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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.nodes.methods;
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11
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12 import com.oracle.truffle.api.*;
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13 import com.oracle.truffle.api.frame.*;
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14 import com.oracle.truffle.api.nodes.*;
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15 import com.oracle.truffle.ruby.nodes.*;
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16 import com.oracle.truffle.ruby.runtime.*;
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17 import com.oracle.truffle.ruby.runtime.core.*;
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18
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19 @NodeInfo(shortName = "alias")
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20 public class AliasNode extends RubyNode {
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21
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22 @Child protected RubyNode module;
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23 final String newName;
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24 final String oldName;
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25
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26 public AliasNode(RubyContext context, SourceSection sourceSection, RubyNode module, String newName, String oldName) {
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27 super(context, sourceSection);
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28 this.module = adoptChild(module);
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29 this.newName = newName;
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30 this.oldName = oldName;
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31 }
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32
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33 @Override
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34 public void executeVoid(VirtualFrame frame) {
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35 final RubyModule moduleObject = (RubyModule) module.execute(frame);
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36 moduleObject.alias(newName, oldName);
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37 }
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38
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39 @Override
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40 public Object execute(VirtualFrame frame) {
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41 executeVoid(frame);
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42 return NilPlaceholder.INSTANCE;
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43 }
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44
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45 }
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