[−][src]Struct rustc::ty::VariantDef
🔬 This is a nightly-only experimental API. (rustc_private
)
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instead?
Fields
did: DefId
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)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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The variant's DefId. If this is a tuple-like struct, this is the DefId of the struct's ctor.
name: Name
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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discr: VariantDiscr
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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fields: Vec<FieldDef>
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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ctor_kind: CtorKind
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flags: VariantFlags
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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Methods
impl<'a, 'gcx, 'tcx> VariantDef
[src]
impl<'a, 'gcx, 'tcx> VariantDef
fn uninhabited_from(
&self,
visited: &mut FxHashMap<DefId, FxHashSet<&'tcx Substs<'tcx>>>,
tcx: TyCtxt<'a, 'gcx, 'tcx>,
substs: &'tcx Substs<'tcx>,
adt_kind: AdtKind
) -> DefIdForest
[src]
fn uninhabited_from(
&self,
visited: &mut FxHashMap<DefId, FxHashSet<&'tcx Substs<'tcx>>>,
tcx: TyCtxt<'a, 'gcx, 'tcx>,
substs: &'tcx Substs<'tcx>,
adt_kind: AdtKind
) -> DefIdForest
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
Calculate the forest of DefIds from which this variant is visibly uninhabited.
impl<'a, 'gcx, 'tcx> VariantDef
[src]
impl<'a, 'gcx, 'tcx> VariantDef
pub fn new(
tcx: TyCtxt<'a, 'gcx, 'tcx>,
did: DefId,
name: Name,
discr: VariantDiscr,
fields: Vec<FieldDef>,
adt_kind: AdtKind,
ctor_kind: CtorKind
) -> Self
[src]
pub fn new(
tcx: TyCtxt<'a, 'gcx, 'tcx>,
did: DefId,
name: Name,
discr: VariantDiscr,
fields: Vec<FieldDef>,
adt_kind: AdtKind,
ctor_kind: CtorKind
) -> Self
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
Create a new VariantDef
.
did
is the DefId used for the variant - for tuple-structs, it is the constructor DefId, and for everything else, it is the variant DefId.attribute_def_id
is the DefId that has the variant's attributes.
pub fn is_field_list_non_exhaustive(&self) -> bool
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pub fn is_field_list_non_exhaustive(&self) -> bool
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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Trait Implementations
impl Debug for VariantDef
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impl Debug for VariantDef
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for VariantDef
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impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for VariantDef
fn hash_stable<W: StableHasherResult>(
&self,
__ctx: &mut StableHashingContext<'a>,
__hasher: &mut StableHasher<W>
)
[src]
fn hash_stable<W: StableHasherResult>(
&self,
__ctx: &mut StableHashingContext<'a>,
__hasher: &mut StableHasher<W>
)
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
Auto Trait Implementations
impl !Send for VariantDef
impl !Send for VariantDef
impl !Sync for VariantDef
impl !Sync for VariantDef
Blanket Implementations
impl<T> MaybeResult for T
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impl<T> MaybeResult for T
fn from_ok(T) -> T
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fn from_ok(T) -> T
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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fn map_same<F>(Self, F) -> T where
F: FnOnce(T) -> T,
[src]
fn map_same<F>(Self, F) -> T where
F: FnOnce(T) -> T,
🔬 This is a nightly-only experimental API. (rustc_private
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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impl<'a, T> Captures for T where
T: ?Sized,
[src]
impl<'a, T> Captures for T where
T: ?Sized,
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
[src]
impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
[src]
impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
ⓘImportant traits for &'a mut Rfn borrow(&self) -> &T
[src]
fn borrow(&self) -> &T
Immutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
[src]
impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized,
[src]
impl<T> BorrowMut for T where
T: ?Sized,
ⓘImportant traits for &'a mut Rfn borrow_mut(&mut self) -> &mut T
[src]
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
[src]
fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more
impl<E> SpecializationError for E
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impl<E> SpecializationError for E
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
[src]
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T
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impl<T> Erased for T
impl<T> Send for T where
T: ?Sized,
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impl<T> Send for T where
T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
[src]
impl<T> Sync for T where
T: ?Sized,
impl<T> Erased for T
impl<T> Erased for T