1 files changed, 13 insertions, 0 deletions
diff --git a/bbot/diagnostics.hxx b/bbot/diagnostics.hxx
index bfeeb2a..36a3cf2 100644
--- a/bbot/diagnostics.hxx
+++ b/bbot/diagnostics.hxx
@@ -129,6 +129,19 @@ namespace bbot
                              r.flush ();
                              throw failed ();
                            }) {}
+
+    // If hard is false, then we fail as an error (but still throw).
+    //
+    simple_prologue
+    operator() (bool hard = true) const
+    {
+      if (hard)
+        return simple_prologue (indent_, epilogue_, type_, name_);
+
+      simple_prologue r (error ());
+      r.epilogue = epilogue_;
+      return r;
+    }
   };
 
   using fail_mark = butl::diag_mark<fail_mark_base>;