[gobject-introspection: 1/5] regress: Add test for interface signal

[Philip Chimento <pchimento src gnome org>]

commit 4fa6c29987ac23ff1e1f094a3d0ef4c4bcdacf4f
Author: Philip Chimento <philip chimento gmail com>
Date:   Wed May 9 23:36:50 2018 -0700

    regress: Add test for interface signal
    
    It includes a pointer parameter; for some reason, the pointer parameter
    breaks g_object_info_find_signal() but a parameter-less signal doesn't.
    
    See gjs#147.

 tests/scanner/Regress-1.0-expected.gir | 24 ++++++++++++++++++++++++
 tests/scanner/regress.c                | 25 +++++++++++++++++++++++++
 tests/scanner/regress.h                |  3 +++
 3 files changed, 52 insertions(+)
---
diff --git a/tests/scanner/Regress-1.0-expected.gir b/tests/scanner/Regress-1.0-expected.gir
index 39f5d05d..316c12ca 100644
--- a/tests/scanner/Regress-1.0-expected.gir
+++ b/tests/scanner/Regress-1.0-expected.gir
@@ -2907,6 +2907,30 @@ use it should be.</doc>
                glib:type-name="RegressTestInterface"
                glib:get-type="regress_test_interface_get_type"
                glib:type-struct="TestInterfaceIface">
+      <method name="emit_signal"
+              c:identifier="regress_test_interface_emit_signal">
+        <return-value transfer-ownership="none">
+          <type name="none" c:type="void"/>
+        </return-value>
+        <parameters>
+          <instance-parameter name="self" transfer-ownership="none">
+            <doc xml:space="preserve">the object to emit the signal</doc>
+            <type name="TestInterface" c:type="RegressTestInterface*"/>
+          </instance-parameter>
+        </parameters>
+      </method>
+      <glib:signal name="interface-signal" when="last">
+        <return-value transfer-ownership="none">
+          <type name="none" c:type="void"/>
+        </return-value>
+        <parameters>
+          <parameter name="ptr" transfer-ownership="none">
+            <doc xml:space="preserve">the code must look up the signal with
+  g_interface_info_find_signal() in order to get this to work.</doc>
+            <type name="gint" c:type="gpointer"/>
+          </parameter>
+        </parameters>
+      </glib:signal>
     </interface>
     <record name="TestInterfaceIface"
             c:type="RegressTestInterfaceIface"
diff --git a/tests/scanner/regress.c b/tests/scanner/regress.c
index 3c186238..2cf4cddb 100644
--- a/tests/scanner/regress.c
+++ b/tests/scanner/regress.c
@@ -3908,6 +3908,31 @@ G_DEFINE_INTERFACE (RegressTestInterface, regress_test_interface, G_TYPE_OBJECT)
 static void
 regress_test_interface_default_init(RegressTestInterfaceIface *iface)
 {
+  static gboolean initialized = FALSE;
+  if (initialized)
+    return;
+
+  /**
+   * RegressTestInterface::interface-signal:
+   * @self: the object which emitted the signal
+   * @ptr: (type int): the code must look up the signal with
+   *   g_interface_info_find_signal() in order to get this to work.
+   */
+  g_signal_new ("interface-signal", REGRESS_TEST_TYPE_INTERFACE,
+                G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
+                G_TYPE_NONE, 1, G_TYPE_POINTER);
+
+  initialized = TRUE;
+}
+
+/**
+ * regress_test_interface_emit_signal:
+ * @self: the object to emit the signal
+ */
+void
+regress_test_interface_emit_signal (RegressTestInterface *self)
+{
+  g_signal_emit_by_name (self, "interface-signal", NULL);
 }
 
 /* gobject with non-standard prefix */
diff --git a/tests/scanner/regress.h b/tests/scanner/regress.h
index 23b5792b..d88df3f2 100644
--- a/tests/scanner/regress.h
+++ b/tests/scanner/regress.h
@@ -1196,6 +1196,9 @@ struct _RegressTestInterfaceIface {
 _GI_TEST_EXTERN
 GType regress_test_interface_get_type (void) G_GNUC_CONST;
 
+_GI_TEST_EXTERN
+void regress_test_interface_emit_signal (RegressTestInterface *self);
+
 /* gobject with non-standard prefix */
 #define REGRESS_TEST_TYPE_WI_802_1X              (regress_test_wi_802_1x_get_type ())
 #define REGRESS_TEST_WI_802_1X(object)        (G_TYPE_CHECK_INSTANCE_CAST ((object), 
REGRESS_TEST_TYPE_WI_802_1X, RegressTestWi8021x))