https://www.graalvm.org/ 
public class com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode extends com.oracle.truffle.js.nodes.JavaScriptNode
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptNode
{
  private com.oracle.truffle.js.nodes.access.PropertyGetNode getDoneNode;
    descriptor: Lcom/oracle/truffle/js/nodes/access/PropertyGetNode;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  private com.oracle.truffle.js.nodes.JavaScriptNode iterResultNode;
    descriptor: Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  private com.oracle.truffle.js.nodes.cast.JSToBooleanNode toBooleanNode;
    descriptor: Lcom/oracle/truffle/js/nodes/cast/JSToBooleanNode;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  protected void <init>(com.oracle.truffle.js.runtime.JSContext, com.oracle.truffle.js.nodes.JavaScriptNode);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
        start local 1 // com.oracle.truffle.js.runtime.JSContext context
        start local 2 // com.oracle.truffle.js.nodes.JavaScriptNode iterResultNode
         0: .line 61
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptNode.<init>:()V
         1: .line 62
            aload 0 /* this */
            aload 2 /* iterResultNode */
            putfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.iterResultNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
         2: .line 63
            aload 0 /* this */
            ldc "done"
            iconst_0
            aload 1 /* context */
            invokestatic com.oracle.truffle.js.nodes.access.PropertyGetNode.create:(Ljava/lang/Object;ZLcom/oracle/truffle/js/runtime/JSContext;)Lcom/oracle/truffle/js/nodes/access/PropertyGetNode;
            putfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.getDoneNode:Lcom/oracle/truffle/js/nodes/access/PropertyGetNode;
         3: .line 64
            return
        end local 2 // com.oracle.truffle.js.nodes.JavaScriptNode iterResultNode
        end local 1 // com.oracle.truffle.js.runtime.JSContext context
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    4     0            this  Lcom/oracle/truffle/js/nodes/access/IteratorCompleteUnaryNode;
            0    4     1         context  Lcom/oracle/truffle/js/runtime/JSContext;
            0    4     2  iterResultNode  Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    MethodParameters:
                Name  Flags
      context         
      iterResultNode  

  public static com.oracle.truffle.js.nodes.JavaScriptNode create(com.oracle.truffle.js.runtime.JSContext, com.oracle.truffle.js.nodes.JavaScriptNode);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.runtime.JSContext context
        start local 1 // com.oracle.truffle.js.nodes.JavaScriptNode iterResultNode
         0: .line 67
            new com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode
            dup
            aload 0 /* context */
            aload 1 /* iterResultNode */
            invokespecial com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.<init>:(Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)V
            areturn
        end local 1 // com.oracle.truffle.js.nodes.JavaScriptNode iterResultNode
        end local 0 // com.oracle.truffle.js.runtime.JSContext context
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    1     0         context  Lcom/oracle/truffle/js/runtime/JSContext;
            0    1     1  iterResultNode  Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    MethodParameters:
                Name  Flags
      context         
      iterResultNode  

  public java.lang.Object execute(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.js.nodes.access.IteratorCompleteUnaryNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 72
            aload 0 /* this */
            aload 1 /* frame */
            invokevirtual com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.executeBoolean:(Lcom/oracle/truffle/api/frame/VirtualFrame;)Z
            invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
            areturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/js/nodes/access/IteratorCompleteUnaryNode;
            0    1     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  

  public boolean executeBoolean(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 77
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.iterResultNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            aload 1 /* frame */
            invokevirtual com.oracle.truffle.js.nodes.JavaScriptNode.execute:(Lcom/oracle/truffle/api/frame/VirtualFrame;)Ljava/lang/Object;
            astore 2 /* iterResult */
        start local 2 // java.lang.Object iterResult
         1: .line 78
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.getDoneNode:Lcom/oracle/truffle/js/nodes/access/PropertyGetNode;
            aload 2 /* iterResult */
            invokevirtual com.oracle.truffle.js.nodes.access.PropertyGetNode.getValue:(Ljava/lang/Object;)Ljava/lang/Object;
            astore 3 /* done */
        start local 3 // java.lang.Object done
         2: .line 79
            aload 3 /* done */
            instanceof java.lang.Boolean
            ifeq 4
         3: .line 80
            aload 3 /* done */
            checkcast java.lang.Boolean
            invokevirtual java.lang.Boolean.booleanValue:()Z
            ireturn
         4: .line 82
      StackMap locals: java.lang.Object java.lang.Object
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.toBooleanNode:Lcom/oracle/truffle/js/nodes/cast/JSToBooleanNode;
            ifnonnull 7
         5: .line 83
            invokestatic com.oracle.truffle.api.CompilerDirectives.transferToInterpreterAndInvalidate:()V
         6: .line 84
            aload 0 /* this */
            aload 0 /* this */
            invokestatic com.oracle.truffle.js.nodes.cast.JSToBooleanNode.create:()Lcom/oracle/truffle/js/nodes/cast/JSToBooleanNode;
            invokevirtual com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.insert:(Lcom/oracle/truffle/api/nodes/Node;)Lcom/oracle/truffle/api/nodes/Node;
            checkcast com.oracle.truffle.js.nodes.cast.JSToBooleanNode
            putfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.toBooleanNode:Lcom/oracle/truffle/js/nodes/cast/JSToBooleanNode;
         7: .line 86
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.toBooleanNode:Lcom/oracle/truffle/js/nodes/cast/JSToBooleanNode;
            aload 3 /* done */
            invokevirtual com.oracle.truffle.js.nodes.cast.JSToBooleanNode.executeBoolean:(Ljava/lang/Object;)Z
            ireturn
        end local 3 // java.lang.Object done
        end local 2 // java.lang.Object iterResult
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    8     0        this  Lcom/oracle/truffle/js/nodes/access/IteratorCompleteUnaryNode;
            0    8     1       frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
            1    8     2  iterResult  Ljava/lang/Object;
            2    8     3        done  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      frame  

  public final boolean isResultAlwaysOfType(java.lang.Class<?>);
    descriptor: (Ljava/lang/Class;)Z
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
        start local 1 // java.lang.Class clazz
         0: .line 91
            aload 1 /* clazz */
            getstatic java.lang.Boolean.TYPE:Ljava/lang/Class;
            if_acmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // java.lang.Class clazz
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lcom/oracle/truffle/js/nodes/access/IteratorCompleteUnaryNode;
            0    2     1  clazz  Ljava/lang/Class<*>;
    Signature: (Ljava/lang/Class<*>;)Z
    MethodParameters:
       Name  Flags
      clazz  

  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.IteratorCompleteUnaryNode this
        start local 1 // java.util.Set materializedTags
         0: .line 96
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.getDoneNode:Lcom/oracle/truffle/js/nodes/access/PropertyGetNode;
            invokevirtual com.oracle.truffle.js.nodes.access.PropertyGetNode.getContext:()Lcom/oracle/truffle/js/runtime/JSContext;
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.iterResultNode:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            aload 1 /* materializedTags */
            invokestatic com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.cloneUninitialized:(Lcom/oracle/truffle/js/nodes/JavaScriptNode;Ljava/util/Set;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            invokestatic com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode.create:(Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/JavaScriptNode;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            areturn
        end local 1 // java.util.Set materializedTags
        end local 0 // com.oracle.truffle.js.nodes.access.IteratorCompleteUnaryNode this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lcom/oracle/truffle/js/nodes/access/IteratorCompleteUnaryNode;
            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: "IteratorCompleteUnaryNode.java"
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node