How does this groovy syntax translate to kotlin?

Question

I created a simple Greeting task in Kotlin.

Just like the one in the gradle documentation .

Now I'm adding a simple test to it that looks like this in groovy:

class GreetingTaskTest {
    @Test
    public void canAddTaskToProject() {
        Project project = ProjectBuilder.builder().build()
        def task = project.task('greeting', type: GreetingTask)
        assertTrue(task instanceof GreetingTask)
    }
}

I translated this one into Kotlin except one single bit in this line:

def task = project.task('greeting', type: GreetingTask)

The problematic bit is the second parameter. type: GreetingTask

What does it exactly stand for and how does it translate into Kotlin?

Answer 1

Thx to Opal for leading me to the solution.

In addition to his answer here is the kotlin version of the test:

class GreetingTaskTest {
    @Test
    public fun canAddTaskToProject() {
        val project = ProjectBuilder.builder().build()
        val task = project.task(mapOf("type" to GreetingTask::class.java), "greeting")
        assertTrue(task is GreetingTask)
    }
}

Answer 2

Have a look at the docs . task method takes a String and a Map . greeting is an instance of String and type: GreetingTask is a named parameter which is converted to an instance of Map . So you should pass a Map as the second arg. Unfortunately, don't know how to declare a Map in kotlin. This method might be helpful.