root.c

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/*
 * This file is part of the Fun programming language.
 * https://fun-lang.xyz/
 *
 * Copyright 2025 Johannes Findeisen <you@hanez.org>
 * Licensed under the terms of the Apache-2.0 license.
 * https://opensource.org/license/apache-2-0
 */

/* OP_XML_ROOT: pops doc handle; pushes node handle (>0) or 0 */
case OP_XML_ROOT: {
#ifdef FUN_WITH_XML2
 Value vh = pop_value(vm);
 int h = (vh.type == VAL_INT) ? (int)vh.i : 0;
 xmlDocPtr doc = xml_doc_get(h);
 free_value(vh);
 int nh = 0;
 if (doc) {
 xmlNodePtr root = xmlDocGetRootElement(doc);
 if (root) nh = xml_node_alloc(root);
 }
 push_value(vm, make_int(nh));
#else
 Value drop = pop_value(vm);
 free_value(drop);
 push_value(vm, make_int(0));
#endif
 break;
}