| // TARGET_BACKEND: JVM | |
| // WITH_STDLIB | |
| // FILE: Fn.java | |
| public interface Fn<T, R> { | |
| R run(String s, int i, T t); | |
| } | |
| // FILE: J.java | |
| public class J { | |
| public int runConversion(Fn<String, Integer> f1, Fn<Integer, String> f2) { | |
| return f1.run("Bar", 1, f2.run("Foo", 42, 239)); | |
| } | |
| } | |
| // FILE: 1.kt | |
| fun box(): String { | |
| val j = J() | |
| var x = "" | |
| val fsi = object : Fn<String, Int> { | |
| override fun run(s: String, i: Int, t: String): Int { | |
| x += "$s$i$t " | |
| return i | |
| } | |
| } | |
| val fis = object : Fn<Int, String> { | |
| override fun run(s: String, i: Int, t: Int): String { | |
| x += "$s$i$t " | |
| return s | |
| } | |
| } | |
| val r1 = j.runConversion(fsi) { s, i, ti -> x += "L$s$i$ti "; "L$s"} | |
| val r2 = j.runConversion({ s, i, ts -> x += "L$s$i$ts"; i }, fis) | |
| if (r1 != 1) return "fail r1: $r1" | |
| if (r2 != 1) return "fail r2: $r2" | |
| if (x != "LFoo42239 Bar1LFoo Foo42239 LBar1Foo") return x | |
| return "OK" | |
| } |