[vala/0.48] codegen: Emit G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC() for structs

[Rico Tzschichholz <ricotz src gnome org>]

commit 18b07be9b71f1eb8c66b69d62d244575b7788386
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Feb 24 13:45:18 2022 +0100

    codegen: Emit G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC() for structs
    
    Fixes https://gitlab.gnome.org/GNOME/vala/issues/1293

 codegen/valaccodestructmodule.vala | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/codegen/valaccodestructmodule.vala b/codegen/valaccodestructmodule.vala
index 2b685383d..dff0d9827 100644
--- a/codegen/valaccodestructmodule.vala
+++ b/codegen/valaccodestructmodule.vala
@@ -142,6 +142,22 @@ public abstract class Vala.CCodeStructModule : CCodeBaseModule {
                        function.add_parameter (new CCodeParameter ("self", get_ccode_name (st) + "*"));
                        decl_space.add_function_declaration (function);
                }
+
+               if (context.profile == Profile.GOBJECT) {
+                       generate_auto_cleanup_clear (st, decl_space);
+               }
+       }
+
+       void generate_auto_cleanup_clear (Struct st, CCodeFile decl_space) {
+               if (st.is_disposable ()
+                   && (!context.use_header || decl_space.is_header)) {
+                       string auto_cleanup_clear_func = get_ccode_destroy_function (st);
+                       if (auto_cleanup_clear_func == null || auto_cleanup_clear_func == "") {
+                               Report.error (st.source_reference, "internal error: auto_cleanup_clear_func 
not available");
+                       }
+                       decl_space.add_type_member_declaration (new CCodeIdentifier 
("G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC (%s, %s)".printf (get_ccode_name (st), auto_cleanup_clear_func)));
+                       decl_space.add_type_member_declaration (new CCodeNewline ());
+               }
        }
 
        public override void visit_struct (Struct st) {