path: root/gee/lazy.c

/* lazy.c generated by valac 0.18.0, the Vala compiler
 * generated from lazy.vala, do not modify */

/* lazy.vala
 *
 * Copyright (C) 2011  Maciej Piechotka
 *
 * This library 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 2.1 of the License, or (at your option) any later version.

 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 *
 * Author:
 * 	Maciej Piechotka <uzytkownik2@gmail.com>
 */

#include <glib.h>
#include <glib-object.h>
#include <gobject/gvaluecollector.h>


#define GEE_TYPE_LAZY (gee_lazy_get_type ())
#define GEE_LAZY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEE_TYPE_LAZY, GeeLazy))
#define GEE_LAZY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GEE_TYPE_LAZY, GeeLazyClass))
#define GEE_IS_LAZY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEE_TYPE_LAZY))
#define GEE_IS_LAZY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GEE_TYPE_LAZY))
#define GEE_LAZY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GEE_TYPE_LAZY, GeeLazyClass))

typedef struct _GeeLazy GeeLazy;
typedef struct _GeeLazyClass GeeLazyClass;
typedef struct _GeeLazyPrivate GeeLazyPrivate;
#define _g_destroy_func0(var) (((var == NULL) || (g_destroy_func == NULL)) ? NULL : (var = (g_destroy_func (var), NULL)))
typedef struct _GeeParamSpecLazy GeeParamSpecLazy;

typedef gpointer (*GeeLazyFunc) (void* user_data);
struct _GeeLazy {
	GTypeInstance parent_instance;
	volatile int ref_count;
	GeeLazyPrivate * priv;
};

struct _GeeLazyClass {
	GTypeClass parent_class;
	void (*finalize) (GeeLazy *self);
};

struct _GeeLazyPrivate {
	GType g_type;
	GBoxedCopyFunc g_dup_func;
	GDestroyNotify g_destroy_func;
	GeeLazyFunc _func;
	gpointer _func_target;
	GDestroyNotify _func_target_destroy_notify;
	gpointer _value;
};

struct _GeeParamSpecLazy {
	GParamSpec parent_instance;
};


static gpointer gee_lazy_parent_class = NULL;

gpointer gee_lazy_ref (gpointer instance);
void gee_lazy_unref (gpointer instance);
GParamSpec* gee_param_spec_lazy (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
void gee_value_set_lazy (GValue* value, gpointer v_object);
void gee_value_take_lazy (GValue* value, gpointer v_object);
gpointer gee_value_get_lazy (const GValue* value);
GType gee_lazy_get_type (void) G_GNUC_CONST;
#define GEE_LAZY_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GEE_TYPE_LAZY, GeeLazyPrivate))
enum  {
	GEE_LAZY_DUMMY_PROPERTY
};
GeeLazy* gee_lazy_new (GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, GeeLazyFunc func, void* func_target, GDestroyNotify func_target_destroy_notify);
GeeLazy* gee_lazy_construct (GType object_type, GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, GeeLazyFunc func, void* func_target, GDestroyNotify func_target_destroy_notify);
GeeLazy* gee_lazy_new_from_value (GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, gconstpointer item);
GeeLazy* gee_lazy_construct_from_value (GType object_type, GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, gconstpointer item);
void gee_lazy_eval (GeeLazy* self);
gpointer gee_lazy_get (GeeLazy* self);
gconstpointer gee_lazy_get_value (GeeLazy* self);
static void gee_lazy_finalize (GeeLazy* obj);


