[gjs/wip/package: 3/8] jsapi-util: add an utility method for defining a integer array

[Giovanni Campagna <gcampagna src gnome org>]

commit 04c19370cc2ebc5fe1e82d0e43010215633e0e21
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Fri Feb 22 03:15:49 2013 +0100

    jsapi-util: add an utility method for defining a integer array
    
    Similar to gjs_define_string_array(), but for integers.

 gjs/jsapi-util.c |   41 +++++++++++++++++++++++++++++++++++++++++
 gjs/jsapi-util.h |    6 ++++++
 2 files changed, 47 insertions(+), 0 deletions(-)
---
diff --git a/gjs/jsapi-util.c b/gjs/jsapi-util.c
index 6eab2ed..4d22697 100644
--- a/gjs/jsapi-util.c
+++ b/gjs/jsapi-util.c
@@ -272,6 +272,47 @@ gjs_define_string_array(JSContext   *context,
     return array;
 }
 
+JSObject*
+gjs_define_int_array(JSContext   *context,
+                     JSObject    *in_object,
+                     const char  *array_name,
+                     gssize       array_length,
+                     int         *array_values,
+                     unsigned     attrs)
+{
+    GArray *elems;
+    JSObject *array;
+    int i;
+
+    JS_BeginRequest(context);
+
+    if (!JS_EnterLocalRootScope(context))
+        return JS_FALSE;
+
+    elems = g_array_sized_new(FALSE, FALSE, sizeof(jsval), array_length);
+
+    for (i = 0; i < array_length; ++i) {
+        jsval element;
+        element = INT_TO_JSVAL(array_values[i]);
+        g_array_append_val(elems, element);
+    }
+
+    array = JS_NewArrayObject(context, elems->len, (jsval*) elems->data);
+    g_array_free(elems, TRUE);
+
+    if (array != NULL) {
+        if (!JS_DefineProperty(context, in_object,
+                               array_name, OBJECT_TO_JSVAL(array),
+                               NULL, NULL, attrs))
+            array = NULL;
+    }
+
+    JS_LeaveLocalRootScope(context);
+
+    JS_EndRequest(context);
+    return array;
+}
+
 /**
  * gjs_string_readable:
  *
diff --git a/gjs/jsapi-util.h b/gjs/jsapi-util.h
index 19406a8..a9ebe62 100644
--- a/gjs/jsapi-util.h
+++ b/gjs/jsapi-util.h
@@ -231,6 +231,12 @@ JSObject*   gjs_define_string_array          (JSContext       *context,
                                               gssize           array_length,
                                               const char     **array_values,
                                               unsigned         attrs);
+JSObject*   gjs_define_int_array             (JSContext       *context,
+                                              JSObject        *in_object,
+                                              const char      *array_name,
+                                              gssize           array_length,
+                                              int             *array_values,
+                                              unsigned         attrs);
 void        gjs_throw                        (JSContext       *context,
                                               const char      *format,
                                               ...)  G_GNUC_PRINTF (2, 3);