CODEWITHSUNDEEP
groovy
sshekhar
sshekhar

Reputation: 147

Understanding a small groovy script

I am absolutely new to groovy and I am trying to understand an existing groovy code to make changes. The code is a small groovy script like so:

package myapp.confg

appName = "myapp"
appVersion = "103"

tags {
    ags = "${myapp}"
}

I understand that appName and appVersion are global variables. However I cannot understand what tags is. Its not a closure and its not a map. Any ideas what this may be? Is it some way of creating a named scope? How can I access the value of ags from outside the tags scope?

Upvotes: 1

Views: 103

Answers (1)

Ibrahim.H
Ibrahim.H

Reputation: 1195

This can be a method with a Closure in the last parameter, and this is very common in Groovy to use the last parameter in a method as a Closure, this comes very handy to build a DSL (Delegation...) like so:

// Example 1
def t(Closure c){
  println('from Closure')
}

t {
  // do something
}

// Example 2
def t2(int i, int j, Closure c){
  print("closure with: $i, $j")
}

t2(1,2) {
  // do other something
}

More examples can be found in the doc for Delegation.

Upvotes: 1

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