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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/expression/DSLExpression.java @ 19348:ef292a5bb79d

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Truffle-DSL: fix findbugs comparison warnings.
author Christian Humer <christian.humer@gmail.com>
date Fri, 13 Feb 2015 11:37:13 +0100
parents 244f1b50be4c
children
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1 /*
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2 * Copyright (c) 2015, 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.expression;
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24
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25 import java.util.*;
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26 import java.util.concurrent.atomic.*;
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27
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28 import javax.lang.model.element.*;
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29 import javax.lang.model.type.*;
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30
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31 public abstract class DSLExpression {
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32
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33 private TypeMirror resolvedTargetType;
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34
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35 private DSLExpression() {
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36 }
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37
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38 public static DSLExpression parse(String input) {
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39 return Parser.parse(input);
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40 }
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41
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42 public final Set<VariableElement> findBoundVariableElements() {
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43 final Set<VariableElement> variables = new HashSet<>();
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44 this.accept(new AbstractDSLExpressionVisitor() {
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45
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46 @Override
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47 public void visitVariable(Variable variable) {
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48 if (variable.getReceiver() == null) {
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49 variables.add(variable.getResolvedVariable());
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50 }
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51 }
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52
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53 });
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54 return variables;
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55 }
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56
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57 public final Set<Variable> findBoundVariables() {
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58 final Set<Variable> variables = new HashSet<>();
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59 this.accept(new AbstractDSLExpressionVisitor() {
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60
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61 @Override
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62 public void visitVariable(Variable variable) {
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63 if (variable.getReceiver() == null) {
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64 variables.add(variable);
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65 }
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66 }
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67
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68 });
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69 return variables;
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70 }
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71
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72 public boolean containsComparisons() {
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73 final AtomicBoolean found = new AtomicBoolean();
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74 this.accept(new AbstractDSLExpressionVisitor() {
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75 @Override
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76 public void visitBinary(Binary binary) {
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77 if (binary.isComparison()) {
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78 found.set(true);
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79 }
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80 }
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81 });
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82 return found.get();
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83 }
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84
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85 public void setResolvedTargetType(TypeMirror resolvedTargetType) {
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86 this.resolvedTargetType = resolvedTargetType;
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87 }
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88
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89 public TypeMirror getResolvedTargetType() {
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90 return resolvedTargetType;
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91 }
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92
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93 public abstract TypeMirror getResolvedType();
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94
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95 public abstract void accept(DSLExpressionVisitor visitor);
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96
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97 public static final class Negate extends DSLExpression {
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98
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99 private final DSLExpression receiver;
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100
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101 public Negate(DSLExpression receiver) {
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102 this.receiver = receiver;
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103 }
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104
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105 @Override
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106 public void accept(DSLExpressionVisitor visitor) {
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107 receiver.accept(visitor);
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108 visitor.visitNegate(this);
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109 }
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110
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111 public DSLExpression getReceiver() {
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112 return receiver;
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113 }
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114
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115 @Override
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116 public TypeMirror getResolvedType() {
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117 return receiver.getResolvedType();
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118 }
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119
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120 @Override
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121 public boolean equals(Object obj) {
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122 if (obj instanceof Negate) {
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123 return receiver.equals(((Negate) obj).receiver);
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124 }
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125 return false;
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126 }
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127
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128 @Override
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129 public int hashCode() {
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130 return receiver.hashCode();
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131 }
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132 }
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133
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134 public static final class Binary extends DSLExpression {
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135
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136 private final String operator;
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137 private final DSLExpression left;
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138 private final DSLExpression right;
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139
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140 private TypeMirror resolvedType;
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141
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142 public Binary(String operator, DSLExpression left, DSLExpression right) {
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143 this.operator = operator;
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144 this.left = left;
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145 this.right = right;
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146 }
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147
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148 public boolean isComparison() {
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149 return DSLExpressionResolver.COMPARABLE_OPERATORS.contains(operator) || DSLExpressionResolver.IDENTITY_OPERATORS.contains(operator);
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150 }
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151
19283
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152 @Override
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153 public boolean equals(Object obj) {
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154 if (obj instanceof Binary) {
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155 Binary other = (Binary) obj;
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156 return operator.equals(other.operator) && left.equals(other.left) && right.equals(other.right);
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157 }
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158 return false;
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159 }
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160
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161 @Override
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162 public int hashCode() {
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163 return Objects.hash(operator, left, right);
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164 }
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165
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166 public String getOperator() {
