https://www.graalvm.org/ 
class com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty implements com.oracle.truffle.js.runtime.objects.PropertyProxy
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty
  super_class: java.lang.Object
{
  private final com.oracle.truffle.api.object.DynamicObject source;
    descriptor: Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.Object key;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.js.runtime.builtins.JSClass sourceClass;
    descriptor: Lcom/oracle/truffle/js/runtime/builtins/JSClass;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(com.oracle.truffle.api.object.DynamicObject, java.lang.Object, com.oracle.truffle.js.runtime.builtins.JSClass);
    descriptor: (Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Lcom/oracle/truffle/js/runtime/builtins/JSClass;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty this
        start local 1 // com.oracle.truffle.api.object.DynamicObject source
        start local 2 // java.lang.Object key
        start local 3 // com.oracle.truffle.js.runtime.builtins.JSClass sourceClass
         0: .line 1350
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 1351
            aload 0 /* this */
            aload 1 /* source */
            putfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.source:Lcom/oracle/truffle/api/object/DynamicObject;
         2: .line 1352
            aload 0 /* this */
            aload 2 /* key */
            putfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.key:Ljava/lang/Object;
         3: .line 1353
            aload 0 /* this */
            aload 3 /* sourceClass */
            putfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.sourceClass:Lcom/oracle/truffle/js/runtime/builtins/JSClass;
         4: .line 1354
            return
        end local 3 // com.oracle.truffle.js.runtime.builtins.JSClass sourceClass
        end local 2 // java.lang.Object key
        end local 1 // com.oracle.truffle.api.object.DynamicObject source
        end local 0 // com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lcom/oracle/truffle/js/builtins/ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty;
            0    5     1       source  Lcom/oracle/truffle/api/object/DynamicObject;
            0    5     2          key  Ljava/lang/Object;
            0    5     3  sourceClass  Lcom/oracle/truffle/js/runtime/builtins/JSClass;
    MethodParameters:
             Name  Flags
      source       
      key          
      sourceClass  

  public java.lang.Object get(com.oracle.truffle.api.object.DynamicObject);
    descriptor: (Lcom/oracle/truffle/api/object/DynamicObject;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty this
        start local 1 // com.oracle.truffle.api.object.DynamicObject store
         0: .line 1358
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.sourceClass:Lcom/oracle/truffle/js/runtime/builtins/JSClass;
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.source:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.key:Ljava/lang/Object;
            invokevirtual com.oracle.truffle.js.runtime.builtins.JSClass.get:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 1 // com.oracle.truffle.api.object.DynamicObject store
        end local 0 // com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/js/builtins/ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty;
            0    1     1  store  Lcom/oracle/truffle/api/object/DynamicObject;
    MethodParameters:
       Name  Flags
      store  

  public boolean set(com.oracle.truffle.api.object.DynamicObject, java.lang.Object);
    descriptor: (Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty this
        start local 1 // com.oracle.truffle.api.object.DynamicObject store
        start local 2 // java.lang.Object value
         0: .line 1363
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.sourceClass:Lcom/oracle/truffle/js/runtime/builtins/JSClass;
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.source:Lcom/oracle/truffle/api/object/DynamicObject;
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.key:Ljava/lang/Object;
            aload 2 /* value */
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty.source:Lcom/oracle/truffle/api/object/DynamicObject;
            iconst_0
            aconst_null
            invokevirtual com.oracle.truffle.js.runtime.builtins.JSClass.set:(Lcom/oracle/truffle/api/object/DynamicObject;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;ZLcom/oracle/truffle/api/nodes/Node;)Z
            ireturn
        end local 2 // java.lang.Object value
        end local 1 // com.oracle.truffle.api.object.DynamicObject store
        end local 0 // com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/js/builtins/ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty;
            0    1     1  store  Lcom/oracle/truffle/api/object/DynamicObject;
            0    1     2  value  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      store  
      value  
}
SourceFile: "ObjectFunctionBuiltins.java"
NestHost: com.oracle.truffle.js.builtins.ObjectFunctionBuiltins
InnerClasses:
  public abstract ObjectBindPropertiesNode = com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode of com.oracle.truffle.js.builtins.ObjectFunctionBuiltins
  BoundProperty = com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode$BoundProperty of com.oracle.truffle.js.builtins.ObjectFunctionBuiltins$ObjectBindPropertiesNode