* c-lang.c: #include diagnostic.h

	(c_tree_printer): New function.
	(lang_init): Initialize lang_printer.

	* Makefile.in (c-lang.o): Depends on diagnostic.h


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35818 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 40 insertions, 0 deletions

diff --git a/gcc/c-lang.c b/gcc/c-lang.c
index 504f342c70f..ab28b0d44ce 100644
--- a/gcc/c-lang.c
+++ b/gcc/c-lang.c
@@ -28,10 +28,13 @@ Boston, MA 02111-1307, USA.  */
 #include "c-tree.h"
 #include "c-lex.h"
 #include "toplev.h"
+#include "diagnostic.h"
 #include "output.h"
 #include "flags.h"
 #include "ggc.h"
 
+static int c_tree_printer PARAMS ((output_buffer *));
+
 #if USE_CPPLIB
 #include "cpplib.h"
 extern char *yy_cur;
@@ -92,6 +95,8 @@ lang_init ()
   restore_lang_status = &pop_c_function_context;
   mark_lang_status = &mark_c_function_context;
 
+  lang_printer = c_tree_printer;
+
   c_parse_init ();
 }
 
@@ -240,3 +245,38 @@ finish_file ()
     }
 #endif
 }
+
+/* Called during diagnostic message formatting process to print a
+   source-level entity onto BUFFER.  The meaning of the format specifiers
+   is as follows:
+   %D: a general decl,
+   %F: a function declaration,
+   %T: a type.
+
+   These format specifiers form a subset of the format specifiers set used
+   by the C++ front-end.
+   Please notice when called, the `%' part was already skipped by the
+   diagnostic machinery.  */
+static int
+c_tree_printer (buffer)
+     output_buffer *buffer;
+{
+  tree t = va_arg (output_buffer_format_args (buffer), tree);
+
+  switch (*output_buffer_text_cursor (buffer))
+    {
+    case 'D':
+    case 'F':
+    case 'T':
+      {
+        const char *n = DECL_NAME (t)
+          ? (*decl_printable_name) (t, 2)
+          : "({anonymous})";
+        output_add_string (buffer, n);
+      }
+      return 1;
+
+    default:
+      return 0;
+    }
+}