types: treat resource type prototypes as GC roots

Mark reachable resource type prototype objects during incremental GC steps
in order to avoid freeing them prematurely.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/types.c b/types.c
index a8de8e4..6f60f59 100644
--- a/types.c
+++ b/types.c
@@ -2189,6 +2189,9 @@ ucv_gc_common(uc_vm_t *vm, bool final)
 
 		for (i = 0; i < vm->stack.count; i++)
 			ucv_gc_mark(vm->stack.entries[i]);
+
+		for (i = 0; i < vm->restypes.count; i++)
+			ucv_gc_mark(vm->restypes.entries[i]->proto);
 	}
 
 	/* unref unreachable objects */