Struct 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, V> AsMut<V> for Ext<T, U>

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

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

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

impl<T, U, V> AsRef<V> for Ext<T, U>

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

fn as_ref(&self) -> &V

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

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

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

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> 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 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 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.

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 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 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 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 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> 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> Base for Ext<T, U>

where T: Base, U: Debug,

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, 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,