Mercurial > jdk8-mips64-public > nashorn / annotate
src/jdk/nashorn/internal/ir/BreakNode.java@544e17632e96 (annotated)
src/jdk/nashorn/internal/ir/BreakNode.java
Tue, 07 May 2013 14:36:57 +0200
- author
- lagergren
- date
- Tue, 07 May 2013 14:36:57 +0200
- changeset 252
- 544e17632e96
- parent 211
- 3a209cbd1d8f
- child 253
- fb1d7ea3e1b6
- permissions
- -rw-r--r--
8013913: Removed Source field from all nodes except FunctionNode in order to save footprint
Reviewed-by: jlaskey, attila
| jlaskey@3 | 1 | /* |
| jlaskey@7 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| jlaskey@3 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| jlaskey@3 | 4 | * |
| jlaskey@3 | 5 | * This code is free software; you can redistribute it and/or modify it |
| jlaskey@3 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| jlaskey@3 | 7 | * published by the Free Software Foundation. Oracle designates this |
| jlaskey@3 | 8 | * particular file as subject to the "Classpath" exception as provided |
| jlaskey@3 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| jlaskey@3 | 10 | * |
| jlaskey@3 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| jlaskey@3 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| jlaskey@3 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| jlaskey@3 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| jlaskey@3 | 15 | * accompanied this code). |
| jlaskey@3 | 16 | * |
| jlaskey@3 | 17 | * You should have received a copy of the GNU General Public License version |
| jlaskey@3 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| jlaskey@3 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| jlaskey@3 | 20 | * |
| jlaskey@3 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| jlaskey@3 | 22 | * or visit www.oracle.com if you need additional information or have any |
| jlaskey@3 | 23 | * questions. |
| jlaskey@3 | 24 | */ |
| jlaskey@3 | 25 | |
| jlaskey@3 | 26 | package jdk.nashorn.internal.ir; |
| jlaskey@3 | 27 | |
| lagergren@211 | 28 | import jdk.nashorn.internal.ir.annotations.Immutable; |
| jlaskey@3 | 29 | import jdk.nashorn.internal.ir.visitor.NodeVisitor; |
| jlaskey@3 | 30 | |
| jlaskey@3 | 31 | /** |
| jlaskey@3 | 32 | * IR representation for {@code break} statements. |
| jlaskey@3 | 33 | */ |
| lagergren@211 | 34 | @Immutable |
| lagergren@211 | 35 | public final class BreakNode extends Node { |
| jlaskey@3 | 36 | |
| lagergren@211 | 37 | private final IdentNode label; |
| lagergren@211 | 38 | |
| lagergren@211 | 39 | /** |
| jlaskey@3 | 40 | * Constructor |
| jlaskey@3 | 41 | * |
| lagergren@211 | 42 | * @param token token |
| lagergren@211 | 43 | * @param finish finish |
| lagergren@211 | 44 | * @param label label for break or null if none |
| jlaskey@3 | 45 | */ |
| lagergren@252 | 46 | public BreakNode(final long token, final int finish, final IdentNode label) { |
| lagergren@252 | 47 | super(token, finish); |
| lagergren@211 | 48 | this.label = label; |
| jlaskey@3 | 49 | } |
| jlaskey@3 | 50 | |
| jlaskey@3 | 51 | @Override |
| lagergren@211 | 52 | public boolean hasGoto() { |
| lagergren@211 | 53 | return true; |
| jlaskey@3 | 54 | } |
| jlaskey@3 | 55 | |
| jlaskey@3 | 56 | /** |
| jlaskey@3 | 57 | * Assist in IR navigation. |
| jlaskey@3 | 58 | * @param visitor IR navigating visitor. |
| jlaskey@3 | 59 | */ |
| jlaskey@3 | 60 | @Override |
| jlaskey@3 | 61 | public Node accept(final NodeVisitor visitor) { |
| lagergren@211 | 62 | if (visitor.enterBreakNode(this)) { |
| attila@144 | 63 | return visitor.leaveBreakNode(this); |
| jlaskey@3 | 64 | } |
| jlaskey@3 | 65 | |
| jlaskey@3 | 66 | return this; |
| jlaskey@3 | 67 | } |
| jlaskey@3 | 68 | |
| jlaskey@3 | 69 | /** |
| lagergren@211 | 70 | * Get the label for this break node |
| lagergren@211 | 71 | * @return label, or null if none |
| jlaskey@3 | 72 | */ |
| lagergren@211 | 73 | public IdentNode getLabel() { |
| lagergren@211 | 74 | return label; |
| jlaskey@3 | 75 | } |
| jlaskey@3 | 76 | |
| jlaskey@3 | 77 | @Override |
| jlaskey@3 | 78 | public void toString(final StringBuilder sb) { |
| jlaskey@3 | 79 | sb.append("break"); |
| jlaskey@3 | 80 | |
| lagergren@211 | 81 | if (label != null) { |
| jlaskey@3 | 82 | sb.append(' '); |
| lagergren@211 | 83 | label.toString(sb); |
| jlaskey@3 | 84 | } |
| jlaskey@3 | 85 | } |
| jlaskey@3 | 86 | } |
