From b9a7d8179530c752f068487822281b8604d34614 Mon Sep 17 00:00:00 2001
From: David Malcolm <dmalcolm@redhat.com>
Date: Fri, 1 Aug 2025 10:38:38 -0400
Subject: [PATCH 74/98] FIXME: WIP on error and warning counts (PR
 diagnostics/26061)

---
 gcc/diagnostics/context.h    |  1 +
 gcc/diagnostics/text-sink.cc | 34 ++++++++++++++++++++++++++++++++++
 gcc/diagnostics/text-sink.h  |  2 ++
 3 files changed, 37 insertions(+)

diff --git a/gcc/diagnostics/context.h b/gcc/diagnostics/context.h
index ad1192e93a35..afb8e9e0b91b 100644
--- a/gcc/diagnostics/context.h
+++ b/gcc/diagnostics/context.h
@@ -476,6 +476,7 @@ public:
   {
     return m_diagnostic_counters.get_count (kind);
   }
+  const counters &get_counters () const { return m_diagnostic_counters; }
 
   /* Option-related member functions.  */
   inline bool option_enabled_p (option_id opt_id) const
diff --git a/gcc/diagnostics/text-sink.cc b/gcc/diagnostics/text-sink.cc
index 6f97ca54329c..3f9744cfac3e 100644
--- a/gcc/diagnostics/text-sink.cc
+++ b/gcc/diagnostics/text-sink.cc
@@ -132,6 +132,9 @@ text_sink_buffer::flush ()
 
 text_sink::~text_sink ()
 {
+  pp_set_prefix (get_printer (), nullptr);
+  report_error_and_warning_counts (m_context.get_counters ());
+
   /* Some of the errors may actually have been warnings.  */
   if (m_context.diagnostic_count (kind::werror))
     {
@@ -156,6 +159,37 @@ text_sink::~text_sink ()
     }
 }
 
+// FIXME: what about werror ?
+
+void
+text_sink::report_error_and_warning_counts (const counters &c)
+{
+  const int num_errors
+    = (c.get_count (kind::error)
+       + c.get_count (kind::werror));
+  const int num_warnings = c.get_count (kind::warning);
+  if (num_errors || num_warnings)
+    {
+      pretty_printer *pp = get_printer ();
+      if (num_errors)
+	{
+	  pp_printf_n (pp, num_errors,
+		       "%s: %r%i error%R generated",
+		       "%s: %r%i errors%R generated",
+		       progname, "error", num_errors);
+	  pp_newline_and_flush (pp);
+	}
+      if (num_warnings)
+	{
+	  pp_printf_n (pp, num_warnings,
+		       "%s: %r%i warning%R generated",
+		       "%s: %r%i warnings%R generated",
+		       progname, "warning", num_warnings);
+	  pp_newline_and_flush (pp);
+	}
+    }
+}
+
 void
 text_sink::dump (FILE *outfile, int indent) const
 {
diff --git a/gcc/diagnostics/text-sink.h b/gcc/diagnostics/text-sink.h
index b756a49d0471..250e10d677e9 100644
--- a/gcc/diagnostics/text-sink.h
+++ b/gcc/diagnostics/text-sink.h
@@ -142,6 +142,8 @@ public:
 
   static const char *maybe_line_and_column (int line, int col);
 
+  void report_error_and_warning_counts (const counters &);
+
 protected:
   void print_any_cwe (const diagnostic_info &diagnostic);
   void print_any_rules (const diagnostic_info &diagnostic);
-- 
2.49.0