https://www.graalvm.org/ 
final class com.oracle.truffle.js.runtime.interop.ScopeMembers$Key implements com.oracle.truffle.api.interop.TruffleObject
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.js.runtime.interop.ScopeMembers$Key
  super_class: java.lang.Object
{
  private final java.lang.String name;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.api.nodes.Node blockOrRoot;
    descriptor: Lcom/oracle/truffle/api/nodes/Node;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.api.frame.FrameSlot slot;
    descriptor: Lcom/oracle/truffle/api/frame/FrameSlot;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private com.oracle.truffle.api.source.SourceSection sourceLocation;
    descriptor: Lcom/oracle/truffle/api/source/SourceSection;
    flags: (0x0002) ACC_PRIVATE

  void <init>(java.lang.String, com.oracle.truffle.api.nodes.Node, com.oracle.truffle.api.frame.FrameSlot);
    descriptor: (Ljava/lang/String;Lcom/oracle/truffle/api/nodes/Node;Lcom/oracle/truffle/api/frame/FrameSlot;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
        start local 1 // java.lang.String name
        start local 2 // com.oracle.truffle.api.nodes.Node blockOrRoot
        start local 3 // com.oracle.truffle.api.frame.FrameSlot slot
         0: .line 195
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 196
            aload 0 /* this */
            aload 1 /* name */
            putfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.name:Ljava/lang/String;
         2: .line 197
            aload 0 /* this */
            aload 3 /* slot */
            putfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.slot:Lcom/oracle/truffle/api/frame/FrameSlot;
         3: .line 198
            aload 0 /* this */
            aload 2 /* blockOrRoot */
            putfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.blockOrRoot:Lcom/oracle/truffle/api/nodes/Node;
         4: .line 199
            return
        end local 3 // com.oracle.truffle.api.frame.FrameSlot slot
        end local 2 // com.oracle.truffle.api.nodes.Node blockOrRoot
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;
            0    5     1         name  Ljava/lang/String;
            0    5     2  blockOrRoot  Lcom/oracle/truffle/api/nodes/Node;
            0    5     3         slot  Lcom/oracle/truffle/api/frame/FrameSlot;
    MethodParameters:
             Name  Flags
      name         
      blockOrRoot  
      slot         

  boolean isString();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 204
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.String asString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 209
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.name:Ljava/lang/String;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 214
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.asString:()Ljava/lang/String;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;

  boolean hasSourceLocation();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 220
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.getOrFindSourceLocation:()Lcom/oracle/truffle/api/source/SourceSection;
            invokevirtual com.oracle.truffle.api.source.SourceSection.isAvailable:()Z
            ireturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()

  com.oracle.truffle.api.source.SourceSection getSourceLocation();
    descriptor: ()Lcom/oracle/truffle/api/source/SourceSection;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 226
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.hasSourceLocation:()Z
            ifne 2
         1: .line 227
            invokestatic com.oracle.truffle.api.interop.UnsupportedMessageException.create:()Lcom/oracle/truffle/api/interop/UnsupportedMessageException;
            athrow
         2: .line 229
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.sourceLocation:Lcom/oracle/truffle/api/source/SourceSection;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnsupportedMessageException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()

  private com.oracle.truffle.api.source.SourceSection getOrFindSourceLocation();
    descriptor: ()Lcom/oracle/truffle/api/source/SourceSection;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 233
            invokestatic com.oracle.truffle.api.CompilerAsserts.neverPartOfCompilation:()V
         1: .line 234
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.sourceLocation:Lcom/oracle/truffle/api/source/SourceSection;
            ifnonnull 3
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.blockOrRoot:Lcom/oracle/truffle/api/nodes/Node;
            ifnull 3
         2: .line 235
            aload 0 /* this */
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.findSourceLocation:()Lcom/oracle/truffle/api/source/SourceSection;
            putfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.sourceLocation:Lcom/oracle/truffle/api/source/SourceSection;
         3: .line 237
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.sourceLocation:Lcom/oracle/truffle/api/source/SourceSection;
            ifnonnull 5
         4: .line 239
            aload 0 /* this */
            invokestatic com.oracle.truffle.js.nodes.function.JSBuiltin.createSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            putfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.sourceLocation:Lcom/oracle/truffle/api/source/SourceSection;
         5: .line 241
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.sourceLocation:Lcom/oracle/truffle/api/source/SourceSection;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;

  private com.oracle.truffle.api.source.SourceSection findSourceLocation();
    descriptor: ()Lcom/oracle/truffle/api/source/SourceSection;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
         0: .line 245
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.slot:Lcom/oracle/truffle/api/frame/FrameSlot;
            ifnull 5
         1: .line 270
            new com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder
            dup
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder.<init>:(Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;)V
            astore 1 /* finder */
        start local 1 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder finder
         2: .line 271
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.blockOrRoot:Lcom/oracle/truffle/api/nodes/Node;
            aload 1 /* finder */
            invokevirtual com.oracle.truffle.api.nodes.Node.accept:(Lcom/oracle/truffle/api/nodes/NodeVisitor;)V
         3: .line 272
            aload 1 /* finder */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder.found:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            ifnull 5
         4: .line 273
            aload 1 /* finder */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder.found:Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            invokevirtual com.oracle.truffle.js.nodes.JavaScriptNode.getSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            areturn
        end local 1 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder finder
         5: .line 276
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.interop.ScopeMembers$Key.blockOrRoot:Lcom/oracle/truffle/api/nodes/Node;
            invokevirtual com.oracle.truffle.api.nodes.Node.getEncapsulatingSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.interop.ScopeMembers$Key this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key;
            2    5     1  finder  Lcom/oracle/truffle/js/runtime/interop/ScopeMembers$Key$1DeclarationFinder;
}
SourceFile: "ScopeMembers.java"
NestHost: com.oracle.truffle.js.runtime.interop.ScopeMembers
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  final Key = com.oracle.truffle.js.runtime.interop.ScopeMembers$Key of com.oracle.truffle.js.runtime.interop.ScopeMembers
  DeclarationFinder = com.oracle.truffle.js.runtime.interop.ScopeMembers$Key$1DeclarationFinder
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/interop/InteropLibrary;)