immutable storage class?

Robert Fraser fraserofthenight at
Thu Mar 12 02:27:14 PDT 2009

Sergey Kovrov wrote:
> From playing with compiler looks like immutable and invariant are practically interchangeable. And typeof reports that invariant is really immutable. I personally like immutable keyword better, but wonder if it is just a change of name or something more?
> -- serg.

 From the newsgroup discussions, it's just a change of name, with the 
exception that only invariant can be used for class invariants:

class Foo {
     invariant() { }

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