https://www.graalvm.org/ 
public final class com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper implements com.oracle.truffle.api.interop.TruffleObject
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper
  super_class: java.lang.Object
{
  final com.oracle.truffle.api.object.DynamicObject scope;
    descriptor: Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0010) ACC_FINAL

  public void <init>(com.oracle.truffle.api.object.DynamicObject);
    descriptor: (Lcom/oracle/truffle/api/object/DynamicObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // com.oracle.truffle.api.object.DynamicObject scope
         0: .line 68
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 69
            aload 0 /* this */
            aload 1 /* scope */
            putfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
         2: .line 70
            return
        end local 1 // com.oracle.truffle.api.object.DynamicObject scope
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    3     1  scope  Lcom/oracle/truffle/api/object/DynamicObject;
    MethodParameters:
       Name  Flags
      scope  

  boolean isConst(java.lang.String, com.oracle.truffle.api.object.DynamicObjectLibrary);
    descriptor: (Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)Z
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // java.lang.String name
        start local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
         0: .line 73
            aload 2 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 1 /* name */
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.getProperty:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;)Lcom/oracle/truffle/api/object/Property;
            invokestatic com.oracle.truffle.js.runtime.objects.JSProperty.isConst:(Lcom/oracle/truffle/api/object/Property;)Z
            ireturn
        end local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    1     1    name  Ljava/lang/String;
            0    1     2  access  Lcom/oracle/truffle/api/object/DynamicObjectLibrary;
    MethodParameters:
        Name  Flags
      name    
      access  

  boolean hasMembers();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
         0: .line 79
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.Object getMembers(boolean, com.oracle.truffle.api.object.DynamicObjectLibrary);
    descriptor: (ZLcom/oracle/truffle/api/object/DynamicObjectLibrary;)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=4, locals=9, args_size=3
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // boolean includeInternal
        start local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
         0: .line 86
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            astore 3 /* keys */
        start local 3 // java.util.List keys
         1: .line 87
            aload 2 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.getKeyArray:(Lcom/oracle/truffle/api/object/DynamicObject;)[Ljava/lang/Object;
            dup
            astore 7
            arraylength
            istore 6
            iconst_0
            istore 5
            goto 8
      StackMap locals: com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper int com.oracle.truffle.api.object.DynamicObjectLibrary java.util.List top int int java.lang.Object[]
      StackMap stack:
         2: aload 7
            iload 5
            aaload
            astore 4 /* key */
        start local 4 // java.lang.Object key
         3: .line 88
            aload 4 /* key */
            instanceof java.lang.String
            ifeq 7
         4: .line 89
            aload 2 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 4 /* key */
            aconst_null
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.getOrDefault:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            astore 8 /* value */
        start local 8 // java.lang.Object value
         5: .line 90
            aload 8 /* value */
            ifnull 7
            aload 8 /* value */
            invokestatic com.oracle.truffle.js.runtime.objects.Dead.instance:()Lcom/oracle/truffle/js/runtime/objects/Dead;
            if_acmpeq 7
         6: .line 91
            aload 3 /* keys */
            aload 4 /* key */
            checkcast java.lang.String
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        end local 8 // java.lang.Object value
        end local 4 // java.lang.Object key
         7: .line 87
      StackMap locals:
      StackMap stack:
            iinc 5 1
      StackMap locals:
      StackMap stack:
         8: iload 5
            iload 6
            if_icmplt 2
         9: .line 95
            aload 3 /* keys */
            invokestatic com.oracle.truffle.js.runtime.interop.InteropList.create:(Ljava/util/List;)Lcom/oracle/truffle/api/interop/TruffleObject;
            areturn
        end local 3 // java.util.List keys
        end local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        end local 1 // boolean includeInternal
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0   10     0             this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0   10     1  includeInternal  Z
            0   10     2           access  Lcom/oracle/truffle/api/object/DynamicObjectLibrary;
            1   10     3             keys  Ljava/util/List<Ljava/lang/String;>;
            3    7     4              key  Ljava/lang/Object;
            5    7     8            value  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.library.CachedLibrary(value = "this.scope")
    MethodParameters:
                 Name  Flags
      includeInternal  
      access           

  boolean isMemberReadable(java.lang.String, com.oracle.truffle.api.object.DynamicObjectLibrary);
    descriptor: (Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)Z
    flags: (0x0000) 
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // java.lang.String name
        start local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
         0: .line 101
            aload 2 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 1 /* name */
            aconst_null
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.getOrDefault:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            astore 3 /* value */
        start local 3 // java.lang.Object value
         1: .line 102
            aload 3 /* value */
            ifnull 2
            aload 3 /* value */
            invokestatic com.oracle.truffle.js.runtime.objects.Dead.instance:()Lcom/oracle/truffle/js/runtime/objects/Dead;
            if_acmpne 3
         2: .line 103
      StackMap locals: java.lang.Object
      StackMap stack:
            iconst_0
            ireturn
         3: .line 105
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 3 // java.lang.Object value
        end local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    4     1    name  Ljava/lang/String;
            0    4     2  access  Lcom/oracle/truffle/api/object/DynamicObjectLibrary;
            1    4     3   value  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.library.CachedLibrary(value = "this.scope")
    MethodParameters:
        Name  Flags
      name    
      access  

