https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.PolyglotBindings 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.PolyglotBindings
  super_class: java.lang.Object
{
  private final com.oracle.truffle.polyglot.PolyglotContextImpl context;
    descriptor: Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext;
    descriptor: Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private volatile java.util.Map<java.lang.String, org.graalvm.polyglot.Value> bindings;
    descriptor: Ljava/util/Map;
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE
    Signature: Ljava/util/Map<Ljava/lang/String;Lorg/graalvm/polyglot/Value;>;

  void <init>(com.oracle.truffle.polyglot.PolyglotContextImpl);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotContextImpl;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
        start local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl context
         0: .line 67
            aload 0 /* this */
            aload 1 /* context */
            aconst_null
            invokespecial com.oracle.truffle.polyglot.PolyglotBindings.<init>:(Lcom/oracle/truffle/polyglot/PolyglotContextImpl;Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;)V
         1: .line 68
            return
        end local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl context
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    2     1  context  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
    MethodParameters:
         Name  Flags
      context  

  void <init>(com.oracle.truffle.polyglot.PolyglotLanguageContext);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
        start local 1 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
         0: .line 71
            aload 0 /* this */
            aload 1 /* languageContext */
            getfield com.oracle.truffle.polyglot.PolyglotLanguageContext.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            aload 1 /* languageContext */
            invokespecial com.oracle.truffle.polyglot.PolyglotBindings.<init>:(Lcom/oracle/truffle/polyglot/PolyglotContextImpl;Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;)V
         1: .line 72
            return
        end local 1 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    2     0             this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    2     1  languageContext  Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
    MethodParameters:
                 Name  Flags
      languageContext  

  private void <init>(com.oracle.truffle.polyglot.PolyglotContextImpl, com.oracle.truffle.polyglot.PolyglotLanguageContext);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotContextImpl;Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
        start local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl context
        start local 2 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
         0: .line 74
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 75
            aload 1 /* context */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         2: .line 76
            aload 0 /* this */
            aload 1 /* context */
            putfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
         3: .line 77
            aload 0 /* this */
            aload 2 /* languageContext */
            putfield com.oracle.truffle.polyglot.PolyglotBindings.languageContext:Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
         4: .line 78
            return
        end local 2 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
        end local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl context
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    5     0             this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    5     1          context  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            0    5     2  languageContext  Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
    MethodParameters:
                 Name  Flags
      context          
      languageContext  

  public java.util.Map<java.lang.String, org.graalvm.polyglot.Value> getBindings();
    descriptor: ()Ljava/util/Map;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
         0: .line 81
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.bindings:Ljava/util/Map;
            astore 1 /* localBindings */
        start local 1 // java.util.Map localBindings
         1: .line 82
            aload 1 /* localBindings */
            ifnonnull 3
         2: .line 83
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.getPolyglotGuestBindings:()Ljava/util/Map;
            dup
            astore 1 /* localBindings */
            putfield com.oracle.truffle.polyglot.PolyglotBindings.bindings:Ljava/util/Map;
         3: .line 85
      StackMap locals: java.util.Map
      StackMap stack:
            aload 1 /* localBindings */
            areturn
        end local 1 // java.util.Map localBindings
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    4     0           this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            1    4     1  localBindings  Ljava/util/Map<Ljava/lang/String;Lorg/graalvm/polyglot/Value;>;
    Signature: ()Ljava/util/Map<Ljava/lang/String;Lorg/graalvm/polyglot/Value;>;

