Struct DropAdapter 

pub struct DropAdapter<TD: PureTryDrop>(pub TD);

A type which implements Drop for types which implements TryDrop.

Notes

This does not implement TryDrop itself, as you could repeat calling the TryDrop::try_drop method, potentially resulting in undefined behavior. However, it does implement it if your type implements the RepeatableTryDrop trait.

Implementation

We call try_drop, which is safe because we only do it in Drop::drop. If it returns an error, we redirect the error to the fallback try drop strategy.

Tuple Fields

0: TD

Trait Implementations

impl<TD: PureTryDrop> AsMut<TD> for DropAdapter<TD>

fn as_mut(&mut self) -> &mut TD

Converts this type into a mutable reference of the (usually inferred) input type.

impl<TD: PureTryDrop> AsRef<TD> for DropAdapter<TD>

fn as_ref(&self) -> &TD

Converts this type into a shared reference of the (usually inferred) input type.

impl<TD: PureTryDrop> Borrow<TD> for DropAdapter<TD>

fn borrow(&self) -> &TD

Immutably borrows from an owned value.

impl<TD: PureTryDrop> BorrowMut<TD> for DropAdapter<TD>

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

Mutably borrows from an owned value.

impl<TD: Clone + PureTryDrop> Clone for DropAdapter<TD>

fn clone(&self) -> DropAdapter<TD>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<TD: Debug + PureTryDrop> Debug for DropAdapter<TD>

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

Formats the value using the given formatter.

impl<TD: PureTryDrop> Deref for DropAdapter<TD>

type Target = TD

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<TD: PureTryDrop> DerefMut for DropAdapter<TD>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<TD: PureTryDrop> Drop for DropAdapter<TD>

fn drop(&mut self)

Executes the destructor for this type.

impl<TD: PureTryDrop> From<TD> for DropAdapter<TD>

fn from(t: TD) -> Self

Converts to this type from the input type.

impl<TD: Hash + PureTryDrop> Hash for DropAdapter<TD>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<TD: Ord + PureTryDrop> Ord for DropAdapter<TD>

fn cmp(&self, other: &DropAdapter<TD>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<TD: PartialEq + PureTryDrop> PartialEq for DropAdapter<TD>

fn eq(&self, other: &DropAdapter<TD>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<TD: PartialOrd + PureTryDrop> PartialOrd for DropAdapter<TD>

fn partial_cmp(&self, other: &DropAdapter<TD>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<RTD: RepeatableTryDrop> PureTryDrop for DropAdapter<RTD>

type Error = <RTD as PureTryDrop>::Error

The type of the error that may occur during drop.

type FallbackTryDropStrategy = <RTD as PureTryDrop>::FallbackTryDropStrategy

The type which will be used if the drop strategy fails.

type TryDropStrategy = <RTD as PureTryDrop>::TryDropStrategy

The type which will be used if dropping fails.

fn fallback_try_drop_strategy(&self) -> &Self::FallbackTryDropStrategy

Get a reference to the fallback try drop strategy.

fn try_drop_strategy(&self) -> &Self::TryDropStrategy

Get a reference to the try drop strategy.

unsafe fn try_drop(&mut self) -> Result<(), Self::Error>

Execute the fallible destructor for this type. This function is unsafe because if this is called outside of a Drop::drop context, once the scope of the object implementing trait ends, this function will be called twice, potentially resulting in a double-free.

fn adapt(self) -> DropAdapter<Self>

where Self: Sized,

Adapts this type to take advantage of the specified try drop strategies.

impl<RTD: RepeatableTryDrop> RepeatableTryDrop for DropAdapter<RTD>

fn safe_try_drop(&mut self) -> Result<(), Self::Error>

Safely try and drop the implementing type. You can call this function multiple times.

impl<TD: Eq + PureTryDrop> Eq for DropAdapter<TD>

impl<TD: PureTryDrop> StructuralPartialEq for DropAdapter<TD>