Struct polyhorn_android::raw::jni::JObject

#[repr(transparent)]pub struct JObject<'a> { /* fields omitted */ }

Wrapper around sys::jobject that adds a lifetime. This prevents it from outliving the context in which it was acquired and getting GC'd out from under us. It matches C's representation of the raw pointer, so it can be used in any of the extern function argument positions that would take a jobject.

Most other types in the objects module deref to this, as they do in the C representation.

Implementations

impl<'a> JObject<'a>

pub fn into_inner(self) -> *mut _jobject

Unwrap to the internal jni type.

pub fn null() -> JObject<'a>

Creates a new null object

Methods from Deref<Target = *mut _jobject>

Trait Implementations

impl<'a> Clone for JObject<'a>

fn clone(&self) -> JObject<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for JObject<'a>

impl<'a> Debug for JObject<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'a> Deref for JObject<'a>

type Target = *mut _jobject

The resulting type after dereferencing.

fn deref(&self) -> &<JObject<'a> as Deref>::Target

Dereferences the value.

impl<'a, 'b> Desc<'a, JClass<'a>> for JObject<'b>

fn lookup(self, env: &JNIEnv<'a>) -> Result<JClass<'a>, Error>

Look up the concrete type from the JVM.

impl<'a, '_> From<&'a AutoLocal<'a, '_>> for JObject<'a>

fn from(other: &'a AutoLocal<'_, '_>) -> JObject<'a>

Performs the conversion.

impl<'a> From<&'a GlobalRef> for JObject<'a>

fn from(other: &'a GlobalRef) -> JObject<'a>

Performs the conversion.

impl<'a> From<*mut _jobject> for JObject<'a>

fn from(other: *mut _jobject) -> JObject<'a>

Performs the conversion.

impl<'a> From<JByteBuffer<'a>> for JObject<'a>

fn from(other: JByteBuffer<'_>) -> JObject<'_>

Performs the conversion.

impl<'a> From<JClass<'a>> for JObject<'a>

fn from(other: JClass<'_>) -> JObject<'_>

Performs the conversion.

impl<'a, 'b> From<JList<'a, 'b>> for JObject<'a> where
    'a: 'b, 

fn from(other: JList<'a, 'b>) -> JObject<'a>

Performs the conversion.

impl<'a, 'b> From<JMap<'a, 'b>> for JObject<'a> where
    'a: 'b, 

fn from(other: JMap<'a, 'b>) -> JObject<'a>

Performs the conversion.

impl<'a> From<JString<'a>> for JObject<'a>

fn from(other: JString<'_>) -> JObject<'_>

Performs the conversion.

impl<'a> From<JThrowable<'a>> for JObject<'a>

fn from(other: JThrowable<'_>) -> JObject<'_>

Performs the conversion.