Mercurial > hg > graal-compiler

annotate graal/com.oracle.max.cri/src/com/sun/cri/ci/CiKind.java @ 3733:e233f5660da4

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Added Java files from Maxine project.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 17 Dec 2011 19:59:18 +0100
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3733
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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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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
139 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
140
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
141 public static CiKind fromTypeString(String typeString) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
142 assert typeString.length() > 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
143 final char first = typeString.charAt(0);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
144 if (first == '[' || first == 'L') {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
145 return CiKind.Object;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
146 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
147 return CiKind.fromPrimitiveOrVoidTypeChar(first);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
148 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
149
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
150 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
151 * Gets the kind from the character describing a primitive or void.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
152 * @param ch the character
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
153 * @return the kind
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
154 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
155 public static CiKind fromPrimitiveOrVoidTypeChar(char ch) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
156 // Checkstyle: stop
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
157 switch (ch) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
158 case 'Z': return Boolean;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
159 case 'C': return Char;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
160 case 'F': return Float;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
161 case 'D': return Double;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
162 case 'B': return Byte;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
163 case 'S': return Short;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
164 case 'I': return Int;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
165 case 'J': return Long;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
166 case 'V': return Void;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
167 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
168 // Checkstyle: resume
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
169 throw new IllegalArgumentException("unknown primitive or void type character: " + ch);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
170 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
171
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
172 public Class< ? > toJavaClass() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
173 // Checkstyle: stop
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
174 switch(this) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
175 case Void: return java.lang.Void.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
176 case Long: return java.lang.Long.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
177 case Int: return java.lang.Integer.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
178 case Byte: return java.lang.Byte.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
179 case Char: return java.lang.Character.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
180 case Double: return java.lang.Double.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
181 case Float: return java.lang.Float.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
182 case Short: return java.lang.Short.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
183 case Boolean: return java.lang.Boolean.TYPE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
184 default: return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
185 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
186 // Checkstyle: resume
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
187 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
188
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
189 public Class< ? > toUnboxedJavaClass() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
190 // Checkstyle: stop
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
191 switch(this) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
192 case Void: return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
193 case Long: return java.lang.Long.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
194 case Int: return java.lang.Integer.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
195 case Byte: return java.lang.Byte.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
196 case Char: return java.lang.Character.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
197 case Double: return java.lang.Double.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
198 case Float: return java.lang.Float.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
199 case Short: return java.lang.Short.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
200 case Boolean: return java.lang.Boolean.class;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
201 default: return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
202 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
203 // Checkstyle: resume
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
204 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
205
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
206 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
207 * Checks whether this value type is void.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
208 * @return {@code true} if this type is void
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
209 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
210 public final boolean isVoid() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
211 return this == CiKind.Void;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
212 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
213
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
214 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
215 * Checks whether this value type is long.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
216 * @return {@code true} if this type is long
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
217 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
218 public final boolean isLong() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
219 return this == CiKind.Long;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
220 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
221
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
222 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 * Checks whether this value type is float.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
224 * @return {@code true} if this type is float
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
225 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
226 public final boolean isFloat() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
227 return this == CiKind.Float;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
228 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
229
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
230 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
231 * Checks whether this value type is double.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
232 * @return {@code true} if this type is double
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
233 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
234 public final boolean isDouble() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
235 return this == CiKind.Double;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
236 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
237
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
238 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
239 * Checks whether this value type is float or double.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
240 * @return {@code true} if this type is float or double
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
241 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
242 public final boolean isFloatOrDouble() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
243 return this == CiKind.Double || this == CiKind.Float;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
244 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
245
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
246 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
247 * Checks whether this value type is an object type.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
248 * @return {@code true} if this type is an object
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
249 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
250 public final boolean isObject() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
251 return this == CiKind.Object;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
252 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
253
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
254 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
255 * Checks whether this value type is an address type.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
256 * @return {@code true} if this type is an address
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
257 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
258 public boolean isJsr() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
259 return this == CiKind.Jsr;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
260 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
261
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
262 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
263 * Converts this value type to a string.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
264 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
265 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
266 public String toString() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
267 return javaName;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
268 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
269
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
270 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
271 * Marker interface for types that should be {@linkplain CiKind#format(Object) formatted}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
272 * with their {@link Object#toString()} value.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
273 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
274 public interface FormatWithToString {}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
275
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
276 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
277 * Gets a formatted string for a given value of this kind.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
278 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
279 * @param value a value of this kind
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
280 * @return a formatted string for {@code value} based on this kind
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
281 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
282 public String format(Object value) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
283 if (isObject()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
284 if (value == null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
285 return "null";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
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 }