Use ui_file_as_string in gdb/ada-lang.c

gdb/ChangeLog:
2016-11-08  Pedro Alves  <palves@redhat.com>

	* ada-lang.c (type_as_string): Use ui_file_as_string and return
	std::string.
	(type_as_string_and_cleanup): Delete.
	(ada_lookup_struct_elt_type): Use type_as_string.

1 files changed, 6 insertions, 25 deletions

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index d1a39bc..3c04554 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -7608,39 +7608,24 @@ ada_value_struct_elt (struct value *arg, char *name, int no_err)
 	     "a value that is not a record."));
 }
 
-/* Return a string representation of type TYPE.  Caller must free
-   result.  */
+/* Return a string representation of type TYPE.  */
 
-static char *
+static std::string
 type_as_string (struct type *type)
 {
   struct ui_file *tmp_stream = mem_fileopen ();
   struct cleanup *old_chain;
-  char *str;
 
   tmp_stream = mem_fileopen ();
   old_chain = make_cleanup_ui_file_delete (tmp_stream);
 
   type_print (type, "", tmp_stream, -1);
-  str = ui_file_xstrdup (tmp_stream, NULL);
+  std::string str = ui_file_as_string (tmp_stream);
 
   do_cleanups (old_chain);
   return str;
 }
 
-/* Return a string representation of type TYPE, and install a cleanup
-   that releases it.  */
-
-static char *
-type_as_string_and_cleanup (struct type *type)
-{
-  char *str;
-
-  str = type_as_string (type);
-  make_cleanup (xfree, str);
-  return str;
-}
-
 /* Given a type TYPE, look up the type of the component of type named NAME.
    If DISPP is non-null, add its byte displacement from the beginning of a
    structure (pointed to by a value) of type TYPE to *DISPP (does not
@@ -7681,15 +7666,11 @@ ada_lookup_struct_elt_type (struct type *type, char *name, int refok,
       || (TYPE_CODE (type) != TYPE_CODE_STRUCT
           && TYPE_CODE (type) != TYPE_CODE_UNION))
     {
-      const char *type_str;
-
       if (noerr)
         return NULL;
 
-      type_str = (type != NULL
-		  ? type_as_string_and_cleanup (type)
-		  : _("(null)"));
-      error (_("Type %s is not a structure or union type"), type_str);
+      error (_("Type %s is not a structure or union type"),
+	     type != NULL ? type_as_string (type).c_str () : _("(null)"));
     }
 
   type = to_static_fixed_type (type);
@@ -7762,7 +7743,7 @@ BadName:
       const char *name_str = name != NULL ? name : _("<null>");
 
       error (_("Type %s has no component named %s"),
-	     type_as_string_and_cleanup (type), name_str);
+	     type_as_string (type).c_str (), name_str);
     }
 
   return NULL;