https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject implements com.oracle.truffle.api.interop.TruffleObject
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject
  super_class: java.lang.Object
{
  final java.util.Map<java.lang.String, ? extends com.oracle.truffle.api.frame.FrameSlot> slots;
    descriptor: Ljava/util/Map;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/String;+Lcom/oracle/truffle/api/frame/FrameSlot;>;

  final com.oracle.truffle.api.nodes.RootNode root;
    descriptor: Lcom/oracle/truffle/api/nodes/RootNode;
    flags: (0x0010) ACC_FINAL

  final com.oracle.truffle.api.frame.Frame frame;
    descriptor: Lcom/oracle/truffle/api/frame/Frame;
    flags: (0x0010) ACC_FINAL

  private final java.lang.Class<? extends com.oracle.truffle.api.TruffleLanguage<?>> language;
    descriptor: Ljava/lang/Class;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/lang/Class<+Lcom/oracle/truffle/api/TruffleLanguage<*>;>;

  private void <init>(java.util.Map<java.lang.String, ? extends com.oracle.truffle.api.frame.FrameSlot>, com.oracle.truffle.api.nodes.RootNode, com.oracle.truffle.api.frame.Frame, java.lang.Class<? extends com.oracle.truffle.api.TruffleLanguage<?>>);
    descriptor: (Ljava/util/Map;Lcom/oracle/truffle/api/nodes/RootNode;Lcom/oracle/truffle/api/frame/Frame;Ljava/lang/Class;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=5, args_size=5
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // java.util.Map slots
        start local 2 // com.oracle.truffle.api.nodes.RootNode root
        start local 3 // com.oracle.truffle.api.frame.Frame frame
        start local 4 // java.lang.Class language
         0: .line 135
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 136
            aload 0 /* this */
            aload 1 /* slots */
            putfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.slots:Ljava/util/Map;
         2: .line 137
            aload 0 /* this */
            aload 2 /* root */
            putfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.root:Lcom/oracle/truffle/api/nodes/RootNode;
         3: .line 138
            aload 0 /* this */
            aload 3 /* frame */
            putfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.frame:Lcom/oracle/truffle/api/frame/Frame;
         4: .line 139
            aload 0 /* this */
            aload 4 /* language */
            putfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.language:Ljava/lang/Class;
         5: .line 140
            return
        end local 4 // java.lang.Class language
        end local 3 // com.oracle.truffle.api.frame.Frame frame
        end local 2 // com.oracle.truffle.api.nodes.RootNode root
        end local 1 // java.util.Map slots
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    6     0      this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    6     1     slots  Ljava/util/Map<Ljava/lang/String;+Lcom/oracle/truffle/api/frame/FrameSlot;>;
            0    6     2      root  Lcom/oracle/truffle/api/nodes/RootNode;
            0    6     3     frame  Lcom/oracle/truffle/api/frame/Frame;
            0    6     4  language  Ljava/lang/Class<+Lcom/oracle/truffle/api/TruffleLanguage<*>;>;
    Signature: (Ljava/util/Map<Ljava/lang/String;+Lcom/oracle/truffle/api/frame/FrameSlot;>;Lcom/oracle/truffle/api/nodes/RootNode;Lcom/oracle/truffle/api/frame/Frame;Ljava/lang/Class<+Lcom/oracle/truffle/api/TruffleLanguage<*>;>;)V
    MethodParameters:
          Name  Flags
      slots     
      root      
      frame     
      language  

  public static boolean isInstance(com.oracle.truffle.api.interop.TruffleObject);
    descriptor: (Lcom/oracle/truffle/api/interop/TruffleObject;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.interop.TruffleObject obj
         0: .line 143
            aload 0 /* obj */
            instanceof com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject
            ireturn
        end local 0 // com.oracle.truffle.api.interop.TruffleObject obj
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0   obj  Lcom/oracle/truffle/api/interop/TruffleObject;
    MethodParameters:
      Name  Flags
      obj   

  boolean hasLanguage();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
         0: .line 149
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.Class<? extends com.oracle.truffle.api.TruffleLanguage<?>> getLanguage();
    descriptor: ()Ljava/lang/Class;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
         0: .line 155
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.language:Ljava/lang/Class;
            areturn
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
    Signature: ()Ljava/lang/Class<+Lcom/oracle/truffle/api/TruffleLanguage<*>;>;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  boolean isScope();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
         0: .line 161
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  boolean hasMembers();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
         0: .line 167
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.Object readMember(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // java.lang.String member
         0: .line 173
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.frame:Lcom/oracle/truffle/api/frame/Frame;
            ifnonnull 2
         1: .line 174
            getstatic com.oracle.truffle.polyglot.DefaultScope$NullValue.INSTANCE:Lcom/oracle/truffle/polyglot/DefaultScope$NullValue;
            areturn
         2: .line 176
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.slots:Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.oracle.truffle.api.frame.FrameSlot
            astore 2 /* slot */
        start local 2 // com.oracle.truffle.api.frame.FrameSlot slot
         3: .line 177
            aload 2 /* slot */
            ifnonnull 5
         4: .line 178
            aload 1 /* member */
            invokestatic com.oracle.truffle.api.interop.UnknownIdentifierException.create:(Ljava/lang/String;)Lcom/oracle/truffle/api/interop/UnknownIdentifierException;
            athrow
         5: .line 180
      StackMap locals: com.oracle.truffle.api.frame.FrameSlot
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.frame:Lcom/oracle/truffle/api/frame/Frame;
            aload 2 /* slot */
            invokeinterface com.oracle.truffle.api.frame.Frame.getValue:(Lcom/oracle/truffle/api/frame/FrameSlot;)Ljava/lang/Object;
            areturn
        end local 2 // com.oracle.truffle.api.frame.FrameSlot slot
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    6     1  member  Ljava/lang/String;
            3    6     2    slot  Lcom/oracle/truffle/api/frame/FrameSlot;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnknownIdentifierException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      member  

