https://www.graalvm.org/ 
public abstract class com.oracle.truffle.js.nodes.access.IteratorSetDoneNode extends com.oracle.truffle.js.nodes.JavaScriptNode
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.oracle.truffle.js.nodes.access.IteratorSetDoneNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptNode
{
  com.oracle.truffle.js.nodes.JavaScriptNode iteratorNode;
    descriptor: Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0000) 
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()
    RuntimeInvisibleAnnotations: 
      com.oracle.truffle.api.dsl.Executed()

  com.oracle.truffle.js.nodes.JavaScriptNode isDoneNode;
    descriptor: Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0000) 
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()
    RuntimeInvisibleAnnotations: 
      com.oracle.truffle.api.dsl.Executed()

  protected void <init>(com.oracle.truffle.js.nodes.JavaScriptNode, com.oracle.truffle.js.nodes.JavaScriptNode);
    descriptor: (Lcom/oracle/truffle/js/nodes/JavaScriptNode;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.nodes.access.IteratorSetDoneNode this
        start local 1 // com.oracle.truffle.js.nodes.JavaScriptNode iteratorNode
        start local 2 // com.oracle.truffle.js.nodes.JavaScriptNode isDoneNode
         0: .line 58
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptNode.<init>:()V
         1: .line 59
            aload 0 /* this */
            aload 1 /* iteratorNode */
            putfield com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.iteratorNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
         2: .line 60
            aload 0 /* this */
            aload 2 /* isDoneNode */
            putfield com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.isDoneNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
         3: .line 61
            return
        end local 2 // com.oracle.truffle.js.nodes.JavaScriptNode isDoneNode
        end local 1 // com.oracle.truffle.js.nodes.JavaScriptNode iteratorNode
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorSetDoneNode this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    4     0          this  Lcom/oracle/truffle/js/nodes/access/IteratorSetDoneNode;
            0    4     1  iteratorNode  Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            0    4     2    isDoneNode  Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    MethodParameters:
              Name  Flags
      iteratorNode  
      isDoneNode    

  public static com.oracle.truffle.js.nodes.access.IteratorSetDoneNode create(com.oracle.truffle.js.nodes.JavaScriptNode, com.oracle.truffle.js.nodes.JavaScriptNode);
    descriptor: (Lcom/oracle/truffle/js/nodes/JavaScriptNode;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)Lcom/oracle/truffle/js/nodes/access/IteratorSetDoneNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=2
         0: .line 64
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tIteratorSetDoneNodeGen cannot be resolved\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    MethodParameters:
              Name  Flags
      iteratorNode  
      isDoneNode    

  protected static boolean doIteratorStep(com.oracle.truffle.js.runtime.objects.IteratorRecord, boolean);
    descriptor: (Lcom/oracle/truffle/js/runtime/objects/IteratorRecord;Z)Z
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.runtime.objects.IteratorRecord iteratorRecord
        start local 1 // boolean isDone
         0: .line 69
            aload 0 /* iteratorRecord */
            iload 1 /* isDone */
            invokevirtual com.oracle.truffle.js.runtime.objects.IteratorRecord.setDone:(Z)V
         1: .line 70
            iload 1 /* isDone */
            ireturn
        end local 1 // boolean isDone
        end local 0 // com.oracle.truffle.js.runtime.objects.IteratorRecord iteratorRecord
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    2     0  iteratorRecord  Lcom/oracle/truffle/js/runtime/objects/IteratorRecord;
            0    2     1          isDone  Z
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
    MethodParameters:
                Name  Flags
      iteratorRecord  
      isDone          

  protected com.oracle.truffle.js.nodes.JavaScriptNode copyUninitialized(java.util.Set<java.lang.Class<? extends com.oracle.truffle.api.instrumentation.Tag>>);
    descriptor: (Ljava/util/Set;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.IteratorSetDoneNode this
        start local 1 // java.util.Set materializedTags
         0: .line 75
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.iteratorNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            aload 1 /* materializedTags */
            invokestatic com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.cloneUninitialized:(Lcom/oracle/truffle/js/nodes/JavaScriptNode;Ljava/util/Set;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.isDoneNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            aload 1 /* materializedTags */
            invokestatic com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.cloneUninitialized:(Lcom/oracle/truffle/js/nodes/JavaScriptNode;Ljava/util/Set;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            invokestatic com.oracle.truffle.js.nodes.access.IteratorSetDoneNode.create:(Lcom/oracle/truffle/js/nodes/JavaScriptNode;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)Lcom/oracle/truffle/js/nodes/access/IteratorSetDoneNode;
            areturn
        end local 1 // java.util.Set materializedTags
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorSetDoneNode this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lcom/oracle/truffle/js/nodes/access/IteratorSetDoneNode;
            0    1     1  materializedTags  Ljava/util/Set<Ljava/lang/Class<+Lcom/oracle/truffle/api/instrumentation/Tag;>;>;
    Signature: (Ljava/util/Set<Ljava/lang/Class<+Lcom/oracle/truffle/api/instrumentation/Tag;>;>;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    MethodParameters:
                  Name  Flags
      materializedTags  
}
SourceFile: "IteratorSetDoneNode.java"
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node