Stringanize.cs

void Method(Entity entity) {
  if(entity == null) {
    throw new ArgumentNullException(nameof(entity));
  } else if(entity.Some.Property > 0) {
    throw new ArgumentException(stringanize(entity.Some.Property > 0), nameof(entity));
  }//if
  
  // "stringanize" makes a string from an expression
  // and when we are renamed "Some" or "Property"
  // string is updated!
  
  // …
}