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167 return operator;
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168 }
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169
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170 public DSLExpression getLeft() {
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171 return left;
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172 }
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173
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174 public DSLExpression getRight() {
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175 return right;
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176 }
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177
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178 @Override
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179 public void accept(DSLExpressionVisitor visitor) {
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180 left.accept(visitor);
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181 right.accept(visitor);
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182 visitor.visitBinary(this);
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183 }
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184
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185 @Override
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186 public TypeMirror getResolvedType() {
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187 return resolvedType;
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188 }
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189
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190 public void setResolvedType(TypeMirror resolvedType) {
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191 this.resolvedType = resolvedType;
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192 }
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193
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194 @Override
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195 public String toString() {
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196 return "Binary [left=" + left + ", operator=" + operator + ", right=" + right + ", resolvedType=" + resolvedType + "]";
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197 }
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198
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199 }
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200
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201 public static final class Call extends DSLExpression {
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202
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203 private final DSLExpression receiver;
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204 private final String name;
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205 private final List<DSLExpression> parameters;
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206
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207 private ExecutableElement resolvedMethod;
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208
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209 public Call(DSLExpression receiver, String name, List<DSLExpression> parameters) {
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210 this.receiver = receiver;
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211 this.name = name;
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212 this.parameters = parameters;
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213 }
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214
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215 @Override
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216 public boolean equals(Object obj) {
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217 if (obj instanceof Call) {
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218 Call other = (Call) obj;
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219 return Objects.equals(receiver, other.receiver) && name.equals(other.name) && parameters.equals(other.parameters);
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220 }
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221 return false;
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222 }
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223
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224 @Override
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225 public int hashCode() {
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226 return Objects.hash(receiver, name, parameters);
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227 }
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228
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229 public DSLExpression getReceiver() {
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230 return receiver;
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231 }
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232
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233 public String getName() {
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234 return name;
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235 }
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236
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237 public List<DSLExpression> getParameters() {
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238 return parameters;
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239 }
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240
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241 @Override
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242 public void accept(DSLExpressionVisitor visitor) {
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243 if (receiver != null) {
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244 receiver.accept(visitor);
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245 }
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246 for (DSLExpression parameter : getParameters()) {
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247 parameter.accept(visitor);
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248 }
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249 visitor.visitCall(this);
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250 }
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251
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252 @Override
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253 public TypeMirror getResolvedType() {
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254 if (resolvedMethod == null) {
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255 return null;
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256 }
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257 if (resolvedMethod.getKind() == ElementKind.CONSTRUCTOR) {
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258 return resolvedMethod.getEnclosingElement().asType();
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259 } else {
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260 return resolvedMethod.getReturnType();
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261 }
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262 }
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263
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264 public ExecutableElement getResolvedMethod() {
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265 return resolvedMethod;
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266 }
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267
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268 public void setResolvedMethod(ExecutableElement resolvedMethod) {
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269 this.resolvedMethod = resolvedMethod;
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270 }
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271
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272 @Override
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273 public String toString() {
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274 return "Call [receiver=" + receiver + ", name=" + name + ", parameters=" + parameters + ", resolvedMethod=" + resolvedMethod + "]";
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275 }
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276
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277 }
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278
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279 public static final class Variable extends DSLExpression {
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280
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281 private final DSLExpression receiver;
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282 private final String name;
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283
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284 private VariableElement resolvedVariable;
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285
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286 public Variable(DSLExpression receiver, String name) {
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287 this.receiver = receiver;
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288 this.name = name;
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289 }
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290
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291 @Override
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292 public boolean equals(Object obj) {
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293 if (obj instanceof Variable) {
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294 Variable other = (Variable) obj;
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295 return Objects.equals(receiver, other.receiver) && name.equals(other.name);
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296 }
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297 return false;
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298 }
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299
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300 @Override
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301 public int hashCode() {
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302 return Objects.hash(receiver, name);
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303 }
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304
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305 public DSLExpression getReceiver() {
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306 return receiver;
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307 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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308
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309 public String getName() {
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310 return name;
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311 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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312
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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313 @Override
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314 public void accept(DSLExpressionVisitor visitor) {
