Struct mozjs::gc::RootedGuard

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pub struct RootedGuard<'a, T: 'a + RootKind + GCMethods> {
    root: &'a mut Rooted<T>,
}
Expand description

Rust API for keeping a Rooted value in the context’s root stack. Example usage: rooted!(in(cx) let x = UndefinedValue());. RootedGuard::new also works, but the macro is preferred.

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§root: &'a mut Rooted<T>

Implementations§

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impl<'a, T: 'a + RootKind + GCMethods> RootedGuard<'a, T>

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pub fn new(cx: *mut JSContext, root: &'a mut Rooted<T>, initial: T) -> Self

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pub fn handle(&'a self) -> Handle<'a, T>

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pub fn handle_mut(&mut self) -> MutableHandle<'_, T>

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pub fn get(&self) -> T
where T: Copy,

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

Trait Implementations§

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impl<'a, T: 'a + RootKind + GCMethods> DerefMut for RootedGuard<'a, T>

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

Mutably dereferences the value.
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impl<'a, T: 'a + RootKind + GCMethods> Drop for RootedGuard<'a, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<'a, const N: usize> From<&RootedGuard<'a, ValueArray<N>>> for HandleValueArray

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fn from(array: &RootedGuard<'a, ValueArray<N>>) -> HandleValueArray

Converts to this type from the input type.
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impl<'a, T: 'a + RootKind + GCMethods> Deref for RootedGuard<'a, T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &T

Dereferences the value.

Auto Trait Implementations§

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impl<'a, T> Freeze for RootedGuard<'a, T>

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impl<'a, T> RefUnwindSafe for RootedGuard<'a, T>

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impl<'a, T> !Send for RootedGuard<'a, T>

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impl<'a, T> !Sync for RootedGuard<'a, T>

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impl<'a, T> Unpin for RootedGuard<'a, T>

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impl<'a, T> !UnwindSafe for RootedGuard<'a, T>

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<T> Filterable for T

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fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. 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> IntoEither for T

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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
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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
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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.
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> Formattable for T
where T: Deref, <T as Deref>::Target: Formattable,

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impl<T> MaybeSendSync for T

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impl<T> Parsable for T
where T: Deref, <T as Deref>::Target: Parsable,