https://www.graalvm.org/ 
public abstract class com.oracle.truffle.js.nodes.cast.JSToRegExpNode 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.JSToRegExpNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptBaseNode
{
  protected final com.oracle.truffle.js.runtime.JSContext context;
    descriptor: Lcom/oracle/truffle/js/runtime/JSContext;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  private com.oracle.truffle.js.nodes.intl.CreateRegExpNode createRegExpNode;
    descriptor: Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  protected void <init>(com.oracle.truffle.js.runtime.JSContext);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
        start local 1 // com.oracle.truffle.js.runtime.JSContext context
         0: .line 60
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptBaseNode.<init>:()V
         1: .line 61
            aload 0 /* this */
            aload 1 /* context */
            putfield com.oracle.truffle.js.nodes.cast.JSToRegExpNode.context:Lcom/oracle/truffle/js/runtime/JSContext;
         2: .line 62
            return
        end local 1 // com.oracle.truffle.js.runtime.JSContext context
        end local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Lcom/oracle/truffle/js/nodes/cast/JSToRegExpNode;
            0    3     1  context  Lcom/oracle/truffle/js/runtime/JSContext;
    MethodParameters:
         Name  Flags
      context  

  public abstract com.oracle.truffle.api.object.DynamicObject execute(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      target  

  public static com.oracle.truffle.js.nodes.cast.JSToRegExpNode create(com.oracle.truffle.js.runtime.JSContext);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;)Lcom/oracle/truffle/js/nodes/cast/JSToRegExpNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
         0: .line 67
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tJSToRegExpNodeGen cannot be resolved\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    MethodParameters:
         Name  Flags
      context  

  protected com.oracle.truffle.api.object.DynamicObject returnRegExp(com.oracle.truffle.api.object.DynamicObject);
    descriptor: (Lcom/oracle/truffle/api/object/DynamicObject;)Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
        start local 1 // com.oracle.truffle.api.object.DynamicObject regExp
         0: .line 72
            aload 1 /* regExp */
            areturn
        end local 1 // com.oracle.truffle.api.object.DynamicObject regExp
        end local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lcom/oracle/truffle/js/nodes/cast/JSToRegExpNode;
            0    1     1  regExp  Lcom/oracle/truffle/api/object/DynamicObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization(guards = {"isJSRegExp(regExp)"})
    MethodParameters:
        Name  Flags
      regExp  

  protected com.oracle.truffle.api.object.DynamicObject createRegExp(java.lang.Object, com.oracle.truffle.js.nodes.cast.JSToStringNode, com.oracle.truffle.js.nodes.CompileRegexNode);
    descriptor: (Ljava/lang/Object;Lcom/oracle/truffle/js/nodes/cast/JSToStringNode;Lcom/oracle/truffle/js/nodes/CompileRegexNode;)Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=6, args_size=4
        start local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
        start local 1 // java.lang.Object patternObj
        start local 2 // com.oracle.truffle.js.nodes.cast.JSToStringNode toStringNode
        start local 3 // com.oracle.truffle.js.nodes.CompileRegexNode compileRegexNode
         0: .line 79
            aload 2 /* toStringNode */
            aload 1 /* patternObj */
            invokevirtual com.oracle.truffle.js.nodes.cast.JSToStringNode.executeString:(Ljava/lang/Object;)Ljava/lang/String;
            astore 4 /* pattern */
        start local 4 // java.lang.String pattern
         1: .line 80
            aload 3 /* compileRegexNode */
            aload 4 /* pattern */
            invokevirtual com.oracle.truffle.js.nodes.CompileRegexNode.compile:(Ljava/lang/String;)Ljava/lang/Object;
            astore 5 /* regex */
        start local 5 // java.lang.Object regex
         2: .line 81
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.nodes.cast.JSToRegExpNode.getCreateRegExpNode:()Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
            aload 5 /* regex */
            invokevirtual com.oracle.truffle.js.nodes.intl.CreateRegExpNode.createRegExp:(Ljava/lang/Object;)Lcom/oracle/truffle/api/object/DynamicObject;
            areturn
        end local 5 // java.lang.Object regex
        end local 4 // java.lang.String pattern
        end local 3 // com.oracle.truffle.js.nodes.CompileRegexNode compileRegexNode
        end local 2 // com.oracle.truffle.js.nodes.cast.JSToStringNode toStringNode
        end local 1 // java.lang.Object patternObj
        end local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    3     0              this  Lcom/oracle/truffle/js/nodes/cast/JSToRegExpNode;
            0    3     1        patternObj  Ljava/lang/Object;
            0    3     2      toStringNode  Lcom/oracle/truffle/js/nodes/cast/JSToStringNode;
            0    3     3  compileRegexNode  Lcom/oracle/truffle/js/nodes/CompileRegexNode;
            1    3     4           pattern  Ljava/lang/String;
            2    3     5             regex  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization(guards = {"!isJSRegExp(patternObj)"})
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.dsl.Cached(value = "createUndefinedToEmpty()")
      2:
        com.oracle.truffle.api.dsl.Cached(value = "create(context)")
    MethodParameters:
                  Name  Flags
      patternObj        
      toStringNode      
      compileRegexNode  

  private com.oracle.truffle.js.nodes.intl.CreateRegExpNode getCreateRegExpNode();
    descriptor: ()Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
         0: .line 85
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.cast.JSToRegExpNode.createRegExpNode:Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
            ifnonnull 3
         1: .line 86
            invokestatic com.oracle.truffle.api.CompilerDirectives.transferToInterpreterAndInvalidate:()V
         2: .line 87
            aload 0 /* this */
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.cast.JSToRegExpNode.context:Lcom/oracle/truffle/js/runtime/JSContext;
            invokestatic com.oracle.truffle.js.nodes.intl.CreateRegExpNode.create:(Lcom/oracle/truffle/js/runtime/JSContext;)Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
            invokevirtual com.oracle.truffle.js.nodes.cast.JSToRegExpNode.insert:(Lcom/oracle/truffle/api/nodes/Node;)Lcom/oracle/truffle/api/nodes/Node;
            checkcast com.oracle.truffle.js.nodes.intl.CreateRegExpNode
            putfield com.oracle.truffle.js.nodes.cast.JSToRegExpNode.createRegExpNode:Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
         3: .line 89
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.cast.JSToRegExpNode.createRegExpNode:Lcom/oracle/truffle/js/nodes/intl/CreateRegExpNode;
            areturn
        end local 0 // com.oracle.truffle.js.nodes.cast.JSToRegExpNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lcom/oracle/truffle/js/nodes/cast/JSToRegExpNode;
}
SourceFile: "JSToRegExpNode.java"
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node