/* libmisc/tests/test_obj_autobox.c - Generated by `libmisc/tests/test_obj_nest.c libmisc/tests/test_obj_autobox.c`.  DO NOT EDIT!  */
/* libmisc/tests/test_obj_nest.c - Tests for <libmisc/obj.h> nesting
 *
 * Copyright (C) 2025  Luke T. Shumaker <lukeshu@lukeshu.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

#include <string.h> /* for memcpy() */

#include <libmisc/obj.h>

#include "test.h"

/* interfaces *****************************************************************/

#define reader_LO_IFACE \
	LO_FUNC(size_t, read, void *, size_t)
LO_INTERFACE(reader);

#define writer_LO_IFACE \
	LO_FUNC(size_t, write, void *, size_t)
LO_INTERFACE(writer);

#define read_writer_LO_IFACE \
	LO_NEST(reader) \
	LO_NEST(writer)
LO_INTERFACE(read_writer);

/* implementation *************************************************************/

struct myclass {
	size_t len;
	char   buf[512];
};
LO_IMPLEMENTATION_STATIC(reader, struct myclass, myclass);
LO_IMPLEMENTATION_STATIC(writer, struct myclass, myclass);
LO_IMPLEMENTATION_STATIC(read_writer, struct myclass, myclass);

static size_t myclass_read(struct myclass *self, void *buf, size_t count) {
	test_assert(self);
	if (count > self->len)
		count = self->len;
	memcpy(buf, self->buf, count);
	return count;
}

static size_t myclass_write(struct myclass *self, void *buf, size_t count) {
	test_assert(self);
	if (self->len)
		return 0;
	if (count > sizeof(self->buf))
		count = sizeof(self->buf);
	memcpy(self->buf, buf, count);
	self->len = count;
	return count;
}

/* main test body *************************************************************/

int main() {
	struct myclass _obj = {};
	lo_interface read_writer obj = LO_BOX(read_writer, &_obj);
	test_assert(LO_CALL(obj, write, "Hello", 6) == 6);
	char buf[6] = {};
	test_assert(LO_CALL(obj, read, buf, 3) == 3);
	test_assert(memcmp(buf, "Hel\0\0\0", 6) == 0);

	lo_interface reader rd = LO_BOX(reader, &_obj);
	rd = LO_BOX(reader, obj);
	(void) rd;

	lo_interface writer wr = LO_BOX(writer, &_obj);
	wr = LO_BOX(writer, obj);
	(void) wr;

	return 0;
}