https://www.graalvm.org/ 
public class com.oracle.truffle.js.nodes.access.RealmNode extends com.oracle.truffle.js.nodes.JavaScriptBaseNode
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.js.nodes.access.RealmNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptBaseNode
{
  private final com.oracle.truffle.js.runtime.JSContext context;
    descriptor: Lcom/oracle/truffle/js/runtime/JSContext;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 50
            ldc Lcom/oracle/truffle/js/nodes/access/RealmNode;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.truffle.js.nodes.access.RealmNode.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  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.access.RealmNode this
        start local 1 // com.oracle.truffle.js.runtime.JSContext context
         0: .line 53
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptBaseNode.<init>:()V
         1: .line 54
            aload 0 /* this */
            aload 1 /* context */
            putfield com.oracle.truffle.js.nodes.access.RealmNode.context:Lcom/oracle/truffle/js/runtime/JSContext;
         2: .line 55
            return
        end local 1 // com.oracle.truffle.js.runtime.JSContext context
        end local 0 // com.oracle.truffle.js.nodes.access.RealmNode this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Lcom/oracle/truffle/js/nodes/access/RealmNode;
            0    3     1  context  Lcom/oracle/truffle/js/runtime/JSContext;
    MethodParameters:
         Name  Flags
      context  

  public static com.oracle.truffle.js.nodes.access.RealmNode create(com.oracle.truffle.js.runtime.JSContext);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;)Lcom/oracle/truffle/js/nodes/access/RealmNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.JSContext context
         0: .line 58
            new com.oracle.truffle.js.nodes.access.RealmNode
            dup
            aload 0 /* context */
            invokespecial com.oracle.truffle.js.nodes.access.RealmNode.<init>:(Lcom/oracle/truffle/js/runtime/JSContext;)V
            areturn
        end local 0 // com.oracle.truffle.js.runtime.JSContext context
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0  context  Lcom/oracle/truffle/js/runtime/JSContext;
    MethodParameters:
         Name  Flags
      context  

  public com.oracle.truffle.js.runtime.JSRealm execute(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)Lcom/oracle/truffle/js/runtime/JSRealm;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.RealmNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 62
            getstatic com.oracle.truffle.js.nodes.access.RealmNode.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.RealmNode.context:Lcom/oracle/truffle/js/runtime/JSContext;
            invokevirtual com.oracle.truffle.js.runtime.JSContext.getRealm:()Lcom/oracle/truffle/js/runtime/JSRealm;
            aload 1 /* frame */
            invokestatic com.oracle.truffle.js.runtime.JSFrameUtil.getFunctionObject:(Lcom/oracle/truffle/api/frame/Frame;)Lcom/oracle/truffle/api/object/DynamicObject;
            invokestatic com.oracle.truffle.js.runtime.builtins.JSFunction.getRealm:(Lcom/oracle/truffle/api/object/DynamicObject;)Lcom/oracle/truffle/js/runtime/JSRealm;
            if_acmpeq 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 63
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.RealmNode.context:Lcom/oracle/truffle/js/runtime/JSContext;
            invokevirtual com.oracle.truffle.js.runtime.JSContext.getRealm:()Lcom/oracle/truffle/js/runtime/JSRealm;
            areturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.js.nodes.access.RealmNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lcom/oracle/truffle/js/nodes/access/RealmNode;
            0    2     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  

  public com.oracle.truffle.js.runtime.JSContext getContext();
    descriptor: ()Lcom/oracle/truffle/js/runtime/JSContext;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.access.RealmNode this
         0: .line 67
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.RealmNode.context:Lcom/oracle/truffle/js/runtime/JSContext;
            areturn
        end local 0 // com.oracle.truffle.js.nodes.access.RealmNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/access/RealmNode;
}
SourceFile: "RealmNode.java"