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NotCopy

Struct NotCopy 

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#[repr(transparent)]
pub struct NotCopy<T>(pub T);
Expand description

This type exists for one purpose and one purpose only. To help you ensure you’re mutating the correct thing, and not mutating a copy. Put Copy types in here to rob them of their Copy implementation.

This wrapper tries to be transparent in every way, of course it can’t implement every trait in existence, but we’ll try to get the important ones. Crate feature “serde” will include Serialize and Deserialize.

Major omissions from the trait implementations include common math traits, because consuming a NotCopy usually isn’t helpful, and those traits consume. However, traits such as AddAssign are implemented because they’re just a mutation.

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§0: T

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impl<T, Rhs> AddAssign<Rhs> for NotCopy<T>
where T: AddAssign<Rhs>,

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fn add_assign(&mut self, rhs: Rhs)

Performs the += operation. Read more
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impl<T, Rhs> BitAndAssign<Rhs> for NotCopy<T>
where T: BitAndAssign<Rhs>,

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fn bitand_assign(&mut self, rhs: Rhs)

Performs the &= operation. Read more
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impl<T, Rhs> BitOrAssign<Rhs> for NotCopy<T>
where T: BitOrAssign<Rhs>,

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fn bitor_assign(&mut self, rhs: Rhs)

Performs the |= operation. Read more
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impl<T, Rhs> BitXorAssign<Rhs> for NotCopy<T>
where T: BitXorAssign<Rhs>,

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fn bitxor_assign(&mut self, rhs: Rhs)

Performs the ^= operation. Read more
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impl<T: Clone> Clone for NotCopy<T>

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fn clone(&self) -> NotCopy<T>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Debug for NotCopy<T>
where T: Debug,

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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<T: Default> Default for NotCopy<T>

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fn default() -> NotCopy<T>

Returns the “default value” for a type. Read more
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impl<T> Display for NotCopy<T>
where T: Display,

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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<T, Rhs> DivAssign<Rhs> for NotCopy<T>
where T: DivAssign<Rhs>,

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fn div_assign(&mut self, rhs: Rhs)

Performs the /= operation. Read more
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impl<T> From<T> for NotCopy<T>

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fn from(t: T) -> Self

Converts to this type from the input type.
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impl<T: Hash> Hash for NotCopy<T>

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T, Idx> Index<Idx> for NotCopy<T>
where T: Index<Idx>,

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type Output = <T as Index<Idx>>::Output

The returned type after indexing.
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fn index(&self, index: Idx) -> &Self::Output

Performs the indexing (container[index]) operation. Read more
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impl<T, Idx> IndexMut<Idx> for NotCopy<T>
where T: IndexMut<Idx>,

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fn index_mut(&mut self, index: Idx) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation. Read more
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impl<T, Rhs> MulAssign<Rhs> for NotCopy<T>
where T: MulAssign<Rhs>,

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fn mul_assign(&mut self, rhs: Rhs)

Performs the *= operation. Read more
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impl<T: Ord> Ord for NotCopy<T>

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fn cmp(&self, other: &NotCopy<T>) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl<T: PartialEq> PartialEq for NotCopy<T>

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fn eq(&self, other: &NotCopy<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T: PartialOrd> PartialOrd for NotCopy<T>

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fn partial_cmp(&self, other: &NotCopy<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<T, Rhs> RemAssign<Rhs> for NotCopy<T>
where T: RemAssign<Rhs>,

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fn rem_assign(&mut self, rhs: Rhs)

Performs the %= operation. Read more
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impl<T, Rhs> ShlAssign<Rhs> for NotCopy<T>
where T: ShlAssign<Rhs>,

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fn shl_assign(&mut self, rhs: Rhs)

Performs the <<= operation. Read more
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impl<T, Rhs> ShrAssign<Rhs> for NotCopy<T>
where T: ShrAssign<Rhs>,

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fn shr_assign(&mut self, rhs: Rhs)

Performs the >>= operation. Read more
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impl<T, Rhs> SubAssign<Rhs> for NotCopy<T>
where T: SubAssign<Rhs>,

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fn sub_assign(&mut self, rhs: Rhs)

Performs the -= operation. Read more
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impl<T: Eq> Eq for NotCopy<T>

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impl<T> StructuralPartialEq for NotCopy<T>

Auto Trait Implementations§

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impl<T> Freeze for NotCopy<T>
where T: Freeze,

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impl<T> RefUnwindSafe for NotCopy<T>
where T: RefUnwindSafe,

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impl<T> Send for NotCopy<T>
where T: Send,

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impl<T> Sync for NotCopy<T>
where T: Sync,

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impl<T> Unpin for NotCopy<T>
where T: Unpin,

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impl<T> UnsafeUnpin for NotCopy<T>
where T: UnsafeUnpin,

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impl<T> UnwindSafe for NotCopy<T>
where T: UnwindSafe,

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> 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<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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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> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. 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.