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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/TruffleRuntime.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 607e33885130
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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;
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26
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27 import com.oracle.truffle.api.frame.*;
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28 import com.oracle.truffle.api.impl.*;
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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 * Interface representing a Truffle runtime object. The runtime is responsible for creating call
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33 * targets and performing optimizations for them.
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34 */
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35 public interface TruffleRuntime {
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36
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37 /**
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38 * Name describing this runtime implementation for debugging purposes.
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39 *
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40 * @return the name as a String
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41 */
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42 String getName();
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43
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44 /**
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45 * Creates a new call target for a given root node.
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46 *
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47 * @param rootNode the root node whose
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48 * {@link RootNode#execute(com.oracle.truffle.api.frame.VirtualFrame)} method
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49 * represents the entry point
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50 * @return the new call target object
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51 */
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52 RootCallTarget createCallTarget(RootNode rootNode);
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53
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54 CallNode createCallNode(CallTarget target);
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55
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56 /**
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57 * Creates a new assumption object that can be checked and invalidated.
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58 *
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59 * @return the newly created assumption object
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60 */
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61 Assumption createAssumption();
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62
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63 /**
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64 * Creates a new assumption object with a given name that can be checked and invalidated.
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65 *
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66 * @param name the name for the new assumption
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67 * @return the newly created assumption object
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68 */
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69 Assumption createAssumption(String name);
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70
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71 /**
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72 * Creates a new virtual frame object that can be used to store values and is potentially
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73 * optimizable by the runtime.
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74 *
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75 * @return the newly created virtual frame object
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76 */
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77 VirtualFrame createVirtualFrame(Object[] arguments, FrameDescriptor frameDescriptor);
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78
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79 /**
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80 * Creates a new materialized frame object that can be used to store values.
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81 *
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82 * @return the newly created materialized frame object
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83 */
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84 MaterializedFrame createMaterializedFrame(Object[] arguments);
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85
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86 /**
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87 * Creates a new materialized frame object with the given frame descriptor that can be used to
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88 * store values.
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89 *
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90 * @param frameDescriptor the frame descriptor describing this frame's values
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91 * @return the newly created materialized frame object
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92 */
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93 MaterializedFrame createMaterializedFrame(Object[] arguments, FrameDescriptor frameDescriptor);
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94
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95 /**
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96 * Accesses the current stack, i.e., the contents of the {@link Frame}s and the associated
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97 * {@link CallTarget}s. For this functionality to work each call needs to go through
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98 * {@link DefaultCallNode#callProxy(MaterializedFrameNotify, CallTarget, VirtualFrame, Object[])}
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99 * instead of calling {@link CallTarget#call(Object[])} directly.
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100 *
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101 * @return a lazy collection of {@link FrameInstance}.
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102 */
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103 Iterable<FrameInstance> getStackTrace();
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104
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105 /**
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106 * Accesses the current frame, i.e., the frame of the closest {@link CallTarget}. It is
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107 * important to note that this {@link FrameInstance} supports only slow path access.
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108 */
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109 FrameInstance getCurrentFrame();
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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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110 }