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Christian Humer <christian.humer@gmail.com>
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315 if (receiver != null) {
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316 receiver.accept(visitor);
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317 }
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Christian Humer <christian.humer@gmail.com>
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318 visitor.visitVariable(this);
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319 }
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320
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321 @Override
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322 public TypeMirror getResolvedType() {
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323 return resolvedVariable != null ? resolvedVariable.asType() : null;
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324 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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325
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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326 public void setResolvedVariable(VariableElement resolvedVariable) {
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327 this.resolvedVariable = resolvedVariable;
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328 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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329
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330 public VariableElement getResolvedVariable() {
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331 return resolvedVariable;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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332 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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333
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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334 @Override
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Christian Humer <christian.humer@gmail.com>
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335 public String toString() {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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336 return "Variable [receiver=" + receiver + ", name=" + name + ", resolvedVariable=" + resolvedVariable + "]";
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337 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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338
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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339 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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340
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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341 public static final class IntLiteral extends DSLExpression {
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Christian Humer <christian.humer@gmail.com>
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342
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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343 private final String literal;
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344
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Christian Humer <christian.humer@gmail.com>
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345 private int resolvedValueInt;
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Christian Humer <christian.humer@gmail.com>
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346 private TypeMirror resolvedType;
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347
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Christian Humer <christian.humer@gmail.com>
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348 public IntLiteral(String literal) {
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349 this.literal = literal;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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350 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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351
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
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352 @Override
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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353 public boolean equals(Object obj) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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354 if (obj instanceof IntLiteral) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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355 IntLiteral other = (IntLiteral) obj;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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356 return resolvedValueInt == other.resolvedValueInt;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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357 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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358 return false;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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359 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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360
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
361 @Override
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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362 public int hashCode() {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
363 return resolvedValueInt;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
364 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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365
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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366 public String getLiteral() {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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367 return literal;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
368 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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369
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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370 public int getResolvedValueInt() {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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371 return resolvedValueInt;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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372 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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373
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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374 public void setResolvedValueInt(int resolved) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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375 this.resolvedValueInt = resolved;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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376 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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377
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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378 @Override
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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379 public TypeMirror getResolvedType() {
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parents:
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380 return resolvedType;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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381 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
382
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
383 public void setResolvedType(TypeMirror resolvedType) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
384 this.resolvedType = resolvedType;
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
385 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
386
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
387 @Override
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
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388 public void accept(DSLExpressionVisitor visitor) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
389 visitor.visitIntLiteral(this);
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
390 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
391
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
392 @Override
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
393 public String toString() {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
394 return "IntLiteral [literal=" + literal + ", resolvedValueInt=" + resolvedValueInt + ", resolvedType=" + resolvedType + "]";
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
395 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
396
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
397 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
398
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
399 public abstract class AbstractDSLExpressionVisitor implements DSLExpressionVisitor {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
400
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
401 public void visitBinary(Binary binary) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
402 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
403
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
404 public void visitCall(Call binary) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
405 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
406
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
407 public void visitIntLiteral(IntLiteral binary) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
408 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
409
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
410 public void visitNegate(Negate negate) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
411 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
412
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
413 public void visitVariable(Variable binary) {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
414 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
415 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
416
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
417 public interface DSLExpressionVisitor {
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
418
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
419 void visitBinary(Binary binary);
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
420
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
421 void visitNegate(Negate negate);
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
422
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
423 void visitCall(Call binary);
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
424
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
425 void visitVariable(Variable binary);
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
426
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
427 void visitIntLiteral(IntLiteral binary);
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
428
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
429 }
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
430
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
431 }