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Deprecated proc_macro doesn't trigger warning on build library

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Change-Id: Ib3a396e7334d209fe6c6ef425bbfc7b2ae471378
This commit is contained in:
wangxiangqing 2019-10-22 00:08:14 +08:00
parent b7a9c285a5
commit 33910f9d86
2 changed files with 25 additions and 0 deletions
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10
src/libsyntax_ext/proc_macro_harness.rs
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@ -416,6 +416,16 @@ fn mk_decls(
).map(|mut i| {
let attr = cx.meta_word(span, sym::rustc_proc_macro_decls);
i.attrs.push(cx.attribute(attr));
let deprecated_attr = attr::mk_nested_word_item(
Ident::new(sym::deprecated, span)
);
let allow_deprecated_attr = attr::mk_list_item(
Ident::new(sym::allow, span),
vec![deprecated_attr]
);
i.attrs.push(cx.attribute(allow_deprecated_attr));
i
});