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

Tue, 31 Mar 2009 11:07:55 -0700

author
jjg
date
Tue, 31 Mar 2009 11:07:55 -0700
changeset 256
89f67512b635
parent 1
9a66ca7c79fa
child 554
9d9f26857129
permissions
-rw-r--r--

6817950: refactor ClassReader to improve attribute handling
Reviewed-by: mcimadamore

duke@1 1 /*
duke@1 2 * Copyright 2003-2005 Sun Microsystems, Inc. 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
duke@1 7 * published by the Free Software Foundation. Sun designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
duke@1 9 * by Sun 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 *
duke@1 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@1 22 * CA 95054 USA or visit www.sun.com if you need additional information or
duke@1 23 * have any 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
duke@1 30
duke@1 31 /** These pseudo-types appear in the generated verifier tables to
duke@1 32 * indicate objects that have been allocated but not yet constructed.
duke@1 33 *
duke@1 34 * <p><b>This is NOT part of any API supported by Sun Microsystems. If
duke@1 35 * you write code that depends on this, you do so at your own risk.
duke@1 36 * This code and its internal interfaces are subject to change or
duke@1 37 * deletion without notice.</b>
duke@1 38 */
duke@1 39 class UninitializedType extends Type.DelegatedType {
duke@1 40 public static final int UNINITIALIZED_THIS = TypeTags.TypeTagCount;
duke@1 41 public static final int UNINITIALIZED_OBJECT = UNINITIALIZED_THIS + 1;
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
duke@1 52 private UninitializedType(int 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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