Kotlin in the SciJava REPL, using jrun (https://github.com/ctrueden/jrun)

kotlin-repl.txt

$ jrun -u org.scijava:scijava-common:org.scijava.script.ScriptREPL+org.scijava:scripting-kotlin:0.1.0-SNAPSHOT
Welcome to the SciJava REPL!

Available built-in commands:

  :help           | this handy list of commands
  :vars           | dump a list of variables
  :lang <name>    | switch the active language
  :langs          | list available languages
  :debug          | toggle full stack traces
  :quit           | exit the REPL

Or type a statement to evaluate it with the active language.

Have fun!

language -> Kotlin
> 1+2
warning: some JAR files in the classpath have the Kotlin Runtime library bundled into them. This may cause difficult to debug problems if there's a different version of the Kotlin Runtime library in the classpath. Consider removing these libraries from the classpath or use '-Xskip-runtime-version-check' to suppress this warning
warning: library has Kotlin runtime bundled into it
3
> 4+5
9
> val x = 9*6
<null>
> x
54
> var y = 23*4.2
<null>
> y
96.60000000000001
> io
Error: error: unresolved reference: io
io
^

> bindings["io"]
org.scijava.io.DefaultIOService [priority = 0.0]
> val clown = bindings["io"].open("/Users/curtis/data/clown.png")
Error: error: unresolved reference: open
val clown = bindings["io"].open("/Users/curtis/data/clown.png")
                           ^

> bindings["exportedVar"] = "Important information"
Error: error: unresolved reference. None of the following candidates is applicable because of receiver type mismatch:
@InlineOnly public operator inline fun <K, V> MutableMap<String, String>.set(key: String, value: String): Unit defined in kotlin.collections
@InlineOnly public operator inline fun StringBuilder /* = StringBuilder */.set(index: Int, value: Char): Unit defined in kotlin.text
bindings["exportedVar"] = "Important information"
^
error: no set method providing array access
bindings["exportedVar"] = "Important information"
        ^

> bindings.put("exportedVar", "Important information")
Error: error: unresolved reference: put
bindings.put("exportedVar", "Important information")
         ^

> kajshdfkashdfkajshdfkfsck
Error: error: unresolved reference: kajshdfkashdfkajshdfkfsck
kajshdfkashdfkajshdfkfsck
^

> %