Mercurial > hg > truffle
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultVirtualFrame.java @ 11427:51dcddfa25a6
Truffle: add Byte to Frame
author | Christian Wirth <christian.wirth@oracle.com> |
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date | Mon, 26 Aug 2013 18:25:40 +0200 |
parents | 494b818b527c |
children | 269e6794e1ec |
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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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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.
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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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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 * |
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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 * 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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12 * 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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13 * 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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14 * 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>
parents:
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15 * 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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16 * |
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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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17 * 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>
parents:
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18 * 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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19 * 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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20 * |
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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 * 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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22 * 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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23 * 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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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 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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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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 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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28 |
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29 import com.oracle.truffle.api.*; |
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30 import com.oracle.truffle.api.frame.*; |
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31 |
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32 public final class DefaultVirtualFrame implements VirtualFrame { |
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33 |
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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 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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35 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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36 private final Arguments arguments; |
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37 private Object[] locals; |
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38 private byte[] tags; |
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39 |
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40 public DefaultVirtualFrame(FrameDescriptor descriptor, PackedFrame caller, Arguments arguments) { |
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41 this.descriptor = descriptor; |
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42 this.caller = caller; |
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43 this.arguments = arguments; |
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44 this.locals = new Object[descriptor.getSize()]; |
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45 this.tags = new byte[descriptor.getSize()]; |
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46 } |
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47 |
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48 @SuppressWarnings("unchecked") |
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49 @Override |
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50 public <T extends Arguments> T getArguments(Class<T> clazz) { |
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51 return (T) arguments; |
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52 } |
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53 |
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54 @Override |
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55 public PackedFrame getCaller() { |
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56 return caller; |
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57 } |
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58 |
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59 @Override |
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60 public PackedFrame pack() { |
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61 return new DefaultPackedFrame(this); |
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62 } |
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63 |
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64 @Override |
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65 public MaterializedFrame materialize() { |
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66 return new DefaultMaterializedFrame(this); |
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67 } |
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68 |
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69 @Override |
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70 public Object getObject(FrameSlot slot) throws FrameSlotTypeException { |
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71 verifyGet(slot, FrameSlotKind.Object); |
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72 return locals[slot.getIndex()]; |
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73 } |
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74 |
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75 @Override |
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76 public void setObject(FrameSlot slot, Object value) throws FrameSlotTypeException { |
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77 verifySet(slot, FrameSlotKind.Object); |
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78 locals[slot.getIndex()] = value; |
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79 } |
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80 |
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81 @Override |
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82 public byte getByte(FrameSlot slot) throws FrameSlotTypeException { |
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83 verifyGet(slot, FrameSlotKind.Byte); |
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84 return (byte) locals[slot.getIndex()]; |
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85 } |
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86 |
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87 @Override |
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88 public void setByte(FrameSlot slot, byte value) throws FrameSlotTypeException { |
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89 verifySet(slot, FrameSlotKind.Byte); |
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90 locals[slot.getIndex()] = value; |
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91 } |
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92 |
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93 @Override |
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94 public boolean getBoolean(FrameSlot slot) throws FrameSlotTypeException { |
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95 verifyGet(slot, FrameSlotKind.Boolean); |
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96 return (boolean) locals[slot.getIndex()]; |
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97 } |
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98 |
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99 @Override |
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100 public void setBoolean(FrameSlot slot, boolean value) throws FrameSlotTypeException { |
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101 verifySet(slot, FrameSlotKind.Boolean); |
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102 locals[slot.getIndex()] = value; |
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103 } |
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104 |
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105 @Override |
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106 public int getInt(FrameSlot slot) throws FrameSlotTypeException { |
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107 verifyGet(slot, FrameSlotKind.Int); |
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108 return (int) locals[slot.getIndex()]; |
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109 } |
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110 |
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111 @Override |
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112 public void setInt(FrameSlot slot, int value) throws FrameSlotTypeException { |
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113 verifySet(slot, FrameSlotKind.Int); |
