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annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/NamedLocationIdentity.java @ 11620:60e3fe0fe939

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mxtool: fix eclipseinit to use project suite dir for included suites
author Mick Jordan <mick.jordan@oracle.com>
date Thu, 12 Sep 2013 19:43:05 -0700
parents 06dc2d2324d6
children 70df63b02309
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06dc2d2324d6 pulled LocationIdentity into a top level class and moved it to the api.meta project
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1 /*
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2 * Copyright (c) 2011, 2012, 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 import java.util.*;
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26
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27 /**
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28 * A {@link LocationIdentity} with a name.
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29 */
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30 public class NamedLocationIdentity implements LocationIdentity {
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31
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32 protected final String name;
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33
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34 /**
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35 * Creates a named unique location identity for read and write operations.
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36 *
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37 * @param name the name of the new location identity
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38 */
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39 public NamedLocationIdentity(String name) {
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40 this.name = name;
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41 }
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42
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43 @Override
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44 public String toString() {
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45 return name;
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46 }
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47
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48 /**
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49 * Returns the named location identity for an array of the given element kind. Array accesses of
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50 * the same kind must have the same location identity unless an alias analysis guarantees that
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51 * two distinct arrays are accessed.
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52 */
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53 public static LocationIdentity getArrayLocation(Kind elementKind) {
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54 return ARRAY_LOCATIONS.get(elementKind);
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55 }
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56
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57 private static final EnumMap<Kind, LocationIdentity> ARRAY_LOCATIONS = initArrayLocations();
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58
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59 private static EnumMap<Kind, LocationIdentity> initArrayLocations() {
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60 EnumMap<Kind, LocationIdentity> result = new EnumMap<>(Kind.class);
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61 for (Kind kind : Kind.values()) {
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62 result.put(kind, new NamedLocationIdentity("Array: " + kind.getJavaName()));
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63 }
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64 return result;
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65 }
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66 }