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use crate::{
objects::JObject,
sys::{jclass, jobject},
};
/// Lifetime'd representation of a `jclass`. Just a `JObject` wrapped in a new
/// class.
#[repr(transparent)]
#[derive(Clone, Copy, Debug)]
pub struct JClass<'a>(JObject<'a>);
impl<'a> ::std::ops::Deref for JClass<'a> {
type Target = JObject<'a>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl<'a> From<JClass<'a>> for JObject<'a> {
fn from(other: JClass) -> JObject {
other.0
}
}
/// This conversion assumes that the `JObject` is a pointer to a class object.
impl<'a> From<JObject<'a>> for JClass<'a> {
fn from(other: JObject) -> Self {
unsafe { Self::from_raw(other.into_raw()) }
}
}
impl<'a> std::default::Default for JClass<'a> {
fn default() -> Self {
Self(JObject::null())
}
}
impl<'a> JClass<'a> {
/// Creates a [`JClass`] that wraps the given `raw` [`jclass`]
///
/// # Safety
///
/// Expects a valid pointer or `null`
pub unsafe fn from_raw(raw: jclass) -> Self {
Self(JObject::from_raw(raw as jobject))
}
/// Unwrap to the raw jni type.
pub fn into_raw(self) -> jclass {
self.0.into_raw() as jclass
}
}
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