public SpanShim(Trace.ISpan span)
{
this.Span = span ?? throw new ArgumentNullException(nameof(span));
if (this.Span.Context == null)
{
throw new ArgumentNullException(nameof(this.Span.Context));
}
if (!this.Span.Context.IsValid)
{
throw new ArgumentException(nameof(this.Span.Context));
}
this.spanContextShim = new SpanContextShim(this.Span.Context);
}