1 /*
 2  * Copyright (c) 2024, 2026, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 import jdk.incubator.code.CodeType;
25 import jdk.incubator.code.extern.ExternalizedCodeType;
26 
27 import java.util.List;
28 
29 sealed interface UnresolvedType extends CodeType {
30 
31     static Ref unresolvedRef() {
32         return new Ref();
33     }
34 
35     static Int unresolvedInt() {
36         return new Int();
37     }
38 
39     static final class Ref implements UnresolvedType {
40         private static final ExternalizedCodeType UNRESOLVED_REF = new ExternalizedCodeType("?REF", List.of());
41 
42         @Override
43         public ExternalizedCodeType externalize() {
44             return UNRESOLVED_REF;
45         }
46     }
47 
48     static final class Int implements  UnresolvedType {
49         private static final ExternalizedCodeType UNRESOLVED_INT = new ExternalizedCodeType("?INT", List.of());
50 
51         @Override
52         public ExternalizedCodeType externalize() {
53             return UNRESOLVED_INT;
54         }
55     }
56 }