Struct AutoArray

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pub struct AutoArray<'a, 'b, T>
where 'a: 'b, T: TypeArray,
{ /* private fields */ }
Expand description

Auto-release wrapper for pointer-based generic arrays.

This wrapper is used to wrap pointers returned by GetArrayElements. While wrapped, the object can be accessed via the From impl.

AutoArray provides automatic array release through a call to appropriate ReleaseArrayElements when it goes out of scope.

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impl<'a, 'b, T> AutoArray<'a, 'b, T>
where T: TypeArray,

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pub fn as_ptr(&self) -> *mut T

Get a reference to the wrapped pointer

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pub fn commit(&self) -> Result<(), Error>

Commits the changes to the array, if it is a copy

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pub fn discard(&mut self)

Don’t commit the changes to the array on release (if it is a copy). This has no effect if the array is not a copy. This method is useful to change the release mode of an array originally created with ReleaseMode::CopyBack.

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pub fn is_copy(&self) -> bool

Indicates if the array is a copy or not

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pub fn size(&self) -> Result<i32, Error>

Returns the array size

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impl<'a, 'b, T> Drop for AutoArray<'a, 'b, T>
where T: TypeArray,

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<'a, T> From<&'a AutoArray<'a, '_, T>> for *mut T
where T: TypeArray,

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fn from(other: &'a AutoArray<'_, '_, T>) -> *mut T

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'a, 'b, T> Freeze for AutoArray<'a, 'b, T>

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impl<'a, 'b, T> RefUnwindSafe for AutoArray<'a, 'b, T>
where T: RefUnwindSafe,

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impl<'a, 'b, T> !Send for AutoArray<'a, 'b, T>

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impl<'a, 'b, T> !Sync for AutoArray<'a, 'b, T>

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impl<'a, 'b, T> Unpin for AutoArray<'a, 'b, T>

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impl<'a, 'b, T> UnwindSafe for AutoArray<'a, 'b, T>
where T: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<'a, T> Desc<'a, T> for T

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fn lookup(self, _: &JNIEnv<'a>) -> Result<T, Error>

Different

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impl<'a, T> Desc<'a, T> for T

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fn lookup(self, _: &JNIEnv<'a>) -> Result<T, Error>

Look up the concrete type from the JVM.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.