Trait FromDeriveInput

pub trait FromDeriveInput: Sized {
    // Required method
    fn from_derive_input(input: &DeriveInput) -> Result<Self, Error>;
}

Creates an instance by parsing an entire proc-macro derive input, including the, identity, generics, and visibility of the type.

This trait should either be derived or manually implemented by a type in the proc macro crate which is directly using darling. It is unlikely that these implementations will be reusable across crates.

Required Methods

fn from_derive_input(input: &DeriveInput) -> Result<Self, Error>

Create an instance from syn::DeriveInput, or return an error.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl FromDeriveInput for ()

fn from_derive_input(_: &DeriveInput) -> Result<(), Error>

impl FromDeriveInput for DeriveInput

fn from_derive_input(input: &DeriveInput) -> Result<DeriveInput, Error>

Implementors

impl FromDeriveInput for Ignored

impl<T> FromDeriveInput for SpannedValue<T>

where T: FromDeriveInput,

impl<T> FromDeriveInput for WithOriginal<T, DeriveInput>

where T: FromDeriveInput,