https://www.graalvm.org/ 
public final class com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode extends com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$HasCacheNode
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode
  super_class: com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$HasCacheNode
{
  private com.oracle.truffle.api.interop.InteropLibrary interop;
    descriptor: Lcom/oracle/truffle/api/interop/InteropLibrary;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  private final com.oracle.truffle.js.runtime.util.JSClassProfile jsclassProfile;
    descriptor: Lcom/oracle/truffle/js/runtime/util/JSClassProfile;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 229
            ldc Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode this
         0: .line 234
            aload 0 /* this */
            aconst_null
            invokespecial com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$HasCacheNode.<init>:(Lcom/oracle/truffle/js/nodes/access/PropertyCacheNode$ReceiverCheckNode;)V
         1: .line 231
            aload 0 /* this */
            invokestatic com.oracle.truffle.js.runtime.util.JSClassProfile.create:()Lcom/oracle/truffle/js/runtime/util/JSClassProfile;
            putfield com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.jsclassProfile:Lcom/oracle/truffle/js/runtime/util/JSClassProfile;
         2: .line 235
            aload 0 /* this */
            invokestatic com.oracle.truffle.api.interop.InteropLibrary.getFactory:()Lcom/oracle/truffle/api/library/LibraryFactory;
            iconst_5
            invokevirtual com.oracle.truffle.api.library.LibraryFactory.createDispatched:(I)Lcom/oracle/truffle/api/library/Library;
            checkcast com.oracle.truffle.api.interop.InteropLibrary
            putfield com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.interop:Lcom/oracle/truffle/api/interop/InteropLibrary;
         3: .line 236
            return
        end local 0 // com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode$GenericHasPropertyCacheNode;

  protected boolean hasProperty(java.lang.Object, com.oracle.truffle.js.nodes.access.HasPropertyCacheNode);
    descriptor: (Ljava/lang/Object;Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;)Z
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode this
        start local 1 // java.lang.Object thisObj
        start local 2 // com.oracle.truffle.js.nodes.access.HasPropertyCacheNode root
         0: .line 240
            aload 1 /* thisObj */
            invokestatic com.oracle.truffle.js.runtime.objects.JSDynamicObject.isJSDynamicObject:(Ljava/lang/Object;)Z
            ifeq 5
         1: .line 241
            aload 2 /* root */
            invokevirtual com.oracle.truffle.js.nodes.access.HasPropertyCacheNode.getKey:()Ljava/lang/Object;
            astore 3 /* key */
        start local 3 // java.lang.Object key
         2: .line 242
            aload 2 /* root */
            invokevirtual com.oracle.truffle.js.nodes.access.HasPropertyCacheNode.isOwnProperty:()Z
            ifeq 4
         3: .line 243
            aload 1 /* thisObj */
            checkcast com.oracle.truffle.api.object.DynamicObject
            aload 3 /* key */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.jsclassProfile:Lcom/oracle/truffle/js/runtime/util/JSClassProfile;
            invokestatic com.oracle.truffle.js.runtime.objects.JSObject.hasOwnProperty:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Lcom/oracle/truffle/js/runtime/util/JSClassProfile;)Z
            ireturn
         4: .line 245
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 1 /* thisObj */
            checkcast com.oracle.truffle.api.object.DynamicObject
            aload 3 /* key */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.jsclassProfile:Lcom/oracle/truffle/js/runtime/util/JSClassProfile;
            invokestatic com.oracle.truffle.js.runtime.objects.JSObject.hasProperty:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Lcom/oracle/truffle/js/runtime/util/JSClassProfile;)Z
            ireturn
        end local 3 // java.lang.Object key
         5: .line 248
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.$assertionsDisabled:Z
            ifne 6
            aload 1 /* thisObj */
            invokestatic com.oracle.truffle.js.runtime.JSRuntime.isForeignObject:(Ljava/lang/Object;)Z
            ifne 6
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         6: .line 249
      StackMap locals:
      StackMap stack:
            aload 2 /* root */
            invokevirtual com.oracle.truffle.js.nodes.access.HasPropertyCacheNode.getKey:()Ljava/lang/Object;
            astore 3 /* key */
        start local 3 // java.lang.Object key
         7: .line 250
            aload 3 /* key */
            instanceof java.lang.String
            ifeq 9
         8: .line 251
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode.interop:Lcom/oracle/truffle/api/interop/InteropLibrary;
            aload 1 /* thisObj */
            aload 3 /* key */
            checkcast java.lang.String
            invokevirtual com.oracle.truffle.api.interop.InteropLibrary.isMemberExisting:(Ljava/lang/Object;Ljava/lang/String;)Z
            ireturn
         9: .line 253
      StackMap locals: java.lang.Object
      StackMap stack:
            iconst_0
            ireturn
        end local 3 // java.lang.Object key
        end local 2 // com.oracle.truffle.js.nodes.access.HasPropertyCacheNode root
        end local 1 // java.lang.Object thisObj
        end local 0 // com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   10     0     this  Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode$GenericHasPropertyCacheNode;
            0   10     1  thisObj  Ljava/lang/Object;
            0   10     2     root  Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
            2    5     3      key  Ljava/lang/Object;
            7   10     3      key  Ljava/lang/Object;
    MethodParameters:
         Name  Flags
      thisObj  
      root     
}
SourceFile: "HasPropertyCacheNode.java"
NestHost: com.oracle.truffle.js.nodes.access.HasPropertyCacheNode
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node
  public final GenericHasPropertyCacheNode = com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$GenericHasPropertyCacheNode of com.oracle.truffle.js.nodes.access.HasPropertyCacheNode
  public abstract HasCacheNode = com.oracle.truffle.js.nodes.access.HasPropertyCacheNode$HasCacheNode of com.oracle.truffle.js.nodes.access.HasPropertyCacheNode
  protected abstract ReceiverCheckNode = com.oracle.truffle.js.nodes.access.PropertyCacheNode$ReceiverCheckNode of com.oracle.truffle.js.nodes.access.PropertyCacheNode
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.NodeInfo(cost = com.oracle.truffle.api.nodes.NodeCost.MEGAMORPHIC:Lcom/oracle/truffle/api/nodes/NodeCost;)