https://www.graalvm.org/ 
class com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl implements com.oracle.truffle.js.nodes.function.BuiltinNodeFactory
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl
  super_class: java.lang.Object
{
  private final boolean construct;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean newTarget;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  final com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum this$1;
    descriptor: Lcom/oracle/truffle/js/builtins/JSBuiltinsContainer$SwitchEnum;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final java.lang.Enum val$builtinEnum;
    descriptor: Ljava/lang/Enum;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum, boolean, boolean, java.lang.Enum);
    descriptor: (Lcom/oracle/truffle/js/builtins/JSBuiltinsContainer$SwitchEnum;ZZLjava/lang/Enum;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=5, args_size=5
        start local 0 // com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl this
        start local 2 // boolean construct
        start local 3 // boolean newTarget
         0: .line 168
            aload 0 /* this */
            aload 1
            putfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.this$1:Lcom/oracle/truffle/js/builtins/JSBuiltinsContainer$SwitchEnum;
            aload 0 /* this */
            aload 4
            putfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.val$builtinEnum:Ljava/lang/Enum;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 169
            aload 0 /* this */
            iload 2 /* construct */
            putfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.construct:Z
         2: .line 170
            aload 0 /* this */
            iload 3 /* newTarget */
            putfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.newTarget:Z
         3: .line 171
            return
        end local 3 // boolean newTarget
        end local 2 // boolean construct
        end local 0 // com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lcom/oracle/truffle/js/builtins/JSBuiltinsContainer$SwitchEnum$1FactoryImpl;
            0    4     2  construct  Z
            0    4     3  newTarget  Z
    MethodParameters:
                 Name  Flags
      this$0           final
      construct        
      newTarget        
      val$builtinEnum  final

  public java.lang.Object createObject(com.oracle.truffle.js.runtime.JSContext, com.oracle.truffle.js.nodes.function.JSBuiltin);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/function/JSBuiltin;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl this
        start local 1 // com.oracle.truffle.js.runtime.JSContext context
        start local 2 // com.oracle.truffle.js.nodes.function.JSBuiltin builtin
         0: .line 175
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.this$1:Lcom/oracle/truffle/js/builtins/JSBuiltinsContainer$SwitchEnum;
            aload 1 /* context */
            aload 2 /* builtin */
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.construct:Z
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.newTarget:Z
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl.val$builtinEnum:Ljava/lang/Enum;
            invokevirtual com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum.createNode:(Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/function/JSBuiltin;ZZLjava/lang/Enum;)Ljava/lang/Object;
            areturn
        end local 2 // com.oracle.truffle.js.nodes.function.JSBuiltin builtin
        end local 1 // com.oracle.truffle.js.runtime.JSContext context
        end local 0 // com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lcom/oracle/truffle/js/builtins/JSBuiltinsContainer$SwitchEnum$1FactoryImpl;
            0    1     1  context  Lcom/oracle/truffle/js/runtime/JSContext;
            0    1     2  builtin  Lcom/oracle/truffle/js/nodes/function/JSBuiltin;
    MethodParameters:
         Name  Flags
      context  
      builtin  
}
SourceFile: "JSBuiltinsContainer.java"
EnclosingMethod: com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum.loadBuiltin:(Ljava/lang/Enum;)V
NestHost: com.oracle.truffle.js.builtins.JSBuiltinsContainer
InnerClasses:
  public SwitchEnum = com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum of com.oracle.truffle.js.builtins.JSBuiltinsContainer
  FactoryImpl = com.oracle.truffle.js.builtins.JSBuiltinsContainer$SwitchEnum$1FactoryImpl