Struct rustc_mir_build::build::matches::Ascription
source · [−]struct Ascription<'tcx> {
span: Span,
source: Place<'tcx>,
user_ty: PatTyProj<'tcx>,
variance: Variance,
}Expand description
Indicates that the type of source must be a subtype of the
user-given type user_ty; this is basically a no-op but can
influence region inference.
Fields
span: Spansource: Place<'tcx>user_ty: PatTyProj<'tcx>variance: VarianceTrait Implementations
sourceimpl<'tcx> Clone for Ascription<'tcx>
impl<'tcx> Clone for Ascription<'tcx>
sourcefn clone(&self) -> Ascription<'tcx>
fn clone(&self) -> Ascription<'tcx>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for Ascription<'tcx>
impl<'tcx> !Send for Ascription<'tcx>
impl<'tcx> !Sync for Ascription<'tcx>
impl<'tcx> Unpin for Ascription<'tcx>
impl<'tcx> !UnwindSafe for Ascription<'tcx>
Blanket Implementations
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)
🔬 This is a nightly-only experimental API. (
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: 88 bytes