Struct rustc_metadata::rmeta::LazyArray
source · struct LazyArray<T> {
position: NonZeroUsize,
num_elems: usize,
_marker: PhantomData<fn() -> T>,
}
Expand description
A list of lazily-decoded values.
Unlike LazyValue<Vec<T>>
, the length is encoded next to the
position, not at the position, which means that the length
doesn’t need to be known before encoding all the elements.
If the length is 0, no position is encoded, but otherwise,
the encoding is that of LazyArray
, with the distinction that
the minimal distance the length of the sequence, i.e.
it’s assumed there’s no 0-byte element in the sequence.
Fields
position: NonZeroUsize
num_elems: usize
_marker: PhantomData<fn() -> T>
Implementations
sourceimpl<T: ParameterizedOverTcx> LazyArray<T>
impl<T: ParameterizedOverTcx> LazyArray<T>
fn decode<'a, 'tcx, M: Metadata<'a, 'tcx>>(
self,
metadata: M
) -> DecodeIterator<'a, 'tcx, T::Value<'tcx>>ⓘNotable traits for DecodeIterator<'a, 'tcx, T>impl<'a, 'tcx, T: Decodable<DecodeContext<'a, 'tcx>>> Iterator for DecodeIterator<'a, 'tcx, T> type Item = T;
where
T::Value<'tcx>: Decodable<DecodeContext<'a, 'tcx>>,
sourceimpl<T> LazyArray<T>
impl<T> LazyArray<T>
fn from_position_and_num_elems(
position: NonZeroUsize,
num_elems: usize
) -> LazyArray<T>
fn empty() -> LazyArray<T>
Trait Implementations
sourceimpl<'a, 'tcx, T> Decodable<DecodeContext<'a, 'tcx>> for LazyArray<T>
impl<'a, 'tcx, T> Decodable<DecodeContext<'a, 'tcx>> for LazyArray<T>
fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self
sourceimpl<'a, 'tcx, T> Encodable<EncodeContext<'a, 'tcx>> for LazyArray<T>
impl<'a, 'tcx, T> Encodable<EncodeContext<'a, 'tcx>> for LazyArray<T>
fn encode(&self, e: &mut EncodeContext<'a, 'tcx>)
sourceimpl<T: ParameterizedOverTcx> ParameterizedOverTcx for LazyArray<T>
impl<T: ParameterizedOverTcx> ParameterizedOverTcx for LazyArray<T>
type Value<'tcx> = LazyArray<<T as ParameterizedOverTcx>::Value<'tcx>>
impl<T> Copy for LazyArray<T>
Auto Trait Implementations
impl<T> RefUnwindSafe for LazyArray<T>
impl<T> Send for LazyArray<T>
impl<T> Sync for LazyArray<T>
impl<T> Unpin for LazyArray<T>
impl<T> UnwindSafe for LazyArray<T>
Blanket Implementations
sourceimpl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T
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 Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<'a, T> Captures<'a> for Twhere
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: 16 bytes