Simplify gated cfg checking

1 files changed, 1 insertions, 8 deletions

diff --git a/src/libsyntax_ext/cfg.rs b/src/libsyntax_ext/cfg.rs
index bae0462b8d3..593bf14a018 100644
--- a/src/libsyntax_ext/cfg.rs
+++ b/src/libsyntax_ext/cfg.rs
@@ -19,7 +19,6 @@ use syntax::ext::base;
 use syntax::ext::build::AstBuilder;
 use syntax::attr;
 use syntax::parse::token;
-use syntax::config::CfgDiagReal;
 
 pub fn expand_cfg<'cx>(cx: &mut ExtCtxt,
                        sp: Span,
@@ -33,12 +32,6 @@ pub fn expand_cfg<'cx>(cx: &mut ExtCtxt,
         return DummyResult::expr(sp);
     }
 
-    let matches_cfg = {
-        let mut diag = CfgDiagReal {
-            diag: &cx.parse_sess.span_diagnostic,
-            feature_gated_cfgs: cx.feature_gated_cfgs,
-        };
-        attr::cfg_matches(&cx.cfg, &cfg, &mut diag)
-    };
+    let matches_cfg = attr::cfg_matches(&cx.cfg, &cfg, cx.parse_sess, cx.ecfg.features);
     MacEager::expr(cx.expr_bool(sp, matches_cfg))
 }