Enum rustc_mir_build::thir::pattern::usefulness::Reachability

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pub(crate) enum Reachability {
    Reachable(Vec<Span>),
    Unreachable,
}

Expand description

Indicates whether or not a given arm is reachable.

Variants

`Reachable(Vec)`

The arm is reachable. This additionally carries a set of or-pattern branches that have been found to be unreachable despite the overall arm being reachable. Used only in the presence of or-patterns, otherwise it stays empty.

`Unreachable`

The arm is unreachable.

Trait Implementations

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impl Clone for Reachability

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fn clone(&self) -> Reachability

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 Reachability

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for Reachability

impl !Send for Reachability

impl !Sync for Reachability

impl Unpin for Reachability

impl UnwindSafe for Reachability

Blanket Implementations

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

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pub 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,

const: unstable · source

pub 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

pub 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

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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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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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

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

pub 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

pub 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: 24 bytes

Size for each variant:

Reachable: 24 bytes
Unreachable: 0 bytes

Enum rustc_mir_build::thir::pattern::usefulness::Reachability

Variants

`Reachable(Vec<Span>)`

`Unreachable`

Trait Implementations

impl Clone for Reachability

fn clone(&self) -> Reachability

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

impl Debug for Reachability

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

Auto Trait Implementations

impl RefUnwindSafe for Reachability

impl !Send for Reachability

impl !Sync for Reachability

impl Unpin for Reachability

impl UnwindSafe for Reachability

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

pub 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

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

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

Layout

Enum rustc_mir_build::thir::pattern::usefulness::Reachability

Variants

Reachable(Vec<Span>)

Unreachable

Trait Implementations

impl Clone for Reachability

fn clone(&self) -> Reachability

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

impl Debug for Reachability

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

Auto Trait Implementations

impl RefUnwindSafe for Reachability

impl !Send for Reachability

impl !Sync for Reachability

impl Unpin for Reachability

impl UnwindSafe for Reachability

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

pub 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

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

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

Layout

`Reachable(Vec<Span>)`

`Unreachable`

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

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

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

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,