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| author | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-06-22 13:19:34 +0200 |
|---|---|---|
| committer | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-06-22 13:19:55 +0200 |
| commit | e994d35e9b2ca6ca08385473f9f3f6243ab509bb (patch) | |
| tree | bcfb3bd10ee56083cf9809d7005d7b51aedec76e /src/libsyntax | |
| parent | 305930cffeac1da0fd73a08d9f5680e4a49bfb9f (diff) | |
| download | rust-e994d35e9b2ca6ca08385473f9f3f6243ab509bb.tar.gz rust-e994d35e9b2ca6ca08385473f9f3f6243ab509bb.zip | |
Lint empty 'derive()' as unused attribute.
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/ext/derive.rs | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/src/libsyntax/ext/derive.rs b/src/libsyntax/ext/derive.rs index abc451c96ae..3b4243ed24f 100644 --- a/src/libsyntax/ext/derive.rs +++ b/src/libsyntax/ext/derive.rs @@ -30,10 +30,6 @@ pub fn collect_derives(cx: &mut ExtCtxt<'_>, attrs: &mut Vec<ast::Attribute>) -> match attr.parse_list(cx.parse_sess, |parser| parser.parse_path_allowing_meta(PathStyle::Mod)) { - Ok(ref traits) if traits.is_empty() => { - cx.span_warn(attr.span, "empty trait list in `derive`"); - false - } Ok(traits) => { result.extend(traits); true |