Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameDescriptor.java @ 10843:50f3f3958555
Truffle: remove Node.EMPTY_ARRAY constant
author | Andreas Woess <andreas.woess@jku.at> |
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date | Mon, 22 Jul 2013 16:17:45 +0200 |
parents | 5d91b0b67cba |
children | 494b818b527c |
rev | line source |
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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.
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1 /* |
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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.
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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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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.
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4 * |
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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.
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5 * This code is free software; you can redistribute it and/or modify it |
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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.
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6 * under the terms of the GNU General Public License version 2 only, as |
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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.
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7 * published by the Free Software Foundation. |
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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.
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8 * |
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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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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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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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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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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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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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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12 * version 2 for more details (a copy is included in the LICENSE file that |
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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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13 * accompanied this code). |
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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.
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14 * |
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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.
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15 * You should have received a copy of the GNU General Public License version |
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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.
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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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.
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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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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18 * |
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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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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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.
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20 * or visit www.oracle.com if you need additional information or have any |
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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.
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21 * questions. |
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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.
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22 */ |
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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.
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23 package com.oracle.truffle.api.frame; |
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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.
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24 |
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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.
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25 import java.util.*; |
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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.impl.*; |
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29 |
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30 /** |
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31 * Descriptor of the slots of frame objects. Multiple frame instances are associated with one such |
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32 * descriptor. |
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33 */ |
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34 public final class FrameDescriptor implements Cloneable { |
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35 |
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36 private final FrameTypeConversion typeConversion; |
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37 private final ArrayList<FrameSlotImpl> slots; |
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38 private final HashMap<Object, FrameSlotImpl> identifierToSlotMap; |
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39 private Assumption version; |
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40 |
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41 public FrameDescriptor() { |
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42 this(DefaultFrameTypeConversion.getInstance()); |
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43 } |
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44 |
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45 public FrameDescriptor(FrameTypeConversion typeConversion) { |
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46 this.typeConversion = typeConversion; |
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47 slots = new ArrayList<>(); |
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48 identifierToSlotMap = new HashMap<>(); |
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49 version = createVersion(); |
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50 } |
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51 |
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52 public FrameSlot addFrameSlot(Object identifier) { |
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53 return addFrameSlot(identifier, FrameSlotKind.Illegal); |
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54 } |
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55 |
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56 public FrameSlot addFrameSlot(Object identifier, FrameSlotKind kind) { |
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57 assert !identifierToSlotMap.containsKey(identifier); |
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58 FrameSlotImpl slot = new FrameSlotImpl(this, identifier, slots.size(), kind); |
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59 slots.add(slot); |
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60 identifierToSlotMap.put(identifier, slot); |
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61 updateVersion(); |
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62 return slot; |
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63 } |
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64 |
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65 public FrameSlot findFrameSlot(Object identifier) { |
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66 return identifierToSlotMap.get(identifier); |
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67 } |
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68 |
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69 public FrameSlot findOrAddFrameSlot(Object identifier) { |
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70 FrameSlot result = findFrameSlot(identifier); |
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71 if (result != null) { |
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72 return result; |
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73 } |
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74 return addFrameSlot(identifier); |
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75 } |
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76 |
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77 public FrameSlot findOrAddFrameSlot(Object identifier, FrameSlotKind kind) { |
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78 FrameSlot result = findFrameSlot(identifier); |
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79 if (result != null) { |
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80 return result; |
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81 } |
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82 return addFrameSlot(identifier, kind); |
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83 } |
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84 |
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85 public int getSize() { |
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86 return slots.size(); |
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87 } |
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88 |
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89 public List<? extends FrameSlot> getSlots() { |
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90 return Collections.unmodifiableList(slots); |
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91 } |
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92 |
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93 /** |
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94 * (db) to retrieve the list of all the identifiers associated with this frame descriptor. |
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95 * |
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96 * @return the list of all the identifiers in this frame descriptor |
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97 */ |
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98 public Set<Object> getIdentifiers() { |
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99 return Collections.unmodifiableSet(identifierToSlotMap.keySet()); |
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100 } |
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101 |
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102 /** |
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103 * (db): this method is used for creating a clone of the {@link FrameDescriptor} object ready |
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104 * for parallel execution. |
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105 */ |
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106 public FrameDescriptor copy() { |
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107 FrameDescriptor clonedFrameDescriptor = new FrameDescriptor(this.typeConversion); |
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108 for (int i = 0; i < this.getSlots().size(); i++) { |
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109 Object identifier = this.getSlots().get(i).getIdentifier(); |
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110 clonedFrameDescriptor.addFrameSlot(identifier); |
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111 } |
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112 return clonedFrameDescriptor; |
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113 } |
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114 |
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115 public FrameDescriptor shallowCopy() { |
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116 FrameDescriptor clonedFrameDescriptor = new FrameDescriptor(this.typeConversion); |
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117 clonedFrameDescriptor.slots.addAll(slots); |
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118 clonedFrameDescriptor.identifierToSlotMap.putAll(identifierToSlotMap); |
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119 return clonedFrameDescriptor; |
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120 } |
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121 |
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122 void updateVersion() { |
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123 version.invalidate(); |
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124 version = createVersion(); |
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125 } |
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126 |
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127 public Assumption getVersion() { |
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128 return version; |
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129 } |
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130 |
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131 private static Assumption createVersion() { |
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132 return Truffle.getRuntime().createAssumption("frame version"); |
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133 } |
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134 |
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135 public FrameTypeConversion getTypeConversion() { |
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136 return typeConversion; |
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137 } |
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138 } |