/*
 * nanowasm, a tiny WebAssembly/Wasm interpreter
 * Copyright (C) 2023-2025  Xavier Del Campo Romero
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

#include <nanowasm/nw.h>
#include <nw/io.h>
#include <nw/log.h>
#include <nw/ops.h>

static enum nw_state run(struct nw_mod *const m)
{
    struct nw_sm_c *const c = &m->sm.code;
    struct nw_sm_c_fn *const fn = &c->fn;

    if (!fn->blocks)
    {
#ifdef NW_LOG
        nwp_log("unexpected end in function %lu\n", (unsigned long)c->entry_i);
#endif
        return NW_FATAL;
    }

    fn->blocks--;
    m->next = c->next;
    return NW_AGAIN;
}

void nwp_op_check_end(struct nw_mod *const m)
{
    m->next = run;
}