1 | // This is needed for 1.31.0 to keep compiling |
2 | extern crate proc_macro; |
3 | |
4 | use darling_core::{derive, Error}; |
5 | use proc_macro::TokenStream; |
6 | use syn::parse_macro_input; |
7 | |
8 | #[proc_macro_derive (FromMeta, attributes(darling))] |
9 | pub fn derive_from_meta(input: TokenStream) -> TokenStream { |
10 | derive::from_meta(&parse_macro_input!(input)).into() |
11 | } |
12 | |
13 | #[proc_macro_derive (FromMetaItem, attributes(darling))] |
14 | pub fn derive_from_meta_item(_input: TokenStream) -> TokenStream { |
15 | ErrorTokenStream::custom(msg:"darling::FromMetaItem has been replaced by darling::FromMeta" ) |
16 | .write_errors() |
17 | .into() |
18 | } |
19 | |
20 | #[proc_macro_derive (FromAttributes, attributes(darling))] |
21 | pub fn derive_from_attributes(input: TokenStream) -> TokenStream { |
22 | derive::from_attributes(&parse_macro_input!(input)).into() |
23 | } |
24 | |
25 | #[proc_macro_derive (FromDeriveInput, attributes(darling))] |
26 | pub fn derive_from_input(input: TokenStream) -> TokenStream { |
27 | derive::from_derive_input(&parse_macro_input!(input)).into() |
28 | } |
29 | |
30 | #[proc_macro_derive (FromField, attributes(darling))] |
31 | pub fn derive_field(input: TokenStream) -> TokenStream { |
32 | derive::from_field(&parse_macro_input!(input)).into() |
33 | } |
34 | |
35 | #[proc_macro_derive (FromTypeParam, attributes(darling))] |
36 | pub fn derive_type_param(input: TokenStream) -> TokenStream { |
37 | derive::from_type_param(&parse_macro_input!(input)).into() |
38 | } |
39 | |
40 | #[proc_macro_derive (FromVariant, attributes(darling))] |
41 | pub fn derive_variant(input: TokenStream) -> TokenStream { |
42 | derive::from_variant(&parse_macro_input!(input)).into() |
43 | } |
44 | |