Skip to main content

UserDataGuard

rquickjs::runtime

Struct UserDataGuard 

Source 
pub struct UserDataGuard<'a, U> { /* private fields */ }
Expand description

Guard for user data to avoid inserting new userdata while exisiting userdata is being referenced.

Trait Implementations§

Source§

impl<'a, U> Deref for UserDataGuard<'a, U>

Source§

type Target = U

The resulting type after dereferencing.
Source§

fn deref(&self) -> &<UserDataGuard<'a, U> as Deref>::Target

Dereferences the value.
Source§

impl<'a, U> Drop for UserDataGuard<'a, U>

Source§

fn drop(&mut self)

Executes the destructor for this type. Read more
Source§

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

Auto Trait Implementations§

§

impl<'a, U> !RefUnwindSafe for UserDataGuard<'a, U>

§

impl<'a, U> !Send for UserDataGuard<'a, U>

§

impl<'a, U> !Sync for UserDataGuard<'a, U>

§

impl<'a, U> !UnwindSafe for UserDataGuard<'a, U>

§

impl<'a, U> Freeze for UserDataGuard<'a, U>
where &'a U: Freeze,

§

impl<'a, U> Unpin for UserDataGuard<'a, U>
where &'a U: Unpin,

§

impl<'a, U> UnsafeUnpin for UserDataGuard<'a, U>
where &'a U: UnsafeUnpin,

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

Source§

type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
Source§

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

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.