using System;
using Wasmtime;

namespace HelloExample
{
    class Host : IHost
    {
        public Instance Instance { get; set; }

        [Import("print_global")]
        public void PrintGlobal()
        {
            Console.WriteLine($"The value of the global is: {Global.Value}.");
        }

        [Import("global")]
        public readonly MutableGlobal<int> Global = new MutableGlobal<int>(1);
    }

    class Program
    {
        static void Main(string[] args)
        {
            using (var engine = new Engine())
            using (var store = engine.CreateStore())
            using (var module = store.CreateModule("global.wasm"))
            using (dynamic instance = module.Instantiate(new Host()))
            {
                instance.run(20);
            }
        }
    }
}