[][src]Enum rustc_mir::borrow_check::universal_regions::DefiningTy

pub enum DefiningTy<'tcx> {
    Closure(DefIdSubstsRef<'tcx>),
    Generator(DefIdSubstsRef<'tcx>, Movability),
    FnDef(DefIdSubstsRef<'tcx>),
    Const(DefIdSubstsRef<'tcx>),
}

The "defining type" for this MIR. The key feature of the "defining type" is that it contains the information needed to derive all the universal regions that are in scope as well as the types of the inputs/output from the MIR. In general, early-bound universal regions appear free in the defining type and late-bound regions appear bound in the signature.

Variants

Closure(DefIdSubstsRef<'tcx>)

The MIR is a closure. The signature is found via ClosureSubsts::closure_sig_ty.

Generator(DefIdSubstsRef<'tcx>, Movability)

The MIR is a generator. The signature is that generators take no parameters and return the result of ClosureSubsts::generator_return_ty.

FnDef(DefIdSubstsRef<'tcx>)

The MIR is a fn item with the given DefId and substs. The signature of the function can be bound then with the fn_sig query.

Const(DefIdSubstsRef<'tcx>)

The MIR represents some form of constant. The signature then is that it has no inputs and a single return value, which is the value of the constant.

Implementations

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

pub fn upvar_tys(self) -> impl Iterator<Item = Ty<'tcx>> + 'tcx[src]

Returns a list of all the upvar types for this MIR. If this is not a closure or generator, there are no upvars, and hence it will be an empty list. The order of types in this list will match up with the upvar order in the HIR, typesystem, and MIR.

pub fn implicit_inputs(self) -> usize[src]

Number of implicit inputs -- notably the "environment" parameter for closures -- that appear in MIR but not in the user's code.

pub fn is_fn_def(&self) -> bool[src]

pub fn is_const(&self) -> bool[src]

pub fn def_id(&self) -> DefId[src]

Trait Implementations

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

impl<'tcx> Copy for DefiningTy<'tcx>[src]

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

Auto Trait Implementations

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

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

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

impl<'tcx> Unpin for DefiningTy<'tcx>

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

Blanket Implementations

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

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

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

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

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

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

type Owned = T

The resulting type after obtaining ownership.

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.

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.

impl<T> WithConstness for T[src]