https://www.graalvm.org/ 
final class com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode extends com.oracle.truffle.js.nodes.access.ScopeFrameNode
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode
  super_class: com.oracle.truffle.js.nodes.access.ScopeFrameNode
{
  private final int scopeLevel;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.api.frame.FrameSlot[] parentSlots;
    descriptor: [Lcom/oracle/truffle/api/frame/FrameSlot;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$CompilationFinal(dimensions = 1)

  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 132
            ldc Lcom/oracle/truffle/js/nodes/access/ScopeFrameNode;
            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.ScopeFrameNode$EnclosingScopeFrameNode.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(int, com.oracle.truffle.api.frame.FrameSlot[]);
    descriptor: (I[Lcom/oracle/truffle/api/frame/FrameSlot;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode this
        start local 1 // int scopeLevel
        start local 2 // com.oracle.truffle.api.frame.FrameSlot[] parentSlots
         0: .line 136
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.access.ScopeFrameNode.<init>:()V
         1: .line 137
            getstatic com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode.$assertionsDisabled:Z
            ifne 2
            iload 1 /* scopeLevel */
            iconst_1
            if_icmpge 2
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         2: .line 138
      StackMap locals: com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode int com.oracle.truffle.api.frame.FrameSlot[]
      StackMap stack:
            aload 0 /* this */
            iload 1 /* scopeLevel */
            putfield com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode.scopeLevel:I
         3: .line 139
            aload 0 /* this */
            aload 2 /* parentSlots */
            putfield com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode.parentSlots:[Lcom/oracle/truffle/api/frame/FrameSlot;
         4: .line 140
            return
        end local 2 // com.oracle.truffle.api.frame.FrameSlot[] parentSlots
        end local 1 // int scopeLevel
        end local 0 // com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lcom/oracle/truffle/js/nodes/access/ScopeFrameNode$EnclosingScopeFrameNode;
            0    5     1   scopeLevel  I
            0    5     2  parentSlots  [Lcom/oracle/truffle/api/frame/FrameSlot;
    MethodParameters:
             Name  Flags
      scopeLevel   
      parentSlots  

  public com.oracle.truffle.api.frame.Frame executeFrame(com.oracle.truffle.api.frame.Frame);
    descriptor: (Lcom/oracle/truffle/api/frame/Frame;)Lcom/oracle/truffle/api/frame/Frame;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode this
        start local 1 // com.oracle.truffle.api.frame.Frame frame
         0: .line 145
            aload 1 /* frame */
            astore 2 /* retFrame */
        start local 2 // com.oracle.truffle.api.frame.Frame retFrame
         1: .line 146
            iconst_0
            istore 3 /* i */
        start local 3 // int i
         2: goto 5
         3: .line 147
      StackMap locals: com.oracle.truffle.api.frame.Frame int
      StackMap stack:
            aload 2 /* retFrame */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode.parentSlots:[Lcom/oracle/truffle/api/frame/FrameSlot;
            iload 3 /* i */
            aaload
            invokestatic com.oracle.truffle.api.frame.FrameUtil.getObjectSafe:(Lcom/oracle/truffle/api/frame/Frame;Lcom/oracle/truffle/api/frame/FrameSlot;)Ljava/lang/Object;
            invokestatic com.oracle.truffle.js.runtime.JSFrameUtil.castMaterializedFrame:(Ljava/lang/Object;)Lcom/oracle/truffle/api/frame/MaterializedFrame;
            astore 2 /* retFrame */
         4: .line 146
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
         5: iload 3 /* i */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode.scopeLevel:I
            if_icmplt 3
        end local 3 // int i
         6: .line 149
            aload 2 /* retFrame */
            areturn
        end local 2 // com.oracle.truffle.api.frame.Frame retFrame
        end local 1 // com.oracle.truffle.api.frame.Frame frame
        end local 0 // com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    7     0      this  Lcom/oracle/truffle/js/nodes/access/ScopeFrameNode$EnclosingScopeFrameNode;
            0    7     1     frame  Lcom/oracle/truffle/api/frame/Frame;
            1    7     2  retFrame  Lcom/oracle/truffle/api/frame/Frame;
            2    6     3         i  I
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.ExplodeLoop()
    MethodParameters:
       Name  Flags
      frame  
}
SourceFile: "ScopeFrameNode.java"
NestHost: com.oracle.truffle.js.nodes.access.ScopeFrameNode
InnerClasses:
  public abstract CompilationFinal = com.oracle.truffle.api.CompilerDirectives$CompilationFinal of com.oracle.truffle.api.CompilerDirectives
  private final EnclosingScopeFrameNode = com.oracle.truffle.js.nodes.access.ScopeFrameNode$EnclosingScopeFrameNode of com.oracle.truffle.js.nodes.access.ScopeFrameNode