src/share/classes/com/sun/tools/javac/jvm/UninitializedType.java

Sun, 17 Feb 2013 16:44:55 -0500

author
dholmes
date
Sun, 17 Feb 2013 16:44:55 -0500
changeset 1571
af8417e590f4
parent 1374
c002fdee76fd
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Merge

duke@1 1 /*
jjg@1374 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package com.sun.tools.javac.jvm;
duke@1 27
duke@1 28 import com.sun.tools.javac.code.*;
duke@1 29
jjg@1374 30 import static com.sun.tools.javac.code.TypeTag.UNINITIALIZED_OBJECT;
jjg@1374 31 import static com.sun.tools.javac.code.TypeTag.UNINITIALIZED_THIS;
duke@1 32
duke@1 33 /** These pseudo-types appear in the generated verifier tables to
duke@1 34 * indicate objects that have been allocated but not yet constructed.
duke@1 35 *
jjg@581 36 * <p><b>This is NOT part of any supported API.
jjg@581 37 * If you write code that depends on this, you do so at your own risk.
duke@1 38 * This code and its internal interfaces are subject to change or
duke@1 39 * deletion without notice.</b>
duke@1 40 */
duke@1 41 class UninitializedType extends Type.DelegatedType {
duke@1 42
duke@1 43 public static UninitializedType uninitializedThis(Type qtype) {
duke@1 44 return new UninitializedType(UNINITIALIZED_THIS, qtype, -1);
duke@1 45 }
duke@1 46
duke@1 47 public static UninitializedType uninitializedObject(Type qtype, int offset) {
duke@1 48 return new UninitializedType(UNINITIALIZED_OBJECT, qtype, offset);
duke@1 49 }
duke@1 50
duke@1 51 public final int offset; // PC where allocation took place
jjg@1374 52 private UninitializedType(TypeTag tag, Type qtype, int offset) {
duke@1 53 super(tag, qtype);
duke@1 54 this.offset = offset;
duke@1 55 }
duke@1 56
duke@1 57 Type initializedType() {
duke@1 58 return qtype;
duke@1 59 }
duke@1 60 }

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