Fri, 14 Jun 2013 16:25:09 +0100
8016569: javac, add new flag for polymorphic method signatures
Reviewed-by: jjg
Contributed-by: maurizio.cimadamore@oracle.com
1 /*
2 * Copyright (c) 2003, 2012, 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
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.javac.jvm;
28 import com.sun.tools.javac.code.*;
30 import static com.sun.tools.javac.code.TypeTag.UNINITIALIZED_OBJECT;
31 import static com.sun.tools.javac.code.TypeTag.UNINITIALIZED_THIS;
33 /** These pseudo-types appear in the generated verifier tables to
34 * indicate objects that have been allocated but not yet constructed.
35 *
36 * <p><b>This is NOT part of any supported API.
37 * If you write code that depends on this, you do so at your own risk.
38 * This code and its internal interfaces are subject to change or
39 * deletion without notice.</b>
40 */
41 class UninitializedType extends Type.DelegatedType {
43 public static UninitializedType uninitializedThis(Type qtype) {
44 return new UninitializedType(UNINITIALIZED_THIS, qtype, -1);
45 }
47 public static UninitializedType uninitializedObject(Type qtype, int offset) {
48 return new UninitializedType(UNINITIALIZED_OBJECT, qtype, offset);
49 }
51 public final int offset; // PC where allocation took place
52 private UninitializedType(TypeTag tag, Type qtype, int offset) {
53 super(tag, qtype);
54 this.offset = offset;
55 }
57 Type initializedType() {
58 return qtype;
59 }
60 }