This single markdown file, nim_java.md mixes: Nim, Java, and C++. The output is a single executeable that includes the Nim code translated to C, the Nim C runtime, Rusthon code translated to C++, and links to the JVM. This allows you to call Nim and Java functions from Rusthon, and manage passing data between them. For how to load a JAR library, see here.
#backend:c++ import nim import jvm jvm.namespace('mymod') @jvm class PointSubclass( Point ): def __init__(self, x:int, y:int): self.set(x,y) def show(self): print self.getx() print self.gety() def main(): nim.main() p1 = jvm( PointSubclass(1,2) ) p2 = jvm( PointSubclass(10,20) ) p1.show() p2.show() p2.scale( nim_sum(100, 1000) ) p2.show()
Mixing Nim, Java and C++ in a single binary would normally require some complex build, and running a wrapper generator like Nimrod-Java. But Nimrod-Java has not been updated in a year, and calling JNI through Nim is going to complicate threading.