rb_protect.diff

diff --git a/gobject-introspection/ext/gobject-introspection/rb-gi-constructor-info.c b/gobject-introspection/ext/gobject-introspection/rb-gi-constructor-info.c
index c2387b0..376fdb7 100644
--- a/gobject-introspection/ext/gobject-introspection/rb-gi-constructor-info.c
+++ b/gobject-introspection/ext/gobject-introspection/rb-gi-constructor-info.c
@@ -94,6 +94,7 @@ rg_invoke(VALUE self, VALUE rb_options)
     VALUE receiver;
     GIArgument return_value;
     GITypeInfo return_value_info;
+    VALUE val, state;
 
     info = SELF(self);
     callable_info = (GICallableInfo *)info;
@@ -109,9 +110,14 @@ rg_invoke(VALUE self, VALUE rb_options)
                  RBG_INSPECT(rb_options));
     }
     /* TODO: use rb_protect */
-    rb_gi_function_info_invoke_raw(info,
-                                   rb_options,
-                                   &return_value);
+    val = rb_protect(rb_gi_function_info_invoke_raw,
+                     (info, rb_options, &return_value),
+                     &state);
+
+    if (state != 0) {
+      puts("大域脱出が起きた");
+      rb_jump_tag(status);
+    }
 
     g_callable_info_load_return_type(callable_info, &return_value_info);
     initialize_receiver(receiver, &return_value_info, &return_value);