Enum rustc_hir::VariantData
source · pub enum VariantData<'hir> {
Struct(&'hir [FieldDef<'hir>], bool),
Tuple(&'hir [FieldDef<'hir>], HirId, LocalDefId),
Unit(HirId, LocalDefId),
}
Expand description
Fields and constructor IDs of enum variants and structs.
Variants§
Struct(&'hir [FieldDef<'hir>], bool)
A struct variant.
E.g., Bar { .. }
as in enum Foo { Bar { .. } }
.
Tuple(&'hir [FieldDef<'hir>], HirId, LocalDefId)
A tuple variant.
E.g., Bar(..)
as in enum Foo { Bar(..) }
.
Unit(HirId, LocalDefId)
A unit variant.
E.g., Bar = ..
as in enum Foo { Bar = .. }
.
Implementations§
source§impl<'hir> VariantData<'hir>
impl<'hir> VariantData<'hir>
pub fn ctor(&self) -> Option<(CtorKind, HirId, LocalDefId)>
pub fn ctor_kind(&self) -> Option<CtorKind>
sourcepub fn ctor_hir_id(&self) -> Option<HirId>
pub fn ctor_hir_id(&self) -> Option<HirId>
Return the HirId
of this variant’s constructor, if it has one.
sourcepub fn ctor_def_id(&self) -> Option<LocalDefId>
pub fn ctor_def_id(&self) -> Option<LocalDefId>
Return the LocalDefId
of this variant’s constructor, if it has one.
Trait Implementations§
source§impl<'hir> Clone for VariantData<'hir>
impl<'hir> Clone for VariantData<'hir>
source§fn clone(&self) -> VariantData<'hir>
fn clone(&self) -> VariantData<'hir>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<'hir> Debug for VariantData<'hir>
impl<'hir> Debug for VariantData<'hir>
source§impl<'hir, __CTX> HashStable<__CTX> for VariantData<'hir>where
__CTX: HashStableContext,
impl<'hir, __CTX> HashStable<__CTX> for VariantData<'hir>where __CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
impl<'hir> Copy for VariantData<'hir>
Auto Trait Implementations§
impl<'hir> RefUnwindSafe for VariantData<'hir>
impl<'hir> !Send for VariantData<'hir>
impl<'hir> !Sync for VariantData<'hir>
impl<'hir> Unpin for VariantData<'hir>
impl<'hir> UnwindSafe for VariantData<'hir>
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
Mutably borrows from an owned value. Read more
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: 32 bytes
Size for each variant:
Struct
: 23 bytesTuple
: 31 bytesUnit
: 15 bytes