Enum Conversion 

pub(crate) enum Conversion {
    Forward(Forward),
    Types(Types),
}

Representation of an attribute, specifying which conversions should be generated: either forwarded via a blanket impl, or direct for concrete specified types.

#[<attribute>(forward)]
#[<attribute>(<types>)]

Variants

Forward(Forward)

Types(Types)

Trait Implementations

impl From<Conversion> for Either<Forward, Types>

fn from(v: Conversion) -> Self

Converts to this type from the input type.

impl From<Conversion> for FieldConversion

fn from(v: Conversion) -> Self

Converts to this type from the input type.

impl From<Either<Forward, Types>> for Conversion

fn from(v: Either<Forward, Types>) -> Self

Converts to this type from the input type.

impl Parse for Conversion

fn parse(input: ParseStream<'_>) -> Result<Self>

impl ParseMultiple for Conversion

fn parse_attr_with<P: Parser>(attr: &Attribute, parser: &P) -> Result<Self>

Parses this attribute from the provided single syn::Attribute with the provided Parser.

fn merge_attrs( prev: Spanning<Self>, new: Spanning<Self>, name: &Ident, ) -> Result<Spanning<Self>>

Merges multiple values of this attribute into a single one.

fn merge_opt_attrs( prev: Option<Spanning<Self>>, new: Option<Spanning<Self>>, name: &Ident, ) -> Result<Option<Spanning<Self>>>

Merges multiple Optional values of this attribute into a single one.

fn parse_attrs_with<P: Parser>( attrs: impl AsRef<[Attribute]>, name: &Ident, parser: &P, ) -> Result<Option<Spanning<Self>>>

Parses this attribute from the provided multiple syn::Attributes with the provided Parser, merging them, and preserving their Span.

fn parse_attrs( attrs: impl AsRef<[Attribute]>, name: &Ident, ) -> Result<Option<Spanning<Self>>>

Parses this attribute from the provided multiple syn::Attributes with the default Parse, merging them, and preserving their Span.