Enum rustc_trait_selection::infer::TyOrConstInferVar

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pub enum TyOrConstInferVar<'tcx> {
    Ty(TyVid),
    TyInt(IntVid),
    TyFloat(FloatVid),
    Const(ConstVid<'tcx>),
    Effect(EffectVid<'tcx>),
}
Expand description

Helper for InferCtxt::ty_or_const_infer_var_changed (see comment on that), currently used only for traits::fulfill’s list of stalled_on inference variables.

Variants§

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Ty(TyVid)

Equivalent to ty::Infer(ty::TyVar(_)).

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TyInt(IntVid)

Equivalent to ty::Infer(ty::IntVar(_)).

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TyFloat(FloatVid)

Equivalent to ty::Infer(ty::FloatVar(_)).

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Const(ConstVid<'tcx>)

Equivalent to ty::ConstKind::Infer(ty::InferConst::Var(_)).

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Effect(EffectVid<'tcx>)

Equivalent to ty::ConstKind::Infer(ty::InferConst::EffectVar(_)).

Auto Trait Implementations§

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impl<'tcx> RefUnwindSafe for TyOrConstInferVar<'tcx>

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impl<'tcx> Send for TyOrConstInferVar<'tcx>

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impl<'tcx> Sync for TyOrConstInferVar<'tcx>

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impl<'tcx> Unpin for TyOrConstInferVar<'tcx>

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impl<'tcx> UnwindSafe for TyOrConstInferVar<'tcx>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.

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: 8 bytes

Size for each variant:

  • Ty: 4 bytes
  • TyInt: 4 bytes
  • TyFloat: 4 bytes
  • Const: 4 bytes
  • Effect: 4 bytes