License, Readme, start documentation

Done: - Base Todo: - Primitives - Unparsed - Object - Actor - Activity - Link
2020-05-15 20:08:43 -05:00 · 2020-05-15 20:08:43 -05:00 · 4f4cec8fec
commit 4f4cec8fec
parent a86050d234
9 changed files with 1393 additions and 37 deletions
--- a/Cargo.toml
+++ b/Cargo.toml
@ -1,7 +1,11 @@
 [package]
 name = "activitystreams-new"
 version = "0.1.0"
 license = "GPL-3.0"
 authors = ["asonix <asonix@asonix.dog>"]
 repository = "https://git.asonix.dog/asonix/activitystreams-sketch"
 readme = "README.md"
 keywords = ["activitystreams", "activitypub"]
 edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
--- a/674
+++ b/674
@ -0,0 +1,674 @@
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 notice like this when it starts in an interactive mode:
    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.
 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, your program's commands
 might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
 <http://www.gnu.org/licenses/>.
  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <http://www.gnu.org/philosophy/why-not-lgpl.html>.
--- a/README.md
+++ b/README.md
@ -0,0 +1,244 @@
 # ActivityStreams
 __A set of Traits and Types that make up the ActivityStreams and ActivityPub specifications__
 - [Read the documentation on docs.rs](https://docs.rs/activitystreams)
 - [Find the crate on crates.io](https://crates.io/crates/activitystreams)
 - [hit me up on Mastodon](https://asonix.dog/@asonix)
 ## Usage
 First, add ActivityStreams to your dependencies
 ```toml
 activitystreams = "0.6.2"
 ```
 ### Types
 The project is laid out by Kind => vocabulary => Type
 So to use an ActivityStreams Video, you'd write
 ```rust
 use activitystreams_new::object::Video;
 let video = Video::builder().finish();
 ```
 And to use an ActivityPub profile, you'd write
 ```rust
 use activitystreams_new::object::{ApObject, Profile};
 let inner = Profile::builder().finish();
 let profile = ApObject::builder()
    .inner(inner)
    .finish();
 ```
 There's only one kind of Link
 ```rust
 use activitystreams_new::link::Mention;
 let mention = Mention::builder().finish();
 ```
 ### Fields
 Many fields on the provided types are wrapped in `OneOrMany<>` or have a type of `AnyBase`. This
 is because the activitystreams spec is very open as to what is considered a valid structure.
 For example, the Object type in ActivityStreams has a `summary` field, which can either be
 represented as an `xsd:string` or an `rdf:langString`. It also states that the `summary` field
 is not `functional`, meaning that any number of `xsd:string` or `rdf:langString`, or a
 combination thereof, can be present. This library represents this as `Option<OneOrMany<AnyString>>`.
 This resulting type is exactly specific enough to match the following valid ActivityStreams
 json, without matching any invalid json.
 With no summary:
 ```json
 {}
 ```
 With a sring summary:
 ```json
 {
    "summary": "A string"
 }
 ```
 With an rdf langstring
 ```json
 {
    "summary": {
        "@value": "A string",
        "@language": "en"
    }
 }
 ```
 With multiple values
 ```json
 {
    "summary": [
        {
            "@value": "A string",
            "@language": "en"
        },
        "An xsd:string this time"
    ]
 }
 ```
 It may seem like interacting with these types might get unweildy, there are some custom methods
 implemented on the `OneOrMany` type depending on what's inside of it.
 ```rust
 fn from_xsd_string<T>(&mut self, T) -> Self;
 fn from_rdf_lang_string<T>(&mut self, T) -> Self;
 fn as_single_xsd_string(&self) -> Option<&XsdString>;
 fn as_single_rdf_langstring(&self) -> Option<&RdfLangString>;
 fn single_xsd_string(self) -> Option<XsdString>;
 fn single_rdf_lang_string(self) -> Option<RdfLangString>;
 fn add_xsd_string<T>(&mut self, T) -> &mut Self;
 fn add_rdf_lang_string<T>(&mut self, T) -> &mut Self;
 ```
 These methods provide access to setting and fetching uniformly typed data, as well as deleting
 the data. In the setter methods, the type parameter T is bound by
 `Into<XsdString>` or `Into<RdfLangString>`. This allows passing values to the method that
 can be converted into the types, rather than requiring the caller to perform the conversion.
 Types like `XsdString` and `RdfLangString` can be found in the `primitives` module. Unless
 you're building your own custom types, you shouldn't need to import them yourself. They each
 implement `FromStr` for parsing and `Display` to convert back to strings, as well as `From` and
 `Into` or `TryFrom` and `TryInto` for types you might expect them to (e.g.
 `XsdNonNegativeInteger` implements `From<u64>` and `Into<u64>`).
 ### Traits
 Since ActivityStreams is a heirarchical structure of data, it's represented as structs containing
 other structs. This means that the `context` field, which can be present on any ActivityStreams type,
 will be located in the innermost struct. In order to avoid writing code like
 `ap_object.collection.object.base.context = Some(context())`, this library provides traits that are
 automatically implmeneted for provided types.
