napi-rs/examples/napi/src/class.rs

122 lines
2.1 KiB
Rust

use napi::Result;
use crate::r#enum::Kind;
/// `constructor` option for `struct` requires all fields to be public,
/// otherwise tag impl fn as constructor
/// #[napi(constructor)]
#[napi]
pub struct Animal {
#[napi(readonly)]
/// Kind of animal
pub kind: Kind,
name: String,
}
#[napi]
impl Animal {
/// This is the constructor
#[napi(constructor)]
pub fn new(kind: Kind, name: String) -> Self {
Animal { kind, name }
}
/// This is a factory method
#[napi(factory)]
pub fn with_kind(kind: Kind) -> Self {
Animal {
kind,
name: "Default".to_owned(),
}
}
#[napi(getter)]
pub fn get_name(&self) -> &str {
self.name.as_str()
}
#[napi(setter)]
pub fn set_name(&mut self, name: String) {
self.name = name;
}
/// This is a
/// multi-line comment
/// with an emoji 🚀
#[napi]
pub fn whoami(&self) -> String {
match self.kind {
Kind::Dog => {
format!("Dog: {}", self.name)
}
Kind::Cat => format!("Cat: {}", self.name),
Kind::Duck => format!("Duck: {}", self.name),
}
}
#[napi]
/// This is static...
pub fn get_dog_kind() -> Kind {
Kind::Dog
}
}
/// Smoking test for type generation
#[napi]
#[repr(transparent)]
pub struct Blake2bHasher(u32);
#[napi]
impl Blake2bHasher {
#[napi(factory)]
pub fn with_key(key: &Blake2bKey) -> Self {
Blake2bHasher(key.get_inner())
}
}
#[napi]
pub struct Blake2bKey(u32);
impl Blake2bKey {
fn get_inner(&self) -> u32 {
self.0
}
}
#[napi]
pub struct Context {
data: String,
pub maybe_need: Option<bool>,
}
// Test for return `napi::Result` and `Result`
#[napi]
impl Context {
#[napi(constructor)]
pub fn new() -> napi::Result<Self> {
Ok(Self {
data: "not empty".into(),
maybe_need: None,
})
}
#[napi(factory)]
pub fn with_data(data: String) -> Result<Self> {
Ok(Self {
data,
maybe_need: Some(true),
})
}
#[napi]
pub fn method(&self) -> String {
self.data.clone()
}
}
#[napi(constructor)]
pub struct AnimalWithDefaultConstructor {
pub name: String,
pub kind: u32,
}