Re: Overriding == for strings

On Fri, Feb 15, 2008 at 8:52 PM, Dan Shryock <[email protected]> wrote:
> As a simple test, I am trying to override the == operator for string
>  comparison.  The problem that I am running into is that I see no way
>  to do a reference test once you override the method.  In some
>  languages I have seen an === operator that always does a strict
>  reference test.  Is there any way to do something similar in nice?

You can simply give a new name to the == operation:

override boolean `==`(String s1, String s2) = s1.equals(s2);

boolean same(Object o1, Object o2) = o1 == o2;

void main(String[] args) {
  let s1 = "a", s2 = "ba".substring(1);
  println(s1 == s2); // true
  println(same(s1, s2)); // false
}

Daniel

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