ra_ap_rustc_pattern_analysis::pat

Struct WitnessPat

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pub struct WitnessPat<Cx: PatCx> { /* private fields */ }
Expand description

Same idea as DeconstructedPat, except this is a fictitious pattern built up for diagnostics purposes. As such they don’t use interning and can be cloned.

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impl<Cx: PatCx> WitnessPat<Cx>

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pub fn ctor(&self) -> &Constructor<Cx>

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pub fn ty(&self) -> &Cx::Ty

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pub fn is_never_pattern(&self) -> bool

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pub fn iter_fields(&self) -> impl Iterator<Item = &WitnessPat<Cx>>

Trait Implementations§

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impl<Cx: PatCx> Clone for WitnessPat<Cx>

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fn clone(&self) -> Self

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<Cx: PatCx> Debug for WitnessPat<Cx>

This is best effort and not good enough for a Display impl.

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<Cx> Freeze for WitnessPat<Cx>
where <Cx as PatCx>::Ty: Freeze, <Cx as PatCx>::VariantIdx: Freeze, <Cx as PatCx>::StrLit: Freeze,

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impl<Cx> RefUnwindSafe for WitnessPat<Cx>

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impl<Cx> Send for WitnessPat<Cx>
where <Cx as PatCx>::Ty: Send, <Cx as PatCx>::VariantIdx: Send, <Cx as PatCx>::StrLit: Send,

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impl<Cx> Sync for WitnessPat<Cx>
where <Cx as PatCx>::Ty: Sync, <Cx as PatCx>::VariantIdx: Sync, <Cx as PatCx>::StrLit: Sync,

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impl<Cx> Unpin for WitnessPat<Cx>
where <Cx as PatCx>::Ty: Unpin, <Cx as PatCx>::VariantIdx: Unpin, <Cx as PatCx>::StrLit: Unpin,

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impl<Cx> UnwindSafe for WitnessPat<Cx>
where <Cx as PatCx>::Ty: UnwindSafe, <Cx as PatCx>::VariantIdx: UnwindSafe, <Cx as PatCx>::StrLit: 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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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, 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<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,