Mercurial > jdk8-mips64-public > langtools / annotate
src/share/classes/com/sun/tools/javac/jvm/UninitializedType.java@9ca8d8713094 (annotated)
src/share/classes/com/sun/tools/javac/jvm/UninitializedType.java
Thu, 12 Oct 2017 19:50:01 +0800
- author
- aoqi
- date
- Thu, 12 Oct 2017 19:50:01 +0800
- changeset 2702
- 9ca8d8713094
- parent 2525
- 2eb010b6cb22
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
| aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
| aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| aoqi@0 | 10 | * |
| aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 15 | * accompanied this code). |
| aoqi@0 | 16 | * |
| aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 20 | * |
| aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 23 | * questions. |
| aoqi@0 | 24 | */ |
| aoqi@0 | 25 | |
| aoqi@0 | 26 | package com.sun.tools.javac.jvm; |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | import com.sun.tools.javac.code.*; |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | import static com.sun.tools.javac.code.TypeTag.UNINITIALIZED_OBJECT; |
| aoqi@0 | 31 | import static com.sun.tools.javac.code.TypeTag.UNINITIALIZED_THIS; |
| aoqi@0 | 32 | |
| aoqi@0 | 33 | /** These pseudo-types appear in the generated verifier tables to |
| aoqi@0 | 34 | * indicate objects that have been allocated but not yet constructed. |
| aoqi@0 | 35 | * |
| aoqi@0 | 36 | * <p><b>This is NOT part of any supported API. |
| aoqi@0 | 37 | * If you write code that depends on this, you do so at your own risk. |
| aoqi@0 | 38 | * This code and its internal interfaces are subject to change or |
| aoqi@0 | 39 | * deletion without notice.</b> |
| aoqi@0 | 40 | */ |
| aoqi@0 | 41 | class UninitializedType extends Type.DelegatedType { |
| aoqi@0 | 42 | |
| aoqi@0 | 43 | public static UninitializedType uninitializedThis(Type qtype) { |
| aoqi@0 | 44 | return new UninitializedType(UNINITIALIZED_THIS, qtype, -1); |
| aoqi@0 | 45 | } |
| aoqi@0 | 46 | |
| aoqi@0 | 47 | public static UninitializedType uninitializedObject(Type qtype, int offset) { |
| aoqi@0 | 48 | return new UninitializedType(UNINITIALIZED_OBJECT, qtype, offset); |
| aoqi@0 | 49 | } |
| aoqi@0 | 50 | |
| aoqi@0 | 51 | public final int offset; // PC where allocation took place |
| aoqi@0 | 52 | private UninitializedType(TypeTag tag, Type qtype, int offset) { |
| aoqi@0 | 53 | super(tag, qtype); |
| aoqi@0 | 54 | this.offset = offset; |
| aoqi@0 | 55 | } |
| aoqi@0 | 56 | |
| aoqi@0 | 57 | Type initializedType() { |
| aoqi@0 | 58 | return qtype; |
| aoqi@0 | 59 | } |
| aoqi@0 | 60 | } |
