Enum rustc_middle::mir::UnusedUnsafe

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pub enum UnusedUnsafe {
    Unused,
    InUnsafeBlock(HirId),
    InUnsafeFn(HirId, HirId),
}

Variants

`Unused`

unsafe block contains no unsafe operations

unnecessary `unsafe` block

`InUnsafeBlock(HirId)`

unsafe block nested under another (used) unsafe block

… because it's nested under this `unsafe` block

`InUnsafeFn(HirId, HirId)`

unsafe block nested under unsafe fn

… because it's nested under this `unsafe fn`

the second HirId here indicates the first usage of the unsafe block, which allows retrieval of the LintLevelSource for why that operation would have been permitted without the block

Trait Implementations

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impl Clone for UnusedUnsafe

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fn clone(&self) -> UnusedUnsafe

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for UnusedUnsafe

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

Formats the value using the given formatter. Read more

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fn hash_stable(
 &self,
 hcx: &mut StableHashingContext<'ctx>,
 __hasher: &mut StableHasher
)

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impl PartialEq<UnusedUnsafe> for UnusedUnsafe

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fn eq(&self, other: &UnusedUnsafe) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl StructuralPartialEq for UnusedUnsafe

Auto Trait Implementations

impl RefUnwindSafe for UnusedUnsafe

impl UnwindSafe for UnusedUnsafe

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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,

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fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &mut [u8]`impl<'_> Write for &mut [u8]impl<'_> Read for &[u8]`

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

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default fn fingerprint_style() -> FingerprintStyle

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default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint

This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more

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default fn to_debug_str(&self, Ctxt) -> String

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default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>

This method tries to recover the query key from the given DepNode, something which is needed when forcing DepNodes during red-green evaluation. The query system will only call this method if fingerprint_style() is not FingerprintStyle::Opaque. It is always valid to return None here, in which case incremental compilation will treat the query as having changed instead of forcing it. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, R> InternIteratorElement<T, R> for T

type Output = R

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fn intern_with<I, F>(
 iter: I,
 f: F
) -> <T as InternIteratorElement<T, R>>::Output where
 I: Iterator<Item = T>,
 F: for<'_> FnOnce(&[T]) -> R,

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

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> MaybeResult<T> for T

type Error = !

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fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> ToOwned for T where
T: Clone,

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 for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<'a, T> Captures<'a> for T where
T: ?Sized,

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: 20 bytes

Size for each variant:

Unused: 0 bytes
InUnsafeBlock: 8 bytes
InUnsafeFn: 16 bytes

Enum rustc_middle::mir::UnusedUnsafe

Variants

Unused

InUnsafeBlock(HirId)

InUnsafeFn(HirId, HirId)

Trait Implementations

impl Clone for UnusedUnsafe

fn clone(&self) -> UnusedUnsafe

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

impl Debug for UnusedUnsafe

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

impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for UnusedUnsafe

fn decode(__decoder: &mut __D) -> Self

impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for UnusedUnsafe

fn encode(&self, __encoder: &mut __E)

impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for UnusedUnsafe

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher)

impl PartialEq<UnusedUnsafe> for UnusedUnsafe

fn eq(&self, other: &UnusedUnsafe) -> bool

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

impl Copy for UnusedUnsafe

impl StructuralPartialEq for UnusedUnsafe

Auto Trait Implementations

impl RefUnwindSafe for UnusedUnsafe

impl Send for UnusedUnsafe

impl Sync for UnusedUnsafe

impl Unpin for UnusedUnsafe

impl UnwindSafe for UnusedUnsafe

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where T: Copy,

fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

fn allocate_from_iter( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>) -> &'a mut [T]ⓘNotable traits for &mut [u8]impl<'_> Write for &mut [u8]impl<'_> Read for &[u8]

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<Ctxt, T> DepNodeParams<Ctxt> for T where Ctxt: DepContext, T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

default fn fingerprint_style() -> FingerprintStyle

default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint

default fn to_debug_str(&self, Ctxt) -> String

default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, R> InternIteratorElement<T, R> for T

type Output = R

fn intern_with<I, F>( iter: I, f: F) -> <T as InternIteratorElement<T, R>>::Output where I: Iterator<Item = T>, F: for<'_> FnOnce(&[T]) -> R,

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> MaybeResult<T> for T

type Error = !

fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<'a, T> Captures<'a> for T where T: ?Sized,

Layout

`Unused`

`InUnsafeBlock(HirId)`

`InUnsafeFn(HirId, HirId)`

impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for UnusedUnsafe

fn decode(decoder: &mut D) -> Self

impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for UnusedUnsafe

fn encode(&self, encoder: &mut E)

impl<'ctx> HashStable<StableHashingContext<'ctx>> for UnusedUnsafe

fn hash_stable(
&self,
hcx: &mut StableHashingContext<'ctx>,
__hasher: &mut StableHasher
)

impl<T> Any for T where
T: 'static + ?Sized,

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,

fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &mut [u8]`impl<'_> Write for &mut [u8]impl<'_> Read for &[u8]`

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

fn intern_with<I, F>(
iter: I,
f: F
) -> <T as InternIteratorElement<T, R>>::Output where
I: Iterator<Item = T>,
F: for<'_> FnOnce(&[T]) -> R,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<'a, T> Captures<'a> for T where
T: ?Sized,