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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.runtime;
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11
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12 /**
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13 * Represents the Ruby {@code Nil} object, but without being a full Ruby object. This allows us to
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14 * have a simple values that is {@code nil}, but more readily available than the particular instance
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15 * for a context.
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16 */
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17 public final class NilPlaceholder {
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18
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19 public static final NilPlaceholder INSTANCE = new NilPlaceholder();
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20
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21 private NilPlaceholder() {
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22 }
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23
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24 @Override
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25 public String toString() {
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26 return "";
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27 }
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28
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29 }
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