parse.y (base_class.1): Produce a _TYPE not a _DECL.

cp:
	* parse.y (base_class.1): Produce a _TYPE not a _DECL.
	* semantics.c (finish_base_specifier): Accept a _TYPE not a
	_DECL.
testsuite:
	* g++.old-deja/g++.other/base1.C: New test.

From-SVN: r37817

gcc/cp/ChangeLog

 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* parse.y (base_class.1): Produce a _TYPE not a _DECL.
+	* semantics.c (finish_base_specifier): Accept a _TYPE not a
+	_DECL.
+
+2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
+
 	* spew.c (yyerror): Cope if yylval.ttype is NULL.
 
 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>

gcc/cp/parse.y

@@ -2460,13 +2460,10 @@ base_class:
 
 base_class.1:
 	  typename_sub
-		{ if ($$ == error_mark_node)
-		    ;
-                  else if (!TYPE_P ($$))
-		    $$ = error_mark_node;
-		  else 
-		    $$ = TYPE_MAIN_DECL ($1); }
+		{ if (!TYPE_P ($$))
+		    $$ = error_mark_node; }
 	| nonnested_type
+		{ $$ = TREE_TYPE ($$); }
 	;
 
 base_class_access_list:

gcc/cp/semantics.c

@@ -2068,21 +2068,19 @@ finish_base_specifier (access_specifier, base_class)
      tree access_specifier;
      tree base_class;
 {
-  tree type;
   tree result;
 
-  if (base_class == NULL_TREE)
-    {
-      error ("invalid base class");
-      type = error_mark_node;
-    }
-  else
-    type = TREE_TYPE (base_class);
-
-  if (! is_aggr_type (type, 1))
+  if (! is_aggr_type (base_class, 1))
     result = NULL_TREE;
   else
-    result = build_tree_list (access_specifier, type);
+    {
+      if (CP_TYPE_QUALS (base_class) != 0)
+        {
+          cp_error ("base class `%T' has cv qualifiers", base_class);
+          base_class = TYPE_MAIN_VARIANT (base_class);
+        }
+      result = build_tree_list (access_specifier, base_class);
+    }
 
   return result;
 }

gcc/testsuite/ChangeLog

 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* g++.old-deja/g++.other/base1.C: New test.
+
+2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
+
 	* g++.old-deja/g++.other/parse2.C: New test.
 
 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>

gcc/testsuite/g++.old-deja/g++.other/base1.C

+// Build don't link:
+
+// Copyright (C) 2000 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 25 Nov 2000 <nathan@codesourcery.com>
+
+// We lost information about which base wasn't an aggregate type, plus we
+// allowed cv qualifed bases via typedefs.
+
+typedef int I;
+typedef int cI;
+
+struct A {};
+
+typedef const A cA;
+typedef A pA;
+
+struct B : I {};  // ERROR - not an aggregate
+struct C : cI {}; // ERROR - not an aggregate
+struct D : cA {}; // ERROR - cv qualified
+struct E : pA {};