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DeclaredGuard

Struct DeclaredGuard 

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pub struct DeclaredGuard { /* private fields */ }
Expand description

Holds declared aspects installed until released.

Not Send: it restores the thread it was created on, and the WOW64 revert token is meaningless anywhere else. Moving one to another thread would revert that thread’s redirection using a cookie minted for a different one.

As with TransactionGuard, that property is a consequence of a field type rather than an explicit bound – redirection is a raw pointer, and raw pointers are not Send. Replacing it with an integer newtype would silently make this guard Send and this paragraph false, so the claim is pinned by a test rather than left as prose:

fn assert_send<T: Send>() {}
assert_send::<windows_thread_ambient_sys::declared::DeclaredGuard>();

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impl DeclaredGuard

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pub fn release(self) -> Result<(), DeclaredError>

Restore every installed aspect, in exact reverse order.

§Errors

Returns the first DeclaredError encountered, having still attempted every remaining restoration – stopping early would leave more of the thread contaminated than necessary.

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impl Debug for DeclaredGuard

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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 DeclaredGuard

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fn drop(&mut self)

Executes the destructor for this type. Read more
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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

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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> 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 = !

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.