lang-kotlin

A Kotlin language runtime module for NetKernel.

Example Scripts

Classic NKF

res:/experiment/one.nk.kts:

val req = context.createRequest("active:kotlin")
req.addArgument("operator", "res:/experiment/two.nk.kts")
req.addArgumentByValue("recipient", "world")

context.response(context.issueRequestForResponse(req))

res:/experiment/two.nk.kts:

val recipient = context.source("arg:recipient", String::class.java)

context.response("Hello $recipient")

Running active:kotlin+operator@res:/experiment/one.nk.kts will result in:

Hello world

DSL

res:/experiment/one.nk.kts:

response {
    source<String>("active:kotlin") {
        argument("operator", sourceRequest<Any>("res:/experiment/two.nk.kts"))
        argument("recipient", "world")
    }
}

res:/experiment/two.nk.kts:

response {
    val recipient = source<String>("arg:recipient")
    "Hello $recipient"
}

Running active:kotlin+operator@res:/experiment/one.nk.kts will result in:

Hello world

Pass-by-request

If you change res:/experiment/one.nk.kts to be:

response {
    source<String>("active:kotlin") {
        argument("operator", sourceRequest<Any>("res:/experiment/two.nk.kts"))
        argument("recipient") {
            sourceRequest<Any>("active:toUpper") {
                argument("operand", "world")
            }
        }
    }
}

Then the result of active:kotlin+operator@res:/experiment/one.nk.kts will become:

Hello WORLD

IDE Code Completion

IntelliJ

In order to get Code Completion working correctly, you will need to:

• use .nk.kts as the extension for your Kotlin Script files,
• have urn.org.netkernel.lang.kotlin-1.0.0.jar as a compile dependency,
• in Preferences > Build, Execution, Deployment > Compiler > Kotlin Compiler, set the following settings in the 'Kotlin Scripting' section:
  • 'Script template classes': org.netkernel.lang.kotlin.NetKernelKotlinScript,
  • 'Script template classpath': /path/to/urn.org.netkernel.lang.kotlin-1.0.0.jar.
• The above should lead to a row for 'NetKernel Kotlin Script' appearing in Language & Frameworks > Kotlin > Kotlin Scripting