1 files changed, 16 insertions, 4 deletions
diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs
index c2a2326d301..c978297295d 100644
--- a/compiler/rustc_expand/src/build.rs
+++ b/compiler/rustc_expand/src/build.rs
@@ -616,11 +616,23 @@ impl<'a> ExtCtxt<'a> {
         self.item(span, name, AttrVec::new(), ast::ItemKind::Const(def, ty, Some(expr)))
     }
 
-    pub fn attribute(&self, mi: ast::MetaItem) -> ast::Attribute {
-        attr::mk_attr_outer(&self.sess.parse_sess.attr_id_generator, mi)
+    // Builds `#[name]`.
+    pub fn attr_word(&self, name: Symbol, span: Span) -> ast::Attribute {
+        let g = &self.sess.parse_sess.attr_id_generator;
+        attr::mk_attr_word(g, ast::AttrStyle::Outer, name, span)
     }
 
-    pub fn meta_word(&self, sp: Span, w: Symbol) -> ast::MetaItem {
-        attr::mk_word_item(Ident::new(w, sp))
+    // Builds `#[name = val]`.
+    //
+    // Note: `span` is used for both the identifer and the value.
+    pub fn attr_name_value_str(&self, name: Symbol, val: Symbol, span: Span) -> ast::Attribute {
+        let g = &self.sess.parse_sess.attr_id_generator;
+        attr::mk_attr_name_value_str(g, ast::AttrStyle::Outer, name, val, span)
+    }
+
+    // Builds `#[outer(inner)]`.
+    pub fn attr_nested_word(&self, outer: Symbol, inner: Symbol, span: Span) -> ast::Attribute {
+        let g = &self.sess.parse_sess.attr_id_generator;
+        attr::mk_attr_nested_word(g, ast::AttrStyle::Outer, outer, inner, span)
     }
 }