FYI: Ceylon

[Alex Rønne Petersen]

On 14-07-2012 01:49, H. S. Teoh wrote:
> On Sat, Jul 14, 2012 at 01:31:02AM +0200, Paul D. Anderson wrote:
>> I took a quick look at the Ceylon language (http://ceylon-lang.org/)
> [...]
>> They also have couple of operators, '===' and '<=>' meaning
>> 'identical' and 'compare', respectively.
>
> Yikes! As soon as I saw '===', I went "no way, no how". That's one of
> the most egregious flaws of languages like JavaScript. And they have
> 'is' on top of that?! Double yikes! What _must_ their type system look
> like?!
>
>
>> They have an identity operator but also have the keyword 'is', which
>> should give you an inkling of the languages complexity. I assume
>> 'compare' is the same as D's 'opCmp', and it strikes me as a useful
>> operator. (Although I think the unusual comparison operators in D
>> ('!<>=') wound up high on the list of the "too many features" post.
> [...]
>
> Yeah... when I got to operators in my D lexer toy implementation, I was
> dumbstruck at how many ASCII UFOs ^W^W I mean, comparison operators D
> has. Most of which I have a hard time imagining a use for.
>
>
> T
>

They were originally meant for some potential close-to-the-machine FPU 
code. I have yet to see any actual code that needed them (i.e. as 
opposed to library helper routines).

-- 
Alex Rønne Petersen
alex at lycus.org
http://lycus.org