CODEWITHSUNDEEP
javagroovynullpointerexceptiongradle
St.Antario
St.Antario

Reputation: 27425

Task definition/definition in gradle

In a gradle build script when we declare a task as follows:

task lol

lol << {
    prinln "lol's action!"
}

and execute it as gradle -q lol it works fine. My question is why does lol task instance is already created and NullPointerException is not caused? Does declarartion task lol declare and define task simultaneously?

Upvotes: 0

Views: 145

Answers (1)

Dylan Bijnagte
Dylan Bijnagte

Reputation: 1356

task is actually a method on Project and task lol is invoking that method taking advantage of the optional parens. There is some groovy magic involved to turn lol into a String. The lol Task property on the Project then has the leftShift method invoked using the << operator. See operator overloading.

Upvotes: 3

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