Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.cri/src/com/sun/cri/ci/CiKind.java @ 4181:319860ae697a
Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary.
author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
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date | Mon, 02 Jan 2012 14:16:08 -0800 |
parents | e233f5660da4 |
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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.sun.cri.ci; |
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24 |
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25 import static com.sun.cri.ci.CiKind.Flags.*; |
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26 import sun.misc.*; |
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27 |
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28 import com.sun.cri.ri.*; |
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29 |
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30 /** |
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31 * Denotes the basic kinds of types in CRI, including the all the Java primitive types, |
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32 * for example, {@link CiKind#Int} for {@code int} and {@link CiKind#Object} |
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33 * for all object types. |
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34 * A kind has a single character short name, a Java name, and a set of flags |
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35 * further describing its behavior. |
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36 */ |
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37 public enum CiKind { |
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38 Boolean('z', "boolean", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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39 Byte ('b', "byte", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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40 Short ('s', "short", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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41 Char ('c', "char", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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42 Int ('i', "int", FIELD_TYPE | RETURN_TYPE | PRIMITIVE | STACK_INT), |
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43 Float ('f', "float", FIELD_TYPE | RETURN_TYPE | PRIMITIVE), |
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44 Long ('j', "long", FIELD_TYPE | RETURN_TYPE | PRIMITIVE), |
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45 Double ('d', "double", FIELD_TYPE | RETURN_TYPE | PRIMITIVE), |
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46 Object ('a', "Object", FIELD_TYPE | RETURN_TYPE), |
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47 Void ('v', "void", RETURN_TYPE), |
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48 /** Denote a bytecode address in a {@code JSR} bytecode. */ |
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49 Jsr ('r', "jsr", 0), |
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50 /** The non-type. */ |
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51 Illegal('-', "illegal", 0); |
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52 |
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53 public static final CiKind[] VALUES = values(); |
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54 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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55 |
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56 CiKind(char ch, String name, int flags) { |
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57 this.typeChar = ch; |
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58 this.javaName = name; |
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59 this.flags = flags; |
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60 } |
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61 |
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62 static class Flags { |
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63 /** |
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64 * Can be an object field type. |
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65 */ |
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66 public static final int FIELD_TYPE = 0x0001; |
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67 /** |
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68 * Can be result type of a method. |
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69 */ |
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70 public static final int RETURN_TYPE = 0x0002; |
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71 /** |
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72 * Behaves as an integer when on Java evaluation stack. |
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73 */ |
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74 public static final int STACK_INT = 0x0004; |
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75 /** |
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76 * Represents a Java primitive type. |
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77 */ |
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78 public static final int PRIMITIVE = 0x0008; |
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79 } |
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80 |
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81 /** |
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82 * The flags for this kind. |
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83 */ |
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84 private final int flags; |
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85 |
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86 /** |
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87 * The name of the kind as a single character. |
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88 */ |
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89 public final char typeChar; |
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90 |
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91 /** |
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92 * The name of this kind which will also be it Java programming language name if |
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93 * it is {@linkplain #isPrimitive() primitive} or {@code void}. |
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94 */ |
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95 public final String javaName; |
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96 |
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97 /** |
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98 * Checks whether this kind is valid as the type of a field. |
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99 * @return {@code true} if this kind is valid as the type of a Java field |
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100 */ |
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101 public boolean isValidFieldType() { |
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102 return (flags & FIELD_TYPE) != 0; |
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103 } |
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104 |
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105 /** |
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106 * Checks whether this kind is valid as the return type of a method. |
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107 * @return {@code true} if this kind is valid as the return type of a Java method |
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108 */ |
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109 public boolean isValidReturnType() { |
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110 return (flags & RETURN_TYPE) != 0; |
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111 } |
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112 |
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113 /** |
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114 * Checks whether this type is valid as an {@code int} on the Java operand stack. |
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115 * @return {@code true} if this type is represented by an {@code int} on the operand stack |
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116 */ |
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117 public boolean isInt() { |
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118 return (flags & STACK_INT) != 0; |
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119 } |
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120 |
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121 /** |
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122 * Checks whether this type is a Java primitive type. |
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123 * @return {@code true} if this is {@link #Boolean}, {@link #Byte}, {@link #Char}, {@link #Short}, |
