https://www.graalvm.org/ 
public abstract class com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode extends com.oracle.truffle.js.nodes.JavaScriptBaseNode
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptBaseNode
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode this
         0: .line 72
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptBaseNode.<init>:()V
            return
        end local 0 // com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/cast/JSToBigIntNode$JSToBigIntInnerConversionNode;

  public static com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode create();
    descriptor: ()Lcom/oracle/truffle/js/nodes/cast/JSToBigIntNode$JSToBigIntInnerConversionNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 75
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tJSToBigIntInnerConversionNodeGen cannot be resolved\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public abstract java.lang.Object execute(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      value  

  public final com.oracle.truffle.js.runtime.BigInt executeBigInteger(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode this
        start local 1 // java.lang.Object value
         0: .line 81
            aload 0 /* this */
            aload 1 /* value */
            invokevirtual com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode.execute:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.oracle.truffle.js.runtime.BigInt
            areturn
        end local 1 // java.lang.Object value
        end local 0 // com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/js/nodes/cast/JSToBigIntNode$JSToBigIntInnerConversionNode;
            0    1     1  value  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      value  

  protected static com.oracle.truffle.js.runtime.BigInt doBoolean(boolean);
    descriptor: (Z)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // boolean value
         0: .line 86
            iload 0 /* value */
            ifeq 1
            getstatic com.oracle.truffle.js.runtime.BigInt.ONE:Lcom/oracle/truffle/js/runtime/BigInt;
            goto 2
      StackMap locals:
      StackMap stack:
         1: getstatic com.oracle.truffle.js.runtime.BigInt.ZERO:Lcom/oracle/truffle/js/runtime/BigInt;
      StackMap locals:
      StackMap stack: com.oracle.truffle.js.runtime.BigInt
         2: areturn
        end local 0 // boolean value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0  value  Z
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
    MethodParameters:
       Name  Flags
      value  

  protected static com.oracle.truffle.js.runtime.BigInt doBigInt(com.oracle.truffle.js.runtime.BigInt);
    descriptor: (Lcom/oracle/truffle/js/runtime/BigInt;)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.BigInt value
         0: .line 91
            aload 0 /* value */
            areturn
        end local 0 // com.oracle.truffle.js.runtime.BigInt value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  value  Lcom/oracle/truffle/js/runtime/BigInt;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
    MethodParameters:
       Name  Flags
      value  

  protected static com.oracle.truffle.js.runtime.BigInt doDouble(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.Object value
         0: .line 96
            getstatic com.oracle.truffle.js.runtime.JSErrorType.TypeError:Lcom/oracle/truffle/js/runtime/JSErrorType;
            aload 0 /* value */
            invokestatic com.oracle.truffle.js.runtime.Errors.createErrorCanNotConvertToBigInt:(Lcom/oracle/truffle/js/runtime/JSErrorType;Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/JSException;
            athrow
        end local 0 // java.lang.Object value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  value  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization(guards = {"isNumber(value)"})
    MethodParameters:
       Name  Flags
      value  

  protected static com.oracle.truffle.js.runtime.BigInt doSymbol(com.oracle.truffle.js.runtime.Symbol);
    descriptor: (Lcom/oracle/truffle/js/runtime/Symbol;)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.Symbol value
         0: .line 101
            getstatic com.oracle.truffle.js.runtime.JSErrorType.TypeError:Lcom/oracle/truffle/js/runtime/JSErrorType;
            aload 0 /* value */
            invokestatic com.oracle.truffle.js.runtime.Errors.createErrorCanNotConvertToBigInt:(Lcom/oracle/truffle/js/runtime/JSErrorType;Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/JSException;
            athrow
        end local 0 // com.oracle.truffle.js.runtime.Symbol value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  value  Lcom/oracle/truffle/js/runtime/Symbol;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
    MethodParameters:
       Name  Flags
      value  

  protected static com.oracle.truffle.js.runtime.BigInt doNullOrUndefined(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.Object value
         0: .line 106
            getstatic com.oracle.truffle.js.runtime.JSErrorType.TypeError:Lcom/oracle/truffle/js/runtime/JSErrorType;
            aload 0 /* value */
            invokestatic com.oracle.truffle.js.runtime.Errors.createErrorCanNotConvertToBigInt:(Lcom/oracle/truffle/js/runtime/JSErrorType;Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/JSException;
            athrow
        end local 0 // java.lang.Object value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  value  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization(guards = {"isNullOrUndefined(value)"})
    MethodParameters:
       Name  Flags
      value  

  protected static com.oracle.truffle.js.runtime.BigInt doString(java.lang.String);
    descriptor: (Ljava/lang/String;)Lcom/oracle/truffle/js/runtime/BigInt;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.String value
         0: .line 112
            aload 0 /* value */
            invokestatic com.oracle.truffle.js.runtime.BigInt.valueOf:(Ljava/lang/String;)Lcom/oracle/truffle/js/runtime/BigInt;
         1: areturn
         2: .line 113
      StackMap locals:
      StackMap stack: java.lang.NumberFormatException
            pop
         3: .line 114
            getstatic com.oracle.truffle.js.runtime.JSErrorType.SyntaxError:Lcom/oracle/truffle/js/runtime/JSErrorType;
            aload 0 /* value */
            invokestatic com.oracle.truffle.js.runtime.Errors.createErrorCanNotConvertToBigInt:(Lcom/oracle/truffle/js/runtime/JSErrorType;Ljava/lang/Object;)Lcom/oracle/truffle/js/runtime/JSException;
            athrow
        end local 0 // java.lang.String value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0  value  Ljava/lang/String;
      Exception table:
        from    to  target  type
           0     1       2  Class java.lang.NumberFormatException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
    MethodParameters:
       Name  Flags
      value  
}
SourceFile: "JSToBigIntNode.java"
NestHost: com.oracle.truffle.js.nodes.cast.JSToBigIntNode
InnerClasses:
  public abstract JSToBigIntInnerConversionNode = com.oracle.truffle.js.nodes.cast.JSToBigIntNode$JSToBigIntInnerConversionNode of com.oracle.truffle.js.nodes.cast.JSToBigIntNode