Re: Influence of Lua on Go?

[Daniel Aquino <mr.danielaquino@...>]

With pcall couldn't you implement the defer functions in Go ?

This is pseudo code somewhere between _javascript_ and Lua...

var deferable = function()

{

  return function()

  {

    var error, results = pcall( arguments[0] )

    if(!error) return results;

    for( var i=1; i<arguments.length; i++ )

      arguments[i]( error, results )

  }
}

var f = deferable(

  function(){ throw("oops") },

  function(){ alert("cleaning up") },

  function(error, msg )

  { 

    if(error==200)

       throw( "maybe you still want to blow up anyway" )

  }

)

f()

On Fri, Sep 9, 2011 at 5:57 PM, Hisham <hisham.hm@gmail.com> wrote:

On Fri, Sep 9, 2011 at 5:37 AM, Taj Khattra <taj.khattra@gmail.com> wrote:
> On Thu, Sep 8, 2011 at 11:03 PM, steve donovan
> <steve.j.donovan@gmail.com> wrote:
>> This page in fact makes the assertion:
>>
>> "Lua took multiple assignment and multiple returns from function calls
>> from CLU."
>>
>> But this is a [citation needed] ;)
>
> R. Ierusalimschy, L. H. de Figueiredo, W. Celes,
> The evolution of Lua,
> Proceedings of ACM HOPL III (2007) 2-1–2-26.
> (http://www.lua.org/doc/hopl.pdf)
>
> section "4. Birth":
>    ...
>    From CLU we took multiple assignment and multiple returns from
> function calls.
>    We regarded multiple returns as a simpler alternative to reference
> parameters used
>    in Pascal and Modula and to in-out parameters used in Ada; we also
> wanted to avoid
>    explicit pointers (used in C).

Excellent! There we go, then:

http://en.wikipedia.org/wiki/CLU_%28programming_language%29#References

--
-- Hisham
http://hisham.hm/ - http://colorbleed.com.br/