  java.lang.Object getMembers(boolean);
    descriptor: (Z)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // boolean includeInternal
         0: .line 187
            new com.oracle.truffle.polyglot.DefaultScope$VariableNamesObject
            dup
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.slots:Ljava/util/Map;
            invokeinterface java.util.Map.keySet:()Ljava/util/Set;
            invokespecial com.oracle.truffle.polyglot.DefaultScope$VariableNamesObject.<init>:(Ljava/util/Set;)V
            areturn
        end local 1 // boolean includeInternal
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    1     0             this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    1     1  includeInternal  Z
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
                 Name  Flags
      includeInternal  

  boolean isMemberReadable(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // java.lang.String member
         0: .line 193
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.slots:Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            ireturn
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    1     1  member  Ljava/lang/String;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      member  

  boolean isMemberModifiable(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // java.lang.String member
         0: .line 199
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.slots:Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            ifeq 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.frame:Lcom/oracle/truffle/api/frame/Frame;
            ifnull 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    2     1  member  Ljava/lang/String;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      member  

  void writeMember(java.lang.String, java.lang.Object);
    descriptor: (Ljava/lang/String;Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // java.lang.String member
        start local 2 // java.lang.Object value
         0: .line 205
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.frame:Lcom/oracle/truffle/api/frame/Frame;
            ifnonnull 2
         1: .line 206
            invokestatic com.oracle.truffle.api.interop.UnsupportedMessageException.create:()Lcom/oracle/truffle/api/interop/UnsupportedMessageException;
            athrow
         2: .line 208
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.slots:Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.oracle.truffle.api.frame.FrameSlot
            astore 3 /* slot */
        start local 3 // com.oracle.truffle.api.frame.FrameSlot slot
         3: .line 209
            aload 3 /* slot */
            ifnonnull 5
         4: .line 210
            aload 1 /* member */
            invokestatic com.oracle.truffle.api.interop.UnknownIdentifierException.create:(Ljava/lang/String;)Lcom/oracle/truffle/api/interop/UnknownIdentifierException;
            athrow
         5: .line 212
      StackMap locals: com.oracle.truffle.api.frame.FrameSlot
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.frame:Lcom/oracle/truffle/api/frame/Frame;
            aload 3 /* slot */
            aload 2 /* value */
            invokeinterface com.oracle.truffle.api.frame.Frame.setObject:(Lcom/oracle/truffle/api/frame/FrameSlot;Ljava/lang/Object;)V
         6: .line 214
            return
        end local 3 // com.oracle.truffle.api.frame.FrameSlot slot
        end local 2 // java.lang.Object value
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0    this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    7     1  member  Ljava/lang/String;
            0    7     2   value  Ljava/lang/Object;
            3    7     3    slot  Lcom/oracle/truffle/api/frame/FrameSlot;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnknownIdentifierException, com.oracle.truffle.api.interop.UnsupportedMessageException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      member  
      value   

  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.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // java.lang.String member
         0: .line 219
            iconst_0
            ireturn
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    1     1  member  Ljava/lang/String;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    MethodParameters:
        Name  Flags
      member  

  boolean hasSourceLocation();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
         0: .line 225
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.root:Lcom/oracle/truffle/api/nodes/RootNode;
            invokevirtual com.oracle.truffle.api.nodes.RootNode.getSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            ifnull 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()

  com.oracle.truffle.api.source.SourceSection getSourceLocation();
    descriptor: ()Lcom/oracle/truffle/api/source/SourceSection;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
         0: .line 231
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.root:Lcom/oracle/truffle/api/nodes/RootNode;
            invokevirtual com.oracle.truffle.api.nodes.RootNode.getSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            areturn
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()

  java.lang.Object toDisplayString(boolean);
    descriptor: (Z)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=1, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
        start local 1 // boolean allowSideEffects
         0: .line 237
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject.root:Lcom/oracle/truffle/api/nodes/RootNode;
            invokevirtual com.oracle.truffle.api.nodes.RootNode.getName:()Ljava/lang/String;
            astore 2 /* name */
        start local 2 // java.lang.String name
         1: .line 238
            aload 2 /* name */
            ifnonnull 3
         2: .line 239
            ldc "local"
            astore 2 /* name */
         3: .line 241
      StackMap locals: java.lang.String
      StackMap stack:
            aload 2 /* name */
            areturn
        end local 2 // java.lang.String name
        end local 1 // boolean allowSideEffects
        end local 0 // com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    4     0              this  Lcom/oracle/truffle/polyglot/DefaultScope$VariablesMapObject;
            0    4     1  allowSideEffects  Z
            1    4     2              name  Ljava/lang/String;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
                  Name  Flags
      allowSideEffects  
}
SourceFile: "DefaultScope.java"
NestHost: com.oracle.truffle.polyglot.DefaultScope
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  final NullValue = com.oracle.truffle.polyglot.DefaultScope$NullValue of com.oracle.truffle.polyglot.DefaultScope
  final VariableNamesObject = com.oracle.truffle.polyglot.DefaultScope$VariableNamesObject of com.oracle.truffle.polyglot.DefaultScope
  final VariablesMapObject = com.oracle.truffle.polyglot.DefaultScope$VariablesMapObject of com.oracle.truffle.polyglot.DefaultScope
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/interop/InteropLibrary;)