 For example, the `BaseExt` trait provides the following methods for `context`,
 ```rust
 fn context(&self) -> Option<&OneOrMany<AnyBase>>;
 fn set_context<T>(&mut self, context: T) -> &mut Self
 where
    T: Into<AnyBase>;
 fn set_many_contexts<I, T>(&mut self, items: I) -> &mut Self
 where
    I: IntoIterator<Item = T>,
    T: Into<AnyBase>;
 fn add_context<T>(&mut self, context: T) -> &mut Self
 where
    T: Into<AnyBase>;
 fn take_context(&mut self) -> Option<OneOrMany<AnyBase>>;
 fn delete_context(&mut self) -> &mut Self;
 ```
 For fields with more specific bounds, like `id`,
 ```rust
 fn id(&self) -> Option<&XsdAnyUri>;
 fn set_id(&mut self, XsdAnyUri) -> &mut Self;
 fn take_id(&self) -> Option<XsdAnyUri>;
 fn delete_id(&mut self) -> &mut Self;
 ```
 The full list of extension traits that implement methods like these on types can be found in the
 prelude module. By using `use activitystreams_new::prelude::*;` all of the methods will be
 implemented for types containing their fields.
 ### Markers
 This library provides a number of traits, such as `Object`, `Link`, `Actor`, `Activity`,
 `Collection`, and `CollectionPage`. The majority of these traits exist solely to "mark" types,
 meaning they don't provide value, at runtime, but exist to add constraints to generics at
 compiletime.
 If you want to make a function that manipulates an Activity, but not a normal object, you could
 bound the function like so:
 ```rust
 fn manipulator<T>(activity: T) -> Result<&mut ObjectProperties, SomeErrorType>
 where
    T: Activity + BaseExt,
 {
    activity
        .set_id("https://example.com".parse()?)
        .set_context(context())
 }
 ```
 ### Kinds
 This library has a set of unit structs that serialize and deserialize to strings. This is to
 enable different ActivityPub Object types to be deserialized into different Named structs.
 These can be found in `activitystreams_new::objects::kind`, and similar paths.
 To build your own Person struct, for example, you could write
 ```rust
 use activitystreams_new::actor::kind::PersonType;
 #[derive(serde::Deserialize, serde::Serialize)]
 pub struct MyPerson {
    // Do a rename since `type` is not a valid rust field name
    #[serde(rename = "type")]
    kind: PersonType,
 }
 ```
 And this type would only deserialize for JSON where `"type":"Person"`
 ## Examples
 ### Basic
 ```rust
 use activitystreams_new::{
    context,
    object::{ApObject, Video},
    prelude::*,
    primitives::{XsdAnyUri, XsdString},
 };
 fn main() -> Result<(), anyhow::Error> {
    let mut video: ApObject<Video> = ApObject::default();
    video
        .set_context(context())
        .set_id("https://example.com/@example/lions".parse()?)
        .set_media_type("video/webm".parse()?)
        .set_url("https://example.com/@example/lions/video.webm".parse::<XsdAnyUri>()?)
        .set_summary(XsdString::from("A cool video"))
        .set_duration("PT4M20S".parse()?)
        .set_shares("https://example.com/@example/lions/video.webm#shares".parse()?);
    println!("Video, {:#?}", video);
    let s = serde_json::to_string(&video)?;
    println!("json, {}", s);
    let v: ApObject<Video> = serde_json::from_str(&s)?;
    println!("Video again, {:#?}", v);
    Ok(())
 }
 ```
 ## Contributing
 Feel free to open issues for anything you find an issue with. Please note that any contributed code will be licensed under the GPLv3.
 ## License
 Copyright © 2020 Riley Trautman
 ActivityStreams is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 ActivityStreams is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. This file is part of ActivityStreams.
 You should have received a copy of the GNU General Public License along with ActivityStreams. If not, see [http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
--- a/examples/basic.rs
+++ b/examples/basic.rs
@ -1,24 +1,25 @@
 use activitystreams_new::{
    context,
    object::{ApObject, Video},
    prelude::*,
    primitives::{XsdAnyUri, XsdString},
 };
-fn main() -> Result<(), Box<dyn std::error::Error>> {
+fn main() -> Result<(), anyhow::Error> {
-    let video = Video::builder()
+    let mut video: ApObject<Video> = ApObject::default();
        .context(context())
        .id("https://example.com/@example/lions".parse::<XsdAnyUri>()?)
        .url("https://example.com/@example/lions/video.webm".parse::<XsdAnyUri>()?)
        .summary(XsdString::from("A cool video"))
        .media_type("video/webm".parse()?)
        .duration("PT4M20S".parse()?)
        .build();
-    let v = ApObject::builder().inner(video).build();
+    video
        .set_context(context())
        .set_id("https://example.com/@example/lions".parse()?)
        .set_media_type("video/webm".parse()?)
        .set_url("https://example.com/@example/lions/video.webm".parse::<XsdAnyUri>()?)
        .set_summary(XsdString::from("A cool video"))
        .set_duration("PT4M20S".parse()?)
