Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiKind.java @ 5415:79f12805362b
Use iterative lowering instead of manually applying lowering
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 18 May 2012 15:48:38 +0200 |
parents | 1d760684d958 |
children | ab31310d4af9 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 2011, 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.max.cri.ci; |
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24 |
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25 import static com.oracle.max.cri.ci.CiKind.Flags.*; |
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26 |
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27 import java.lang.reflect.*; |
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28 |
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29 import sun.misc.*; |
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30 |
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31 import com.oracle.max.cri.ri.*; |
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32 |
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33 /** |
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34 * Denotes the basic kinds of types in CRI, including the all the Java primitive types, |
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35 * for example, {@link CiKind#Int} for {@code int} and {@link CiKind#Object} |
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36 * for all object types. |
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37 * A kind has a single character short name, a Java name, and a set of flags |
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38 * further describing its behavior. |
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39 */ |
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40 public enum CiKind { |
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41 Boolean('z', "boolean", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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42 Byte ('b', "byte", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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43 Short ('s', "short", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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44 Char ('c', "char", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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45 Int ('i', "int", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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46 Float ('f', "float", FIELD_TYPE | RETURN_TYPE | PRIMITIVE), |
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47 Long ('j', "long", FIELD_TYPE | RETURN_TYPE | PRIMITIVE), |
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48 Double ('d', "double", FIELD_TYPE | RETURN_TYPE | PRIMITIVE), |
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49 Object ('a', "Object", FIELD_TYPE | RETURN_TYPE), |
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50 Void ('v', "void", RETURN_TYPE), |
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51 /** Denote a bytecode address in a {@code JSR} bytecode. */ |
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52 Jsr ('r', "jsr", 0), |
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53 /** The non-type. */ |
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54 Illegal('-', "illegal", 0); |
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55 |
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56 public static final CiKind[] VALUES = values(); |
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57 public static final CiKind[] JAVA_VALUES = new CiKind[] {CiKind.Boolean, CiKind.Byte, CiKind.Short, CiKind.Char, CiKind.Int, CiKind.Float, CiKind.Long, CiKind.Double, CiKind.Object}; |
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58 |
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59 CiKind(char ch, String name, int flags) { |
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60 this.typeChar = ch; |
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61 this.javaName = name; |
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62 this.flags = flags; |
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63 } |
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64 |
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65 static class Flags { |
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66 /** |
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67 * Can be an object field type. |
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68 */ |
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69 public static final int FIELD_TYPE = 0x0001; |
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70 /** |
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71 * Can be result type of a method. |
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72 */ |
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73 public static final int RETURN_TYPE = 0x0002; |
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74 /** |
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75 * Behaves as an integer when on Java evaluation stack. |
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76 */ |
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77 public static final int STACK_INT = 0x0004; |
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78 /** |
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79 * Represents a Java primitive type. |
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80 */ |
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81 public static final int PRIMITIVE = 0x0008; |
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82 } |
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83 |
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84 /** |
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85 * The flags for this kind. |
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86 */ |
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87 private final int flags; |
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88 |
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89 /** |
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90 * The name of the kind as a single character. |
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91 */ |
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92 public final char typeChar; |
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93 |
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94 /** |
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95 * The name of this kind which will also be it Java programming language name if |
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96 * it is {@linkplain #isPrimitive() primitive} or {@code void}. |
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97 */ |
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98 public final String javaName; |
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99 |
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100 /** |
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101 * Checks whether this kind is valid as the type of a field. |
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102 * @return {@code true} if this kind is valid as the type of a Java field |
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103 */ |
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104 public boolean isValidFieldType() { |
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105 return (flags & FIELD_TYPE) != 0; |
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106 } |
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107 |
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108 /** |
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109 * Checks whether this kind is valid as the return type of a method. |
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110 * @return {@code true} if this kind is valid as the return type of a Java method |
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111 */ |
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112 public boolean isValidReturnType() { |
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113 return (flags & RETURN_TYPE) != 0; |
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114 } |
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115 |
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116 /** |
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117 * Checks whether this type is valid as an {@code int} on the Java operand stack. |
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118 * @return {@code true} if this type is represented by an {@code int} on the operand stack |
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119 */ |
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120 public boolean isInt() { |
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121 return (flags & STACK_INT) != 0; |
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122 } |
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123 |
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diff
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124 /** |
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125 * Checks whether this type is a Java primitive type. |
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126 * @return {@code true} if this is {@link #Boolean}, {@link #Byte}, {@link #Char}, {@link #Short}, |
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127 * {@link #Int}, {@link #Long}, {@link #Float} or {@link #Double}. |
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128 */ |
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129 public boolean isPrimitive() { |
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130 return (flags & PRIMITIVE) != 0; |
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131 } |
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132 |
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133 /** |
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134 * Gets the kind that represents this kind when on the Java operand stack. |
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135 * @return the kind used on the operand stack |
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136 */ |
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137 public CiKind stackKind() { |
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138 if (isInt()) { |
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139 return Int; |
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140 } |
