init.c (build_offset_ref): Don't call mark_used on an OVERLOAD.

	* init.c (build_offset_ref): Don't call mark_used on an OVERLOAD.
	* decl.c (select_decl): Extract a lone function from an OVERLOAD.
	(lookup_namespace_name): Likewise.
	* typeck.c (build_unary_op): Not here anymore.
	* decl2.c (do_class_using_decl): Make sure we get an identifier.
	* class.c (handle_using_decl): Ignore TYPE_DECLs.

From-SVN: r21219

6 files changed, 37 insertions, 12 deletions

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 1abd30d..85e8e05 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,13 @@
 1998-07-16  Jason Merrill  <jason@yorick.cygnus.com>
 
+	* init.c (build_offset_ref): Don't call mark_used on an OVERLOAD.
+	* decl.c (select_decl): Extract a lone function from an OVERLOAD.
+	(lookup_namespace_name): Likewise.
+	* typeck.c (build_unary_op): Not here anymore.
+
+	* decl2.c (do_class_using_decl): Make sure we get an identifier.
+	* class.c (handle_using_decl): Ignore TYPE_DECLs.
+
 	* decl.c (qualify_lookup): New fn.
 	(lookup_name_real): Use it.
 
diff --git a/gcc/cp/class.c b/gcc/cp/class.c
index cc53671..1c98b3b 100644
--- a/gcc/cp/class.c
+++ b/gcc/cp/class.c
@@ -1381,6 +1381,10 @@ handle_using_decl (using_decl, t, method_vec, fields)
 		     OVL_CURRENT (TREE_VEC_ELT (method_vec, i)));
 	return;
       }
+
+  if (! DECL_LANG_SPECIFIC (fdecl))
+    /* We don't currently handle DECL_ACCESS for TYPE_DECLs; just return.  */
+    return;
   
   for (tmp = fields; tmp; tmp = TREE_CHAIN (tmp))
     if (DECL_NAME (tmp) == name)
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 0801ab8..8071386 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -4650,7 +4650,15 @@ lookup_namespace_name (namespace, name)
     return error_mark_node;
 
   if (BINDING_VALUE (val))
-    return BINDING_VALUE (val);
+    {
+      val = BINDING_VALUE (val);
+
+      /* If we have a single function from a using decl, pull it out.  */
+      if (TREE_CODE (val) == OVERLOAD && ! really_overloaded_fn (val))
+	val = OVL_FUNCTION (val);
+      return val;
+    }
+
   cp_error ("`%D' undeclared in namespace `%D'", name, namespace);
   return error_mark_node;
 }
@@ -4760,6 +4768,11 @@ select_decl (binding, flags)
   else if (val && LOOKUP_TYPES_ONLY (flags)  && TREE_CODE (val) != TYPE_DECL
 	   && (!looking_for_template || TREE_CODE (val) != TEMPLATE_DECL))
     val = NULL_TREE;
+
+  /* If we have a single function from a using decl, pull it out.  */
+  if (val && TREE_CODE (val) == OVERLOAD && ! really_overloaded_fn (val))
+    val = OVL_FUNCTION (val);
+
   return val;
 }
 
diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index bd32d62..5384e98 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -3985,7 +3985,7 @@ ambiguous_decl (name, old, new, flags)
     type = NULL_TREE;
   if (!BINDING_TYPE (old))
     BINDING_TYPE (old) = type;
-  else if(type && BINDING_TYPE (old) != type)
+  else if (type && BINDING_TYPE (old) != type)
     {
       if (flags & LOOKUP_COMPLAIN)
         {
@@ -4604,6 +4604,10 @@ do_class_using_decl (decl)
       cp_error ("using-declaration for destructor");
       return NULL_TREE;
     }
+  if (TREE_CODE (name) == TYPE_DECL)
+    name = DECL_NAME (name);
+
+  my_friendly_assert (TREE_CODE (name) == IDENTIFIER_NODE, 980716);
 
   value = build_lang_field_decl (USING_DECL, name, void_type_node);
   DECL_INITIAL (value) = TREE_OPERAND (decl, 0);
diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index 2f807997..dfe07b5 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -1540,8 +1540,12 @@ build_offset_ref (type, name)
   if (TREE_CODE (type) == NAMESPACE_DECL)
     {
       t = lookup_namespace_name (type, name);
-      mark_used (t);
-      return convert_from_reference (t);
+      if (! type_unknown_p (t))
+	{
+	  mark_used (t);
+	  t = convert_from_reference (t);
+	}
+      return t;
     }
 
   if (type == NULL_TREE || ! is_aggr_type (type, 1))
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index 644260a..2c1421e 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -4547,14 +4547,6 @@ build_unary_op (code, xarg, noconvert)
 	  return build1 (ADDR_EXPR, unknown_type_node, arg);
 	}
 
-      /* If we have a single function from a using decl, pull it out.  */
-      if (TREE_CODE (arg) == OVERLOAD
-	  && ! really_overloaded_fn (arg))
-	{
-	  arg = OVL_FUNCTION (arg);
-	  argtype = TREE_TYPE (arg);
-	}
-
       if (TREE_CODE (arg) == OVERLOAD 
 	  || (TREE_CODE (arg) == OFFSET_REF
 	      && TREE_CODE (TREE_OPERAND (arg, 1)) == TEMPLATE_ID_EXPR))