Enum rustc_infer::infer::canonical::CanonicalTyVarKind
source · [−]pub enum CanonicalTyVarKind {
General(UniverseIndex),
Int,
Float,
}Expand description
Rust actually has more than one category of type variables; notably, the type variables we create for literals (e.g., 22 or 22.) can only be instantiated with integral/float types (e.g., usize or f32). In order to faithfully reproduce a type, we need to know what set of types a given type variable can be unified with.
Variants
General(UniverseIndex)
General type variable ?T that can be unified with arbitrary types.
Int
Integral type variable ?I (that can only be unified with integral types).
Float
Floating-point type variable ?F (that can only be unified with float types).
Auto Trait Implementations
impl RefUnwindSafe for CanonicalTyVarKind
impl Send for CanonicalTyVarKind
impl Sync for CanonicalTyVarKind
impl Unpin for CanonicalTyVarKind
impl UnwindSafe for CanonicalTyVarKind
Blanket Implementations
sourceimpl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,
pub fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T
pub fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. Read more
impl<'a, T> Captures<'a> for T where
T: ?Sized,
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: 4 bytes
Size for each variant:
General: 4 bytesInt: 0 bytesFloat: 0 bytes