GeeLazy* gee_lazy_construct (GType object_type, GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, GeeLazyFunc func, void* func_target, GDestroyNotify func_target_destroy_notify) {
	GeeLazy* self = NULL;
	GeeLazyFunc _tmp0_;
	void* _tmp0__target;
	GDestroyNotify _tmp0__target_destroy_notify;
	self = (GeeLazy*) g_type_create_instance (object_type);
	self->priv->g_type = g_type;
	self->priv->g_dup_func = g_dup_func;
	self->priv->g_destroy_func = g_destroy_func;
	_tmp0_ = func;
	_tmp0__target = func_target;
	_tmp0__target_destroy_notify = func_target_destroy_notify;
	func_target_destroy_notify = NULL;
	(self->priv->_func_target_destroy_notify == NULL) ? NULL : (self->priv->_func_target_destroy_notify (self->priv->_func_target), NULL);
	self->priv->_func = NULL;
	self->priv->_func_target = NULL;
	self->priv->_func_target_destroy_notify = NULL;
	self->priv->_func = _tmp0_;
	self->priv->_func_target = _tmp0__target;
	self->priv->_func_target_destroy_notify = _tmp0__target_destroy_notify;
	(func_target_destroy_notify == NULL) ? NULL : (func_target_destroy_notify (func_target), NULL);
	func = NULL;
	func_target = NULL;
	func_target_destroy_notify = NULL;
	return self;
}


GeeLazy* gee_lazy_new (GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, GeeLazyFunc func, void* func_target, GDestroyNotify func_target_destroy_notify) {
	return gee_lazy_construct (GEE_TYPE_LAZY, g_type, g_dup_func, g_destroy_func, func, func_target, func_target_destroy_notify);
}


GeeLazy* gee_lazy_construct_from_value (GType object_type, GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, gconstpointer item) {
	GeeLazy* self = NULL;
	gconstpointer _tmp0_;
	gpointer _tmp1_;
	self = (GeeLazy*) g_type_create_instance (object_type);
	self->priv->g_type = g_type;
	self->priv->g_dup_func = g_dup_func;
	self->priv->g_destroy_func = g_destroy_func;
	_tmp0_ = item;
	_tmp1_ = ((_tmp0_ != NULL) && (g_dup_func != NULL)) ? g_dup_func ((gpointer) _tmp0_) : ((gpointer) _tmp0_);
	_g_destroy_func0 (self->priv->_value);
	self->priv->_value = _tmp1_;
	return self;
}


GeeLazy* gee_lazy_new_from_value (GType g_type, GBoxedCopyFunc g_dup_func, GDestroyNotify g_destroy_func, gconstpointer item) {
	return gee_lazy_construct_from_value (GEE_TYPE_LAZY, g_type, g_dup_func, g_destroy_func, item);
}


void gee_lazy_eval (GeeLazy* self) {
	GeeLazyFunc _tmp0_;
	void* _tmp0__target;
	g_return_if_fail (self != NULL);
	_tmp0_ = self->priv->_func;
	_tmp0__target = self->priv->_func_target;
	if (_tmp0_ != NULL) {
		GeeLazyFunc _tmp1_;
		void* _tmp1__target;
		gpointer _tmp2_ = NULL;
		_tmp1_ = self->priv->_func;
		_tmp1__target = self->priv->_func_target;
		_tmp2_ = _tmp1_ (_tmp1__target);
		((self->priv->_value == NULL) || (self->priv->g_destroy_func == NULL)) ? NULL : (self->priv->_value = (self->priv->g_destroy_func (self->priv->_value), NULL));
		self->priv->_value = _tmp2_;
		(self->priv->_func_target_destroy_notify == NULL) ? NULL : (self->priv->_func_target_destroy_notify (self->priv->_func_target), NULL);
		self->priv->_func = NULL;
		self->priv->_func_target = NULL;
		self->priv->_func_target_destroy_notify = NULL;
		self->priv->_func = NULL;
		self->priv->_func_target = NULL;
		self->priv->_func_target_destroy_notify = NULL;
	}
}


gpointer gee_lazy_get (GeeLazy* self) {
	gpointer result = NULL;
	gconstpointer _tmp0_;
	gpointer _tmp1_;
	g_return_val_if_fail (self != NULL, NULL);
	gee_lazy_eval (self);
	_tmp0_ = self->priv->_value;
	_tmp1_ = ((_tmp0_ != NULL) && (self->priv->g_dup_func != NULL)) ? self->priv->g_dup_func ((gpointer) _tmp0_) : ((gpointer) _tmp0_);
	result = _tmp1_;
	return result;
}


