https://www.graalvm.org/ 
public interface com.oracle.truffle.api.nodes.RepeatingNode extends com.oracle.truffle.api.nodes.NodeInterface
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.truffle.api.nodes.RepeatingNode
  super_class: java.lang.Object
{
  public static final java.lang.Object CONTINUE_LOOP_STATUS;
    descriptor: Ljava/lang/Object;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final java.lang.Object BREAK_LOOP_STATUS;
    descriptor: Ljava/lang/Object;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 63
            new com.oracle.truffle.api.nodes.RepeatingNode$1
            dup
            invokespecial com.oracle.truffle.api.nodes.RepeatingNode$1.<init>:()V
            putstatic com.oracle.truffle.api.nodes.RepeatingNode.CONTINUE_LOOP_STATUS:Ljava/lang/Object;
         1: .line 77
            new com.oracle.truffle.api.nodes.RepeatingNode$2
            dup
            invokespecial com.oracle.truffle.api.nodes.RepeatingNode$2.<init>:()V
            putstatic com.oracle.truffle.api.nodes.RepeatingNode.BREAK_LOOP_STATUS:Ljava/lang/Object;
         2: .line 82
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public abstract boolean executeRepeating(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      frame  

  public java.lang.Object executeRepeatingWithValue(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.nodes.RepeatingNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 107
            aload 0 /* this */
            aload 1 /* frame */
            invokeinterface com.oracle.truffle.api.nodes.RepeatingNode.executeRepeating:(Lcom/oracle/truffle/api/frame/VirtualFrame;)Z
            ifeq 2
         1: .line 108
            getstatic com.oracle.truffle.api.nodes.RepeatingNode.CONTINUE_LOOP_STATUS:Ljava/lang/Object;
            areturn
         2: .line 110
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.api.nodes.RepeatingNode.BREAK_LOOP_STATUS:Ljava/lang/Object;
            areturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.api.nodes.RepeatingNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/api/nodes/RepeatingNode;
            0    3     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  

  public java.lang.Object initialLoopStatus();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.nodes.RepeatingNode this
         0: .line 122
            getstatic com.oracle.truffle.api.nodes.RepeatingNode.CONTINUE_LOOP_STATUS:Ljava/lang/Object;
            areturn
        end local 0 // com.oracle.truffle.api.nodes.RepeatingNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/nodes/RepeatingNode;

  public boolean shouldContinue(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.nodes.RepeatingNode this
        start local 1 // java.lang.Object returnValue
         0: .line 136
            aload 1 /* returnValue */
            aload 0 /* this */
            invokeinterface com.oracle.truffle.api.nodes.RepeatingNode.initialLoopStatus:()Ljava/lang/Object;
            if_acmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // java.lang.Object returnValue
        end local 0 // com.oracle.truffle.api.nodes.RepeatingNode this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    2     0         this  Lcom/oracle/truffle/api/nodes/RepeatingNode;
            0    2     1  returnValue  Ljava/lang/Object;
    MethodParameters:
             Name  Flags
      returnValue  
}
SourceFile: "RepeatingNode.java"
NestMembers:
  com.oracle.truffle.api.nodes.RepeatingNode$1  com.oracle.truffle.api.nodes.RepeatingNode$2
InnerClasses:
  com.oracle.truffle.api.nodes.RepeatingNode$1
  com.oracle.truffle.api.nodes.RepeatingNode$2