Struct rustc_mir_build::thir::pattern::usefulness::PatCtxt

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pub(super) struct PatCtxt<'a, 'p, 'tcx> {
    pub(super) cx: &'a MatchCheckCtxt<'p, 'tcx>,
    pub(super) ty: Ty<'tcx>,
    pub(super) span: Span,
    pub(super) is_top_level: bool,
    pub(super) is_non_exhaustive: bool,
}

Fields

cx: &'a MatchCheckCtxt<'p, 'tcx>ty: Ty<'tcx>

Type of the current column under investigation.

span: Span

Span of the current pattern under investigation.

is_top_level: bool

Whether the current pattern is the whole pattern as found in a match arm, or if it’s a subpattern.

is_non_exhaustive: bool

Wether the current pattern is from a non_exhaustive enum.

Trait Implementations

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impl<'a, 'p, 'tcx> Clone for PatCtxt<'a, 'p, 'tcx>

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fn clone(&self) -> PatCtxt<'a, 'p, 'tcx>

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<'a, 'p, 'tcx> Debug for PatCtxt<'a, 'p, 'tcx>

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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<'a, 'p, 'tcx> Copy for PatCtxt<'a, 'p, 'tcx>

Auto Trait Implementations

impl<'a, 'p, 'tcx> !RefUnwindSafe for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> !Send for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> !Sync for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> Unpin for PatCtxt<'a, 'p, 'tcx> where
'p: 'a,
'tcx: 'a,

impl<'a, 'p, 'tcx> !UnwindSafe for PatCtxt<'a, 'p, 'tcx>

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: 32 bytes

Struct rustc_mir_build::thir::pattern::usefulness::PatCtxt

Fields

Trait Implementations

impl<'a, 'p, 'tcx> Clone for PatCtxt<'a, 'p, 'tcx>

fn clone(&self) -> PatCtxt<'a, 'p, 'tcx>

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

impl<'a, 'p, 'tcx> Debug for PatCtxt<'a, 'p, 'tcx>

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

impl<'a, 'p, 'tcx> Copy for PatCtxt<'a, 'p, 'tcx>

Auto Trait Implementations

impl<'a, 'p, 'tcx> !RefUnwindSafe for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> !Send for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> !Sync for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> Unpin for PatCtxt<'a, 'p, 'tcx> where
'p: 'a,
'tcx: 'a,

impl<'a, 'p, 'tcx> !UnwindSafe for PatCtxt<'a, 'p, 'tcx>

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

Struct rustc_mir_build::thir::pattern::usefulness::PatCtxt

Fields

Trait Implementations

impl<'a, 'p, 'tcx> Clone for PatCtxt<'a, 'p, 'tcx>

fn clone(&self) -> PatCtxt<'a, 'p, 'tcx>

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

impl<'a, 'p, 'tcx> Debug for PatCtxt<'a, 'p, 'tcx>

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

impl<'a, 'p, 'tcx> Copy for PatCtxt<'a, 'p, 'tcx>

Auto Trait Implementations

impl<'a, 'p, 'tcx> !RefUnwindSafe for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> !Send for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> !Sync for PatCtxt<'a, 'p, 'tcx>

impl<'a, 'p, 'tcx> Unpin for PatCtxt<'a, 'p, 'tcx> where 'p: 'a, 'tcx: 'a,

impl<'a, 'p, 'tcx> !UnwindSafe for PatCtxt<'a, 'p, 'tcx>

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

impl<'a, 'p, 'tcx> Unpin for PatCtxt<'a, 'p, 'tcx> where
'p: 'a,
'tcx: 'a,

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,