Enum rustc_infer::infer::SubregionOrigin[−][src]

pub enum SubregionOrigin<'tcx> {
    Subtype(Box<TypeTrace<'tcx>>),
    RelateObjectBound(Span),
    RelateParamBound(Span, Ty<'tcx>),
    RelateRegionParamBound(Span),
    Reborrow(Span),
    ReborrowUpvar(Span, UpvarId),
    DataBorrowed(Ty<'tcx>, Span),
    ReferenceOutlivesReferent(Ty<'tcx>, Span),
    CallReturn(Span),
    CompareImplMethodObligation {
        span: Span,
        item_name: Symbol,
        impl_item_def_id: DefId,
        trait_item_def_id: DefId,
    },
}
Expand description

The origin of a r1 <= r2 constraint.

See error_reporting module for more details

Variants

Subtype(Box<TypeTrace<'tcx>>)
Expand description

Arose from a subtyping relation

RelateObjectBound(Span)
Expand description

When casting &'a T to an &'b Trait object, relating 'a to 'b

RelateParamBound(Span, Ty<'tcx>)
Expand description

Some type parameter was instantiated with the given type, and that type must outlive some region.

RelateRegionParamBound(Span)
Expand description

The given region parameter was instantiated with a region that must outlive some other region.

Reborrow(Span)
Expand description

Creating a pointer b to contents of another reference

ReborrowUpvar(Span, UpvarId)
Expand description

Creating a pointer b to contents of an upvar

DataBorrowed(Ty<'tcx>, Span)
Expand description

Data with type Ty<'tcx> was borrowed

ReferenceOutlivesReferent(Ty<'tcx>, Span)
Expand description

(&’a &’b T) where a >= b

CallReturn(Span)
Expand description

Region in return type of invoked fn must enclose call

CompareImplMethodObligation
Expand description

Comparing the signature and requirements of an impl method against the containing trait.

Show fields

Fields of CompareImplMethodObligation

span: Spanitem_name: Symbolimpl_item_def_id: DefIdtrait_item_def_id: DefId

Implementations

impl<'tcx> SubregionOrigin<'tcx>[src]

pub fn span(&self) -> Span[src]

pub fn from_obligation_cause<F>(
    cause: &ObligationCause<'tcx>,
    default: F
) -> Self where
    F: FnOnce() -> Self, [src]

Trait Implementations

impl<'tcx> Clone for SubregionOrigin<'tcx>[src]

fn clone(&self) -> SubregionOrigin<'tcx>[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl<'tcx> Debug for SubregionOrigin<'tcx>[src]

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl<'tcx> !RefUnwindSafe for SubregionOrigin<'tcx>

impl<'tcx> !Send for SubregionOrigin<'tcx>

impl<'tcx> !Sync for SubregionOrigin<'tcx>

impl<'tcx> Unpin for SubregionOrigin<'tcx>

impl<'tcx> !UnwindSafe for SubregionOrigin<'tcx>

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

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

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

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> WithConstness for T[src]

fn with_constness(self, constness: Constness) -> ConstnessAnd<Self>[src]

fn with_const(self) -> ConstnessAnd<Self>[src]

fn without_const(self) -> ConstnessAnd<Self>[src]

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