Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Kind.java @ 7816:4e1278443941
Remove Kind.Jsr.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Mon, 18 Feb 2013 20:55:18 -0800 |
parents | f3fcc94f7120 |
children | 149fe42411df |
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1 /* |
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2 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.api.meta; |
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24 |
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25 import java.lang.reflect.*; |
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26 |
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27 /** |
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28 * Denotes the basic kinds of types in CRI, including the all the Java primitive types, for example, |
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29 * {@link Kind#Int} for {@code int} and {@link Kind#Object} for all object types. A kind has a |
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30 * single character short name, a Java name, and a set of flags further describing its behavior. |
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31 */ |
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32 public enum Kind { |
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33 /** The primitive boolean kind, represented as an int on the stack. */ |
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34 Boolean('z', "boolean", true, java.lang.Boolean.TYPE, java.lang.Boolean.class), |
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35 |
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36 /** The primitive byte kind, represented as an int on the stack. */ |
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37 Byte('b', "byte", true, java.lang.Byte.TYPE, java.lang.Byte.class), |
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38 |
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39 /** The primitive short kind, represented as an int on the stack. */ |
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40 Short('s', "short", true, java.lang.Short.TYPE, java.lang.Short.class), |
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41 |
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42 /** The primitive char kind, represented as an int on the stack. */ |
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43 Char('c', "char", true, java.lang.Character.TYPE, java.lang.Character.class), |
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44 |
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45 /** The primitive int kind, represented as an int on the stack. */ |
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46 Int('i', "int", true, java.lang.Integer.TYPE, java.lang.Integer.class), |
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47 |
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48 /** The primitive float kind. */ |
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49 Float('f', "float", false, java.lang.Float.TYPE, java.lang.Float.class), |
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50 |
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51 /** The primitive long kind. */ |
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52 Long('j', "long", false, java.lang.Long.TYPE, java.lang.Long.class), |
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53 |
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54 /** The primitive double kind. */ |
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55 Double('d', "double", false, java.lang.Double.TYPE, java.lang.Double.class), |
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56 |
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57 /** The Object kind, also used for arrays. */ |
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58 Object('a', "Object", false, null, null), |
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59 |
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60 /** The void float kind. */ |
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61 Void('v', "void", false, java.lang.Void.TYPE, java.lang.Void.class), |
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62 |
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63 /** The non-type. */ |
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64 Illegal('-', "illegal", false, null, null); |
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65 |
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66 private final char typeChar; |
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67 private final String javaName; |
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68 private final boolean isStackInt; |
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69 private final Class primitiveJavaClass; |
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70 private final Class boxedJavaClass; |
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71 |
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72 private Kind(char typeChar, String javaName, boolean isStackInt, Class primitiveJavaClass, Class boxedJavasClass) { |
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73 this.typeChar = typeChar; |
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74 this.javaName = javaName; |
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75 this.isStackInt = isStackInt; |
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76 this.primitiveJavaClass = primitiveJavaClass; |
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77 this.boxedJavaClass = boxedJavasClass; |
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78 assert primitiveJavaClass == null || javaName.equals(primitiveJavaClass.getName()); |
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79 } |
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80 |
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81 /** |
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82 * Returns the name of the kind as a single character. |
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83 */ |
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84 public char getTypeChar() { |
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85 return typeChar; |
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86 } |
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87 |
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88 /** |
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89 * Returns the name of this kind which will also be it Java programming language name if it is |
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90 * {@linkplain #isPrimitive() primitive} or {@code void}. |
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91 */ |
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92 public String getJavaName() { |
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93 return javaName; |
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94 } |
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95 |
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96 /** |
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97 * Checks whether this type is a Java primitive type. |
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98 * |
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99 * @return {@code true} if this is {@link #Boolean}, {@link #Byte}, {@link #Char}, |
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100 * {@link #Short}, {@link #Int}, {@link #Long}, {@link #Float}, {@link #Double}, or |
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101 * {@link #Void}. |
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102 */ |
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103 public boolean isPrimitive() { |
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104 return primitiveJavaClass != null; |
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105 } |
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106 |
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107 /** |
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108 * Returns the kind that represents this kind when on the Java operand stack. |
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109 * |
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110 * @return the kind used on the operand stack |
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111 */ |
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112 public Kind getStackKind() { |
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113 if (isStackInt) { |
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114 return Int; |
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115 } |
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116 return this; |
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117 } |
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118 |
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119 /** |
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120 * Returns the kind corresponding to the Java type string. |
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121 * |
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122 * @param typeString the Java type string |
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123 * @return the kind |
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124 */ |
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125 public static Kind fromTypeString(String typeString) { |
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126 assert typeString.length() > 0; |
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127 final char first = typeString.charAt(0); |
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128 if (first == '[' || first == 'L') { |
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129 return Kind.Object; |
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130 } |
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131 return Kind.fromPrimitiveOrVoidTypeChar(first); |
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132 } |
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133 |
