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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultTruffleRuntime.java @ 15064:f675818d9ad0

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new getStackTrace and getCurrentFrame functionality in TruffleRuntime
author Lukas Stadler <lukas.stadler@oracle.com>
date Fri, 11 Apr 2014 11:53:11 +0200
parents 64dcb92ee75a
children 5634b199c4da
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1 /*
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2 * Copyright (c) 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. 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.impl;
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26
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27 import com.oracle.truffle.api.*;
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28 import com.oracle.truffle.api.frame.*;
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29 import com.oracle.truffle.api.nodes.*;
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30
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31 /**
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32 * Default implementation of the Truffle runtime if the virtual machine does not provide a better
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33 * performing alternative.
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34 * <p>
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35 * This is an implementation-specific class. Do not use or instantiate it. Instead, use
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36 * {@link Truffle#getRuntime()} to retrieve the current {@link TruffleRuntime}.
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37 */
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38 public final class DefaultTruffleRuntime implements TruffleRuntime {
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39
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40 public DefaultTruffleRuntime() {
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41 if (Truffle.getRuntime() != null) {
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42 throw new IllegalArgumentException("Cannot instantiate DefaultTruffleRuntime. Use Truffle.getRuntime() instead.");
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43 }
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44 }
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45
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46 @Override
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47 public String getName() {
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48 return "Default Truffle Runtime";
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49 }
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50
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51 @Override
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52 public RootCallTarget createCallTarget(RootNode rootNode) {
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53 return new DefaultCallTarget(rootNode);
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54 }
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55
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56 public CallNode createCallNode(CallTarget target) {
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57 return new DefaultCallNode(target);
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58 }
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59
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60 @Override
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61 public VirtualFrame createVirtualFrame(Object[] arguments, FrameDescriptor frameDescriptor) {
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62 return new DefaultVirtualFrame(frameDescriptor, arguments);
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63 }
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64
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65 @Override
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66 public MaterializedFrame createMaterializedFrame(Object[] arguments) {
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67 return createMaterializedFrame(arguments, new FrameDescriptor());
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68 }
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69
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70 @Override
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71 public MaterializedFrame createMaterializedFrame(Object[] arguments, FrameDescriptor frameDescriptor) {
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72 return new DefaultMaterializedFrame(new DefaultVirtualFrame(frameDescriptor, arguments));
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73 }
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74
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75 @Override
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76 public Assumption createAssumption() {
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77 return createAssumption(null);
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78 }
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79
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80 @Override
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81 public Assumption createAssumption(String name) {
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82 return new DefaultAssumption(name);
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83 }
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84
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85 public Iterable<FrameInstance> getStackTrace() {
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86 // TODO(lstadler) implement this using ThreadLocal
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87 return null;
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88 }
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89
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90 public FrameInstance getCurrentFrame() {
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91 // TODO(lstadler) implement this using ThreadLocal
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92 return null;
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93 }
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a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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