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141 return this; |
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142 } |
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143 |
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144 public static CiKind fromTypeString(String typeString) { |
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145 assert typeString.length() > 0; |
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146 final char first = typeString.charAt(0); |
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147 if (first == '[' || first == 'L') { |
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148 return CiKind.Object; |
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149 } |
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150 return CiKind.fromPrimitiveOrVoidTypeChar(first); |
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151 } |
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152 |
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153 /** |
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154 * Gets the kind from the character describing a primitive or void. |
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155 * @param ch the character |
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156 * @return the kind |
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|
157 */ |
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158 public static CiKind fromPrimitiveOrVoidTypeChar(char ch) { |
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159 // Checkstyle: stop |
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|
160 switch (ch) { |
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|
161 case 'Z': return Boolean; |
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162 case 'C': return Char; |
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163 case 'F': return Float; |
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|
164 case 'D': return Double; |
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|
165 case 'B': return Byte; |
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166 case 'S': return Short; |
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|
167 case 'I': return Int; |
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168 case 'J': return Long; |
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|
169 case 'V': return Void; |
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|
170 } |
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|
171 // Checkstyle: resume |
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|
172 throw new IllegalArgumentException("unknown primitive or void type character: " + ch); |
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173 } |
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174 |
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|
175 public Class< ? > toJavaClass() { |
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|
176 // Checkstyle: stop |
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|
177 switch(this) { |
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178 case Void: return java.lang.Void.TYPE; |
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179 case Long: return java.lang.Long.TYPE; |
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180 case Int: return java.lang.Integer.TYPE; |
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181 case Byte: return java.lang.Byte.TYPE; |
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182 case Char: return java.lang.Character.TYPE; |
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183 case Double: return java.lang.Double.TYPE; |
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184 case Float: return java.lang.Float.TYPE; |
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185 case Short: return java.lang.Short.TYPE; |
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186 case Boolean: return java.lang.Boolean.TYPE; |
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187 default: return null; |
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|
188 } |
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189 // Checkstyle: resume |
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190 } |
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191 |
5349
077ec9468516
rename CiKind.toUnboxedJavaClass to toBoxedJavaClass
Gilles Duboscq <duboscq@ssw.jku.at>
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4468
diff
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|
192 public Class< ? > toBoxedJavaClass() { |
3733
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193 // Checkstyle: stop |
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|
194 switch(this) { |
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|
195 case Void: return null; |
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196 case Long: return java.lang.Long.class; |
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197 case Int: return java.lang.Integer.class; |
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198 case Byte: return java.lang.Byte.class; |
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199 case Char: return java.lang.Character.class; |
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200 case Double: return java.lang.Double.class; |
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201 case Float: return java.lang.Float.class; |
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202 case Short: return java.lang.Short.class; |
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|
203 case Boolean: return java.lang.Boolean.class; |
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|
204 default: return null; |
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|
205 } |
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|
206 // Checkstyle: resume |
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|
207 } |
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|
208 |
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diff
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|
209 /** |
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|
210 * Checks whether this value type is void. |
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|
211 * @return {@code true} if this type is void |
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diff
changeset
|
212 */ |
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|
213 public final boolean isVoid() { |
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|
214 return this == CiKind.Void; |
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|
215 } |
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|
216 |
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diff
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|
217 /** |
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|
218 * Checks whether this value type is long. |
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|
219 * @return {@code true} if this type is long |
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|
220 */ |
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|
221 public final boolean isLong() { |
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changeset
|
222 return this == CiKind.Long; |
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|
223 } |
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|
224 |
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parents:
diff
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|
225 /** |
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|
226 * Checks whether this value type is float. |
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|
227 * @return {@code true} if this type is float |
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diff
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|
228 */ |
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diff
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|
229 public final boolean isFloat() { |
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|
230 return this == CiKind.Float; |
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diff
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|
231 } |
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diff
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|
232 |
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parents:
diff
changeset
|
233 /** |
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diff
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|
234 * Checks whether this value type is double. |
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parents:
diff
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|
235 * @return {@code true} if this type is double |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
236 */ |
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diff
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|
237 public final boolean isDouble() { |
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parents:
diff
changeset
|
238 return this == CiKind.Double; |
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parents:
diff
changeset
|
239 } |
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parents:
diff
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|
240 |
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parents:
diff
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|
241 /** |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
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|
242 * Checks whether this value type is float or double. |
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parents:
diff
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|
243 * @return {@code true} if this type is float or double |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
244 */ |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff
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|
245 public final boolean isFloatOrDouble() { |
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diff
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|
246 return this == CiKind.Double || this == CiKind.Float; |
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diff
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|
247 } |
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parents:
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|
248 |
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|
249 /** |
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250 * Checks whether this value type is an object type. |
