1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * override.c: Closure override test program
3 * Copyright (C) 2001, James Henstridge
4 * Copyright (C) 2003, Red Hat, Inc.
6 * SPDX-License-Identifier: LGPL-2.1-or-later
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General
19 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
23 #include <glib-object.h>
25 #include "testcommon.h"
27 static guint foo_signal_id = 0;
28 static guint bar_signal_id = 0;
29 static guint baz_signal_id = 0;
31 static GType test_i_get_type (void);
32 static GType test_a_get_type (void);
33 static GType test_b_get_type (void);
34 static GType test_c_get_type (void);
36 static void record (const gchar *str);
38 #define TEST_TYPE_I (test_i_get_type ())
40 typedef struct _TestI TestI;
41 typedef struct _TestIClass TestIClass;
45 GTypeInterface base_iface;
49 test_i_foo (TestI *self)
51 record ("TestI::foo");
55 test_i_default_init (gpointer g_class)
57 foo_signal_id = g_signal_newv ("foo",
60 g_cclosure_new(G_CALLBACK(test_i_foo),
63 g_cclosure_marshal_VOID__VOID,
64 G_TYPE_NONE, 0, NULL);
67 static DEFINE_IFACE (TestI, test_i, NULL, test_i_default_init)
69 #define TEST_TYPE_A (test_a_get_type())
71 typedef struct _TestA TestA;
72 typedef struct _TestAClass TestAClass;
78 GObjectClass parent_class;
80 void (* bar) (TestA *self);
84 test_a_foo (TestI *self)
86 GValue args[1] = { G_VALUE_INIT };
88 record ("TestA::foo");
90 g_value_init (&args[0], TEST_TYPE_A);
91 g_value_set_object (&args[0], self);
93 g_assert_cmpint (g_signal_get_invocation_hint (self)->signal_id,
96 g_signal_chain_from_overridden (args, NULL);
98 g_value_unset (&args[0]);
102 test_a_bar (TestA *self)
104 record ("TestA::bar");
108 test_a_baz (TestA *self,
112 record ("TestA::baz");
114 g_assert_true (object == G_OBJECT (self));
115 g_assert_cmpint (GPOINTER_TO_INT (pointer), ==, 23);
117 return g_strdup ("TestA::baz");
121 test_a_class_init (TestAClass *class)
123 class->bar = test_a_bar;
125 bar_signal_id = g_signal_new ("bar",
128 G_STRUCT_OFFSET (TestAClass, bar),
130 g_cclosure_marshal_VOID__VOID,
131 G_TYPE_NONE, 0, NULL);
134 g_signal_new_class_handler ("baz",
137 G_CALLBACK (test_a_baz),
139 g_cclosure_marshal_STRING__OBJECT_POINTER,
146 test_a_interface_init (TestIClass *iface)
148 g_signal_override_class_closure (foo_signal_id,
150 g_cclosure_new (G_CALLBACK (test_a_foo),
154 static DEFINE_TYPE_FULL (TestA, test_a,
155 test_a_class_init, NULL, NULL,
157 INTERFACE (test_a_interface_init, TEST_TYPE_I))
159 #define TEST_TYPE_B (test_b_get_type())
161 typedef struct _TestB TestB;
162 typedef struct _TestBClass TestBClass;
168 TestAClass parent_class;
172 test_b_foo (TestI *self)
174 GValue args[1] = { G_VALUE_INIT };
176 record ("TestB::foo");
178 g_value_init (&args[0], TEST_TYPE_A);
179 g_value_set_object (&args[0], self);
181 g_assert_cmpint (g_signal_get_invocation_hint (self)->signal_id,
184 g_signal_chain_from_overridden (args, NULL);
186 g_value_unset (&args[0]);
190 test_b_bar (TestA *self)
192 GValue args[1] = { G_VALUE_INIT };
194 record ("TestB::bar");
196 g_value_init (&args[0], TEST_TYPE_A);
197 g_value_set_object (&args[0], self);
199 g_assert_cmpint (g_signal_get_invocation_hint (self)->signal_id,
202 g_signal_chain_from_overridden (args, NULL);
204 g_value_unset (&args[0]);
208 test_b_baz (TestA *self,
212 gchar *retval = NULL;
214 record ("TestB::baz");
216 g_assert_true (object == G_OBJECT (self));
217 g_assert_cmpint (GPOINTER_TO_INT (pointer), ==, 23);
219 g_signal_chain_from_overridden_handler (self, object, pointer, &retval);
