Trait darling::FromDeriveInput
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pub trait FromDeriveInput { 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.
Implementations on Foreign Types
impl FromDeriveInput for ()
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fn from_derive_input(&DeriveInput) -> Result<(), Error>
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impl FromDeriveInput for DeriveInput
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fn from_derive_input(input: &DeriveInput) -> Result<DeriveInput, Error>
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Implementors
impl FromDeriveInput for Ignored