问题
i recently came to know that groovy++ have been released, what is the major difference is in Groovy and Groovy++?
回答1:
From the groovy++ page http://code.google.com/p/groovypptest/
Groovy++ is statically typed extension of Groovy programming language. Additionally to all goodies of standard Groovy it adds a lot of functionality
- compile time checking of code
- as fast as Java performance of compiled code
- easy mixing of statically and dynamically typed code
- very powerful type inference
- tail recursion traits (interfaces with default implementation)
- extension methods (compile time categories)
- standard library of utilities for functional programming, concurrency and distributed computing (early prototype stage)
回答2:
There is a good article on what Groovy++ brings to Groovy here. It includes benchmark results, so you can see the performance difference vs. Groovy and straight Java.
回答3:
Groovy++ is an extension to the core Groovy 1.x language. You drop the GroovyPP.jar file into the Groovy library directory, add @Typed in front of the package keyword in your code, then run your code just as you would in core Groovy. It infers the types, AND runs faster!
来源：https://stackoverflow.com/questions/5441482/groovy-and-groovy-are-they-different