223 gchar *tmp = g_strconcat (retval , ",TestB::baz", NULL);
232 test_b_class_init (TestBClass *class)
234 g_signal_override_class_closure (foo_signal_id,
236 g_cclosure_new (G_CALLBACK (test_b_foo),
238 g_signal_override_class_closure (bar_signal_id,
240 g_cclosure_new (G_CALLBACK (test_b_bar),
242 g_signal_override_class_handler ("baz",
244 G_CALLBACK (test_b_baz));
247 static DEFINE_TYPE (TestB, test_b,
248 test_b_class_init, NULL, NULL,
251 #define TEST_TYPE_C (test_c_get_type())
253 typedef struct _TestC TestC;
254 typedef struct _TestCClass TestCClass;
260 TestBClass parent_class;
264 test_c_foo (TestI *self)
266 GValue args[1] = { G_VALUE_INIT };
268 record ("TestC::foo");
270 g_value_init (&args[0], TEST_TYPE_A);
271 g_value_set_object (&args[0], self);
273 g_assert_cmpint (g_signal_get_invocation_hint (self)->signal_id,
276 g_signal_chain_from_overridden (args, NULL);
278 g_value_unset (&args[0]);
282 test_c_bar (TestA *self)
284 GValue args[1] = { G_VALUE_INIT };
286 record ("TestC::bar");
288 g_value_init (&args[0], TEST_TYPE_A);
289 g_value_set_object (&args[0], self);
291 g_assert_cmpint (g_signal_get_invocation_hint (self)->signal_id,
294 g_signal_chain_from_overridden (args, NULL);
296 g_value_unset (&args[0]);
300 test_c_baz (TestA *self,
304 gchar *retval = NULL;
306 record ("TestC::baz");
308 g_assert_true (object == G_OBJECT (self));
309 g_assert_cmpint (GPOINTER_TO_INT (pointer), ==, 23);
311 g_signal_chain_from_overridden_handler (self, object, pointer, &retval);
315 gchar *tmp = g_strconcat (retval , ",TestC::baz", NULL);
324 test_c_class_init (TestBClass *class)
326 g_signal_override_class_closure (foo_signal_id,
328 g_cclosure_new (G_CALLBACK (test_c_foo),
330 g_signal_override_class_closure (bar_signal_id,
332 g_cclosure_new (G_CALLBACK (test_c_bar),
334 g_signal_override_class_handler ("baz",
336 G_CALLBACK (test_c_baz));
340 static DEFINE_TYPE (TestC, test_c,
341 test_c_class_init, NULL, NULL,
344 static GString *test_string = NULL;
347 record (const gchar *str)
349 if (test_string->len)
350 g_string_append_c (test_string, ',');
351 g_string_append (test_string, str);
357 const gchar *expected,
358 const gchar *expected_retval)
360 GObject *self = g_object_new (type, NULL);
362 test_string = g_string_new (NULL);
364 if (strcmp (signal, "baz"))
366 g_signal_emit_by_name (self, signal);
372 g_signal_emit_by_name (self, signal, self, GINT_TO_POINTER (23), &ret);
373 g_assert_cmpstr (ret, ==, expected_retval);
378 g_test_message ("*** emitting %s on a %s instance\n"
381 signal, g_type_name (type),
385 g_assert_cmpstr (test_string->str, ==, expected);
387 g_string_free (test_string, TRUE);
388 g_object_unref (self);
394 test (TEST_TYPE_A, "foo", "TestA::foo,TestI::foo", NULL);
395 test (TEST_TYPE_A, "bar", "TestA::bar", NULL);
396 test (TEST_TYPE_A, "baz", "TestA::baz", "TestA::baz");
398 test (TEST_TYPE_B, "foo", "TestB::foo,TestA::foo,TestI::foo", NULL);
399 test (TEST_TYPE_B, "bar", "TestB::bar,TestA::bar", NULL);
400 test (TEST_TYPE_B, "baz", "TestB::baz,TestA::baz", "TestA::baz,TestB::baz");
402 test (TEST_TYPE_C, "foo", "TestC::foo,TestB::foo,TestA::foo,TestI::foo", NULL);
403 test (TEST_TYPE_C, "bar", "TestC::bar,TestB::bar,TestA::bar", NULL);
404 test (TEST_TYPE_C, "baz", "TestC::baz,TestB::baz,TestA::baz", "TestA::baz,TestB::baz,TestC::baz");
411 g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
412 G_LOG_LEVEL_WARNING |
413 G_LOG_LEVEL_CRITICAL);
415 g_test_init (&argc, &argv, NULL);
417 g_test_add_func ("/gobject/override", test_override);
419 return g_test_run ();