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annotate truffle/com.oracle.truffle.api.interop/src/com/oracle/truffle/api/interop/impl/SymbolInvokerImpl.java @ 22083:245dc37053f3

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Using just a one RootNode per call and otherwise doing all the conversions in its children. Is it faster?
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Mon, 17 Aug 2015 14:54:11 +0200
parents 78c3d3d8d86e
children 77562c7bc5a6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2014, 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. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api.interop.impl;
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26
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27 import java.io.*;
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28
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29 import com.oracle.truffle.api.*;
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30 import com.oracle.truffle.api.frame.*;
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31 import com.oracle.truffle.api.impl.*;
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32 import com.oracle.truffle.api.interop.ForeignAccess;
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33 import com.oracle.truffle.api.interop.Message;
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34 import com.oracle.truffle.api.interop.TruffleObject;
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35 import com.oracle.truffle.api.nodes.*;
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36
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37 public final class SymbolInvokerImpl extends SymbolInvoker {
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38 static final FrameDescriptor UNUSED_FRAMEDESCRIPTOR = new FrameDescriptor();
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39
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40 @SuppressWarnings("unchecked")
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41 @Override
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42 protected Object invoke(TruffleLanguage<?> lang, Object symbol, Object... arr) throws IOException {
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43 if (symbol instanceof String) {
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44 return symbol;
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45 }
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46 if (symbol instanceof Number) {
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47 return symbol;
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48 }
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49 if (symbol instanceof Boolean) {
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50 return symbol;
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51 }
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52 Class<? extends TruffleLanguage<?>> type = (Class<? extends TruffleLanguage<?>>) lang.getClass();
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53 Node executeMain = Message.createExecute(arr.length).createNode();
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54 CallTarget callTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(type, executeMain, (TruffleObject) symbol, arr));
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55 VirtualFrame frame = Truffle.getRuntime().createVirtualFrame(arr, UNUSED_FRAMEDESCRIPTOR);
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56 return callTarget.call(frame);
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57 }
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58
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59 private static class TemporaryRoot extends RootNode {
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60 @Child private Node foreignAccess;
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61 @Child private ConvertNode convert;
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62 private final TruffleObject function;
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63 private final Object[] args;
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64
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65 public TemporaryRoot(Class<? extends TruffleLanguage<?>> lang, Node foreignAccess, TruffleObject function, Object... args) {
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66 super(lang, null, null);
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67 this.foreignAccess = foreignAccess;
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68 this.convert = new ConvertNode();
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69 this.function = function;
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70 this.args = args;
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71 }
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72
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73 @Override
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74 public Object execute(VirtualFrame frame) {
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75 Object tmp = ForeignAccess.execute(foreignAccess, frame, function, args);
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76 return convert.convert(frame, tmp);
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77 }
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78 }
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79
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80 private static final class ConvertNode extends Node {
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81 @Child private Node isNull;
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82 @Child private Node isBoxed;
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83 @Child private Node unbox;
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84
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85 public ConvertNode() {
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86 this.isNull = Message.IS_NULL.createNode();
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87 this.isBoxed = Message.IS_BOXED.createNode();
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88 this.unbox = Message.UNBOX.createNode();
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89 }
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90
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91 Object convert(VirtualFrame frame, Object obj) {
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92 if (obj instanceof TruffleObject) {
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93 return convert(frame, (TruffleObject) obj);
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94 } else {
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95 return obj;
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96 }
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97 }
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98
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99 private Object convert(VirtualFrame frame, TruffleObject obj) {
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100 Object isBoxedResult;
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101 try {
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102 isBoxedResult = ForeignAccess.execute(isBoxed, frame, obj);
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103 } catch (IllegalArgumentException ex) {
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104 isBoxedResult = false;
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105 }
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106 if (Boolean.TRUE.equals(isBoxedResult)) {
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107 return ForeignAccess.execute(unbox, frame, obj);
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108 } else {
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109 try {
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110 Object isNullResult = ForeignAccess.execute(isNull, frame, obj);
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111 if (Boolean.TRUE.equals(isNullResult)) {
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112 return null;
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113 }
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114 } catch (IllegalArgumentException ex) {
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115 // fallthrough
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116 }
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117 }
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118 return obj;
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119 }
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120 }
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121 }