        .set_shares("https://example.com/@example/lions/video.webm#shares".parse()?);
-    println!("Video, {:#?}", v);
+    println!("Video, {:#?}", video);
-    let s = serde_json::to_string(&v)?;
+    let s = serde_json::to_string(&video)?;
    println!("json, {}", s);
--- a/examples/de.rs
+++ b/examples/de.rs
@ -2,7 +2,6 @@ use activitystreams_new::{
    collection::OrderedCollection,
    object::{ApObject, Page},
    prelude::*,
    traits::Extends,
 };
 use anyhow::Error;
@ -53,14 +52,14 @@ fn main() -> Result<(), Error> {
        .many()
        .into_iter()
        .flatten()
-        .filter_map(|any_object| any_object.object())
+        .filter_map(|any_base| any_base.take_base())
-        .map(|object| object.solidify().and_then(|o| o.extend()))
+        .map(|base| base.solidify().and_then(|o| o.extend()))
        .collect::<Result<Vec<_>, _>>()?;
    println!("{:#?}", v);
    let v = v
        .into_iter()
-        .map(|o| o.retracts().and_then(|o| o.into_generic()))
+        .map(|o| o.into_any_base())
        .collect::<Result<Vec<_>, _>>()?;
    collection.set_many_items(v);
--- a/src/base.rs
+++ b/src/base.rs
@ -1,3 +1,32 @@
 //! Types and traits for dealing with the base attributes common to all ActivityStreams Objects and
 //! Links
 //!
 //! ```rust
 //! # fn main() -> Result<(), anyhow::Error> {
 //! use activitystreams_new::{
 //!     context,
 //!     object::Video,
 //!     prelude::*,
 //!     primitives::XsdString,
 //!     security,
 //! };
 //! let mut video = Video::default();
 //!
 //! video
 //!     .set_id("https://example.com".parse()?)
 //!     .set_context(context())
 //!     .add_context(security())
 //!     .set_name(XsdString::from("Hello"));
 //!
 //! let any_base = video.into_any_base()?;
 //!
 //! let mut new_video = Video::default();
 //!
 //! new_video.set_preview(any_base);
 //! #
 //! # Ok(())
 //! # }
 //! ```
 use crate::{
    either::Either,
    markers,
@ -6,20 +35,100 @@ use crate::{
 };
 use typed_builder::TypedBuilder;
 /// Implements conversion between Base<Kind> and other ActivityStreams objects defined in this
 /// crate
 pub trait Extends<Kind>: Sized {
    /// The erro produced must be a StdError
    type Error: std::error::Error;
    /// Produce an object from the Base
    fn extends(base: Base<Kind>) -> Result<Self, Self::Error>;
    /// Produce a base from the object
    fn retracts(self) -> Result<Base<Kind>, Self::Error>;
 }
 /// A helper function implemented for all Extends types to easily produce an AnyBase from a given
 /// object.
 ///
 /// This is important because many APIs in this crate deal with AnyBases.
 pub trait ExtendsExt<Kind>: Extends<Kind> {
    /// Create an AnyBase from the given object
    ///
    /// ```rust
    /// # fn main() -> Result<(), anyhow::Error> {
    /// use activitystreams_new::{object::Video, prelude::*};
    /// let video = Video::default();
    ///
    /// let any_base = video.into_any_base()?;
    /// #
    /// # Ok(())
    /// # }
    /// ```
    fn into_any_base(self) -> Result<AnyBase, Self::Error>
    where
        Kind: serde::ser::Serialize,
        Self::Error: From<serde_json::Error>,
    {
        AnyBase::from_extended(self)
    }
    /// Create an object from an AnyBase
    ///
    /// Before calling this, make sure the `AnyBase::is_base()` and `AnyBase::kind` match your
    /// expectations
    ///
    /// ```rust
    /// # fn main() -> Result<(), anyhow::Error> {
    /// use activitystreams_new::{object::Video, prelude::*};
    /// # let video = Video::default();
    /// # let any_base = video.into_any_base()?;
    /// let video = Video::from_any_base(any_base)?;
    /// #
    /// # Ok(())
    /// # }
    /// ```
    fn from_any_base(any_base: AnyBase) -> Result<Option<Self>, Self::Error>
    where
        Kind: serde::de::DeserializeOwned,
        Self::Error: From<serde_json::Error>,
    {
        if let Some(base) = any_base.take_base() {
            let my_base = base.solidify()?;
            let extended = my_base.extend::<Self>()?;
            return Ok(Some(extended));
        }
        Ok(None)
    }
 }
 /// Implementation trait for deriving Base methods for a type
 ///
 /// Any type Implementating AsBase will automatically gain methods provided by BaseExt
 pub trait AsBase<Kind>: markers::Base {
    fn base_ref(&self) -> &Base<Kind>;
    fn base_mut(&mut self) -> &mut Base<Kind>;
 }
 /// Helper methods for interacting with Base types
 ///
 /// This trait represents methods valid for Any ActivityStreams type, regardless of whether it's a
 /// Link or an Object.
