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From: "asmwarrior at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug python/29079] Python pretty printer does not work for class
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Date: Thu, 21 Apr 2022 03:02:49 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29079

--- Comment #1 from asmwarrior <asmwarrior at gmail dot com> ---
ssbssa wrote a patch to fix this issue:

Here is the patch:

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
diff --git a/gdb/valprint.c b/gdb/valprint.c
index 6b1531ef442..f540c681403 100644
--- a/gdb/valprint.c
+++ b/gdb/valprint.c
@@ -1028,16 +1028,6 @@ common_val_print (struct value *value, struct ui_file
*stream, int recurse,

   QUIT;

-  /* Ensure that the type is complete and not just a stub.  If the type is
-     only a stub and we can't find and substitute its complete type, then
-     print appropriate string and return.  */
-
-  if (real_type->is_stub ())
-    {
-      fprintf_styled (stream, metadata_style.style (), _("<incomplete
type>"));
-      return;
-    }
-
   if (!valprint_check_validity (stream, real_type, 0, value))
     return;

@@ -1048,6 +1038,16 @@ common_val_print (struct value *value, struct ui_file
*stream, int recurse,
        return;
     }

+  /* Ensure that the type is complete and not just a stub.  If the type is
+     only a stub and we can't find and substitute its complete type, then
+     print appropriate string and return.  */
+
+  if (real_type->is_stub ())
+    {
+      fprintf_styled (stream, metadata_style.style (), _("<incomplete
type>"));
+      return;
+    }
+
   /* Handle summary mode.  If the value is a scalar, print it;
      otherwise, print an ellipsis.  */
   if (options->summary && !val_print_scalar_type_p (type))

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

For more details, you can see the discussion here:

Re: [solved] Creating a gdb Pretty-Printer for wxIPV4address =E2=80=94
https://forums.wxwidgets.org/viewtopic.php?p=3D211799#p211799

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