search.c (lookup_field_r): If looking for type and non-TYPE_DECL is found...

	* search.c (lookup_field_r): If looking for type and non-TYPE_DECL
	is found, look first if name does not match the structure name.

	* g++.old-deja/g++.other/lookup23.C: New test.

From-SVN: r41447

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 8d84a8bfe81eee037eee628c225ea8b3e900bde9..24af2b4c4f91804b58cac716afc76362912be52e 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2001-04-20  Jakub Jelinek  <jakub@redhat.com>
+
+       * search.c (lookup_field_r): If looking for type and non-TYPE_DECL
+       is found, look first if name does not match the structure name.
+
 2001-04-19  Mark Mitchell  <mark@codesourcery.com>
 
        * cp-tree.h (DECL_LANGUAGE): Don't assume DECL_LANG_SPECIFIC is

diff --git a/gcc/cp/search.c b/gcc/cp/search.c
index 1c0a50d949b15c93e4f512aa783e7030627633fd..6256f14a29d3e3e6348ca085056354cc578385c2 100644 (file)
--- a/gcc/cp/search.c
+++ b/gcc/cp/search.c
@@ -1384,11 +1384,27 @@ lookup_field_r (binfo, data)
      we ignore all non-types we find.  */
   if (lfi->want_type && TREE_CODE (nval) != TYPE_DECL)
     {
-      nval = purpose_member (lfi->name, CLASSTYPE_TAGS (type));
-      if (nval)
-       nval = TYPE_MAIN_DECL (TREE_VALUE (nval));
-      else 
-       return NULL_TREE;
+      if (lfi->name == TYPE_IDENTIFIER (type))
+       {
+         /* If the aggregate has no user defined constructors, we allow
+            it to have fields with the same name as the enclosing type.
+            If we are looking for that name, find the corresponding
+            TYPE_DECL.  */
+         for (nval = TREE_CHAIN (nval); nval; nval = TREE_CHAIN (nval))
+           if (DECL_NAME (nval) == lfi->name
+               && TREE_CODE (nval) == TYPE_DECL)
+             break;
+       }
+      else
+       nval = NULL_TREE;
+      if (!nval)
+       {
+         nval = purpose_member (lfi->name, CLASSTYPE_TAGS (type));
+         if (nval)
+           nval = TYPE_MAIN_DECL (TREE_VALUE (nval));
+         else 
+           return NULL_TREE;
+       }
     }
 
   /* You must name a template base class with a template-id.  */

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 78f191ff07424414509631d832d392c01b7ca105..1ceeb4083c055a64eadcebf2484d494033e2e19c 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2001-04-20  Jakub Jelinek  <jakub@redhat.com>
+
+       * g++.old-deja/g++.other/lookup23.C: New test.
+
 2001-04-20  Jakub Jelinek  <jakub@redhat.com>
 
        * gcc.c-torture/execute/20010403-1.c: New test.

diff --git a/gcc/testsuite/g++.old-deja/g++.other/lookup23.C b/gcc/testsuite/g++.old-deja/g++.other/lookup23.C
new file mode 100644 (file)
index 0000000..9deee9e
--- /dev/null
+++ b/gcc/testsuite/g++.old-deja/g++.other/lookup23.C
@@ -0,0 +1,13 @@
+// Test for proper handling of type lookup if base class has field with the
+// same name as the containing class.
+// Build don't link:
+
+struct a { int a; };
+struct b : a {};
+
+b x;
+
+void foo ()
+{
+  x.a = 22;
+}