/*
 * nanowasm, a tiny WebAssembly/Wasm interpreter
 * Copyright (C) 2023-2024  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/interp.h>
#include <nw/log.h>
#include <nw/search.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>

enum nw_state nw_run(struct nw_inst *const i)
{
    struct nw_interp *const in = &i->interp;
    union nw_inst_state *const s = &i->state;

    if (interp_run(in))
    {
        LOG("%s: interp_run failed\n", __func__);

        if (in->exception)
        {
            s->exception = in->exception;
            return NW_STATE_EXCEPTION;
        }

        return NW_STATE_FATAL;
    }
    else if (in->exit)
    {
        s->retval = in->retval;
        return NW_STATE_RETURNED;
    }

    return NW_STATE_AGAIN;
}