gistfile1.txt

~/projects/juby ➔ cat loop.jb
a = 0
b = 0
while a.compareTo(123_456) == -1
  a += 1
  b += a
end
puts b

~/projects/juby ➔ JAVA_OPTS=-XX:+EnableInvokeDynamic CLASSPATH=src jruby bin/jubyc loop.jb 

~/projects/juby ➔ javap -c dash_e
Compiled from "dash_e"
public class dash_e extends java.lang.Object {
public static void main(java.lang.String[]);
  Code:
   0:	ldc2_w	#7; //long 0l
   3:	invokestatic	#14; //Method java/lang/Long.valueOf:(J)Ljava/lang/Long;
   6:	dup
   7:	astore_0
   8:	pop
   9:	aload_0
   10:	ldc2_w	#15; //long 5l
   13:	invokestatic	#14; //Method java/lang/Long.valueOf:(J)Ljava/lang/Long;
   16:	invokedynamic	#34,  0; //NameAndType compareTo:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
   21:	ldc2_w	#35; //long -1l
   24:	invokestatic	#14; //Method java/lang/Long.valueOf:(J)Ljava/lang/Long;
   27:	invokedynamic	#38,  0; //NameAndType "==":(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
   32:	getstatic	#44; //Field java/lang/Boolean.FALSE:Ljava/lang/Boolean;
   35:	if_acmpeq	77
   38:	aload_0
   39:	ldc2_w	#45; //long 1l
   42:	invokestatic	#14; //Method java/lang/Long.valueOf:(J)Ljava/lang/Long;
   45:	invokedynamic	#48,  0; //NameAndType "+":(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
   50:	dup
   51:	astore_0
   52:	pop
   53:	aload_0
   54:	ldc2_w	#49; //long 10l
   57:	invokestatic	#14; //Method java/lang/Long.valueOf:(J)Ljava/lang/Long;
   60:	invokedynamic	#48,  0; //NameAndType "+":(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
   65:	getstatic	#56; //Field java/lang/System.out:Ljava/io/PrintStream;
   68:	swap
   69:	invokevirtual	#62; //Method java/io/PrintStream.println:(Ljava/lang/Object;)V
   72:	aconst_null
   73:	pop
   74:	goto	9
   77:	aconst_null
   78:	pop
   79:	return

static {};
  Code:
   0:	ldc	#19; //String dash_e
   2:	invokestatic	#25; //Method java/lang/Class.forName:(Ljava/lang/String;)Ljava/lang/Class;
   5:	invokestatic	#31; //Method com/headius/juby/SimpleJavaBootstrap.registerBootstrap:(Ljava/lang/Class;)V
   8:	return

}


~/projects/juby ➔ java -Xint -cp src:. -XX:+EnableInvokeDynamic loop
7620753696