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116 lines
3.8 KiB
Markdown
116 lines
3.8 KiB
Markdown
# ActivityStreams Derive
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__derive macros for ActivityStreams__
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- [Read the documentation on docs.rs](https://docs.rs/activitystreams-derive)
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- [Find the crate on crates.io](https://crates.io/crates/activitystreams-derive)
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- [Hit me up on Mastodon](https://asonix.dog/@asonix)
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## Usage
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Add the required crates to your `Cargo.toml`
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```toml
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# Cargo.toml
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activitystreams-derive = "0.3"
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activitystreams-traits = "0.3"
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activitystreams-types = "0.4"
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serde = { version = "1.0", features = ["derive"] }
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```
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And then in your project
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```rust
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use activitystreams_derive::{properties, PropRefs, UnitString};
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use activitystreams_traits::Object;
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use activitystreams_types::object::{
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properties::ObjectProperties,
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ObjectExt,
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};
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/// Using the UnitString derive macro
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///
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/// This macro implements Serialize and Deserialize for the given type, making this type
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/// represent the string "SomeKind" in JSON.
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#[derive(Clone, Debug, Default, UnitString)]
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#[activitystreams(SomeKind)]
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pub struct MyKind;
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properties! {
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My {
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docs [
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"Using the properties macro",
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"",
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"This macro generates getters and setters for the associated fields.",
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],
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kind {
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docs [
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"Use the UnitString MyKind to enforce the type of the object by \"SomeKind\"",
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"",
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"Rename to/from 'type' when serializing/deserializing",
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],
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types [
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MyKind,
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],
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functional,
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required,
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rename("type"),
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},
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required_key {
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docs [
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"Derive getters and setters for required_key with String type.",
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"",
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"In the Activity Streams spec, 'functional' means there can only be one item for",
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"this key. This means all fields not labeled 'functional' can also be",
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"serialized/deserialized as Vec<T>.",
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"",
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"'required' here means that the field must be present, otherwise, it's"
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"represented as an Option<T>",
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],
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types [
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String,
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],
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functional,
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required,
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},
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}
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}
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#[derive(Clone, Default, PropRefs, serde::Deserialize, serde::Serialize)]
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#[serde(rename_all = "camelCase")]
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pub struct My {
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/// Derive AsRef<MyProperties> and AsMut<MyProperties>
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#[serde(flatten)]
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#[activitystreams(None)]
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my_properties: MyProperties,
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/// Derive AsRef<ObjectProperties> and AsMut<ObjectProperties>
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///
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/// as well as the Object and ObjectExt traits
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#[serde(flatten)]
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#[activitystreams(Object)]
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properties: ObjectProperties,
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}
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let mut my = My::default();
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my.as_mut().set_required_key("Hello")?;
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assert_eq!(my.as_ref().get_required_key(), "Hello");
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Ok(())
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}
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```
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## Contributing
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Feel free to open issues for anything you find an issue with. Please note that any contributed code will be licensed under the GPLv3.
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## License
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Copyright © 2020 Riley Trautman
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ActivityStreams Derive 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.
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ActivityStreams Derive 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 Derive.
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You should have received a copy of the GNU General Public License along with ActivityStreams Derive. If not, see [http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
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