gconstpointer gee_lazy_get_value (GeeLazy* self) {
	gconstpointer result;
	gconstpointer _tmp0_;
	g_return_val_if_fail (self != NULL, NULL);
	gee_lazy_eval (self);
	_tmp0_ = self->priv->_value;
	result = _tmp0_;
	return result;
}


static void gee_value_lazy_init (GValue* value) {
	value->data[0].v_pointer = NULL;
}


static void gee_value_lazy_free_value (GValue* value) {
	if (value->data[0].v_pointer) {
		gee_lazy_unref (value->data[0].v_pointer);
	}
}


static void gee_value_lazy_copy_value (const GValue* src_value, GValue* dest_value) {
	if (src_value->data[0].v_pointer) {
		dest_value->data[0].v_pointer = gee_lazy_ref (src_value->data[0].v_pointer);
	} else {
		dest_value->data[0].v_pointer = NULL;
	}
}


static gpointer gee_value_lazy_peek_pointer (const GValue* value) {
	return value->data[0].v_pointer;
}


static gchar* gee_value_lazy_collect_value (GValue* value, guint n_collect_values, GTypeCValue* collect_values, guint collect_flags) {
	if (collect_values[0].v_pointer) {
		GeeLazy* object;
		object = collect_values[0].v_pointer;
		if (object->parent_instance.g_class == NULL) {
			return g_strconcat ("invalid unclassed object pointer for value type `", G_VALUE_TYPE_NAME (value), "'", NULL);
		} else if (!g_value_type_compatible (G_TYPE_FROM_INSTANCE (object), G_VALUE_TYPE (value))) {
			return g_strconcat ("invalid object type `", g_type_name (G_TYPE_FROM_INSTANCE (object)), "' for value type `", G_VALUE_TYPE_NAME (value), "'", NULL);
		}
		value->data[0].v_pointer = gee_lazy_ref (object);
	} else {
		value->data[0].v_pointer = NULL;
	}
	return NULL;
}


static gchar* gee_value_lazy_lcopy_value (const GValue* value, guint n_collect_values, GTypeCValue* collect_values, guint collect_flags) {
	GeeLazy** object_p;
	object_p = collect_values[0].v_pointer;
	if (!object_p) {
		return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
	}
	if (!value->data[0].v_pointer) {
		*object_p = NULL;
	} else if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
		*object_p = value->data[0].v_pointer;
	} else {
		*object_p = gee_lazy_ref (value->data[0].v_pointer);
	}
	return NULL;
}


GParamSpec* gee_param_spec_lazy (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags) {
	GeeParamSpecLazy* spec;
	g_return_val_if_fail (g_type_is_a (object_type, GEE_TYPE_LAZY), NULL);
	spec = g_param_spec_internal (G_TYPE_PARAM_OBJECT, name, nick, blurb, flags);
	G_PARAM_SPEC (spec)->value_type = object_type;
	return G_PARAM_SPEC (spec);
}


gpointer gee_value_get_lazy (const GValue* value) {
	g_return_val_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, GEE_TYPE_LAZY), NULL);
	return value->data[0].v_pointer;
}


void gee_value_set_lazy (GValue* value, gpointer v_object) {
	GeeLazy* old;
	g_return_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, GEE_TYPE_LAZY));
	old = value->data[0].v_pointer;
	if (v_object) {
		g_return_if_fail (G_TYPE_CHECK_INSTANCE_TYPE (v_object, GEE_TYPE_LAZY));
		g_return_if_fail (g_value_type_compatible (G_TYPE_FROM_INSTANCE (v_object), G_VALUE_TYPE (value)));
		value->data[0].v_pointer = v_object;
		gee_lazy_ref (value->data[0].v_pointer);
	} else {
		value->data[0].v_pointer = NULL;
	}
	if (old) {
		gee_lazy_unref (old);
	}
}