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134 /** |
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135 * Returns the kind of a word given the size of a word in bytes. |
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136 * |
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137 * @param wordSizeInBytes the size of a word in bytes |
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138 * @return the kind representing a word value |
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139 */ |
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140 public static Kind fromWordSize(int wordSizeInBytes) { |
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141 if (wordSizeInBytes == 8) { |
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142 return Kind.Long; |
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143 } else { |
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144 assert wordSizeInBytes == 4 : "Unsupported word size!"; |
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145 return Kind.Int; |
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146 } |
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147 } |
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148 |
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149 /** |
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150 * Returns the kind from the character describing a primitive or void. |
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151 * |
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152 * @param ch the character |
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153 * @return the kind |
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154 */ |
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155 public static Kind fromPrimitiveOrVoidTypeChar(char ch) { |
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156 switch (ch) { |
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157 case 'Z': |
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158 return Boolean; |
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159 case 'C': |
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160 return Char; |
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161 case 'F': |
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162 return Float; |
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163 case 'D': |
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164 return Double; |
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165 case 'B': |
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166 return Byte; |
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167 case 'S': |
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168 return Short; |
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169 case 'I': |
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170 return Int; |
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171 case 'J': |
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172 return Long; |
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173 case 'V': |
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174 return Void; |
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175 } |
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176 throw new IllegalArgumentException("unknown primitive or void type character: " + ch); |
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177 } |
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178 |
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179 /** |
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180 * Returns the Kind representing the given Java class. |
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181 * |
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182 * @param klass the class |
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183 * @return the kind |
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184 */ |
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185 public static Kind fromJavaClass(Class<?> klass) { |
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186 if (klass == Boolean.primitiveJavaClass) { |
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187 return Boolean; |
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188 } else if (klass == Byte.primitiveJavaClass) { |
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189 return Byte; |
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190 } else if (klass == Short.primitiveJavaClass) { |
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191 return Short; |
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192 } else if (klass == Char.primitiveJavaClass) { |
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193 return Char; |
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194 } else if (klass == Int.primitiveJavaClass) { |
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195 return Int; |
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196 } else if (klass == Long.primitiveJavaClass) { |
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197 return Long; |
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198 } else if (klass == Float.primitiveJavaClass) { |
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199 return Float; |
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200 } else if (klass == Double.primitiveJavaClass) { |
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201 return Double; |
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202 } else if (klass == Void.primitiveJavaClass) { |
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203 return Void; |
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204 } else { |
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205 return Object; |
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206 } |
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207 } |
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208 |
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209 /** |
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210 * Returns the Java class representing this kind. |
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211 * |
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212 * @return the Java class |
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213 */ |
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214 public Class<?> toJavaClass() { |
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215 return primitiveJavaClass; |
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216 } |
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217 |
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218 /** |
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219 * Returns the Java class for instances of boxed values of this kind. |
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220 * |
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221 * @return the Java class |
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222 */ |
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223 public Class<?> toBoxedJavaClass() { |
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224 return boxedJavaClass; |
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225 } |
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226 |
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227 /** |
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228 * Converts this value type to a string. |
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229 */ |
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230 @Override |
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231 public String toString() { |
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232 return javaName; |
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233 } |
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234 |
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235 /** |
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236 * Marker interface for types that should be {@linkplain Kind#format(Object) formatted} with |
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237 * their {@link Object#toString()} value. |
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238 */ |
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239 public interface FormatWithToString { |
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240 } |
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241 |
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242 /** |
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243 * Gets a formatted string for a given value of this kind. |
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244 * |
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245 * @param value a value of this kind |
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246 * @return a formatted string for {@code value} based on this kind |
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247 */ |
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248 public String format(Object value) { |
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249 if (this == Kind.Object) { |
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250 if (value == null) { |
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251 return "null"; |
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252 } else { |
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253 if (value instanceof String) { |
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254 String s = (String) value; |
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255 if (s.length() > 50) { |
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256 return "String:\"" + s.substring(0, 30) + "...\""; |
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257 } else { |
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258 return "String:\"" + s + '"'; |
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259 } |
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260 } else if (value instanceof JavaType) { |
