Is all Groovy code valid with Groovy++?

Question

After seeing this link, I want to try Groovy++, but I have a worry;

Is all of Groovy's syntax valid in Groovy++?

For example I can do this in Groovy:

def list = [1,2]

Is the above code valid in Groovy++?

Answer 1

The aim (I believe) is to get it to to support as much Groovy code as is possible.

I believe there are currently a few areas that are not working including:

1. Multiple assignment - doesn't compile
2. The spread-dot operator can cause problems in some situations
3. .with {} doesn't work

But you can always work around these issues, or don't mark the class that needs them as @Typed

Answer 2

There's a list of differences with code samples at http://groovy.dzone.com/articles/groovycomparetogroovy-part-1

Some of the differences:

• stricter compile-time checks
• no on-the-fly type modifications with ExpandoMetaClass
• closures can't change variables outside closure code
• no direct access to private methods