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Add support for until to the deprecated macro

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This allows easily annotating the `until` version in impl blocks
using the `#[scope]` macro.
This commit is contained in:
tinger 2025-07-16 11:53:46 +02:00
parent e6ac31e92c
commit 44c573d1a0
1 changed files with 26 additions and 7 deletions
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27
crates/typst-macros/src/scope.rs
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@ -1,7 +1,8 @@
use heck::ToKebabCase;
use proc_macro2::TokenStream;
use quote::quote;
use syn::{Result, parse_quote};
use syn::punctuated::Punctuated;
use syn::{MetaNameValue, Result, Token, parse_quote};
use crate::util::{BareType, foundations};
@ -52,15 +53,33 @@ pub fn scope(_: TokenStream, item: syn::Item) -> Result<TokenStream> {
_ => bail!(child, "unexpected item in scope"),
};
if let Some(message) = attrs.iter().find_map(|attr| match &attr.meta {
if let Some(attr) = attrs.iter().find(|attr| attr.path().is_ident("deprecated")) {
match &attr.meta {
syn::Meta::NameValue(pair) if pair.path.is_ident("deprecated") => {
Some(&pair.value)
let message = &pair.value;
def = quote! { #def.deprecated(#message) }
}
_ => None,
syn::Meta::List(list) if list.path.is_ident("deprecated") => {
let args = list.parse_args_with(
Punctuated::<MetaNameValue, Token![,]>::parse_separated_nonempty,
)?;
if let Some(message) = args.iter().find_map(|pair| {
pair.path.is_ident("message").then_some(&pair.value)
}) {
def = quote! { #def.deprecated(#message) }
}
if let Some(version) = args.iter().find_map(|pair| {
pair.path.is_ident("until").then_some(&pair.value)
}) {
def = quote! { #def.deprecated_until(#version) }
}
}
_ => {}
}
}
definitions.push(def);
}