Struct FromFieldOptions

pub struct FromFieldOptions {
    pub base: OuterFrom,
    pub vis: Option<Ident>,
    pub ty: Option<Ident>,
}

Fields

base: OuterFrom

vis: Option<Ident>

ty: Option<Ident>

Implementations

impl FromFieldOptions

pub fn new(di: &DeriveInput) -> Result<Self>

Trait Implementations

impl Debug for FromFieldOptions

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

Formats the value using the given formatter.

impl<'a> From<&'a FromFieldOptions> for FromFieldImpl<'a>

fn from(v: &'a FromFieldOptions) -> Self

Converts to this type from the input type.

impl ParseAttribute for FromFieldOptions

fn parse_nested(&mut self, mi: &Meta) -> Result<()>

Read a meta-item, and apply its values to the current instance.

fn parse_attributes(self, attrs: &[Attribute]) -> Result<Self>

impl ParseData for FromFieldOptions

fn parse_variant(&mut self, variant: &Variant) -> Result<()>

Apply the next found variant to the object, returning an error if parsing goes wrong.

fn parse_field(&mut self, field: &Field) -> Result<()>

Apply the next found struct field to the object, returning an error if parsing goes wrong.

fn validate_body(&self, errors: &mut Accumulator)

Perform validation checks that require data from more than one field or variant. The default implementation does no validations. Implementors can override this method as appropriate for their use-case.

fn parse_body(self, body: &Data) -> Result<Self>

impl ToTokens for FromFieldOptions

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.