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124 * {@link #Int}, {@link #Long}, {@link #Float} or {@link #Double}. |
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125 */ |
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126 public boolean isPrimitive() { |
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127 return (flags & PRIMITIVE) != 0; |
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128 } |
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129 |
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130 /** |
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131 * Gets the kind that represents this kind when on the Java operand stack. |
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132 * @return the kind used on the operand stack |
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133 */ |
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134 public CiKind stackKind() { |
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135 if (isInt()) { |
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136 return Int; |
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137 } |
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138 return this; |
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139 } |
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140 |
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141 public static CiKind fromTypeString(String typeString) { |
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142 assert typeString.length() > 0; |
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143 final char first = typeString.charAt(0); |
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144 if (first == '[' || first == 'L') { |
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145 return CiKind.Object; |
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146 } |
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147 return CiKind.fromPrimitiveOrVoidTypeChar(first); |
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148 } |
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149 |
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150 /** |
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151 * Gets the kind from the character describing a primitive or void. |
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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 CiKind fromPrimitiveOrVoidTypeChar(char ch) { |
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156 // Checkstyle: stop |
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157 switch (ch) { |
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158 case 'Z': return Boolean; |
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159 case 'C': return Char; |
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160 case 'F': return Float; |
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161 case 'D': return Double; |
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162 case 'B': return Byte; |
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163 case 'S': return Short; |
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164 case 'I': return Int; |
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165 case 'J': return Long; |
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166 case 'V': return Void; |
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167 } |
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168 // Checkstyle: resume |
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169 throw new IllegalArgumentException("unknown primitive or void type character: " + ch); |
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170 } |
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171 |
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172 public Class< ? > toJavaClass() { |
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173 // Checkstyle: stop |
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174 switch(this) { |
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175 case Void: return java.lang.Void.TYPE; |
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176 case Long: return java.lang.Long.TYPE; |
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177 case Int: return java.lang.Integer.TYPE; |
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178 case Byte: return java.lang.Byte.TYPE; |
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179 case Char: return java.lang.Character.TYPE; |
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180 case Double: return java.lang.Double.TYPE; |
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181 case Float: return java.lang.Float.TYPE; |
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182 case Short: return java.lang.Short.TYPE; |
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183 case Boolean: return java.lang.Boolean.TYPE; |
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184 default: return null; |
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185 } |
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186 // Checkstyle: resume |
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187 } |
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188 |
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189 public Class< ? > toUnboxedJavaClass() { |
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190 // Checkstyle: stop |
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191 switch(this) { |
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192 case Void: return null; |
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193 case Long: return java.lang.Long.class; |
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194 case Int: return java.lang.Integer.class; |
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195 case Byte: return java.lang.Byte.class; |
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196 case Char: return java.lang.Character.class; |
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197 case Double: return java.lang.Double.class; |
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198 case Float: return java.lang.Float.class; |
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199 case Short: return java.lang.Short.class; |
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200 case Boolean: return java.lang.Boolean.class; |
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201 default: return null; |
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|
202 } |
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203 // Checkstyle: resume |
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204 } |
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205 |
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|
206 /** |
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|
207 * Checks whether this value type is void. |
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208 * @return {@code true} if this type is void |
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|
209 */ |
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210 public final boolean isVoid() { |
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211 return this == CiKind.Void; |
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|
212 } |
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|
213 |
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|
214 /** |
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|
215 * Checks whether this value type is long. |
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|
216 * @return {@code true} if this type is long |
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|
217 */ |
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|
218 public final boolean isLong() { |
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219 return this == CiKind.Long; |
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220 } |
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|
221 |
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|
222 /** |
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|
223 * Checks whether this value type is float. |
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|
224 * @return {@code true} if this type is float |
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|
225 */ |
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|
226 public final boolean isFloat() { |
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|
227 return this == CiKind.Float; |
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|
228 } |
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229 |
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|
230 /** |
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|
231 * Checks whether this value type is double. |
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|
232 * @return {@code true} if this type is double |
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diff
changeset
|
233 */ |
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|