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251 * @return {@code true} if this type is an object |
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252 */ |
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253 public final boolean isObject() { |
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254 return this == CiKind.Object; |
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255 } |
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256 |
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257 /** |
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258 * Checks whether this value type is an address type. |
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259 * @return {@code true} if this type is an address |
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260 */ |
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261 public boolean isJsr() { |
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262 return this == CiKind.Jsr; |
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263 } |
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264 |
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265 /** |
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266 * Converts this value type to a string. |
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267 */ |
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268 @Override |
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269 public String toString() { |
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270 return javaName; |
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271 } |
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272 |
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273 /** |
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274 * Marker interface for types that should be {@linkplain CiKind#format(Object) formatted} |
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275 * with their {@link Object#toString()} value. |
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276 */ |
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277 public interface FormatWithToString {} |
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278 |
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279 /** |
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280 * Gets a formatted string for a given value of this kind. |
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281 * |
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282 * @param value a value of this kind |
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283 * @return a formatted string for {@code value} based on this kind |
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284 */ |
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285 public String format(Object value) { |
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286 if (isObject()) { |
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287 if (value == null) { |
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288 return "null"; |
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289 } else { |
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290 if (value instanceof String) { |
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291 String s = (String) value; |
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292 if (s.length() > 50) { |
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293 return "\"" + s.substring(0, 30) + "...\""; |
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294 } else { |
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295 return " \"" + s + '"'; |
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296 } |
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297 } else if (value instanceof RiType) { |
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298 return "class " + CiUtil.toJavaName((RiType) value); |
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299 } else if (value instanceof Enum || value instanceof FormatWithToString) { |
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300 return String.valueOf(value); |
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301 } else if (value instanceof Class< ? >) { |
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302 return ((Class< ? >) value).getName() + ".class"; |
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303 } else if (value.getClass().isArray()) { |
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304 return formatArray(value); |
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305 } else { |
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306 return CiUtil.getSimpleName(value.getClass(), true) + "@" + System.identityHashCode(value); |
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307 } |
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308 } |
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309 } else { |
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310 return value.toString(); |
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311 } |
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312 } |
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313 |
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314 private static final int MAX_FORMAT_ARRAY_LENGTH = Integer.getInteger("maxFormatArrayLength", 5); |
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315 |
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316 private static String formatArray(Object array) { |
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317 Class< ? > componentType = array.getClass().getComponentType(); |
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318 assert componentType != null; |
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319 int arrayLength = Array.getLength(array); |
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320 StringBuilder buf = new StringBuilder(CiUtil.getSimpleName(componentType, true)). |
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321 append('['). |
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322 append(arrayLength). |
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323 append("]{"); |
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324 int length = Math.min(MAX_FORMAT_ARRAY_LENGTH, arrayLength); |
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325 boolean primitive = componentType.isPrimitive(); |
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326 for (int i = 0; i < length; i++) { |
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327 if (primitive) { |
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328 buf.append(Array.get(array, i)); |
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329 } else { |
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330 Object o = ((Object[]) array)[i]; |
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331 buf.append(CiKind.Object.format(o)); |
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332 } |
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333 if (i != length - 1) { |
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334 buf.append(", "); |
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335 } |
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336 } |
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337 if (arrayLength != length) { |
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338 buf.append(", ..."); |
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339 } |
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340 return buf.append('}').toString(); |
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341 } |
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342 |
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343 public final char signatureChar() { |
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344 return Character.toUpperCase(typeChar); |
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345 } |
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346 |
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347 public CiConstant readUnsafeConstant(Object value, long displacement) { |
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348 assert value != null; |
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349 Unsafe u = Unsafe.getUnsafe(); |
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350 switch(this) { |
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351 case Boolean: |
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352 return CiConstant.forBoolean(u.getBoolean(value, displacement)); |
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353 case Byte: |
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354 return CiConstant.forByte(u.getByte(value, displacement)); |
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355 case Char: |
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356 return CiConstant.forChar(u.getChar(value, displacement)); |
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357 case Short: |
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358 return CiConstant.forShort(u.getShort(value, displacement)); |
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359 case Int: |
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360 return CiConstant.forInt(u.getInt(value, displacement)); |
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361 case Long: |
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362 return CiConstant.forLong(u.getLong(value, displacement)); |
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363 case Float: |
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364 return CiConstant.forFloat(u.getFloat(value, displacement)); |
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365 case Double: |
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366 return CiConstant.forDouble(u.getDouble(value, displacement)); |
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367 case Object: |
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368 return CiConstant.forObject(u.getObject(value, displacement)); |
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369 default: |
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370 assert false : "unexpected kind: " + this; |
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371 return null; |
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372 } |
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373 } |
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374 |
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changeset
|
375 } |