Instance

Struct Instance 

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#[repr(C)]
pub struct Instance { pub v: usize, pub w: usize, pub cls: Class, }
Expand description

原生类型实例

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§v: usize

原生类实例的第一个可用值

§w: usize

原生类实例的第二个可用值

§cls: Class

实例的原生类指针

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impl Instance

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pub fn read<T>(&self) -> &mut T

以T的格式读取v值, 请保证v是有效指针且可写

虽说不带unsafe, 但还是很容易UB的

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pub fn readw<T>(&self) -> &mut T

w的read

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pub fn set<T>(&mut self, v: T)

执行T的析构函数, 并把v覆盖为新值

请务必保证set前后的指针类型相同

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pub fn setw<T>(&mut self, w: T)

w的set

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pub fn dropv<T>(&mut self)

将v作为T的指针, 将T的内存释放

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pub fn dropw<T>(&mut self)

w版drop

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impl Clone for Instance

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fn clone(&self) -> Self

调用自定义clone (key-native库中的默认clone行为也可用)

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

Performs copy-assignment from source. Read more
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impl Debug for Instance

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

Formats the value using the given formatter. Read more
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impl Drop for Instance

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fn drop(&mut self)

调用自定义drop (key-native的默认drop不做任何事)

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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<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.