 ///
 /// Documentation for the fields related to these methods can be found on the `Base` struct
 pub trait BaseExt<Kind>: AsBase<Kind> {
    /// Fetch the context for the current object
    ///
    /// ```rust
    /// # use activitystreams_new::object::Video;
    /// # let video = Video::default();
    /// #
    /// use activitystreams_new::prelude::*;
    ///
    /// let video_context = video.context();
    /// ```
    fn context<'a>(&'a self) -> Option<&'a OneOrMany<AnyBase>>
    where
        Kind: 'a,
@ -27,6 +136,18 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self.base_ref().context.as_ref()
    }
    /// Set the context for the current object
    ///
    /// This overwrites the contents of context
    ///
    /// ```rust
    /// # use activitystreams_new::object::Video;
    /// # let mut video = Video::default();
    /// #
    /// use activitystreams_new::{context, prelude::*};
    ///
    /// video.set_context(context());
    /// ```
    fn set_context<T>(&mut self, context: T) -> &mut Self
    where
        T: Into<AnyBase>,
@ -35,6 +156,18 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Set many contexts for the current object
    ///
    /// This overwrites the contents of context
    ///
    /// ```rust
    /// # use activitystreams_new::object::Video;
    /// # let mut video = Video::default();
    /// #
    /// use activitystreams_new::{context, prelude::*, security};
    ///
    /// video.set_many_contexts(vec![context(), security()]);
    /// ```
    fn set_many_contexts<I, T>(&mut self, items: I) -> &mut Self
    where
        I: IntoIterator<Item = T>,
@ -45,6 +178,20 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Add a context to the current object
    ///
    /// This does not overwrite the contents of context, only appends a new item
    ///
    /// ```rust
    /// # use activitystreams_new::object::Video;
    /// # let mut video = Video::default();
    /// #
    /// use activitystreams_new::{context, prelude::*, security};
    ///
    /// video
    ///     .add_context(context())
    ///     .add_context(security());
    /// ```
    fn add_context<T>(&mut self, context: T) -> &mut Self
    where
        T: Into<AnyBase>,
@ -60,15 +207,41 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Take the context from the current object, leaving nothing
    ///
    /// ```rust
    /// # use activitystreams_new::object::Video;
    /// # let mut video = Video::default();
    /// #
    /// use activitystreams_new::prelude::*;
    ///
    /// if let Some(context) = video.take_context() {
    ///     println!("{:?}", context);
    /// }
    /// ```
    fn take_context(&mut self) -> Option<OneOrMany<AnyBase>> {
        self.base_mut().context.take()
    }
    /// Delete the context from the current object
    ///
    /// ```rust
    /// # use activitystreams_new::{context, object::Video};
    /// # let mut video = Video::default();
    /// # video.set_context(context());
    /// #
    /// use activitystreams_new::prelude::*;
    ///
    /// assert!(video.context().is_some());
    /// video.delete_context();
    /// assert!(video.context().is_none());
    /// ```
    fn delete_context(&mut self) -> &mut Self {
        self.base_mut().context = None;
        self
    }
    /// Fetch the id for the current object
    fn id<'a>(&'a self) -> Option<&'a XsdAnyUri>
    where
        Kind: 'a,
@ -76,20 +249,26 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self.base_ref().id.as_ref()
    }
    /// Set the id for the current object
    ///
    /// This overwrites the contents of id
    fn set_id(&mut self, id: XsdAnyUri) -> &mut Self {
        self.base_mut().id = Some(id);
        self
    }
    /// Take the id from the current object, leaving nothing
    fn take_id(&mut self) -> Option<XsdAnyUri> {
        self.base_mut().id.take()
    }
    /// Delete the id from the current object
    fn delete_id(&mut self) -> &mut Self {
        self.base_mut().id = None;
        self
    }
    /// Fetch the kind for the current object
    fn kind<'a>(&'a self) -> Option<&'a Kind>
    where
        Kind: 'a,
@ -97,20 +276,26 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self.base_ref().kind.as_ref()
    }
    /// Set the kind for the current object
    ///
    /// This overwrites the contents of kind
    fn set_kind(&mut self, kind: Kind) -> &mut Self {
        self.base_mut().kind = Some(kind);
        self
    }
    /// Take the kind from the current object, leaving nothing
    fn take_kind(&mut self) -> Option<Kind> {
        self.base_mut().kind.take()
    }
    /// Delete the kind from the current object
    fn delete_kind(&mut self) -> &mut Self {
        self.base_mut().kind = None;
        self
    }
    /// Fetch the name for the current object
    fn name<'a>(&'a self) -> Option<&'a OneOrMany<AnyString>>
    where
        Kind: 'a,
@ -118,6 +303,9 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self.base_ref().name.as_ref()
    }
    /// Set the name for the current object
    ///
    /// This overwrites the contents of name
    fn set_name<T>(&mut self, name: T) -> &mut Self
    where
        T: Into<AnyString>,
@ -126,6 +314,9 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Set many names for the current object
    ///
    /// This overwrites the contents of name
    fn set_many_names<I, T>(&mut self, items: I) -> &mut Self
    where
        I: IntoIterator<Item = T>,
@ -136,6 +327,9 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Add a name to the current object
    ///
    /// This does not overwrite the contents of name, only appends a new item
    fn add_name<T>(&mut self, name: T) -> &mut Self
    where
        T: Into<AnyString>,
@ -151,15 +345,18 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Take the name from the current object, leaving nothing
    fn take_name(&mut self) -> Option<OneOrMany<AnyString>> {
        self.base_mut().name.take()
    }
    /// Delete the name from the current object
    fn delete_name(&mut self) -> &mut Self {
        self.base_mut().name = None;
        self
    }
    /// Fetch the media type for the current object
    fn media_type<'a>(&'a self) -> Option<&'a MimeMediaType>
    where
        Kind: 'a,
@ -167,20 +364,26 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self.base_ref().media_type.as_ref()
    }
    /// Set the media type for the current object
