https://www.graalvm.org/ 
public abstract class com.oracle.truffle.js.nodes.access.DeclareGlobalNode 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.access.DeclareGlobalNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptBaseNode
{
  protected final java.lang.String varName;
    descriptor: Ljava/lang/String;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  private com.oracle.truffle.js.nodes.access.HasPropertyCacheNode hasLexicalBindingNode;
    descriptor: Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  protected final com.oracle.truffle.api.profiles.BranchProfile errorProfile;
    descriptor: Lcom/oracle/truffle/api/profiles/BranchProfile;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  protected void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
        start local 1 // java.lang.String varName
         0: .line 62
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptBaseNode.<init>:()V
         1: .line 60
            aload 0 /* this */
            invokestatic com.oracle.truffle.api.profiles.BranchProfile.create:()Lcom/oracle/truffle/api/profiles/BranchProfile;
            putfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.errorProfile:Lcom/oracle/truffle/api/profiles/BranchProfile;
         2: .line 63
            aload 0 /* this */
            aload 1 /* varName */
            putfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.varName:Ljava/lang/String;
         3: .line 64
            return
        end local 1 // java.lang.String varName
        end local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lcom/oracle/truffle/js/nodes/access/DeclareGlobalNode;
            0    4     1  varName  Ljava/lang/String;
    MethodParameters:
         Name  Flags
      varName  

  public abstract void executeVoid(com.oracle.truffle.api.frame.VirtualFrame, com.oracle.truffle.js.runtime.JSContext, com.oracle.truffle.js.runtime.JSRealm);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/runtime/JSRealm;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
         Name  Flags
      frame    
      context  
      realm    

  public void verify(com.oracle.truffle.js.runtime.JSContext, com.oracle.truffle.js.runtime.JSRealm);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/runtime/JSRealm;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
        start local 1 // com.oracle.truffle.js.runtime.JSContext context
        start local 2 // com.oracle.truffle.js.runtime.JSRealm realm
         0: .line 69
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.hasLexicalBindingNode:Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
            ifnonnull 3
         1: .line 70
            invokestatic com.oracle.truffle.api.CompilerDirectives.transferToInterpreterAndInvalidate:()V
         2: .line 71
            aload 0 /* this */
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.varName:Ljava/lang/String;
            aload 1 /* context */
            iconst_1
            invokestatic com.oracle.truffle.js.nodes.access.HasPropertyCacheNode.create:(Ljava/lang/Object;Lcom/oracle/truffle/js/runtime/JSContext;Z)Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
            invokevirtual com.oracle.truffle.js.nodes.access.DeclareGlobalNode.insert:(Lcom/oracle/truffle/api/nodes/Node;)Lcom/oracle/truffle/api/nodes/Node;
            checkcast com.oracle.truffle.js.nodes.access.HasPropertyCacheNode
            putfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.hasLexicalBindingNode:Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
         3: .line 73
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.hasLexicalBindingNode:Lcom/oracle/truffle/js/nodes/access/HasPropertyCacheNode;
            aload 2 /* realm */
            invokevirtual com.oracle.truffle.js.runtime.JSRealm.getGlobalScope:()Lcom/oracle/truffle/api/object/DynamicObject;
            invokevirtual com.oracle.truffle.js.nodes.access.HasPropertyCacheNode.hasProperty:(Ljava/lang/Object;)Z
            ifeq 6
         4: .line 74
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.errorProfile:Lcom/oracle/truffle/api/profiles/BranchProfile;
            invokevirtual com.oracle.truffle.api.profiles.BranchProfile.enter:()V
         5: .line 75
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.DeclareGlobalNode.varName:Ljava/lang/String;
            aload 0 /* this */
            invokestatic com.oracle.truffle.js.runtime.Errors.createSyntaxErrorVariableAlreadyDeclared:(Ljava/lang/String;Lcom/oracle/truffle/api/nodes/Node;)Lcom/oracle/truffle/js/runtime/JSException;
            athrow
         6: .line 77
      StackMap locals:
      StackMap stack:
            return
        end local 2 // com.oracle.truffle.js.runtime.JSRealm realm
        end local 1 // com.oracle.truffle.js.runtime.JSContext context
        end local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    7     0     this  Lcom/oracle/truffle/js/nodes/access/DeclareGlobalNode;
            0    7     1  context  Lcom/oracle/truffle/js/runtime/JSContext;
            0    7     2    realm  Lcom/oracle/truffle/js/runtime/JSRealm;
    MethodParameters:
         Name  Flags
      context  
      realm    

  public boolean isLexicallyDeclared();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
         0: .line 80
            iconst_0
            ireturn
        end local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/access/DeclareGlobalNode;

  public boolean isGlobalFunctionDeclaration();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
         0: .line 84
            iconst_0
            ireturn
        end local 0 // com.oracle.truffle.js.nodes.access.DeclareGlobalNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/access/DeclareGlobalNode;

  protected abstract com.oracle.truffle.js.nodes.access.DeclareGlobalNode copyUninitialized(java.util.Set<java.lang.Class<? extends com.oracle.truffle.api.instrumentation.Tag>>);
    descriptor: (Ljava/util/Set;)Lcom/oracle/truffle/js/nodes/access/DeclareGlobalNode;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljava/util/Set<Ljava/lang/Class<+Lcom/oracle/truffle/api/instrumentation/Tag;>;>;)Lcom/oracle/truffle/js/nodes/access/DeclareGlobalNode;
    MethodParameters:
                  Name  Flags
      materializedTags  
}
SourceFile: "DeclareGlobalNode.java"
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node
    RuntimeInvisibleAnnotations: 
      com.oracle.truffle.api.dsl.ImportStatic(value = {Lcom/oracle/truffle/js/runtime/builtins/JSGlobal;})