Enum FieldList 

pub enum FieldList {
    Named(Vec<NamedField>),
    Unnamed(Vec<UnnamedField>),
    Unit,
}

The field list of a structure.

Variants

Named(Vec<NamedField>)

A named field list, which is a list of fields that are named.

Unnamed(Vec<UnnamedField>)

An unnamed field list, which is a list of fields that are not named.

Unit

A unit field list, which is equivalent to an absence of fields.

Implementations

impl FieldList

pub fn raw(fields: &Fields) -> Result<Self>

Convert a target syn::Fields into a FieldList.

pub fn exactly_one(fields: &Fields) -> Result<(FieldRef, Type)>

Expect exactly one field in the target syn::Fields.

pub fn pattern(&self) -> Result<TokenStream>

Compute an irrefutable pattern for this field list.

Trait Implementations

impl Clone for FieldList

fn clone(&self) -> FieldList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldList

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

Formats the value using the given formatter.

impl Hash for FieldList

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 FieldList

fn eq(&self, other: &FieldList) -> 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 Eq for FieldList

impl StructuralPartialEq for FieldList