Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/examples/Interop.java @ 20170:953c813b8e7a
DSL: allow comparison of different integral types.
author | Chris Seaton <chris.seaton@oracle.com> |
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date | Sun, 05 Apr 2015 20:40:52 +0100 |
parents | a79a3e467245 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2015, 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.truffle.api.dsl.test.examples; |
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24 |
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25 import static com.oracle.truffle.api.dsl.test.examples.ExampleNode.*; |
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26 import static org.junit.Assert.*; |
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27 |
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28 import org.junit.*; |
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29 |
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30 import com.oracle.truffle.api.*; |
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31 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary; |
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32 import com.oracle.truffle.api.dsl.*; |
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33 import com.oracle.truffle.api.dsl.test.examples.InteropFactory.UseInteropNodeGen; |
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34 import com.oracle.truffle.api.frame.*; |
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35 import com.oracle.truffle.api.nodes.*; |
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36 |
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37 /** |
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38 * This example aims to illustrate how the {@link Cached} annotation can be used to implement a |
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39 * cache for a simplified language interoperability pattern. |
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40 */ |
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41 public class Interop { |
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42 |
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43 @Test |
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44 public void testInterop() { |
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45 UseInterop node = UseInteropNodeGen.create(createArguments(2)); |
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46 CallTarget target = createTarget(node); |
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47 TruffleObject o1 = new TruffleObject(); |
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48 TruffleObject o2 = new TruffleObject(); |
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49 TruffleObject o3 = new TruffleObject(); |
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50 TruffleObject o4 = new TruffleObject(); |
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51 assertEquals(42, target.call(o1, 42)); |
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52 assertEquals(43, target.call(o2, 43)); |
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53 assertEquals(44, target.call(o3, 44)); |
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54 assertEquals(3, node.cached); |
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55 assertEquals(0, node.generic); |
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56 assertEquals(45, target.call(o4, 45)); // operation gets generic |
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57 assertEquals(42, target.call(o1, 42)); |
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58 assertEquals(43, target.call(o2, 43)); |
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59 assertEquals(44, target.call(o3, 44)); |
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60 assertEquals(3, node.cached); |
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61 assertEquals(4, node.generic); |
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62 } |
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63 |
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64 public static class UseInterop extends ExampleNode { |
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65 |
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66 int cached = 0; |
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67 int generic = 0; |
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68 |
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69 @Specialization(guards = "operation.accept(target)") |
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70 protected Object interopCached(VirtualFrame frame, TruffleObject target, Object value, // |
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71 @Cached("target.createOperation()") TruffleObjectOperation operation) { |
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72 cached++; |
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73 return operation.execute(frame, target, value); |
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74 } |
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75 |
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76 @Specialization(contains = "interopCached") |
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77 protected Object interopGeneric(VirtualFrame frame, TruffleObject target, Object value) { |
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78 generic++; |
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79 return target.createOperation().execute(frame, target, value); |
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80 } |
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81 } |
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82 |
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83 public abstract static class TruffleObjectOperation extends Node { |
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84 |
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85 public abstract boolean accept(TruffleObject object); |
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86 |
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87 public abstract Object execute(VirtualFrame frame, Object target, Object value); |
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88 |
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89 } |
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90 |
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91 public static class TruffleObject { |
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92 |
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93 @TruffleBoundary |
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94 public TruffleObjectOperation createOperation() { |
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95 return new TruffleObjectOperation() { |
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96 @Override |
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97 public Object execute(VirtualFrame frame, Object target, Object value) { |
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98 return value; |
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99 } |
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100 |
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101 @Override |
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102 public boolean accept(TruffleObject object) { |
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103 return TruffleObject.this == object; |
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104 } |
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105 }; |
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106 } |
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107 } |
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108 |
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109 } |