234 public final boolean isDouble() { |
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|
235 return this == CiKind.Double; |
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|
236 } |
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|
237 |
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|
238 /** |
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|
239 * Checks whether this value type is float or double. |
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|
240 * @return {@code true} if this type is float or double |
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parents:
diff
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|
241 */ |
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|
242 public final boolean isFloatOrDouble() { |
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|
243 return this == CiKind.Double || this == CiKind.Float; |
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|
244 } |
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|
245 |
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parents:
diff
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|
246 /** |
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|
247 * Checks whether this value type is an object type. |
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|
248 * @return {@code true} if this type is an object |
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|
249 */ |
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250 public final boolean isObject() { |
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251 return this == CiKind.Object; |
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252 } |
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253 |
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254 /** |
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255 * Checks whether this value type is an address type. |
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256 * @return {@code true} if this type is an address |
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257 */ |
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258 public boolean isJsr() { |
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259 return this == CiKind.Jsr; |
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260 } |
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261 |
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262 /** |
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263 * Converts this value type to a string. |
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264 */ |
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265 @Override |
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266 public String toString() { |
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267 return javaName; |
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268 } |
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269 |
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270 /** |
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271 * Marker interface for types that should be {@linkplain CiKind#format(Object) formatted} |
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272 * with their {@link Object#toString()} value. |
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273 */ |
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274 public interface FormatWithToString {} |
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275 |
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276 /** |
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277 * Gets a formatted string for a given value of this kind. |
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278 * |
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279 * @param value a value of this kind |
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280 * @return a formatted string for {@code value} based on this kind |
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281 */ |
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282 public String format(Object value) { |
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283 if (isObject()) { |
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284 if (value == null) { |
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285 return "null"; |
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286 } else { |
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287 if (value instanceof String) { |
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288 String s = (String) value; |
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289 if (s.length() > 50) { |
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290 return "\"" + s.substring(0, 30) + "...\""; |
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291 } else { |
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292 return " \"" + s + '"'; |
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293 } |
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294 } else if (value instanceof RiType) { |
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295 return "class " + CiUtil.toJavaName((RiType) value); |
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296 } else if (value instanceof Enum || value instanceof FormatWithToString) { |
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297 return String.valueOf(value); |
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298 } else if (value instanceof Class< ? >) { |
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299 return ((Class< ? >) value).getName() + ".class"; |
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300 } else { |
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301 return CiUtil.getSimpleName(value.getClass(), true) + "@" + System.identityHashCode(value); |
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302 } |
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303 } |
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304 } else { |
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305 return value.toString(); |
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306 } |
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307 } |
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308 |
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309 public final char signatureChar() { |
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310 return Character.toUpperCase(typeChar); |
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311 } |
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312 |
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313 public CiConstant readUnsafeConstant(Object value, long displacement) { |
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314 Unsafe u = Unsafe.getUnsafe(); |
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315 switch(this) { |
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316 case Boolean: |
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317 return CiConstant.forBoolean(u.getBoolean(value, displacement)); |
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318 case Byte: |
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319 return CiConstant.forByte(u.getByte(value, displacement)); |
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320 case Char: |
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321 return CiConstant.forChar(u.getChar(value, displacement)); |
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322 case Short: |
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323 return CiConstant.forShort(u.getShort(value, displacement)); |
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324 case Int: |
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325 return CiConstant.forInt(u.getInt(value, displacement)); |
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326 case Long: |
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327 return CiConstant.forLong(u.getLong(value, displacement)); |
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328 case Float: |
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329 return CiConstant.forFloat(u.getFloat(value, displacement)); |
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330 case Double: |
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331 return CiConstant.forDouble(u.getDouble(value, displacement)); |
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332 case Object: |
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333 return CiConstant.forObject(u.getObject(value, displacement)); |
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334 default: |
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335 assert false : "unexpected kind: " + this; |
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336 return null; |
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337 } |
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338 } |
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339 |
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340 } |