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annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/call/SLInvokeNode.java @ 21960:a88981c5ce8b

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Initial test for Java Interop: Perform callback to Math.min and Math.max via TruffleObject and Message.createExecute(2).
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Thu, 18 Jun 2015 16:09:38 +0200
parents 9c8c0937da41
children c07e64ecb528
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1 /*
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2 * Copyright (c) 2013, 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
71991b7a0f14 SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
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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.sl.nodes.call;
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24
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25 import com.oracle.truffle.api.*;
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26 import com.oracle.truffle.api.dsl.NodeChild;
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27 import com.oracle.truffle.api.dsl.NodeChildren;
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28 import com.oracle.truffle.api.dsl.Specialization;
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29 import com.oracle.truffle.api.frame.*;
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30 import com.oracle.truffle.api.interop.ForeignAccess;
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31 import com.oracle.truffle.api.interop.Message;
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32 import com.oracle.truffle.api.interop.TruffleObject;
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33 import com.oracle.truffle.api.nodes.*;
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34 import com.oracle.truffle.api.source.*;
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35 import com.oracle.truffle.sl.nodes.*;
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36 import com.oracle.truffle.sl.runtime.*;
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37
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38 /**
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39 * The node for function invocation in SL. Since SL has first class functions, the
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40 * {@link SLFunction target function} can be computed by an arbitrary expression. This node is
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41 * responsible for evaluating this expression, as well as evaluating the {@link #argumentNodes
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42 * arguments}. The actual dispatch is then delegated to a chain of {@link SLDispatchNode} that form
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43 * a polymorphic inline cache.
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44 */
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45 @NodeInfo(shortName = "invoke")
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46 @NodeChildren({@NodeChild(value = "functionNode", type = SLExpressionNode.class)})
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47 public abstract class SLInvokeNode extends SLExpressionNode {
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48 @Children private final SLExpressionNode[] argumentNodes;
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49 @Child private SLDispatchNode dispatchNode;
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50
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51 SLInvokeNode(SourceSection src, SLExpressionNode[] argumentNodes) {
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52 super(src);
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53 this.argumentNodes = argumentNodes;
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54 this.dispatchNode = SLDispatchNodeGen.create();
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55 }
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56
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57 @Specialization
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58 @ExplodeLoop
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59 public Object executeGeneric(VirtualFrame frame, SLFunction function) {
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60 /*
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61 * The number of arguments is constant for one invoke node. During compilation, the loop is
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62 * unrolled and the execute methods of all arguments are inlined. This is triggered by the
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63 * ExplodeLoop annotation on the method. The compiler assertion below illustrates that the
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64 * array length is really constant.
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65 */
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66 CompilerAsserts.compilationConstant(argumentNodes.length);
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67
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68 Object[] argumentValues = new Object[argumentNodes.length];
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69 for (int i = 0; i < argumentNodes.length; i++) {
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70 argumentValues[i] = argumentNodes[i].executeGeneric(frame);
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71 }
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72 return dispatchNode.executeDispatch(frame, function, argumentValues);
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73 }
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74
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75 @Child private Node crossLanguageCall;
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76
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77 @Specialization
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78 @ExplodeLoop
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79 protected Object executeGeneric(VirtualFrame frame, TruffleObject function) {
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80 /*
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81 * The number of arguments is constant for one invoke node. During compilation, the loop is
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82 * unrolled and the execute methods of all arguments are inlined. This is triggered by the
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83 * ExplodeLoop annotation on the method. The compiler assertion below illustrates that the
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84 * array length is really constant.
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85 */
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86 CompilerAsserts.compilationConstant(argumentNodes.length);
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87
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88 Object[] argumentValues = new Object[argumentNodes.length];
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89 for (int i = 0; i < argumentNodes.length; i++) {
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90 argumentValues[i] = argumentNodes[i].executeGeneric(frame);
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91 }
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92 if (crossLanguageCall == null) {
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93 crossLanguageCall = insert(Message.createExecute(argumentValues.length).createNode());
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94 }
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95 return ForeignAccess.execute(crossLanguageCall, frame, function, argumentValues);
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96 }
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97 }