Glavo

import java.lang.foreign.*;
import java.lang.invoke.*;
import java.util.Arrays;

import static java.lang.foreign.ValueLayout.*;

public class Test {
    @FunctionalInterface
    public interface Callback {
        int invoke(MemorySegment a, MemorySegment b);

Glavo

package org.glavo.jmh;

import com.google.common.jimfs.Jimfs;
import org.openjdk.jmh.annotations.*;

import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;

Glavo

import com.google.common.jimfs.Jimfs;
import org.openjdk.jmh.annotations.*;

import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.FileSystem;
import java.nio.file.Files;
import java.nio.file.Path;

Glavo

import jdk.incubator.foreign.*;
import java.lang.invoke.*;

// Original code (C++): https://stackoverflow.com/a/40937610/7659948
public class PanamaJIT {

    public static final int MEM_COMMIT = 0x00001000;

    public static final int PAGE_READWRITE = 0x04;
    public static final int PAGE_EXECUTE_READ = 0x20;

Glavo

// Log timings per task.
class TimingsListener : TaskExecutionListener, BuildListener {
    private var startTime: Long = 0L
    private val timings = mutableListOf<Pair<Long, String>>()

    @Override
    override fun beforeExecute(task: Task) {
        startTime = System.nanoTime()
    }

Glavo

; ModuleID = 'test2.cpp'
source_filename = "test2.cpp"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"

@_ZL3cnt = internal unnamed_addr global i32 0, align 4
@.str = private unnamed_addr constant [16 x i8] c"%d\0ATime: %ldms\0A\00", align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @_Z3Dfsiiii(i32 %0, i32 %1, i32 %2, i32 %3) local_unnamed_addr #0 {

Glavo

[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] *** HMCL 3.3.172 ***
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] Operating System: Windows 10 10.0
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] Java Version: 1.8.0_252, BellSoft
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), BellSoft
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] Java Home: D:\Downloads\HMCL\jre-x64
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] Current Directory: D:\Downloads\HMCL
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] HMCL Directory: C:\Users\Glavo\AppData\Roaming\.hmcl
[17:15:40] [org.jackhuang.hmcl.Launcher.main/INFO] Memory: 14553MB
[17:15:40] [org.jackhuang.hmcl.Launcher.lambda$main$2/INFO] Metaspace: 8MB
[17:15:40] [org.jackhuang.hmcl.Main.fixLetsEncrypt/INFO] Added Lets Encrypt root certificates as additional trust

Glavo

scala> type T = (Int, Char, String)
// defined alias type T = (Int, Char, String)

scala> val get: (t: T, i: Int) => Tuple.Elem[T, i.type] = (t, i) => t(i)
1 |val get: (t: T, i: Int) => Tuple.Elem[T, i.type] = (t, i) => t(i)
  |                                                             ^^^^
  |found:    Int(i) match {
  |  case Int(0) => Int
  |  case [n1 <: Int] => typelevel.S[n1] => scala.Tuple.Elem[(Char, String), n1]
  |}

Glavo

openjdk-jdk9-jdk9/
├── common
│   ├── autoconf
│   │   └── build-aux
│   ├── bin
│   ├── conf
│   ├── doc
│   ├── nb_native
│   │   └── nbproject
│   └── src

Glavo

class C {
  def fun23(f: (Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int, Int) => Int) = {}
}

object C {
  def main(args: Array[String]): Unit = {
    classOf[C].getMethod("fun23", classOf[FunctionXXL]).getGenericParameterTypes
  }
}