/// <summary>
/// Raises an appropriate ScriptRuntimeException if the specified access is not supported.
/// Checks are made for the MemberDescriptorAccess permissions AND for the access of instance
/// members through static userdatas.
/// </summary>
/// <param name="desc">The desc.</param>
/// <param name="access">The access.</param>
/// <param name="obj">The object to be checked for access.</param>
public static void CheckAccess(this IMemberDescriptor desc, MemberDescriptorAccess access, object obj)
{
if (!desc.IsStatic && obj == null)
{
throw ScriptRuntimeException.AccessInstanceMemberOnStatics(desc);
}
if (access.HasAllFlags(MemberDescriptorAccess.CanExecute) && !desc.CanExecute())
{
throw new ScriptRuntimeException("userdata member {0} cannot be called.", desc.Name);
}
if (access.HasAllFlags(MemberDescriptorAccess.CanWrite) && !desc.CanWrite())
{
throw new ScriptRuntimeException("userdata member {0} cannot be assigned to.", desc.Name);
}
if (access.HasAllFlags(MemberDescriptorAccess.CanRead) && !desc.CanRead())
{
throw new ScriptRuntimeException("userdata member {0} cannot be read from.", desc.Name);
}
}