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114 locals[slot.getIndex()] = value; |
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115 } |
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116 |
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117 @Override |
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118 public long getLong(FrameSlot slot) throws FrameSlotTypeException { |
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119 verifyGet(slot, FrameSlotKind.Long); |
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120 return (long) locals[slot.getIndex()]; |
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121 } |
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122 |
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123 @Override |
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124 public void setLong(FrameSlot slot, long value) throws FrameSlotTypeException { |
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125 verifySet(slot, FrameSlotKind.Long); |
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126 locals[slot.getIndex()] = value; |
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127 } |
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128 |
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129 @Override |
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130 public float getFloat(FrameSlot slot) throws FrameSlotTypeException { |
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131 verifyGet(slot, FrameSlotKind.Float); |
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132 return (float) locals[slot.getIndex()]; |
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133 } |
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134 |
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135 @Override |
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136 public void setFloat(FrameSlot slot, float value) throws FrameSlotTypeException { |
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137 verifySet(slot, FrameSlotKind.Float); |
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138 locals[slot.getIndex()] = value; |
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139 } |
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140 |
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141 @Override |
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142 public double getDouble(FrameSlot slot) throws FrameSlotTypeException { |
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143 verifyGet(slot, FrameSlotKind.Double); |
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144 return (double) locals[slot.getIndex()]; |
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145 } |
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146 |
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147 @Override |
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148 public void setDouble(FrameSlot slot, double value) throws FrameSlotTypeException { |
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149 verifySet(slot, FrameSlotKind.Double); |
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150 locals[slot.getIndex()] = value; |
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151 } |
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152 |
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153 @Override |
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154 public FrameDescriptor getFrameDescriptor() { |
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155 return this.descriptor; |
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156 } |
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157 |
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158 @Override |
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159 public Object getValue(FrameSlot slot) { |
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160 int index = slot.getIndex(); |
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161 if (index >= tags.length) { |
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162 assert index >= 0 && index < descriptor.getSize(); |
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163 return descriptor.getTypeConversion().getDefaultValue(); |
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164 } |
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165 byte tag = tags[index]; |
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166 if (tag == FrameSlotKind.Illegal.ordinal()) { |
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167 return descriptor.getTypeConversion().getDefaultValue(); |
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168 } else { |
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169 return locals[index]; |
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170 } |
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171 } |
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172 |
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173 private void verifySet(FrameSlot slot, FrameSlotKind accessKind) throws FrameSlotTypeException { |
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174 FrameSlotKind slotKind = slot.getKind(); |
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175 if (slotKind != accessKind) { |
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176 if (slotKind == FrameSlotKind.Illegal) { |
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177 slot.setKind(accessKind); |
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178 } else { |
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179 throw new FrameSlotTypeException(); |
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180 } |
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181 } |
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182 int slotIndex = slot.getIndex(); |
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183 if (slotIndex >= tags.length) { |
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184 resize(); |
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185 } |
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186 tags[slotIndex] = (byte) accessKind.ordinal(); |
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187 } |
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188 |
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189 private void verifyGet(FrameSlot slot, FrameSlotKind accessKind) throws FrameSlotTypeException { |
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190 FrameSlotKind slotKind = slot.getKind(); |
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191 if (slotKind != accessKind) { |
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192 if (slotKind == FrameSlotKind.Illegal && accessKind == FrameSlotKind.Object) { |
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193 slot.setKind(FrameSlotKind.Object); |
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194 this.setObject(slot, descriptor.getTypeConversion().getDefaultValue()); |
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195 } else { |
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196 throw new FrameSlotTypeException(); |
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197 } |
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198 } |
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199 int slotIndex = slot.getIndex(); |
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200 if (slotIndex >= tags.length) { |
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201 resize(); |
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202 } |
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203 if (tags[slotIndex] != accessKind.ordinal()) { |
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204 descriptor.getTypeConversion().updateFrameSlot(this, slot, getValue(slot)); |
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205 if (tags[slotIndex] != accessKind.ordinal()) { |
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206 throw new FrameSlotTypeException(); |
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207 } |
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208 } |
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209 } |
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210 |
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211 private void resize() { |
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212 int newSize = descriptor.getSize(); |
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213 if (newSize > tags.length) { |
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214 locals = Arrays.copyOf(locals, newSize); |
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215 tags = Arrays.copyOf(tags, newSize); |
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216 } |
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217 } |
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218 |
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219 @Override |
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220 public boolean isInitialized(FrameSlot slot) { |
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221 try { |
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222 return tags[slot.getIndex()] != 0; |
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223 } catch (ArrayIndexOutOfBoundsException ex) { |
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224 if (slot.getIndex() >= 0 && slot.getIndex() < descriptor.getSize()) { |
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225 return false; |
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226 } |
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227 throw ex; |
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228 } |
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229 } |
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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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230 } |