    ///
    /// This overwrites the contents of media_type
    fn set_media_type(&mut self, media_type: MimeMediaType) -> &mut Self {
        self.base_mut().media_type = Some(media_type);
        self
    }
    /// Take the media type from the current object, leaving nothing
    fn take_media_type(&mut self) -> Option<MimeMediaType> {
        self.base_mut().media_type.take()
    }
    /// Delete the media type from the current object
    fn delete_media_type(&mut self) -> &mut Self {
        self.base_mut().media_type = None;
        self
    }
    /// Fetch the preview for the current object
    fn preview<'a>(&'a self) -> Option<&'a OneOrMany<AnyBase>>
    where
        Kind: 'a,
@ -188,6 +391,9 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self.base_ref().preview.as_ref()
    }
    /// Set the preview for the current object
    ///
    /// This overwrites the contents of preview
    fn set_preview<T>(&mut self, preview: T) -> &mut Self
    where
        T: Into<AnyBase>,
@ -196,6 +402,9 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Set many previews for the current object
    ///
    /// This overwrites the contents of preview
    fn set_many_previews<I, T>(&mut self, items: I) -> &mut Self
    where
        I: IntoIterator<Item = T>,
@ -206,6 +415,9 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Add a preview to the current object
    ///
    /// This does not overwrite the contents of preview, only appends an item
    fn add_preview<T>(&mut self, preview: T) -> &mut Self
    where
        T: Into<AnyBase>,
@ -221,10 +433,12 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
        self
    }
    /// Take the preview from the current object, leaving nothing
    fn take_preview(&mut self) -> Option<OneOrMany<AnyBase>> {
        self.base_mut().preview.take()
    }
    /// Delete the preview from the current object
    fn delete_preview(&mut self) -> &mut Self {
        self.base_mut().preview = None;
        self
@ -235,45 +449,125 @@ pub trait BaseExt<Kind>: AsBase<Kind> {
 #[serde(transparent)]
 struct IdOrBase(Either<XsdAnyUri, Box<Base<serde_json::Value>>>);
 /// A type that can represent Any ActivityStreams type
 ///
 /// A type in activitystreams can be four things
 /// - An Object
 /// - A Link
 /// - The ID of that Link or Object
 /// - A string representing that Link or Object
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
 #[serde(transparent)]
 pub struct AnyBase(Either<IdOrBase, XsdString>);
 /// A representation of the common fields between Links and Objects in ActivityStreams
 ///
 /// Although the spec does not define a type more abstract that Object or Link, it does define
 /// fields present in both, so for the sake of "Everything derives from something," I've
 /// implemented a type.
 #[derive(Clone, Debug, Default, serde::Deserialize, serde::Serialize, TypedBuilder)]
 #[serde(rename_all = "camelCase")]
 #[builder(doc)]
 pub struct Base<Kind> {
    /// Identifies the context within which the object exists or an activity was performed.
    ///
    /// The notion of "context"used is intentionally vague. The intended function is to serve as a
    /// means of grouping objects and activities that share a common originating context or
    /// purpose. An example could be all activities relating to a common project or event.
    ///
    /// - Range: Object | Link
    /// - Functional: false
    #[serde(rename = "@context")]
    #[serde(alias = "context")]
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(strip_option, into))]
    pub context: Option<OneOrMany<AnyBase>>,
    /// Provides the globally unique identifier for an Object or Link.
    ///
    /// The id property is expressed as an absolute IRI in the spec, but for now is represented as
    /// a string.
    ///
    /// - Range: xsd:anyUri
    /// - Functional: true
    ///
    /// ### From ActivityStreams's deprecation notes
    ///
    /// When processing Activity Streams 1.0 documents and converting those to 2.0, implementations
    /// ought to treat id as an alias for the JSON-LD @id key word[.]
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(strip_option, into))]
    pub id: Option<XsdAnyUri>,
    /// The `type` field
    ///
    /// ### From JSON-LD's `type` documentation
    ///
    /// This section is non-normative.
    ///
    /// In Linked Data, it is common to specify the type of a graph node; in many cases, this can
    /// be inferred based on the properties used within a given node object, or the property for
    /// which a node is a value. For example, in the schema.org vocabulary, the givenName property
    /// is associated with a Person. Therefore, one may reason that if a node object contains the
    /// property givenName, that the type is a Person; making this explicit with @type helps to
    /// clarify the association.
    ///
    /// The type of a particular node can be specified using the @type keyword. In Linked Data,
    /// types are uniquely identified with an IRI.
    ///
    /// ### From ActivityStreams's deprecation notes
    ///
    /// When processing Activity Streams 1.0 documents and converting those to 2.0, implementations
    /// ought to treat [...] the objectType and verb properties as aliases for the JSON-LD @type
    /// keyword.
    #[serde(rename = "type")]
    #[serde(alias = "@type")]
    #[serde(alias = "objectType")]
    #[serde(alias = "verb")]
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(strip_option))]
    pub kind: Option<Kind>,
    /// A simple, human-readable, plain-text name for the object.
    ///
    /// HTML markup MUST NOT be included. The name MAY be expressed using multiple language-tagged values.
    ///
    /// - Range: xsd:string | rdf:langString
    /// - Functional: false
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(strip_option, into))]
    pub name: Option<OneOrMany<AnyString>>,
    /// When used on an Object, identifies the MIME media type of the value of the content property.
    ///
    /// If not specified, the content property is assumed to contain text/html content.
    ///
    /// - Range: Mime Media Type
    /// - Functional: true
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(strip_option))]
    pub media_type: Option<MimeMediaType>,
    /// Identifies an entity that provides a preview of this object.
