Enum syntax::ast::TyKind
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pub enum TyKind { Slice(P<Ty>), Array(P<Ty>, P<Expr>), Ptr(MutTy), Rptr(Option<Lifetime>, MutTy), BareFn(P<BareFnTy>), Never, Tup(Vec<P<Ty>>), Path(Option<QSelf>, Path), TraitObject(TyParamBounds, TraitObjectSyntax), ImplTrait(TyParamBounds), Paren(P<Ty>), Typeof(P<Expr>), Infer, ImplicitSelf, Mac(Mac), Err, }
The different kinds of types recognized by the compiler
Variants
Slice(P<Ty>)
A variable-length slice ([T]
)
Array(P<Ty>, P<Expr>)
A fixed length array ([T; n]
)
Ptr(MutTy)
A raw pointer (*const T
or *mut T
)
Rptr(Option<Lifetime>, MutTy)
A reference (&'a T
or &'a mut T
)
BareFn(P<BareFnTy>)
A bare function (e.g. fn(usize) -> bool
)
Never
The never type (!
)
Tup(Vec<P<Ty>>)
A tuple ((A, B, C, D,...)
)
Path(Option<QSelf>, Path)
A path (module::module::...::Type
), optionally
"qualified", e.g. <Vec<T> as SomeTrait>::SomeType
.
Type parameters are stored in the Path itself
TraitObject(TyParamBounds, TraitObjectSyntax)
A trait object type Bound1 + Bound2 + Bound3
where Bound
is a trait or a lifetime.
ImplTrait(TyParamBounds)
An impl Bound1 + Bound2 + Bound3
type
where Bound
is a trait or a lifetime.
Paren(P<Ty>)
No-op; kept solely so that we can pretty-print faithfully
Typeof(P<Expr>)
Unused for now
Infer
TyKind::Infer means the type should be inferred instead of it having been specified. This can appear anywhere in a type.
ImplicitSelf
Inferred type of a self
or &self
argument in a method.
Mac(Mac)
Err
Placeholder for a kind that has failed to be defined.
Trait Implementations
impl Clone for TyKind
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fn clone(&self) -> TyKind
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl PartialEq for TyKind
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fn eq(&self, __arg_0: &TyKind) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &TyKind) -> bool
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This method tests for !=
.
impl Eq for TyKind
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impl Encodable for TyKind
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impl Decodable for TyKind
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impl Hash for TyKind
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more