extern public static void NewClosure(IntPtr v, SqFunction func, int nfreevars);
/// <summary>
/// Registers a new function inside the squirrel VM.
/// </summary>
/// <param name="squirrelApi">The used instance of the <see cref="ISquirrelApi"/>.</param>
/// <param name="functionName">The name of the new function</param>
/// <param name="function">The delegate for the new function.</param>
public static void RegisterFunction(this ISquirrelApi squirrelApi, string functionName, SqFunction function)
{
if (squirrelApi == null)
{
throw new ArgumentNullException(nameof(squirrelApi));
}
if (function == null)
{
throw new ArgumentNullException(nameof(function));
}
if (string.IsNullOrEmpty(functionName))
{
throw new ArgumentException("Value cannot be null or empty.", nameof(functionName));
}
squirrelApi.SqPushRootTable();
squirrelApi.SqPushString(functionName);
squirrelApi.SqNewClosure(function, 0);
squirrelApi.SqNewSlot(-3, false);
squirrelApi.SqPop(1);
}