Enum amplify_syn::TypeClass

pub enum TypeClass {
    Array,
    BareFn,
    Group,
    ImplTrait,
    Infer,
    Macro,
    Never,
    Paren,
    Path,
    Ptr,
    Reference,
    Slice,
    TraitObject,
    Tuple,
    Any,
}

Constrains for the possible types that a Rust value could have.

Variants

Array

A fixed size array type: [T; n].

BareFn

A bare function type: fn(usize) -> bool.

Group

A type contained within invisible delimiters.

ImplTrait

An impl Bound1 + Bound2 + Bound3 type where Bound is a trait or a lifetime.

Infer

Indication that a type should be inferred by the compiler: _.

Macro

A macro in the type position.

Never

The never type: !.

Paren

A parenthesized type equivalent to the inner type.

Path

A path like std::slice::Iter, optionally qualified with a self-type as in <Vec<T> as SomeTrait>::Associated.

Ptr

A raw pointer type: *const T or *mut T.

Reference

A reference type: &'a T or &'a mut T.

Slice

A dynamically sized slice type: [T].

TraitObject

A trait object type Bound1 + Bound2 + Bound3 where Bound is a trait or a lifetime.

Tuple

A tuple type: (A, B, C, String).

Any

Tokens in type position not interpreted by Syn.

Implementations

impl TypeClass

pub fn check( self, ty: &Type, attr: impl ToString, arg: impl ToString ) -> Result<(), Error>

Checks the Type against current requirements, generating Error if the requirements are not met.

Trait Implementations

impl Clone for TypeClass

fn clone(&self) -> TypeClass

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TypeClass

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

Formats the value using the given formatter.

impl From<&Type> for TypeClass

fn from(ty: &Type) -> Self

Converts to this type from the input type.

impl From<Type> for TypeClass

fn from(ty: Type) -> Self

Converts to this type from the input type.

impl From<TypeClass> for ValueClass

fn from(cls: TypeClass) -> Self

Converts to this type from the input type.

impl Hash for TypeClass

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 Ord for TypeClass

fn cmp(&self, other: &TypeClass) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<TypeClass> for TypeClass

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

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

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

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

impl PartialOrd<TypeClass> for TypeClass

fn partial_cmp(&self, other: &TypeClass) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for TypeClass

impl Eq for TypeClass

impl StructuralEq for TypeClass

impl StructuralPartialEq for TypeClass