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| 1 | /* | ||
| 2 | * Copyright (c) 1994, 2003, 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 | */ | ||
| 25 | |||
| 26 | package sun.tools.tree; | ||
| 27 | |||
| 28 | import sun.tools.java.*; | ||
| 29 | import sun.tools.asm.Label; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * WARNING: The contents of this source file are not part of any | ||
| 33 | * supported API. Code that depends on them does so at its own risk: | ||
| 34 | * they are subject to change or removal without notice. | ||
| 35 | */ | ||
| 36 | class CodeContext extends Context { | ||
| 37 | Label breakLabel; | ||
| 38 | Label contLabel; | ||
| 39 | |||
| 40 | /** | ||
| 41 | * Create a new nested context, for a block statement | ||
| 42 | */ | ||
| 43 | CodeContext(Context ctx, Node node) { | ||
| 44 | super(ctx, node); | ||
| 45 | switch (node.op) { | ||
| 46 | case DO: | ||
| 47 | case WHILE: | ||
| 48 | case FOR: | ||
| 49 | case FINALLY: | ||
| 50 | case SYNCHRONIZED: | ||
| 51 | this.breakLabel = new Label(); | ||
| 52 | this.contLabel = new Label(); | ||
| 53 | break; | ||
| 54 | case SWITCH: | ||
| 55 | case TRY: | ||
| 56 | case INLINEMETHOD: | ||
| 57 | case INLINENEWINSTANCE: | ||
| 58 | this.breakLabel = new Label(); | ||
| 59 | break; | ||
| 60 | default: | ||
| 61 | if ((node instanceof Statement) && (((Statement)node).labels != null)) { | ||
| 62 | this.breakLabel = new Label(); | ||
| 63 | } | ||
| 64 | } | ||
| 65 | } | ||
| 66 | } | ||