Enum rustc::ty::TypeVariants [] [src]

pub enum TypeVariants<'tcx> {
    TyBool,
    TyChar,
    TyInt(IntTy),
    TyUint(UintTy),
    TyFloat(FloatTy),
    TyAdt(&'tcx AdtDef, &'tcx Substs<'tcx>),
    TyForeign(DefId),
    TyStr,
    TyArray(Ty<'tcx>, &'tcx Const<'tcx>),
    TySlice(Ty<'tcx>),
    TyRawPtr(TypeAndMut<'tcx>),
    TyRef(Region<'tcx>, TypeAndMut<'tcx>),
    TyFnDef(DefId, &'tcx Substs<'tcx>),
    TyFnPtr(PolyFnSig<'tcx>),
    TyDynamic(Binder<&'tcx Slice<ExistentialPredicate<'tcx>>>, Region<'tcx>),
    TyClosure(DefIdClosureSubsts<'tcx>),
    TyGenerator(DefIdClosureSubsts<'tcx>, GeneratorInterior<'tcx>),
    TyNever,
    TyTuple(&'tcx Slice<Ty<'tcx>>, bool),
    TyProjection(ProjectionTy<'tcx>),
    TyAnon(DefId, &'tcx Substs<'tcx>),
    TyParam(ParamTy),
    TyInfer(InferTy),
    TyError,
}
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NB: If you change this, you'll probably want to change the corresponding AST structure in libsyntax/ast.rs as well.

Variants

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The primitive boolean type. Written as bool.

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The primitive character type; holds a Unicode scalar value (a non-surrogate code point). Written as char.

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A primitive signed integer type. For example, i32.

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A primitive unsigned integer type. For example, u32.

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A primitive floating-point type. For example, f64.

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Structures, enumerations and unions.

Substs here, possibly against intuition, may contain TyParams. That is, even after substitution it is possible that there are type variables. This happens when the TyAdt corresponds to an ADT definition and not a concrete use of it.

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The pointee of a string slice. Written as str.

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An array with the given length. Written as [T; n].

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The pointee of an array slice. Written as [T].

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A raw pointer. Written as *mut T or *const T

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A reference; a pointer with an associated lifetime. Written as &'a mut T or &'a T.

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The anonymous type of a function declaration/definition. Each function has a unique type.

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A pointer to a function. Written as fn() -> i32.

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A trait, defined with trait.

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The anonymous type of a closure. Used to represent the type of |a| a.

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The anonymous type of a generator. Used to represent the type of |a| yield a.

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The never type !

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A tuple type. For example, (i32, bool). The bool indicates whether this is a unit tuple and was created by defaulting a diverging type variable with feature(never_type) disabled. It's only purpose is for raising future-compatibility warnings for when diverging type variables start defaulting to ! instead of ().

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The projection of an associated type. For example, <T as Trait<..>>::N.

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Anonymized (impl Trait) type found in a return type. The DefId comes from the impl Trait ast::Ty node, and the substitutions are for the generics of the function in question. After typeck, the concrete type can be found in the types map.

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A type parameter; for example, T in `fn f(x: T) {}

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A type variable used during type-checking.

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A placeholder for a type which could not be computed; this is propagated to avoid useless error messages.

Trait Implementations

impl<'gcx> HashStable<StableHashingContext<'gcx>> for TypeVariants<'gcx>
[src]

[src]

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impl<'tcx> Clone for TypeVariants<'tcx>
[src]

[src]

Returns a copy of the value. Read more

1.0.0
[src]

Performs copy-assignment from source. Read more

impl<'tcx> PartialEq for TypeVariants<'tcx>
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[src]

This method tests for self and other values to be equal, and is used by ==. Read more

[src]

This method tests for !=.

impl<'tcx> Eq for TypeVariants<'tcx>
[src]

impl<'tcx> Hash for TypeVariants<'tcx>
[src]

[src]

Feeds this value into the given [Hasher]. Read more

1.3.0
[src]

Feeds a slice of this type into the given [Hasher]. Read more

impl<'tcx> Debug for TypeVariants<'tcx>
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[src]

Formats the value using the given formatter.

impl<'tcx> Encodable for TypeVariants<'tcx>
[src]

[src]

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impl<'tcx> Decodable for TypeVariants<'tcx>
[src]

[src]

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impl<'tcx> Print for TypeVariants<'tcx>
[src]

[src]

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[src]

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[src]

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

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[src]

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impl<'tcx> Display for TypeVariants<'tcx>
[src]

[src]

Formats the value using the given formatter. Read more