  boolean hasMembers();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
         0: .line 91
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.Object readMember(java.lang.String, com.oracle.truffle.api.interop.InteropLibrary);
    descriptor: (Ljava/lang/String;Lcom/oracle/truffle/api/interop/InteropLibrary;)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=3, locals=5, args_size=3
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
        start local 1 // java.lang.String member
        start local 2 // com.oracle.truffle.api.interop.InteropLibrary thisLibrary
         0: .line 97
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotBindings.getBindings:()Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.graalvm.polyglot.Value
            astore 3 /* value */
        start local 3 // org.graalvm.polyglot.Value value
         1: .line 98
            aload 3 /* value */
            ifnonnull 6
         2: .line 100
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            aload 1 /* member */
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.findLegacyExportedSymbol:(Ljava/lang/String;)Lorg/graalvm/polyglot/Value;
            astore 4 /* legacyValue */
        start local 4 // org.graalvm.polyglot.Value legacyValue
         3: .line 101
            aload 4 /* legacyValue */
            ifnull 5
         4: .line 102
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.getAPIAccess:()Lorg/graalvm/polyglot/impl/AbstractPolyglotImpl$APIAccess;
            aload 4 /* legacyValue */
            invokevirtual org.graalvm.polyglot.impl.AbstractPolyglotImpl$APIAccess.getReceiver:(Lorg/graalvm/polyglot/Value;)Ljava/lang/Object;
            areturn
         5: .line 104
      StackMap locals: org.graalvm.polyglot.Value org.graalvm.polyglot.Value
      StackMap stack:
            aload 1 /* member */
            invokestatic com.oracle.truffle.api.interop.UnknownIdentifierException.create:(Ljava/lang/String;)Lcom/oracle/truffle/api/interop/UnknownIdentifierException;
            athrow
        end local 4 // org.graalvm.polyglot.Value legacyValue
         6: .line 106
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.languageContext:Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            ifnull 8
         7: .line 107
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.languageContext:Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            aload 2 /* thisLibrary */
            aload 3 /* value */
            invokevirtual com.oracle.truffle.polyglot.PolyglotLanguageContext.toGuestValue:(Lcom/oracle/truffle/api/nodes/Node;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
         8: .line 109
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.getAPIAccess:()Lorg/graalvm/polyglot/impl/AbstractPolyglotImpl$APIAccess;
            aload 3 /* value */
            invokevirtual org.graalvm.polyglot.impl.AbstractPolyglotImpl$APIAccess.getReceiver:(Lorg/graalvm/polyglot/Value;)Ljava/lang/Object;
            areturn
        end local 3 // org.graalvm.polyglot.Value value
        end local 2 // com.oracle.truffle.api.interop.InteropLibrary thisLibrary
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    9     0         this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    9     1       member  Ljava/lang/String;
            0    9     2  thisLibrary  Lcom/oracle/truffle/api/interop/InteropLibrary;
            1    9     3        value  Lorg/graalvm/polyglot/Value;
            3    6     4  legacyValue  Lorg/graalvm/polyglot/Value;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnknownIdentifierException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.library.CachedLibrary(value = "this")
    MethodParameters:
             Name  Flags
      member       
      thisLibrary  

  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.PolyglotBindings this
        start local 1 // java.lang.String member
        start local 2 // java.lang.Object value
         0: .line 116
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.languageContext:Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            ifnull 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.languageContext:Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            aload 2 /* value */
            invokevirtual com.oracle.truffle.polyglot.PolyglotLanguageContext.asValue:(Ljava/lang/Object;)Lorg/graalvm/polyglot/Value;
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            aload 2 /* value */
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.asValue:(Ljava/lang/Object;)Lorg/graalvm/polyglot/Value;
      StackMap locals:
      StackMap stack: org.graalvm.polyglot.Value
         2: astore 3 /* v */
        start local 3 // org.graalvm.polyglot.Value v
         3: .line 117
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotBindings.getBindings:()Ljava/util/Map;
            aload 1 /* member */
            aload 3 /* v */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         4: .line 118
            return
        end local 3 // org.graalvm.polyglot.Value v
        end local 2 // java.lang.Object value
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0    this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    5     1  member  Ljava/lang/String;
            0    5     2   value  Ljava/lang/Object;
            3    5     3       v  Lorg/graalvm/polyglot/Value;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      member  
      value   