    ///
    /// - Range: Object | Link
    /// - Functional: false
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(strip_option, into))]
    pub preview: Option<OneOrMany<AnyBase>>,
    /// Any additional data present on the object if parsed from JSON
    ///
    /// This is used to extend the Base into other kinds of objects and links
    #[serde(flatten)]
    #[builder(default)]
    pub unparsed: Unparsed,
 }
 impl Base<serde_json::Value> {
    /// Convert this Base<serde_json::Value> into a Base<Kind>
    ///
    /// This is required before extending Base into the other types found in this crate
    pub fn solidify<Kind>(self) -> Result<Base<Kind>, serde_json::Error>
    where
        Kind: serde::de::DeserializeOwned,
@ -283,6 +577,18 @@ impl Base<serde_json::Value> {
 }
 impl<Kind> Base<Kind> {
    /// Extend the Base into any other ActivityStreams type provided in this crate
    ///
    /// ```rust
    /// # fn main() -> Result<(), anyhow::Error> {
    /// #   use activitystreams_new::{base::Base, object::{Video, kind::VideoType}};
    /// #   let base = Base::<VideoType>::default();
    /// #
    /// let video = base.extend::<Video>()?;
    /// #
    /// #   Ok(())
    /// # }
    /// ```
    pub fn extend<T>(self) -> Result<T, T::Error>
    where
        T: Extends<Kind>,
@ -290,6 +596,18 @@ impl<Kind> Base<Kind> {
        T::extends(self)
    }
    /// Retract any other ActivityStreams type into a Base<Kind>
    ///
    /// ```rust
    /// # fn main() -> Result<(), anyhow::Error> {
    /// #   use activitystreams_new::{base::Base, object::Video};
    /// #   let video = Video::default();
    /// #
    /// let base = Base::retract(video)?;
    /// #
    /// #   Ok(())
    /// # }
    /// ```
    pub fn retract<T>(t: T) -> Result<Self, T::Error>
    where
        T: Extends<Kind>,
@ -297,6 +615,9 @@ impl<Kind> Base<Kind> {
        t.retracts()
    }
    /// Convert this Base into a Base<serde_json::Value>
    ///
    /// This is required before putting a Base into an AnyBase type
    pub fn into_generic(self) -> Result<Base<serde_json::Value>, serde_json::Error>
    where
        Kind: serde::ser::Serialize,
@ -304,6 +625,22 @@ impl<Kind> Base<Kind> {
        self.try_map_kind(serde_json::to_value)
    }
    /// An inffalible conversion from Base<T> to Base<U> where there is a known path from T to U
    ///
    /// ```rust
    /// use activitystreams_new::{base::Base, prelude::*};
    ///
    /// let mut base = Base::<String>::default();
    /// base.set_kind("Hey".to_owned());
    ///
    /// let new_base = base.map_kind(|kind| match kind.as_str() {
    ///     "Create" => 1,
    ///     "Update" => 5,
    ///     _ => 0,
    /// });
    ///
    /// assert!(*new_base.kind().unwrap() == 0);
    /// ```
    pub fn map_kind<NewKind>(self, f: impl Fn(Kind) -> NewKind) -> Base<NewKind> {
        Base {
            kind: self.kind.map(f),
@ -316,6 +653,7 @@ impl<Kind> Base<Kind> {
        }
    }
    /// A fallible conversion from Base<T> to Base<U>
    pub fn try_map_kind<NewKind, E>(
        self,
        f: impl Fn(Kind) -> Result<NewKind, E>,
@ -337,50 +675,107 @@ impl<Kind> Base<Kind> {
 }
 impl AnyBase {
    /// Convert any type that is extended from Base<Kind> into an AnyBase for storing
    pub fn from_extended<T, Kind>(extended: T) -> Result<Self, T::Error>
    where
        T: Extends<Kind>,
        T::Error: From<serde_json::Error>,
        Kind: serde::ser::Serialize,
    {
        Ok(Base::retract(extended)?.into_generic()?.into())
    }
    /// Check if this object is an XsdAnyUri
    pub fn is_xsd_any_uri(&self) -> bool {
        self.0
            .as_ref()
            .left()
            .and_then(|l| l.as_xsd_any_uri())
            .is_some()
    }
    /// Check if this object is an XsdString
    pub fn is_xsd_string(&self) -> bool {
        self.0.as_ref().right().is_some()
    }
    /// Check if this object is a Base<serde_json::Value>
    pub fn is_base(&self) -> bool {
        self.0.as_ref().left().and_then(|l| l.as_base()).is_some()
    }
    /// Get the id from the current object
    ///
    /// This method checks if the current object _is_ an ID, and then falls back on the `id` field
    /// within the `Base<serde_json::Value>` if that exists
    pub fn id(&self) -> Option<&XsdAnyUri> {
        self.as_xsd_any_uri()
            .or_else(|| self.as_base().and_then(|base| base.id.as_ref()))
    }
    /// Get the kind from the current object
    ///
    /// This method only produces a value if the current object is a `Base<serde_json::Value>`
    pub fn kind(&self) -> Option<&serde_json::Value> {
        self.as_base().and_then(|base| base.kind.as_ref())
    }
    /// Get the object as an XsdAnyUri
