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comparison graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/NilPlaceholder.java @ 13514:0fbee3eb71f0

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Ruby: import project.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 06 Jan 2014 17:12:09 +0000
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13513:64a23ce736a0 13514:0fbee3eb71f0
1 /*
2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
4 * redistribute it and/or modify it under the terms of the:
5 *
6 * Eclipse Public License version 1.0
7 * GNU General Public License version 2
8 * GNU Lesser General Public License version 2.1
9 */
10 package com.oracle.truffle.ruby.runtime;
11
12 /**
13 * Represents the Ruby {@code Nil} object, but without being a full Ruby object. This allows us to
14 * have a simple values that is {@code nil}, but more readily available than the particular instance
15 * for a context.
16 */
17 public final class NilPlaceholder {
18
19 public static final NilPlaceholder INSTANCE = new NilPlaceholder();
20
21 private NilPlaceholder() {
22 }
23
24 @Override
25 public String toString() {
26 return "";
27 }
28
29 }