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261 return "JavaType:" + MetaUtil.toJavaName((JavaType) value); |
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262 } else if (value instanceof Enum || value instanceof FormatWithToString || value instanceof Number) { |
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263 return MetaUtil.getSimpleName(value.getClass(), true) + ":" + String.valueOf(value); |
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264 } else if (value instanceof Class<?>) { |
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265 return "Class:" + ((Class<?>) value).getName(); |
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266 } else if (value.getClass().isArray()) { |
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267 return formatArray(value); |
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268 } else { |
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269 return MetaUtil.getSimpleName(value.getClass(), true) + "@" + System.identityHashCode(value); |
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270 } |
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271 } |
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272 } else { |
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273 return value.toString(); |
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274 } |
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275 } |
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276 |
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277 private static final int MAX_FORMAT_ARRAY_LENGTH = 5; |
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278 |
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279 private static String formatArray(Object array) { |
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280 Class<?> componentType = array.getClass().getComponentType(); |
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281 assert componentType != null; |
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282 int arrayLength = Array.getLength(array); |
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283 StringBuilder buf = new StringBuilder(MetaUtil.getSimpleName(componentType, true)).append('[').append(arrayLength).append("]{"); |
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284 int length = Math.min(MAX_FORMAT_ARRAY_LENGTH, arrayLength); |
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285 boolean primitive = componentType.isPrimitive(); |
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286 for (int i = 0; i < length; i++) { |
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287 if (primitive) { |
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288 buf.append(Array.get(array, i)); |
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289 } else { |
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290 Object o = ((Object[]) array)[i]; |
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291 buf.append(Kind.Object.format(o)); |
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292 } |
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293 if (i != length - 1) { |
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294 buf.append(", "); |
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295 } |
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296 } |
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297 if (arrayLength != length) { |
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298 buf.append(", ..."); |
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299 } |
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300 return buf.append('}').toString(); |
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301 } |
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302 |
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303 /** |
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304 * The minimum value that can be represented as a value of this kind. |
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305 * |
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306 * @return the minimum value |
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307 */ |
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308 public long getMinValue() { |
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309 switch (this) { |
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310 case Boolean: |
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311 return 0; |
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312 case Byte: |
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313 return java.lang.Byte.MIN_VALUE; |
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314 case Char: |
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315 return java.lang.Character.MIN_VALUE; |
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316 case Short: |
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317 return java.lang.Short.MIN_VALUE; |
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318 case Int: |
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319 return java.lang.Integer.MIN_VALUE; |
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320 case Long: |
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321 return java.lang.Long.MIN_VALUE; |
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322 default: |
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323 throw new IllegalArgumentException("illegal call to minValue on " + this); |
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324 } |
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325 } |
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326 |
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327 /** |
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328 * The maximum value that can be represented as a value of this kind. |
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329 * |
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330 * @return the maximum value |
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331 */ |
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332 public long getMaxValue() { |
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333 switch (this) { |
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334 case Boolean: |
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335 return 1; |
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336 case Byte: |
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337 return java.lang.Byte.MAX_VALUE; |
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338 case Char: |
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339 return java.lang.Character.MAX_VALUE; |
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340 case Short: |
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341 return java.lang.Short.MAX_VALUE; |
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342 case Int: |
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343 return java.lang.Integer.MAX_VALUE; |
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344 case Long: |
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345 return java.lang.Long.MAX_VALUE; |
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346 default: |
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347 throw new IllegalArgumentException("illegal call to maxValue on " + this); |
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348 } |
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349 } |
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350 |
6328
6e66d97a16ae
Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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351 /** |
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352 * Number of bits that are necessary to represent a value of this kind. |
7530
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applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
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353 * |
6328
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354 * @return the number of bits |
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355 */ |
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356 public int getBitCount() { |
5874
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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357 switch (this) { |
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358 case Boolean: |
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359 return 1; |
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parents:
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360 case Byte: |
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361 return 8; |
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parents:
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362 case Char: |
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parents:
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363 case Short: |
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parents:
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364 return 16; |
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parents:
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365 case Int: |
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366 return 32; |
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parents:
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367 case Long: |
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parents:
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368 return 64; |
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parents:
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369 default: |
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370 throw new IllegalArgumentException("illegal call to bits on " + this); |
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parents:
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371 } |
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parents:
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372 } |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
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373 } |