  boolean isMemberModifiable(java.lang.String, com.oracle.truffle.api.object.DynamicObjectLibrary);
    descriptor: (Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)Z
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // java.lang.String name
        start local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
         0: .line 111
            aload 0 /* this */
            aload 1 /* name */
            aload 2 /* access */
            invokevirtual com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.isMemberReadable:(Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)Z
            ifeq 1
            aload 0 /* this */
            aload 1 /* name */
            aload 2 /* access */
            invokevirtual com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.isConst:(Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)Z
            ifne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    2     1    name  Ljava/lang/String;
            0    2     2  access  Lcom/oracle/truffle/api/object/DynamicObjectLibrary;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.library.CachedLibrary(value = "this.scope")
    MethodParameters:
        Name  Flags
      name    
      access  

  boolean isMemberInsertable(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0000) 
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // java.lang.String name
         0: .line 117
            iconst_0
            ireturn
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    1     1  name  Ljava/lang/String;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    MethodParameters:
      Name  Flags
      name  

  java.lang.Object readMember(java.lang.String, com.oracle.truffle.api.object.DynamicObjectLibrary, com.oracle.truffle.js.nodes.interop.ExportValueNode);
    descriptor: (Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;Lcom/oracle/truffle/js/nodes/interop/ExportValueNode;)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=4, locals=5, args_size=4
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // java.lang.String name
        start local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        start local 3 // com.oracle.truffle.js.nodes.interop.ExportValueNode exportValueNode
         0: .line 124
            aload 2 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 1 /* name */
            aconst_null
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.getOrDefault:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            astore 4 /* value */
        start local 4 // java.lang.Object value
         1: .line 125
            aload 4 /* value */
            ifnull 2
            aload 4 /* value */
            invokestatic com.oracle.truffle.js.runtime.objects.Dead.instance:()Lcom/oracle/truffle/js/runtime/objects/Dead;
            if_acmpne 3
         2: .line 126
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 1 /* name */
            invokestatic com.oracle.truffle.api.interop.UnknownIdentifierException.create:(Ljava/lang/String;)Lcom/oracle/truffle/api/interop/UnknownIdentifierException;
            athrow
         3: .line 128
      StackMap locals:
      StackMap stack:
            aload 3 /* exportValueNode */
            aload 4 /* value */
            invokevirtual com.oracle.truffle.js.nodes.interop.ExportValueNode.execute:(Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 4 // java.lang.Object value
        end local 3 // com.oracle.truffle.js.nodes.interop.ExportValueNode exportValueNode
        end local 2 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    4     0             this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    4     1             name  Ljava/lang/String;
            0    4     2           access  Lcom/oracle/truffle/api/object/DynamicObjectLibrary;
            0    4     3  exportValueNode  Lcom/oracle/truffle/js/nodes/interop/ExportValueNode;
            1    4     4            value  Ljava/lang/Object;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnknownIdentifierException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.library.CachedLibrary(value = "this.scope")
      2:
        com.oracle.truffle.api.dsl.Cached()
    MethodParameters:
                 Name  Flags
      name             
      access           
      exportValueNode  

  void writeMember(java.lang.String, java.lang.Object, com.oracle.truffle.api.object.DynamicObjectLibrary);
    descriptor: (Ljava/lang/String;Ljava/lang/Object;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)V
    flags: (0x0000) 
    Code:
      stack=4, locals=5, args_size=4
        start local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
        start local 1 // java.lang.String name
        start local 2 // java.lang.Object value
        start local 3 // com.oracle.truffle.api.object.DynamicObjectLibrary access
         0: .line 135
            aload 3 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 1 /* name */
            aconst_null
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.getOrDefault:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            astore 4 /* curValue */
        start local 4 // java.lang.Object curValue
         1: .line 136
            aload 4 /* curValue */
            ifnull 2
            aload 4 /* curValue */
            invokestatic com.oracle.truffle.js.runtime.objects.Dead.instance:()Lcom/oracle/truffle/js/runtime/objects/Dead;
            if_acmpne 3
         2: .line 137
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 1 /* name */
            invokestatic com.oracle.truffle.api.interop.UnknownIdentifierException.create:(Ljava/lang/String;)Lcom/oracle/truffle/api/interop/UnknownIdentifierException;
            athrow
         3: .line 138
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* name */
            aload 3 /* access */
            invokevirtual com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.isConst:(Ljava/lang/String;Lcom/oracle/truffle/api/object/DynamicObjectLibrary;)Z
            ifne 6
         4: .line 139
            aload 3 /* access */
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper.scope:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 1 /* name */
            aload 2 /* value */
            invokevirtual com.oracle.truffle.api.object.DynamicObjectLibrary.putIfPresent:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Ljava/lang/Object;)Z
            pop
         5: .line 140
            goto 7
         6: .line 141
      StackMap locals:
      StackMap stack:
            invokestatic com.oracle.truffle.api.interop.UnsupportedMessageException.create:()Lcom/oracle/truffle/api/interop/UnsupportedMessageException;
            athrow
         7: .line 143
      StackMap locals:
      StackMap stack:
            return
        end local 4 // java.lang.Object curValue
        end local 3 // com.oracle.truffle.api.object.DynamicObjectLibrary access
        end local 2 // java.lang.Object value
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.DynamicScopeWrapper this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    8     0      this  Lcom/oracle/truffle/js/runtime/interop/DynamicScopeWrapper;
            0    8     1      name  Ljava/lang/String;
            0    8     2     value  Ljava/lang/Object;
            0    8     3    access  Lcom/oracle/truffle/api/object/DynamicObjectLibrary;
            1    8     4  curValue  Ljava/lang/Object;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnsupportedMessageException, com.oracle.truffle.api.interop.UnknownIdentifierException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
      2:
        com.oracle.truffle.api.library.CachedLibrary(value = "this.scope")
    MethodParameters:
        Name  Flags
      name    
      value   
      access  
}
SourceFile: "DynamicScopeWrapper.java"
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/interop/InteropLibrary;)