  void removeMember(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
        start local 1 // java.lang.String member
         0: .line 123
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotBindings.getBindings:()Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.remove:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.graalvm.polyglot.Value
            astore 2 /* ret */
        start local 2 // org.graalvm.polyglot.Value ret
         1: .line 124
            aload 2 /* ret */
            ifnonnull 3
         2: .line 125
            aload 1 /* member */
            invokestatic com.oracle.truffle.api.interop.UnknownIdentifierException.create:(Ljava/lang/String;)Lcom/oracle/truffle/api/interop/UnknownIdentifierException;
            athrow
         3: .line 127
      StackMap locals: org.graalvm.polyglot.Value
      StackMap stack:
            return
        end local 2 // org.graalvm.polyglot.Value ret
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    4     1  member  Ljava/lang/String;
            1    4     2     ret  Lorg/graalvm/polyglot/Value;
    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.PolyglotBindings this
        start local 1 // boolean includeInternal
         0: .line 132
            new com.oracle.truffle.polyglot.DefaultScope$VariableNamesObject
            dup
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotBindings.getBindings:()Ljava/util/Map;
            invokeinterface java.util.Map.keySet:()Ljava/util/Set;
            invokespecial com.oracle.truffle.polyglot.DefaultScope$VariableNamesObject.<init>:(Ljava/util/Set;)V
            areturn
        end local 1 // boolean includeInternal
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    1     0             this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    1     1  includeInternal  Z
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
                 Name  Flags
      includeInternal  

  boolean isMemberExisting(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
        start local 1 // java.lang.String member
         0: .line 140
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotBindings.getBindings:()Ljava/util/Map;
            aload 1 /* member */
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            istore 2 /* existing */
        start local 2 // boolean existing
         1: .line 141
            iload 2 /* existing */
            ifne 4
         2: .line 142
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotBindings.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            aload 1 /* member */
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.findLegacyExportedSymbol:(Ljava/lang/String;)Lorg/graalvm/polyglot/Value;
            ifnull 3
            iconst_1
            ireturn
      StackMap locals: int
      StackMap stack:
         3: iconst_0
            ireturn
         4: .line 144
      StackMap locals:
      StackMap stack:
            iload 2 /* existing */
            ireturn
        end local 2 // boolean existing
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0      this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    5     1    member  Ljava/lang/String;
            1    5     2  existing  Z
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage$Repeat(value = {com.oracle.truffle.api.library.ExportMessage(name = "isMemberReadable"), com.oracle.truffle.api.library.ExportMessage(name = "isMemberModifiable"), com.oracle.truffle.api.library.ExportMessage(name = "isMemberRemovable")})
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      member  

  boolean isMemberInsertable(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.PolyglotBindings this
        start local 1 // java.lang.String member
         0: .line 149
            aload 0 /* this */
            aload 1 /* member */
            invokevirtual com.oracle.truffle.polyglot.PolyglotBindings.isMemberExisting:(Ljava/lang/String;)Z
            ifeq 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_1
      StackMap locals:
      StackMap stack: int
         2: ireturn
        end local 1 // java.lang.String member
        end local 0 // com.oracle.truffle.polyglot.PolyglotBindings this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lcom/oracle/truffle/polyglot/PolyglotBindings;
            0    3     1  member  Ljava/lang/String;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    MethodParameters:
        Name  Flags
      member  
}
SourceFile: "PolyglotBindings.java"
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  public abstract Repeat = com.oracle.truffle.api.library.ExportMessage$Repeat of com.oracle.truffle.api.library.ExportMessage
  final VariableNamesObject = com.oracle.truffle.polyglot.DefaultScope$VariableNamesObject of com.oracle.truffle.polyglot.DefaultScope
  public abstract APIAccess = org.graalvm.polyglot.impl.AbstractPolyglotImpl$APIAccess of org.graalvm.polyglot.impl.AbstractPolyglotImpl
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/interop/InteropLibrary;)