Enum Type

pub enum Type {
    ResolvedPath(Path),
    DynTrait(DynTrait),
    Generic(String),
    Primitive(String),
    FunctionPointer(Box<FunctionPointer>),
    Tuple(Vec<Type>),
    Slice(Box<Type>),
    Array {
        type_: Box<Type>,
        len: String,
    },
    Pat {
        type_: Box<Type>,
        /* private fields */
    },
    ImplTrait(Vec<GenericBound>),
    Infer,
    RawPointer {
        is_mutable: bool,
        type_: Box<Type>,
    },
    BorrowedRef {
        lifetime: Option<String>,
        is_mutable: bool,
        type_: Box<Type>,
    },
    QualifiedPath {
        name: String,
        args: Box<GenericArgs>,
        self_type: Box<Type>,
        trait_: Option<Path>,
    },
}

A type.

Variants

ResolvedPath(Path)

Structs, enums, unions and type aliases, e.g. std::option::Option<u32>

DynTrait(DynTrait)

Dynamic trait object type (dyn Trait).

Generic(String)

Parameterized types. The contained string is the name of the parameter.

Primitive(String)

Built-in numeric types (e.g. u32, f32), bool, char.

FunctionPointer(Box<FunctionPointer>)

A function pointer type, e.g. fn(u32) -> u32, extern "C" fn() -> *const u8

Tuple(Vec<Type>)

A tuple type, e.g. (String, u32, Box<usize>)

Slice(Box<Type>)

An unsized slice type, e.g. [u32].

Array

An array type, e.g. [u32; 15]

Fields

type_: Box<Type>

The type of the contained element.

len: String

The stringified expression that is the length of the array.

Keep in mind that it’s not guaranteed to match the actual source code of the expression.

Pat

A pattern type, e.g. u32 is 1..

See the tracking issue

Fields

type_: Box<Type>

The base type, e.g. the u32 in u32 is 1..

ImplTrait(Vec<GenericBound>)

An opaque type that satisfies a set of bounds, impl TraitA + TraitB + ...

Infer

A type that’s left to be inferred, _

RawPointer

A raw pointer type, e.g. *mut u32, *const u8, etc.

Fields

is_mutable: bool

This is true for *mut _ and false for *const _.

type_: Box<Type>

The type of the pointee.

BorrowedRef

&'a mut String, &str, etc.

Fields

lifetime: Option<String>

The name of the lifetime of the reference, if provided.

is_mutable: bool

This is true for &mut i32 and false for &i32

type_: Box<Type>

The type of the pointee, e.g. the i32 in &'a mut i32

QualifiedPath

Associated types like <Type as Trait>::Name and T::Item where T: Iterator or inherent associated types like Struct::Name.

Fields

name: String

The name of the associated type in the parent type.

<core::array::IntoIter<u32, 42> as Iterator>::Item
//                                            ^^^^

args: Box<GenericArgs>

The generic arguments provided to the associated type.

<core::slice::IterMut<'static, u32> as BetterIterator>::Item<'static>
//                                                          ^^^^^^^^^

self_type: Box<Type>

The type with which this type is associated.

<core::array::IntoIter<u32, 42> as Iterator>::Item
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

trait_: Option<Path>

None iff this is an inherent associated type.

Trait Implementations

impl Clone for Type

fn clone(&self) -> Type

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Type

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Type

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Type

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Type

fn eq(&self, other: &Type) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Type

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Type

impl StructuralPartialEq for Type

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: 80 bytes

Size for each variant:

• ResolvedPath: 48 bytes
• DynTrait: 56 bytes
• Generic: 32 bytes
• Primitive: 32 bytes
• FunctionPointer: 16 bytes
• Tuple: 32 bytes
• Slice: 16 bytes
• Array: 40 bytes
• Pat: 40 bytes
• ImplTrait: 32 bytes
• Infer: 0 bytes
• RawPointer: 24 bytes
• BorrowedRef: 48 bytes
• QualifiedPath: 80 bytes