Friday, March 30, 2007

Can Your Ruby Do This?

# scripting.rb

include Scriptable

x = 'Hello'
y = 'world'

groovy <<G
def z = 'multilanguage'
println("${x}, ${z} ${y}")
G

javascript <<JS
z = 'multilanguage'
println(x + ', ' + z + ' ' + y)
JS

# both => "Hello, multilanguage world!"
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8 comments:

  1. AnonymousMarch 30, 2007 at 12:43 PM

    Cool! Do values go the other way, too? (e.g. JS to JRuby) And what types are supported?

    ReplyDelete
  2. Charles Oliver NutterMarch 30, 2007 at 12:46 PM

    The values only go one way, a bit like variables declared in a block are only visible within that block. So you could think of these script sections as being a call to a groovy block or a javascript block.

    I think it could be possible to have the results come back out into the *same* variables though...hmmm.

    ReplyDelete
  3. Daniel SpiewakMarch 30, 2007 at 5:55 PM

    I assume this is using the Java 6 scripting API?

    ReplyDelete
  4. Nick SiegerMarch 30, 2007 at 5:59 PM

    Yep, see the code here.

    ReplyDelete
  5. Andres AlmirayMarch 31, 2007 at 8:27 AM

    Really nice. But if it could go both ways it would be awesome.

    ReplyDelete
  6. paulkMay 5, 2007 at 4:42 AM

    You can improve the Groovy example with:
    println "$x, $y $z"

    ReplyDelete
  7. Davi PiresJune 12, 2007 at 6:32 AM

    now this is really really amazing!

    ReplyDelete
  8. free ps3September 27, 2007 at 2:57 PM

    Thanks for the nice post!

    ReplyDelete

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