https://www.graalvm.org/ 
public abstract class com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltin extends com.oracle.truffle.sl.builtins.SLBuiltinNode
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltin
  super_class: com.oracle.truffle.sl.builtins.SLBuiltinNode
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltin this
         0: .line 56
            aload 0 /* this */
            invokespecial com.oracle.truffle.sl.builtins.SLBuiltinNode.<init>:()V
            return
        end local 0 // com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltin this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/sl/builtins/SLHelloEqualsWorldBuiltin;

  public java.lang.String change();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=1
        start local 0 // com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltin this
         0: .line 61
            invokestatic com.oracle.truffle.api.Truffle.getRuntime:()Lcom/oracle/truffle/api/TruffleRuntime;
            invokeinterface com.oracle.truffle.api.TruffleRuntime.getCallerFrame:()Lcom/oracle/truffle/api/frame/FrameInstance;
            astore 1 /* frameInstance */
        start local 1 // com.oracle.truffle.api.frame.FrameInstance frameInstance
         1: .line 62
            aload 1 /* frameInstance */
            getstatic com.oracle.truffle.api.frame.FrameInstance$FrameAccess.READ_WRITE:Lcom/oracle/truffle/api/frame/FrameInstance$FrameAccess;
            invokeinterface com.oracle.truffle.api.frame.FrameInstance.getFrame:(Lcom/oracle/truffle/api/frame/FrameInstance$FrameAccess;)Lcom/oracle/truffle/api/frame/Frame;
            astore 2 /* frame */
        start local 2 // com.oracle.truffle.api.frame.Frame frame
         2: .line 63
            aload 2 /* frame */
            invokeinterface com.oracle.truffle.api.frame.Frame.getFrameDescriptor:()Lcom/oracle/truffle/api/frame/FrameDescriptor;
            ldc "hello"
            invokevirtual com.oracle.truffle.api.frame.FrameDescriptor.findOrAddFrameSlot:(Ljava/lang/Object;)Lcom/oracle/truffle/api/frame/FrameSlot;
            astore 3 /* slot */
        start local 3 // com.oracle.truffle.api.frame.FrameSlot slot
         3: .line 64
            aload 2 /* frame */
            aload 3 /* slot */
            ldc "world"
            invokeinterface com.oracle.truffle.api.frame.Frame.setObject:(Lcom/oracle/truffle/api/frame/FrameSlot;Ljava/lang/Object;)V
         4: .line 65
            ldc "world"
            areturn
        end local 3 // com.oracle.truffle.api.frame.FrameSlot slot
        end local 2 // com.oracle.truffle.api.frame.Frame frame
        end local 1 // com.oracle.truffle.api.frame.FrameInstance frameInstance
        end local 0 // com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltin this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    5     0           this  Lcom/oracle/truffle/sl/builtins/SLHelloEqualsWorldBuiltin;
            1    5     1  frameInstance  Lcom/oracle/truffle/api/frame/FrameInstance;
            2    5     2          frame  Lcom/oracle/truffle/api/frame/Frame;
            3    5     3           slot  Lcom/oracle/truffle/api/frame/FrameSlot;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
}
SourceFile: "SLHelloEqualsWorldBuiltin.java"
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  public final FrameAccess = com.oracle.truffle.api.frame.FrameInstance$FrameAccess of com.oracle.truffle.api.frame.FrameInstance
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.NodeInfo(shortName = "helloEqualsWorld")