Enum rustc_infer::infer::type_variable::TypeVariableValue[−][src]

pub enum TypeVariableValue<'tcx> {
    Known {
        value: Ty<'tcx>,
    },
    Unknown {
        universe: UniverseIndex,
    },
}

Variants

Known
Show fields

Fields of Known

value: Ty<'tcx>
Unknown
Show fields

Fields of Unknown

universe: UniverseIndex

Implementations

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

pub fn known(&self) -> Option<Ty<'tcx>>[src]

If this value is known, returns the type it is known to be. Otherwise, None.

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

Trait Implementations

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

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

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

Formats the value using the given formatter. Read more

impl<'tcx> UnifyValue for TypeVariableValue<'tcx>[src]

type Error = NoError

Defines the type to return when merging of two values fails. If merging is infallible, use the special struct NoError found in this crate, which unlocks various more convenient methods on the unification table. Read more

fn unify_values(value1: &Self, value2: &Self) -> Result<Self, NoError>[src]

Given two values, produce a new value that combines them. If that is not possible, produce an error. Read more

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

Auto Trait Implementations

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

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

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

impl<'tcx> Unpin for TypeVariableValue<'tcx>

impl<'tcx> !UnwindSafe for TypeVariableValue<'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<'tcx, T> ArenaAllocatable<'tcx, ()> for T where
    T: Copy, [src]

pub fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T[src]

pub fn allocate_from_iter(
    arena: &'a Arena<'tcx>,
    iter: impl IntoIterator<Item = T>
) -> &'a mut [T][src]

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]