https://www.graalvm.org/ 
public class com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode extends com.oracle.truffle.js.nodes.JavaScriptNode implements com.oracle.truffle.js.nodes.RepeatableNode
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptNode
{
  protected final int index;
    descriptor: I
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  private boolean wasTrue;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$CompilationFinal()

  private boolean wasFalse;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$CompilationFinal()

  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 54
            ldc Lcom/oracle/truffle/js/nodes/arguments/AccessIndexedArgumentNode;
            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.arguments.AccessIndexedArgumentNode.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(int);
    descriptor: (I)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
        start local 1 // int index
         0: .line 59
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptNode.<init>:()V
         1: .line 60
            aload 0 /* this */
            iload 1 /* index */
            putfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.index:I
         2: .line 61
            return
        end local 1 // int index
        end local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/js/nodes/arguments/AccessIndexedArgumentNode;
            0    3     1  index  I
    MethodParameters:
       Name  Flags
      index  

  public static com.oracle.truffle.js.nodes.JavaScriptNode create(int);
    descriptor: (I)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // int paramIndex
         0: .line 64
            new com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode
            dup
            iload 0 /* paramIndex */
            invokespecial com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.<init>:(I)V
            areturn
        end local 0 // int paramIndex
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0  paramIndex  I
    MethodParameters:
            Name  Flags
      paramIndex  

  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=3, locals=4, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 69
            aload 1 /* frame */
            invokeinterface com.oracle.truffle.api.frame.VirtualFrame.getArguments:()[Ljava/lang/Object;
            astore 2 /* jsArguments */
        start local 2 // java.lang.Object[] jsArguments
         1: .line 70
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.index:I
            aload 2 /* jsArguments */
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getUserArgumentCount:([Ljava/lang/Object;)I
            if_icmpge 2
            iconst_1
            goto 3
      StackMap locals: com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode com.oracle.truffle.api.frame.VirtualFrame java.lang.Object[]
      StackMap stack: com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode
         2: iconst_0
      StackMap locals: com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode com.oracle.truffle.api.frame.VirtualFrame java.lang.Object[]
      StackMap stack: com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode int
         3: invokevirtual com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.profile:(Z)Z
            ifeq 7
         4: .line 71
            aload 2 /* jsArguments */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.index:I
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getUserArgument:([Ljava/lang/Object;I)Ljava/lang/Object;
            astore 3 /* userArg */
        start local 3 // java.lang.Object userArg
         5: .line 72
            getstatic com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.$assertionsDisabled:Z
            ifne 6
            aload 3 /* userArg */
            ifnonnull 6
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         6: .line 73
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 3 /* userArg */
            areturn
        end local 3 // java.lang.Object userArg
         7: .line 75
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.js.runtime.objects.Undefined.instance:Lcom/oracle/truffle/js/runtime/objects/JSDynamicObject;
            areturn
        end local 2 // java.lang.Object[] jsArguments
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    8     0         this  Lcom/oracle/truffle/js/nodes/arguments/AccessIndexedArgumentNode;
            0    8     1        frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
            1    8     2  jsArguments  [Ljava/lang/Object;
            5    7     3      userArg  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      frame  

  protected final boolean profile(boolean);
    descriptor: (Z)Z
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
        start local 1 // boolean value
         0: .line 82
            iload 1 /* value */
            ifeq 5
         1: .line 83
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.wasTrue:Z
            ifne 4
         2: .line 84
            invokestatic com.oracle.truffle.api.CompilerDirectives.transferToInterpreterAndInvalidate:()V
         3: .line 85
            aload 0 /* this */
            iconst_1
            putfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.wasTrue:Z
         4: .line 87
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
         5: .line 89
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.wasFalse:Z
            ifne 8
         6: .line 90
            invokestatic com.oracle.truffle.api.CompilerDirectives.transferToInterpreterAndInvalidate:()V
         7: .line 91
            aload 0 /* this */
            iconst_1
            putfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.wasFalse:Z
         8: .line 93
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        end local 1 // boolean value
        end local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    9     0   this  Lcom/oracle/truffle/js/nodes/arguments/AccessIndexedArgumentNode;
            0    9     1  value  Z
    MethodParameters:
       Name  Flags
      value  

  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=1, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
        start local 1 // java.util.Set materializedTags
         0: .line 99
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.index:I
            invokestatic com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.create:(I)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            areturn
        end local 1 // java.util.Set materializedTags
        end local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lcom/oracle/truffle/js/nodes/arguments/AccessIndexedArgumentNode;
            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  

  public int getIndex();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
         0: .line 103
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode.index:I
            ireturn
        end local 0 // com.oracle.truffle.js.nodes.arguments.AccessIndexedArgumentNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/arguments/AccessIndexedArgumentNode;
}
SourceFile: "AccessIndexedArgumentNode.java"
InnerClasses:
  public abstract CompilationFinal = com.oracle.truffle.api.CompilerDirectives$CompilationFinal of com.oracle.truffle.api.CompilerDirectives