1 /*
 2  * Copyright (c) 2024, 2025, 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.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24  */
25 
26 package jdk.incubator.code.dialect.java.impl;
27 
28 import jdk.incubator.code.dialect.java.FieldRef;
29 
30 import java.lang.invoke.MethodHandle;
31 import java.lang.invoke.MethodHandles;
32 import java.lang.invoke.VarHandle;
33 import java.lang.reflect.Field;
34 
35 import jdk.incubator.code.TypeElement;
36 import jdk.incubator.code.extern.ExternalizedTypeElement;
37 
38 public record FieldRefImpl(TypeElement refType, String name, TypeElement type) implements FieldRef {
39 
40     @Override
41     public Field resolveToField(MethodHandles.Lookup l) throws ReflectiveOperationException {
42         MethodHandle fh = ResolutionHelper.resolveFieldGetter(l, this);
43         return l.revealDirect(fh)
44                 .reflectAs(Field.class, l);
45     }
46 
47     @Override
48     public VarHandle resolveToHandle(MethodHandles.Lookup l) throws ReflectiveOperationException {
49         return ResolutionHelper.resolveFieldHandle(l, this);
50     }
51 
52     @Override
53     public ExternalizedTypeElement externalize() {
54         return JavaTypeUtils.fieldRef(name, refType.externalize(), type.externalize());
55     }
56 
57     @Override
58     public String toString() {
59         return JavaTypeUtils.toExternalRefString(externalize());
60     }
61 }