Struct miri::borrow_tracker::tree_borrows::NewPermission

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struct NewPermission {
    zero_size: bool,
    initial_state: Permission,
    protector: Option<ProtectorKind>,
}
Expand description

Policy for a new borrow.

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§zero_size: bool

Optionally ignore the actual size to do a zero-size reborrow. If this is set then dereferenceable is not enforced.

§initial_state: Permission

Which permission should the pointer start with.

§protector: Option<ProtectorKind>

Whether this pointer is part of the arguments of a function call. protector is Some(_) for all pointers marked noalias.

Implementations§

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impl<'tcx> NewPermission

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fn from_ref_ty( pointee: Ty<'tcx>, mutability: Mutability, kind: RetagKind, cx: &MiriInterpCx<'tcx>, ) -> Option<Self>

Determine NewPermission of the reference from the type of the pointee.

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fn from_unique_ty( ty: Ty<'tcx>, kind: RetagKind, cx: &MiriInterpCx<'tcx>, zero_size: bool, ) -> Option<Self>

Compute permission for Box-like type (Box always, and also Unique if enabled). These pointers allow deallocation so need a different kind of protector not handled by from_ref_ty.

Trait Implementations§

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impl Clone for NewPermission

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fn clone(&self) -> NewPermission

Returns a copy 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 Debug for NewPermission

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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 Copy for NewPermission

Auto Trait Implementations§

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> 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> Same for T

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type Output = T

Should always be Self
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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, 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes