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annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLFunctionForeignAccess.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 597953a8e6f0
children c1f804ce6cad
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * Copyright (c) 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 * The Universal Permissive License (UPL), Version 1.0
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6 *
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7 * Subject to the condition set forth below, permission is hereby granted to any
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8 * person obtaining a copy of this software, associated documentation and/or
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9 * data (collectively the "Software"), free of charge and under any and all
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10 * copyright rights in the Software, and any and all patent rights owned or
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11 * freely licensable by each licensor hereunder covering either (i) the
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12 * unmodified Software as contributed to or provided by such licensor, or (ii)
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13 * the Larger Works (as defined below), to deal in both
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14 *
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15 * (a) the Software, and
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16 *
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17 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
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18 * one is included with the Software each a "Larger Work" to which the Software
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19 * is contributed by such licensors),
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20 *
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21 * without restriction, including without limitation the rights to copy, create
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22 * derivative works of, display, perform, and distribute the Software and make,
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23 * use, sell, offer for sale, import, export, have made, and have sold the
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24 * Software and the Larger Work(s), and to sublicense the foregoing rights on
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25 * either these or other terms.
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26 *
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27 * This license is subject to the following condition:
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28 *
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29 * The above copyright notice and either this complete permission notice or at a
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30 * minimum a reference to the UPL must be included in all copies or substantial
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31 * portions of the Software.
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32 *
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33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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36 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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39 * SOFTWARE.
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40 */
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41 package com.oracle.truffle.sl.runtime;
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42
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43 import com.oracle.truffle.api.CallTarget;
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44 import com.oracle.truffle.api.Truffle;
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45 import com.oracle.truffle.api.frame.VirtualFrame;
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46 import com.oracle.truffle.api.interop.ForeignAccess;
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47 import com.oracle.truffle.api.interop.Message;
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48 import com.oracle.truffle.api.interop.TruffleObject;
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49 import com.oracle.truffle.api.nodes.RootNode;
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50 import com.oracle.truffle.sl.SLLanguage;
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51 import com.oracle.truffle.sl.nodes.call.SLDispatchNode;
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52 import com.oracle.truffle.sl.nodes.call.SLDispatchNodeGen;
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53 import static com.oracle.truffle.sl.runtime.SLContext.fromForeignValue;
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54 import java.util.List;
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55
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56 /**
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57 * Implementation of foreign access for {@link SLFunction}.
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58 */
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59 final class SLFunctionForeignAccess implements ForeignAccess.Factory {
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60 public static ForeignAccess create() {
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61 return ForeignAccess.create(new SLFunctionForeignAccess());
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62 }
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63
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64 private SLFunctionForeignAccess() {
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65 }
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66
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67 @Override
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68 public boolean canHandle(TruffleObject o) {
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69 return o instanceof SLFunction;
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70 }
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72 @Override
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73 public CallTarget accessMessage(Message tree) {
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74 if (Message.createExecute(0).equals(tree)) {
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75 return Truffle.getRuntime().createCallTarget(new SLForeignCallerRootNode());
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76 } else if (Message.IS_NULL.equals(tree)) {
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77 return Truffle.getRuntime().createCallTarget(new SLForeignNullCheckNode());
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78 } else if (Message.IS_EXECUTABLE.equals(tree)) {
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79 return Truffle.getRuntime().createCallTarget(new SLForeignExecutableCheckNode());
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80 } else {
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81 throw new IllegalArgumentException(tree.toString() + " not supported");
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82 }
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83 }
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84
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85 private static class SLForeignCallerRootNode extends RootNode {
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86 @Child private SLDispatchNode dispatch = SLDispatchNodeGen.create();
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87
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88 public SLForeignCallerRootNode() {
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89 super(SLLanguage.class, null, null);
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90 }
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91
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92 @Override
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93 public Object execute(VirtualFrame frame) {
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94 SLFunction function = (SLFunction) ForeignAccess.getReceiver(frame);
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95 // the calling convention of interop passes the receiver of a
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96 // function call (the this object)
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97 // as an implicit 1st argument; we need to ignore this argument for SL
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98 List<Object> args = ForeignAccess.getArguments(frame);
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99 Object[] arr;
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100 if (args.size() > 0 && args.get(0) instanceof SLContext) {
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101 arr = args.subList(1, args.size()).toArray();
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102 } else {
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103 arr = args.toArray();
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104 }
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105 for (int i = 0; i < arr.length; i++) {
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106 arr[i] = fromForeignValue(arr[i]);
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107 }
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108 return dispatch.executeDispatch(frame, function, arr);
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109 }
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110 }
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111
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112 private static class SLForeignNullCheckNode extends RootNode {
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113 public SLForeignNullCheckNode() {
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114 super(SLLanguage.class, null, null);
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115 }
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116
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117 @Override
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118 public Object execute(VirtualFrame frame) {
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119 Object receiver = ForeignAccess.getReceiver(frame);
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120 return SLNull.SINGLETON == receiver;
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121 }
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122 }
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123
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124 private static class SLForeignExecutableCheckNode extends RootNode {
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125 public SLForeignExecutableCheckNode() {
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126 super(SLLanguage.class, null, null);
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127 }
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128
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129 @Override
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130 public Object execute(VirtualFrame frame) {
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131 Object receiver = ForeignAccess.getReceiver(frame);
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132 return receiver instanceof SLFunction;
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133 }
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134 }
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135 }