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upgrade to syn 2.x

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-07-26 20:40:07 +00:00
parent 3b5607ecdc
commit ca82b59c6f
11 changed files with 138 additions and 99 deletions
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21
src/macros/implement.rs
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@ -1,23 +1,26 @@
use proc_macro::TokenStream;
use quote::{quote, ToTokens};
use syn::{parse_macro_input, AttributeArgs, ItemFn, Meta, NestedMeta};
use quote::quote;
use syn::{ItemFn, Meta, MetaList};
pub(super) fn implement(args: TokenStream, input: TokenStream) -> TokenStream {
let args = parse_macro_input!(args as AttributeArgs);
let item = parse_macro_input!(input as ItemFn);
use crate::Result;
let NestedMeta::Meta(Meta::Path(receiver)) = args
pub(super) fn implement(item: ItemFn, args: &[Meta]) -> Result<TokenStream> {
let Meta::List(MetaList {
path,
..
}) = &args
.first()
.expect("missing path to trait or item to implement")
else {
panic!("invalid path to item for implement");
};
let input = item;
let out = quote! {
impl #receiver {
#item
impl #path {
#input
}
};
out.into_token_stream().into()
Ok(out.into())
}