Mercurial > hg > truffle
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultVirtualFrame.java @ 9321:cd1a1d92b3e3
Frame API: Introduce FrameSlotKind.
author | Andreas Woess <andreas.woess@jku.at> |
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date | Thu, 25 Apr 2013 18:14:08 +0200 |
parents | 8cf939b349dd |
children | e162d9e32830 |
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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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>
parents:
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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). |
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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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 |
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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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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23 package com.oracle.truffle.api.impl; |
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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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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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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28 import 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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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 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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33 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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34 private final Arguments arguments; |
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35 private Object[] locals; |
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36 private byte[] tags; |
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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 |
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38 public DefaultVirtualFrame(FrameDescriptor descriptor, PackedFrame caller, Arguments arguments) { |
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39 this.descriptor = 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 this.caller = 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 this.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 this.locals = new Object[descriptor.getSize()]; |
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43 this.tags = new byte[descriptor.getSize()]; |
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44 } |
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45 |
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46 @Override |
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47 public Arguments getArguments() { |
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48 return arguments; |
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49 } |
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50 |
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51 @Override |
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52 public PackedFrame getCaller() { |
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53 return 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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54 } |
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55 |
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56 @Override |
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57 public PackedFrame pack() { |
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58 return new DefaultPackedFrame(this); |
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59 } |
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60 |
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61 @Override |
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62 public MaterializedFrame materialize() { |
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63 return new DefaultMaterializedFrame(this); |
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64 } |
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65 |
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66 @Override |
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67 public Object getObject(FrameSlot slot) throws FrameSlotTypeException { |
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68 verifyGet(slot, FrameSlotKind.Object); |
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69 return locals[slot.getIndex()]; |
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70 } |
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71 |
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72 @Override |
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73 public void setObject(FrameSlot slot, Object value) throws FrameSlotTypeException { |
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74 verifySet(slot, FrameSlotKind.Object); |
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75 locals[slot.getIndex()] = value; |
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76 } |
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77 |
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78 @Override |
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79 public boolean getBoolean(FrameSlot slot) throws FrameSlotTypeException { |
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80 verifyGet(slot, FrameSlotKind.Boolean); |
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81 return (boolean) locals[slot.getIndex()]; |
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82 } |
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83 |
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84 @Override |
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85 public void setBoolean(FrameSlot slot, boolean value) throws FrameSlotTypeException { |
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86 verifySet(slot, FrameSlotKind.Boolean); |
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87 locals[slot.getIndex()] = value; |
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88 } |
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89 |
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90 @Override |
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91 public int getInt(FrameSlot slot) throws FrameSlotTypeException { |
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92 verifyGet(slot, FrameSlotKind.Int); |
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93 return (int) locals[slot.getIndex()]; |
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94 } |
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95 |
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96 @Override |
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97 public void setInt(FrameSlot slot, int value) throws FrameSlotTypeException { |
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98 verifySet(slot, FrameSlotKind.Int); |
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99 locals[slot.getIndex()] = value; |
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100 } |
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101 |
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102 @Override |
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103 public long getLong(FrameSlot slot) throws FrameSlotTypeException { |
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104 verifyGet(slot, FrameSlotKind.Long); |
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105 return (long) locals[slot.getIndex()]; |
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106 } |
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107 |
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108 @Override |
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109 public void setLong(FrameSlot slot, long value) throws FrameSlotTypeException { |
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110 verifySet(slot, FrameSlotKind.Long); |
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111 locals[slot.getIndex()] = value; |
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112 } |
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113 |
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114 @Override |
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115 public float getFloat(FrameSlot slot) throws FrameSlotTypeException { |
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116 verifyGet(slot, FrameSlotKind.Float); |
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117 return (float) locals[slot.getIndex()]; |
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118 } |
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119 |
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120 @Override |
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121 public void setFloat(FrameSlot slot, float value) throws FrameSlotTypeException { |
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122 verifySet(slot, FrameSlotKind.Float); |
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123 locals[slot.getIndex()] = 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) throws FrameSlotTypeException { |
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128 verifyGet(slot, FrameSlotKind.Double); |
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129 return (double) locals[slot.getIndex()]; |
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130 } |
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131 |
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132 @Override |
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133 public void setDouble(FrameSlot slot, double value) throws FrameSlotTypeException { |
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134 verifySet(slot, FrameSlotKind.Double); |
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135 locals[slot.getIndex()] = value; |
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136 } |
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137 |
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138 @Override |
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139 public FrameDescriptor getFrameDescriptor() { |
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140 return this.descriptor; |
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141 } |
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142 |
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143 @Override |
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144 public Object getValue(FrameSlot slot) { |
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145 int index = slot.getIndex(); |
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146 if (index >= tags.length) { |
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147 assert index >= 0 && index < descriptor.getSize(); |
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148 return descriptor.getTypeConversion().getDefaultValue(); |
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149 } |
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150 byte tag = tags[index]; |
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151 if (tag == FrameSlotKind.Illegal.ordinal()) { |
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152 return descriptor.getTypeConversion().getDefaultValue(); |
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153 } else { |
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154 return locals[index]; |
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155 } |
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156 } |
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157 |
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158 private void verifySet(FrameSlot slot, FrameSlotKind accessKind) throws FrameSlotTypeException { |
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159 FrameSlotKind slotKind = slot.getKind(); |
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160 if (slotKind != accessKind) { |
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161 if (slotKind == FrameSlotKind.Illegal) { |
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162 slot.setKind(accessKind); |
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163 } else { |
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164 throw new FrameSlotTypeException(); |
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165 } |
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166 } |
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167 int slotIndex = slot.getIndex(); |
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168 if (slotIndex >= tags.length) { |
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169 resize(); |
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170 } |
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171 tags[slotIndex] = (byte) accessKind.ordinal(); |
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172 } |
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173 |
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174 private void verifyGet(FrameSlot slot, FrameSlotKind accessKind) throws FrameSlotTypeException { |
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175 FrameSlotKind slotKind = slot.getKind(); |
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176 if (slotKind != accessKind) { |
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177 if (slotKind == FrameSlotKind.Illegal && accessKind == FrameSlotKind.Object) { |
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178 slot.setKind(FrameSlotKind.Object); |
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179 this.setObject(slot, descriptor.getTypeConversion().getDefaultValue()); |
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180 } else { |
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181 throw new FrameSlotTypeException(); |
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182 } |
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183 } |
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184 int slotIndex = slot.getIndex(); |
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185 if (slotIndex >= tags.length) { |
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186 resize(); |
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187 } |
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188 if (tags[slotIndex] != accessKind.ordinal()) { |
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189 descriptor.getTypeConversion().updateFrameSlot(this, slot, getValue(slot)); |
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190 if (tags[slotIndex] != accessKind.ordinal()) { |
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191 throw new FrameSlotTypeException(); |
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192 } |
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193 } |
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194 } |
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195 |
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196 private void resize() { |
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197 int newSize = descriptor.getSize(); |
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198 if (newSize > tags.length) { |
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199 locals = Arrays.copyOf(locals, newSize); |
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200 tags = Arrays.copyOf(tags, newSize); |
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201 } |
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202 } |
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203 } |