void gee_value_take_lazy (GValue* value, gpointer v_object) {
	GeeLazy* old;
	g_return_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, GEE_TYPE_LAZY));
	old = value->data[0].v_pointer;
	if (v_object) {
		g_return_if_fail (G_TYPE_CHECK_INSTANCE_TYPE (v_object, GEE_TYPE_LAZY));
		g_return_if_fail (g_value_type_compatible (G_TYPE_FROM_INSTANCE (v_object), G_VALUE_TYPE (value)));
		value->data[0].v_pointer = v_object;
	} else {
		value->data[0].v_pointer = NULL;
	}
	if (old) {
		gee_lazy_unref (old);
	}
}


static void gee_lazy_class_init (GeeLazyClass * klass) {
	gee_lazy_parent_class = g_type_class_peek_parent (klass);
	GEE_LAZY_CLASS (klass)->finalize = gee_lazy_finalize;
	g_type_class_add_private (klass, sizeof (GeeLazyPrivate));
}


static void gee_lazy_instance_init (GeeLazy * self) {
	self->priv = GEE_LAZY_GET_PRIVATE (self);
	self->ref_count = 1;
}


static void gee_lazy_finalize (GeeLazy* obj) {
	GeeLazy * self;
	self = G_TYPE_CHECK_INSTANCE_CAST (obj, GEE_TYPE_LAZY, GeeLazy);
	(self->priv->_func_target_destroy_notify == NULL) ? NULL : (self->priv->_func_target_destroy_notify (self->priv->_func_target), NULL);
	self->priv->_func = NULL;
	self->priv->_func_target = NULL;
	self->priv->_func_target_destroy_notify = NULL;
	((self->priv->_value == NULL) || (self->priv->g_destroy_func == NULL)) ? NULL : (self->priv->_value = (self->priv->g_destroy_func (self->priv->_value), NULL));
}


/**
 * Represents a lazy value. I.e. value that is computed on demand.
 */
GType gee_lazy_get_type (void) {
	static volatile gsize gee_lazy_type_id__volatile = 0;
	if (g_once_init_enter (&gee_lazy_type_id__volatile)) {
		static const GTypeValueTable g_define_type_value_table = { gee_value_lazy_init, gee_value_lazy_free_value, gee_value_lazy_copy_value, gee_value_lazy_peek_pointer, "p", gee_value_lazy_collect_value, "p", gee_value_lazy_lcopy_value };
		static const GTypeInfo g_define_type_info = { sizeof (GeeLazyClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gee_lazy_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (GeeLazy), 0, (GInstanceInitFunc) gee_lazy_instance_init, &g_define_type_value_table };
		static const GTypeFundamentalInfo g_define_type_fundamental_info = { (G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_INSTANTIATABLE | G_TYPE_FLAG_DERIVABLE | G_TYPE_FLAG_DEEP_DERIVABLE) };
		GType gee_lazy_type_id;
		gee_lazy_type_id = g_type_register_fundamental (g_type_fundamental_next (), "GeeLazy", &g_define_type_info, &g_define_type_fundamental_info, 0);
		g_once_init_leave (&gee_lazy_type_id__volatile, gee_lazy_type_id);
	}
	return gee_lazy_type_id__volatile;
}


gpointer gee_lazy_ref (gpointer instance) {
	GeeLazy* self;
	self = instance;
	g_atomic_int_inc (&self->ref_count);
	return instance;
}


void gee_lazy_unref (gpointer instance) {
	GeeLazy* self;
	self = instance;
	if (g_atomic_int_dec_and_test (&self->ref_count)) {
		GEE_LAZY_GET_CLASS (self)->finalize (self);
		g_type_free_instance ((GTypeInstance *) self);
	}
}