pub enum Namespace {
TypeNS,
ValueNS,
MacroNS,
}
Expand description
Different kinds of symbols can coexist even if they share the same textual name. Therefore, they each have a separate universe (known as a “namespace”).
Variants§
TypeNS
The type namespace includes struct
s, enum
s, union
s, trait
s, and mod
s
(and, by extension, crates).
Note that the type namespace includes other items; this is not an exhaustive list.
ValueNS
The value namespace includes fn
s, const
s, static
s, and local variables (including function arguments).
MacroNS
The macro namespace includes macro_rules!
macros, declarative macro
s,
procedural macros, attribute macros, derive
macros, and non-macro attributes
like #[inline]
and #[rustfmt::skip]
.
Implementations§
Trait Implementations§
source§impl<__CTX> HashStable<__CTX> for Namespacewhere
__CTX: HashStableContext,
impl<__CTX> HashStable<__CTX> for Namespacewhere __CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
source§impl Ord for Namespace
impl Ord for Namespace
source§impl PartialEq<Namespace> for Namespace
impl PartialEq<Namespace> for Namespace
source§impl PartialOrd<Namespace> for Namespace
impl PartialOrd<Namespace> for Namespace
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl<CTX: HashStableContext> ToStableHashKey<CTX> for Namespace
impl<CTX: HashStableContext> ToStableHashKey<CTX> for Namespace
impl Copy for Namespace
impl Eq for Namespace
impl StructuralEq for Namespace
impl StructuralPartialEq for Namespace
Auto Trait Implementations§
impl RefUnwindSafe for Namespace
impl Send for Namespace
impl Sync for Namespace
impl Unpin for Namespace
impl UnwindSafe for Namespace
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
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: 1 byte
Size for each variant:
TypeNS
: 0 bytesValueNS
: 0 bytesMacroNS
: 0 bytes