rustdoc: hide macro export statements from docs

src/librustdoc/clean/inline.rs

@@ -97,6 +97,9 @@ pub fn try_inline(cx: &DocContext, def: Def, name: ast::Name, visited: &mut FxHa
  record_extern_fqn(cx, did, clean::TypeKind::Const);
  clean::ConstantItem(build_const(cx, did))
  }
+ // Macros are eagerly inlined back in visit_ast, don't show their export statements
+ // FIXME(50647): the eager inline does not take doc(hidden)/doc(no_inline) into account
+ Def::Macro(..) => return Some(Vec::new()),
  _ => return None,
  };
  cx.renderinfo.borrow_mut().inlined.insert(did);

src/librustdoc/visit_ast.rs

@@ -219,6 +219,8 @@ impl<'a, 'tcx, 'rcx> RustdocVisitor<'a, 'tcx, 'rcx> {
  if let Some(exports) = self.cx.tcx.module_exports(def_id) {
  for export in exports.iter().filter(|e| e.vis == Visibility::Public) {
  if let Def::Macro(def_id, ..) = export.def {
+ // FIXME(50647): this eager macro inlining does not take
+ // doc(hidden)/doc(no_inline) into account
  if def_id.krate == LOCAL_CRATE {
  continue // These are `krate.exported_macros`, handled in `self.visit()`.
  }
@@ -237,6 +239,7 @@ impl<'a, 'tcx, 'rcx> RustdocVisitor<'a, 'tcx, 'rcx> {
  unreachable!()
  };
 
+ debug!("inlining macro {}", def.ident.name);
  om.macros.push(Macro {
  def_id,
  attrs: def.attrs.clone().into(),
@@ -561,6 +564,7 @@ impl<'a, 'tcx, 'rcx> RustdocVisitor<'a, 'tcx, 'rcx> {
 
  // convert each exported_macro into a doc item
  fn visit_local_macro(&self, def: &hir::MacroDef) -> Macro {
+ debug!("visit_local_macro: {}", def.name);
  let tts = def.body.trees().collect::<Vec<_>>();
  // Extract the spans of all matchers. They represent the "interface" of the macro.
  let matchers = tts.chunks(4).map(|arm| arm[0].span()).collect();

src/test/rustdoc/pub-use-extern-macros.rs

@@ -15,6 +15,7 @@
 extern crate macros;
 
 // @has pub_use_extern_macros/macro.bar.html
+// @!has pub_use_extern_macros/index.html 'pub use macros::bar;'
 pub use macros::bar;
 
 // @has pub_use_extern_macros/macro.baz.html