Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultVirtualFrame.java @ 7317:40be0ff5a3ce
Include probability when calculating block weight.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 09 Jan 2013 21:41:37 +0100 |
parents | dc3e86fd3be1 |
children | 5e3d1a68664e |
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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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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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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6 * under the terms of the GNU General Public License version 2 only, as |
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.
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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 |
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>
parents:
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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>
parents:
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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 |
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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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.impl; |
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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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parents:
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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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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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26 |
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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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27 import com.oracle.truffle.api.*; |
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28 import com.oracle.truffle.api.frame.*; |
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29 |
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30 public final class DefaultVirtualFrame implements VirtualFrame { |
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31 |
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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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32 private static final Object UNDEFINED_OBJECT = null; |
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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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33 private static final Boolean UNDEFINED_BOOLEAN = false; |
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34 private static final Integer UNDEFINED_INTEGER = 0; |
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35 private static final Float UNDEFINED_FLOAT = 0.0f; |
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36 private static final Long UNDEFINED_LONG = 0L; |
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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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37 private static final Double UNDEFINED_DOUBLE = 0.0d; |
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38 |
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39 private final FrameDescriptor descriptor; |
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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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40 private final PackedFrame caller; |
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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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41 private final Arguments arguments; |
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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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42 private FrameVersion currentVersion; |
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43 protected Object[] locals; |
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44 protected Class[] tags; |
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45 |
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46 public DefaultVirtualFrame(FrameDescriptor descriptor, PackedFrame caller, Arguments arguments) { |
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47 this.descriptor = descriptor; |
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48 this.caller = caller; |
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49 this.arguments = arguments; |
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50 this.currentVersion = descriptor.getCurrentVersion(); |
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51 this.locals = new Object[descriptor.getSize()]; |
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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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52 // The tags are only needed for assertion checking, so initialize the field only when assertions are enabled |
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53 assert (this.tags = new Class[descriptor.getSize()]) != null; |
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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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54 } |
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55 |
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56 @Override |
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57 public Arguments getArguments() { |
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58 return arguments; |
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59 } |
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60 |
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61 @Override |
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62 public PackedFrame getCaller() { |
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63 return caller; |
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64 } |
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65 |
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66 @Override |
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67 public PackedFrame pack() { |
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68 return new DefaultPackedFrame(this); |
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69 } |
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70 |
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71 @Override |
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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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72 public MaterializedFrame materialize() { |
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73 return new DefaultMaterializedFrame(this); |
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74 } |
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75 |
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76 @Override |
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77 public Object getObject(FrameSlot slot) { |
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78 return get(slot, Object.class, UNDEFINED_OBJECT); |
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79 } |
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80 |
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81 @Override |
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82 public void setObject(FrameSlot slot, Object value) { |
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83 set(slot, Object.class, value); |
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84 } |
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85 |
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86 @Override |
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87 public boolean getBoolean(FrameSlot slot) { |
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88 return (Boolean) get(slot, Float.class, UNDEFINED_BOOLEAN); |
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89 } |
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90 |
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91 @Override |
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92 public void setBoolean(FrameSlot slot, boolean value) { |
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93 set(slot, Float.class, value); |
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94 } |
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95 |
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96 @Override |
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97 public int getInt(FrameSlot slot) { |
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98 return (Integer) get(slot, Integer.class, UNDEFINED_INTEGER); |
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99 } |
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100 |
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101 @Override |
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102 public void setInt(FrameSlot slot, int value) { |
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103 set(slot, Integer.class, value); |
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104 } |
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105 |
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106 @Override |
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107 public long getLong(FrameSlot slot) { |
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108 return (Long) get(slot, Long.class, UNDEFINED_LONG); |
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109 } |
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110 |
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111 @Override |
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112 public void setLong(FrameSlot slot, long value) { |
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113 set(slot, Long.class, value); |
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114 } |
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115 |
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116 @Override |
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117 public float getFloat(FrameSlot slot) { |
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118 return (Float) get(slot, Float.class, UNDEFINED_FLOAT); |
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119 } |
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120 |
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121 @Override |
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122 public void setFloat(FrameSlot slot, float value) { |
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123 set(slot, Float.class, value); |
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124 } |
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125 |
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126 @Override |
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127 public double getDouble(FrameSlot slot) { |
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128 return (Double) get(slot, Double.class, UNDEFINED_DOUBLE); |
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129 } |
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130 |
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131 @Override |
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132 public void setDouble(FrameSlot slot, double value) { |
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133 set(slot, Double.class, value); |
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134 } |
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135 |
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136 private Object get(FrameSlot slot, Class< ? > accessType, Object defaultValue) { |
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137 Object value = locals[slot.getIndex()]; |
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138 assert verifyGet(slot, accessType, value); |
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139 if (value == null) { |
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140 return defaultValue; |
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141 } else { |
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142 return value; |
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143 } |
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144 } |
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145 |
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146 private boolean verifyGet(FrameSlot slot, Class< ? > accessType, Object value) { |
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147 assert descriptor.getSlots().get(slot.getIndex()) == slot; |
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148 Class< ? > tag = tags[slot.getIndex()]; |
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149 if (value == null) { |
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150 assert tag == null || tag == Object.class; |
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151 } else { |
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152 assert tag == accessType : "Local variable " + slot + " was written with set" + tag.getSimpleName() + ", but is read with get" + accessType.getSimpleName(); |
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153 } |
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154 return true; |
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155 } |
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156 |
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157 private void set(FrameSlot slot, Class< ? > accessType, Object value) { |
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158 assert verifySet(slot, accessType, value); |
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159 locals[slot.getIndex()] = value; |
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160 } |
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161 |
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162 private boolean verifySet(FrameSlot slot, Class< ? > accessType, Object value) { |
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163 assert descriptor.getSlots().get(slot.getIndex()) == slot; |
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164 tags[slot.getIndex()] = accessType; |
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165 assert accessType.isAssignableFrom(slot.getType()) : "Local variable " + slot + ": " + accessType + " is not assignable from " + slot.getType(); |
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166 if (value == null) { |
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167 assert accessType == Object.class; |
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168 } else { |
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169 assert slot.getType().isAssignableFrom(value.getClass()) : "Local variable " + slot + ": " + slot.getType() + " is not assignable from " + value.getClass(); |
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170 } |
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171 return true; |
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172 } |
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173 |
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174 @Override |
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175 public void updateToLatestVersion() { |
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176 if (currentVersion.getNext() != null) { |
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177 doUpdateToLatestVersion(); |
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178 } |
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179 } |
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180 |
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181 private void doUpdateToLatestVersion() { |
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182 FrameVersion version = currentVersion; |
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183 while (version.getNext() != null) { |
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184 version = version.getNext(); |
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185 if (version instanceof FrameVersion.TypeChange) { |
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186 ((FrameVersion.TypeChange) version).applyTransformation(this); |
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187 } else if (version instanceof FrameVersion.Resize) { |
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188 int newSize = ((FrameVersion.Resize) version).getNewSize(); |
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189 locals = Arrays.copyOf(locals, newSize); |
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190 } |
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191 } |
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192 currentVersion = version; |
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193 } |
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194 } |