    pub fn as_xsd_any_uri(&self) -> Option<&XsdAnyUri> {
        self.0.as_ref().left().and_then(|l| l.as_xsd_any_uri())
    }
    /// Get the object as an XsdString
    pub fn as_xsd_string(&self) -> Option<&XsdString> {
        self.0.as_ref().right()
    }
    /// Get the object as a Base<serde_json::Value>
    pub fn as_base(&self) -> Option<&Base<serde_json::Value>> {
        self.0.as_ref().left().and_then(|l| l.as_base())
    }
-    pub fn id(self) -> Option<XsdAnyUri> {
+    /// Take the XsdAnyUri from the Object
    pub fn take_xsd_any_uri(self) -> Option<XsdAnyUri> {
        self.0.left().and_then(|l| l.id())
    }
-    pub fn xsd_string(self) -> Option<XsdString> {
+    /// Take the XsdString from the Object
    pub fn take_xsd_string(self) -> Option<XsdString> {
        self.0.right()
    }
-    pub fn base(self) -> Option<Base<serde_json::Value>> {
+    /// Take the Base<serde_json::Value> from the Object
    pub fn take_base(self) -> Option<Base<serde_json::Value>> {
        self.0.left().and_then(|l| l.base())
    }
    /// Replace the object with the provided XsdAnyUri
    pub fn set_xsd_any_uri(&mut self, id: XsdAnyUri) {
        self.0 = Either::Left(IdOrBase::from_xsd_any_uri(id));
    }
    /// Replace the object with the provided Base<serde_json::Value>
    pub fn set_base(&mut self, base: Base<serde_json::Value>) {
        self.0 = Either::Left(IdOrBase::from_base(base));
    }
    /// Replace the object with the provided XsdString
    pub fn set_xsd_string(&mut self, xsd_string: XsdString) {
        self.0 = Either::Right(xsd_string);
    }
    /// Create an AnyBase from an XsdAnyUri
    pub fn from_xsd_any_uri(id: XsdAnyUri) -> Self {
        AnyBase(Either::Left(IdOrBase::from_xsd_any_uri(id)))
    }
    /// Create an AnyBase from a Base<serde_json::Value>
    pub fn from_base(base: Base<serde_json::Value>) -> Self {
        AnyBase(Either::Left(IdOrBase::from_base(base)))
    }
    /// Create an AnyBase from an XsdString
    pub fn from_xsd_string(xsd_string: XsdString) -> Self {
        AnyBase(Either::Right(xsd_string))
    }
@ -413,65 +808,80 @@ impl IdOrBase {
 }
 impl OneOrMany<AnyBase> {
    /// Get a single XsdAnyUri from the object, if that is what is contained
    pub fn as_single_xsd_any_uri(&self) -> Option<&XsdAnyUri> {
        self.as_one().and_then(|inner| inner.as_xsd_any_uri())
    }
    /// Get a single XsdString from the object, if that is what is contained
    pub fn as_single_xsd_string(&self) -> Option<&XsdString> {
        self.as_one().and_then(|inner| inner.as_xsd_string())
    }
    /// Get a single Base<serde_json::Value> from the object, if that is what is contained
    pub fn as_single_base(&self) -> Option<&Base<serde_json::Value>> {
        self.as_one().and_then(|inner| inner.as_base())
    }
    /// Take a single XsdAnyUri from the object, if that is what is contained
    pub fn single_xsd_any_uri(self) -> Option<XsdAnyUri> {
-        self.one().and_then(|inner| inner.id())
+        self.one().and_then(|inner| inner.take_xsd_any_uri())
    }
    /// Take a single XsdString from the object, if that is what is contained
    pub fn single_xsd_string(self) -> Option<XsdString> {
-        self.one().and_then(|inner| inner.xsd_string())
+        self.one().and_then(|inner| inner.take_xsd_string())
    }
    /// Take a single Base<serde_json::Value> from the object, if that is what is contained
    pub fn single_base(self) -> Option<Base<serde_json::Value>> {
-        self.one().and_then(|inner| inner.base())
+        self.one().and_then(|inner| inner.take_base())
    }
    /// Create a OneOrMany<AnyBase> from an XsdAnyUri
    pub fn from_xsd_any_uri(id: XsdAnyUri) -> Self {
        OneOrMany(Either::Left(AnyBase::from_xsd_any_uri(id)))
    }
    /// Create a OneOrMany<AnyBase> from an XsdString
    pub fn from_xsd_string(xsd_string: XsdString) -> Self {
        OneOrMany(Either::Left(AnyBase::from_xsd_string(xsd_string)))
    }
    /// Create a OneOrMany<AnyBase> from a Base<serde_json::Value>
    pub fn from_base(base: Base<serde_json::Value>) -> Self {
        OneOrMany(Either::Left(AnyBase::from_base(base)))
    }
    /// Overwrite the current object with an XsdAnyUri
    pub fn set_single_xsd_any_uri(&mut self, id: XsdAnyUri) -> &mut Self {
        self.0 = Either::Left(AnyBase::from_xsd_any_uri(id));
        self
    }
    /// Overwrite the current object with an XsdString
    pub fn set_single_xsd_string(&mut self, xsd_string: XsdString) -> &mut Self {
        self.0 = Either::Left(AnyBase::from_xsd_string(xsd_string));
        self
    }
    /// Overwrite the current object with a Base<serde_json::Value>
