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/* -*- mode: C; indent-tabs-mode: t; tab-width: 8; c-basic-offset: 2; -*- */
/*
* This file is part of Seed, the GObject Introspection<->Javascript bindings.
*
* Seed is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2 of
* the License, or (at your option) any later version.
* Seed is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License
* along with Seed. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) Robert Carr 2009 <carrr@rpi.edu>
*/
#ifndef _SEED_MODULE_H_
#define _SEED_MODULE_H_
#include "../libseed/seed.h"
// TODO: Move [example sqlite canvas Multiprocessing
// os sandbox dbus libxml cairo]
// towards utilization of this header.
/**
* CHECK_ARG_COUNT:
* @name: The name of the function being called from, pretty-printed
* @argnum: The number of arguments which should be passed into the function
*
* Check that the required number of arguments were passed into a
* #SeedFunctionCallback. If this is not true, raise an exception and
* return %NULL. This requires the callback to use "argument_count",
* "ctx", and "exception" as the names of the various function arguments.
*
* @name should be of form "namespace.function_name"
*
* At the moment, there is no way to specify more than one acceptable
* argument count.
*
*/
#define CHECK_ARG_COUNT(name, argnum) \
if ( argument_count != argnum ) \
{ \
seed_make_exception (ctx, exception, "ArgumentError", \
"wrong number of arguments; expected %s, got %Zd", \
#argnum, argument_count); \
return seed_make_undefined (ctx); \
}
/**
* DEFINE_ENUM_MEMBER:
* @holder: The object on which to define the enum member
* @member: The enum member, as it is named in C
*
* Defines a property on @holder which is named the same as @member, and
* is assigned the value that @member has in C.
*
* This macro works for defining properties from constants and
* #defines as well.
*
*/
#define DEFINE_ENUM_MEMBER(holder, member) \
seed_object_set_property(ctx, holder, #member, \
seed_value_from_long(ctx, member, NULL))
/**
* DEFINE_ENUM_MEMBER_EXT:
* @holder: The object on which to define the enum member
* @name: The enum member, as it should be named in JavaScript
* @val: The enum member, as it is named in C
*
* Defines a property on @holder which is named @name, and is assigned the
* value that @member has in C. This allows for an override of the enum
* member's name, most often to remove a common prefix. For example, to declare
* a property named VERSION_MAJOR on the namespace from mfpr's version
* constant MPFR_VERSION_MAJOR:
*
* <programlisting>
* DEFINE_ENUM_MEMBER_EXT(ns, "VERSION_MAJOR", MPFR_VERSION_MAJOR);
* </programlisting>
*
*/
#define DEFINE_ENUM_MEMBER_EXT(holder, name, val) \
seed_object_set_property(ctx, holder, name, \
seed_value_from_long(ctx, val, NULL))
#endif
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