Mercurial > hg > truffle
annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Value.java @ 18163:c88ab4f1f04a
re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 24 Oct 2014 16:18:10 +0200 |
parents | 9a804ec7f707 |
children | ef357effbda7 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.api.meta; |
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24 |
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25 /** |
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26 * Abstract base class for values manipulated by the compiler. All values have a {@linkplain Kind |
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27 * kind} and are immutable. |
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28 */ |
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29 public interface Value extends KindProvider { |
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30 |
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31 @SuppressWarnings("serial") AllocatableValue ILLEGAL = new AllocatableValue(LIRKind.Illegal) { |
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32 |
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33 @Override |
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34 public String toString() { |
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35 return "-"; |
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36 } |
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37 }; |
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38 |
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39 /** |
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40 * Returns a String representation of the kind, which should be the end of all |
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41 * {@link #toString()} implementation of subclasses. |
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42 */ |
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43 default String getKindSuffix() { |
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44 return "|" + getKind().getTypeChar(); |
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45 } |
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46 |
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47 /** |
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48 * Returns the kind of this value. |
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49 */ |
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50 Kind getKind(); |
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51 |
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52 LIRKind getLIRKind(); |
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53 |
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54 /** |
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55 * Returns the platform specific kind used to store this value. |
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56 */ |
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57 PlatformKind getPlatformKind(); |
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58 |
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59 /** |
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60 * Checks if this value is identical to {@code other}. |
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61 * |
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62 * Warning: Use with caution! Usually equivalence {@link #equals(Object)} is sufficient and |
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63 * should be used. |
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64 */ |
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65 @ExcludeFromIdentityComparisonVerification |
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66 default boolean identityEquals(Value other) { |
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67 return this == other; |
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68 } |
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69 } |