One more groovy -> kts question. before, with g...

# gradle

[Ran Magen]

One more groovy -> kts question.
before, with groovy, for the Copy task's expand function, we passed in a map where a key contained a function value:

[ pick: { Map<String, Object> stackMap, Object fallback -> stackMap.getOrDefault(stack, fallback) } ]

The template file we copied had stuff like:

replicas: ${pick(1, 'staging': 2, 'prod': 9)}

Now that I've converted the groovy code (in the build file, not the template) to Kotlin script and it now looks like

val pick = { stackMap: Map<String, Any>, fallback: Any -> stackMap.getOrDefault(stack, fallback) }

and I pass in to `expand`:

expand(mapOf("pick" to pick))

expansion fails saying this:

groovy.lang.MissingMethodException: No signature of method: Build_gradle$pick$1.call() is applicable for argument types: (LinkedHashMap, Integer) values: [[staging:2, prod:9], 1]

If possible, what's the right way to pass a function in expand properties?

[Ran Magen]

teammate figured this one out:

"pick" to object : groovy.lang.Closure<Any>(null) {
	override fun call(vararg args: Any?): Any? {
		val stackMap: Map<String, Any?> = args[0] as? Map<String, Any?> ?: emptyMap()
		val fallback = args[1]
		return stackMap.getOrDefault(stack, fallback)
	}
}