Trait darling::FromDeriveInput

[+] Show declaration

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

[−] Expand description

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

pub fn from_derive_input(input: &DeriveInput) -> Result<Self, Error>[−]

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

Implementations on Foreign Types

impl FromDeriveInput for DeriveInput[−]

[+] Show hidden undocumented items

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

impl FromDeriveInput for ()[−]

[+] Show hidden undocumented items

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

Implementors

impl FromDeriveInput for Ignored[+]

[+] Show hidden undocumented items

pub fn from_derive_input(&DeriveInput) -> Result<Ignored, Error>

impl<T> FromDeriveInput for SpannedValue<T> where
    T: FromDeriveInput, [+]

[+] Show hidden undocumented items

pub fn from_derive_input(value: &DeriveInput) -> Result<SpannedValue<T>, Error>

impl<T> FromDeriveInput for WithOriginal<T, DeriveInput> where
    T: FromDeriveInput, [+]

[+] Show hidden undocumented items

pub fn from_derive_input(
    value: &DeriveInput
) -> Result<WithOriginal<T, DeriveInput>, Error>

impl FromDeriveInput for AggrFunctionOpts