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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.control;
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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.dsl.*;
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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 /**
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20 * Represents a Ruby {@code or} or {@code ||} expression.
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21 */
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22 @NodeInfo(shortName = "or")
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23 @NodeChildren({@NodeChild("left"), @NodeChild("right")})
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24 public abstract class OrNode extends RubyNode {
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25
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26 public OrNode(RubyContext context, SourceSection sourceSection) {
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27 super(context, sourceSection);
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28 }
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29
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30 public OrNode(OrNode copy) {
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31 super(copy.getContext(), copy.getSourceSection());
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32 }
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33
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34 @ShortCircuit("right")
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35 public boolean needsRightNode(Object a) {
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36 return !GeneralConversions.toBoolean(a);
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37 }
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38
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39 @ShortCircuit("right")
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40 public boolean needsRightNode(boolean a) {
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41 return !a;
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42 }
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43
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44 @Specialization
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45 public Object doBoolean(boolean a, boolean hasB, Object b) {
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46 return hasB ? b : a;
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47 }
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48
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49 @Generic
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50 public Object doGeneric(Object a, boolean hasB, Object b) {
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51 return hasB ? b : a;
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52 }
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53
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54 }
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