private Unwrap(Expression child)
{
_child = child;
_info = new NullableInfo(child.Type);
Span = child.Span;
Type = _info.UnderlyingType;
ExpressionClass = child.ExpressionClass;
}
public InternalWrap([NotNull] Expression child, [NotNull] NullableInfo info, SourceSpan location)
{
if (child == null)
{
throw new ArgumentNullException("child");
}
if (info == null)
{
throw new ArgumentNullException("info");
}
_child = child;
_info = info;
Span = location;
Type = _info.Type;
ExpressionClass = ExpressionClass.Value;
}