CODEWITHSUNDEEP
groovy
Ant's
Ant's

Reputation: 13811

Exact difference between Script class and Binding class in groovy

Consider this code: 

x = 10
10.times{    
    x++
}
assert ​binding.getVariable("x") == 20

As far, I'm concerned this is what happening in the above code: Script class has a reference to the variable x which has value 10 and it calls the times closure which will access the variable x from Script. So basically the scoping of x is been done by Script class.

But I wonder when binding came into the picture? In sense, I haven't called new Binding() or anything, but still its there.

I'm bit confused with it. What is the exact use of binding? Does Script class creates binding, if so that is how it manages scoping of x within times method?

Thanks in advance.

Upvotes: 1

Views: 587

Answers (1)

tim_yates
tim_yates

Reputation: 171114

The script class constructs a new binding when it is constructed

You can see it does it in the constructor of Script

Upvotes: 2

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