    pub fn set_single_base(&mut self, base: Base<serde_json::Value>) -> &mut Self {
        self.0 = Either::Left(AnyBase::from_base(base));
        self
    }
    /// Append an XsdAnyUri to the current object
    pub fn add_xsd_any_uri(&mut self, id: XsdAnyUri) -> &mut Self {
        self.add(AnyBase::from_xsd_any_uri(id))
    }
    /// Append an XsdString to the current object
    pub fn add_xsd_string(&mut self, xsd_string: XsdString) -> &mut Self {
        self.add(AnyBase::from_xsd_string(xsd_string))
    }
    /// Append a Base<serde_json::Value> to the current object
    pub fn add_base(&mut self, base: Base<serde_json::Value>) -> &mut Self {
        self.add(AnyBase::from_base(base))
    }
@ -495,6 +905,12 @@ impl<Kind> AsBase<Kind> for Base<Kind> {
    }
 }
 impl<T, Kind> ExtendsExt<Kind> for T
 where
    T: Extends<Kind>,
    T::Error: From<serde_json::Error>,
 {
 }
 impl<T, Kind> BaseExt<Kind> for T where T: AsBase<Kind> {}
 impl From<Base<serde_json::Value>> for AnyBase {
--- a/src/lib.rs
+++ b/src/lib.rs
@ -23,7 +23,7 @@ pub mod prelude {
            QuestionExt, TargetRefExt,
        },
        actor::ApActorExt,
-        base::BaseExt,
+        base::{BaseExt, ExtendsExt},
        collection::{CollectionExt, CollectionPageExt, OrderedCollectionPageExt},
        link::LinkExt,
        object::{ApObjectExt, ObjectExt, PlaceExt, ProfileExt, RelationshipExt, TombstoneExt},
--- a/src/primitives.rs
+++ b/src/primitives.rs
@ -34,28 +34,28 @@ impl AnyString {
    pub fn from_xsd_string<T>(string: T) -> Self
    where
-        XsdString: From<T>,
+        T: Into<XsdString>,
    {
        AnyString(Either::Left(string.into()))
    }
    pub fn from_rdf_lang_string<T>(string: T) -> Self
    where
-        RdfLangString: From<T>,
+        T: Into<RdfLangString>,
    {
        AnyString(Either::Right(string.into()))
    }
    pub fn set_xsd_string<T>(&mut self, string: T)
    where
-        XsdString: From<T>,
+        T: Into<XsdString>,
    {
        self.0 = Either::Left(string.into());
    }
    pub fn set_rdf_lang_string<T>(&mut self, string: T)
    where
-        RdfLangString: From<T>,
+        T: Into<RdfLangString>,
    {
        self.0 = Either::Right(string.into());
    }
@ -83,17 +83,31 @@ impl OneOrMany<AnyString> {
    pub fn from_xsd_string<T>(string: T) -> Self
    where
-        XsdString: From<T>,
+        T: Into<XsdString>,
    {
        Self::from_one(AnyString::from_xsd_string(string))
    }
    pub fn from_rdf_lang_string<T>(string: T) -> Self
    where
-        RdfLangString: From<T>,
+        T: Into<RdfLangString>,
    {
        Self::from_one(AnyString::from_rdf_lang_string(string))
    }
    pub fn add_xsd_string<T>(&mut self, string: T) -> &mut Self
    where
        T: Into<XsdString>,
    {
        self.add(string.into())
    }
    pub fn add_rdf_lang_string<T>(&mut self, string: T) -> &mut Self
    where
        T: Into<RdfLangString>,
    {
        self.add(string.into())
    }
 }
 impl<T> OneOrMany<T> {
@ -130,7 +144,7 @@ impl<T> OneOrMany<T> {
    pub fn set_one<U>(&mut self, u: U) -> &mut Self
    where
-        T: From<U>,
+        U: Into<T>,
    {
        self.0 = Either::Left(u.into());
        self
@ -138,15 +152,15 @@ impl<T> OneOrMany<T> {
    pub fn set_many<U>(&mut self, items: impl IntoIterator<Item = U>) -> &mut Self
    where
-        T: From<U>,
+        U: Into<T>,
    {
-        self.0 = Either::Right(items.into_iter().map(T::from).collect());
+        self.0 = Either::Right(items.into_iter().map(Into::into).collect());
        self
    }
    pub fn add<U>(&mut self, u: U) -> &mut Self
    where
-        T: From<U>,
+        U: Into<T>,
    {
        let mut v = match std::mem::replace(&mut self.0, Either::Right(vec![])) {
            Either::Left(one) => vec![one],
@ -159,13 +173,13 @@ impl<T> OneOrMany<T> {
    pub fn add_many<U>(&mut self, items: impl IntoIterator<Item = U>) -> &mut Self
    where
-        T: From<U>,
+        U: Into<T>,
    {
        let mut v = match std::mem::replace(&mut self.0, Either::Right(vec![])) {
            Either::Left(one) => vec![one],
            Either::Right(v) => v,
        };
-        v.extend(items.into_iter().map(T::from));
+        v.extend(items.into_iter().map(Into::into));
        self.0 = Either::Right(v);
        self
    }
--- a/src/unparsed.rs
+++ b/src/unparsed.rs
@ -14,8 +14,12 @@ pub trait UnparsedMutExt: UnparsedMut {
    where
        T: serde::ser::Serialize,
    {
-        self.unparsed_mut()
+        let value = serde_json::to_value(value)?;
-            .insert(key.to_owned(), serde_json::to_value(value)?);
+
        if !value.is_null() {
            self.unparsed_mut().insert(key.to_owned(), value);
        }
        Ok(self)
    }
 }