, U: Clone> Clone for Ext<T, U>

fn clone(&self) -> Ext<T, U>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T, U> Collection for Ext<T, U> where
    T: Collection,
    U: Debug, 

impl<T, U> CollectionPage for Ext<T, U> where
    T: CollectionPage,
    U: Debug, 

impl<T: Debug, U: Debug> Debug for Ext<T, U>

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

Formats the value using the given formatter.

impl<T: Default, U: Default> Default for Ext<T, U>

fn default() -> Ext<T, U>

Returns the "default value" for a type.

impl<'de, T, U> Deserialize<'de> for Ext<T, U> where
    T: Deserialize<'de>,
    U: Deserialize<'de>, 

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl<T, U> IntransitiveActivity for Ext<T, U> where
    T: IntransitiveActivity,
    U: Debug, 

impl<T, U> Link for Ext<T, U> where
    T: Link,
    U: Debug, 

impl<T, U> Object for Ext<T, U> where
    T: Object,
    U: Debug, 

impl<T, U> Serialize for Ext<T, U> where
    T: Serialize,
    U: Serialize, 

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

Serialize this value into the given Serde serializer.

impl<T, U> TryFrom<Ext<T, U>> for BaseBox where
    T: Base + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for ObjectBox where
    T: Object + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for LinkBox where
    T: Link + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for CollectionBox where
    T: Collection + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for CollectionPageBox where
    T: CollectionPage + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for ActivityBox where
    T: Activity + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for IntransitiveActivityBox where
    T: IntransitiveActivity + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.

impl<T, U> TryFrom<Ext<T, U>> for ActorBox where
    T: Actor + Serialize,
    U: Extension<T> + Serialize + Debug, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(e: Ext<T, U>) -> Result<Self, Self::Error>

Performs the conversion.