Enum rustc_infer::infer::TyOrConstInferVar
source · 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§
Ty(TyVid)
Equivalent to ty::Infer(ty::TyVar(_))
.
TyInt(IntVid)
Equivalent to ty::Infer(ty::IntVar(_))
.
TyFloat(FloatVid)
Equivalent to ty::Infer(ty::FloatVar(_))
.
Const(ConstVid<'tcx>)
Equivalent to ty::ConstKind::Infer(ty::InferConst::Var(_))
.
Effect(EffectVid<'tcx>)
Equivalent to ty::ConstKind::Infer(ty::InferConst::EffectVar(_))
.
Implementations§
source§impl<'tcx> TyOrConstInferVar<'tcx>
impl<'tcx> TyOrConstInferVar<'tcx>
sourcepub fn maybe_from_generic_arg(arg: GenericArg<'tcx>) -> Option<Self>
pub fn maybe_from_generic_arg(arg: GenericArg<'tcx>) -> Option<Self>
Tries to extract an inference variable from a type or a constant, returns None
for types other than ty::Infer(_)
(or InferTy::Fresh*
) and
for constants other than ty::ConstKind::Infer(_)
(or InferConst::Fresh
).
sourcefn maybe_from_ty(ty: Ty<'tcx>) -> Option<Self>
fn maybe_from_ty(ty: Ty<'tcx>) -> Option<Self>
Tries to extract an inference variable from a type, returns None
for types other than ty::Infer(_)
(or InferTy::Fresh*
).
sourcefn maybe_from_const(ct: Const<'tcx>) -> Option<Self>
fn maybe_from_const(ct: Const<'tcx>) -> Option<Self>
Tries to extract an inference variable from a constant, returns None
for constants other than ty::ConstKind::Infer(_)
(or InferConst::Fresh
).
Trait Implementations§
source§impl<'tcx> Clone for TyOrConstInferVar<'tcx>
impl<'tcx> Clone for TyOrConstInferVar<'tcx>
source§fn clone(&self) -> TyOrConstInferVar<'tcx>
fn clone(&self) -> TyOrConstInferVar<'tcx>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<'tcx> Debug for TyOrConstInferVar<'tcx>
impl<'tcx> Debug for TyOrConstInferVar<'tcx>
impl<'tcx> Copy for TyOrConstInferVar<'tcx>
Auto Trait Implementations§
impl<'tcx> RefUnwindSafe for TyOrConstInferVar<'tcx>
impl<'tcx> Send for TyOrConstInferVar<'tcx>
impl<'tcx> Sync for TyOrConstInferVar<'tcx>
impl<'tcx> Unpin for TyOrConstInferVar<'tcx>
impl<'tcx> UnwindSafe for TyOrConstInferVar<'tcx>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
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 bytesTyInt
: 4 bytesTyFloat
: 4 bytesConst
: 4 bytesEffect
: 4 bytes