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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/model/ParameterSpec.java @ 20940:476374f3fe9a

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Truffle-DSL: generate better polymorphic execute signatures
author Christian Humer <christian.humer@gmail.com>
date Tue, 14 Apr 2015 15:12:48 +0200
parents 18c0f02fa4d2
children 6361fa2e3321
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.dsl.processor.model;
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25 import java.util.*;
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26
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27 import javax.lang.model.element.*;
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28 import javax.lang.model.type.*;
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29
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30 import com.oracle.truffle.dsl.processor.*;
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31 import com.oracle.truffle.dsl.processor.java.*;
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32 import com.oracle.truffle.dsl.processor.model.MethodSpec.TypeDef;
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33
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34 public class ParameterSpec {
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35
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36 private final String name;
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37 private final Collection<TypeMirror> allowedTypes;
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38 private final boolean anyType;
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39
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40 /** Type is bound to local final variable. */
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41 private boolean local;
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42 private boolean signature;
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43 private boolean allowSubclasses = true;
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44
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45 /** Optional bound execution of node. */
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46 private NodeExecutionData execution;
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47 private TypeDef typeDefinition;
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48
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49 public ParameterSpec(String name, Collection<TypeMirror> allowedTypes) {
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50 this.name = name;
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51 this.allowedTypes = allowedTypes;
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52 boolean anyTypeTemp = false;
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53 for (TypeMirror type : allowedTypes) {
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54 if (ElementUtils.isObject(type)) {
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55 anyTypeTemp = true;
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56 break;
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57 }
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58 }
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59 this.anyType = anyTypeTemp;
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60 }
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61
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62 public ParameterSpec(ParameterSpec original, TypeMirror newType) {
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63 this(original.name, newType);
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64 this.local = original.local;
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65 this.signature = original.signature;
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66 this.execution = original.execution;
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67 this.typeDefinition = original.typeDefinition;
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68 this.allowSubclasses = original.allowSubclasses;
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69 }
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70
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71 public ParameterSpec(String name, TypeMirror type) {
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72 this(name, Arrays.asList(type));
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73 }
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74
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75 public void setAllowSubclasses(boolean allowSubclasses) {
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76 this.allowSubclasses = allowSubclasses;
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77 }
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78
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79 public NodeExecutionData getExecution() {
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80 return execution;
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81 }
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82
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83 public void setExecution(NodeExecutionData executionData) {
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84 this.execution = executionData;
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85 this.signature = execution != null;
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86 }
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87
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88 public void setSignature(boolean signature) {
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89 this.signature = signature;
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90 }
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91
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92 void setTypeDefinition(TypeDef typeDefinition) {
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93 this.typeDefinition = typeDefinition;
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94 }
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95
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96 TypeDef getTypeDefinition() {
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97 return typeDefinition;
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98 }
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99
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100 public void setLocal(boolean local) {
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101 this.local = local;
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102 }
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103
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104 public boolean isSignature() {
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105 return signature;
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106 }
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107
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108 public boolean isLocal() {
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109 return local;
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110 }
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112 public String getName() {
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113 return name;
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114 }
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115
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116 public Collection<TypeMirror> getAllowedTypes() {
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117 return allowedTypes;
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118 }
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119
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120 public boolean matches(VariableElement variable) {
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121 if (anyType) {
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122 return true;
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123 } else {
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124 for (TypeMirror type : allowedTypes) {
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125 if (ElementUtils.typeEquals(variable.asType(), type)) {
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126 return true;
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127 }
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128 }
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129 if (allowSubclasses) {
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130 for (TypeMirror type : allowedTypes) {
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131 if (ElementUtils.isSubtypeBoxed(ProcessorContext.getInstance(), variable.asType(), type)) {
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132 return true;
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133 }
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134 }
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135 }
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136 }
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137 return false;
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138 }
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139
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140 @Override
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141 public String toString() {
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142 return toSignatureString(false);
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143 }
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144
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145 public String toSignatureString(boolean typeOnly) {
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146 StringBuilder builder = new StringBuilder();
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147 if (typeDefinition != null) {
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148 builder.append("<" + typeDefinition.getName() + ">");
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149 } else if (getAllowedTypes().size() >= 1) {
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150 builder.append(ElementUtils.getSimpleName(getAllowedTypes().iterator().next()));
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151 } else {
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152 builder.append("void");
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153 }
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154 if (!typeOnly) {
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155 builder.append(" ");
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156 builder.append(getName());
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157 }
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158 return builder.toString();
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159 }
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160
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161 }