Mercurial > hg > truffle
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/parser/Parser.java @ 7530:5e3d1a68664e
applied mx eclipseformat to all Java files
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 23 Jan 2013 16:34:57 +0100 |
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1 /* |
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2 * Copyright (c) 2012, 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 |
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24 // The content of this file is automatically generated. DO NOT EDIT. |
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25 |
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26 package com.oracle.truffle.sl.parser; |
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27 |
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28 import java.util.*; |
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29 |
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30 import com.oracle.truffle.sl.*; |
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31 import com.oracle.truffle.sl.nodes.*; |
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32 |
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33 // Checkstyle: stop |
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34 // @formatter:off |
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35 public class Parser { |
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36 public static final int _EOF = 0; |
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37 public static final int _identifier = 1; |
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38 public static final int _stringLiteral = 2; |
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39 public static final int _numericLiteral = 3; |
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40 public static final int maxT = 25; |
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41 |
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42 static final boolean T = true; |
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43 static final boolean x = false; |
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44 static final int minErrDist = 2; |
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45 |
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46 public Token t; // last recognized token |
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47 public Token la; // lookahead token |
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48 int errDist = minErrDist; |
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49 |
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50 public final Scanner scanner; |
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51 public final Errors errors; |
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52 private final NodeFactory factory; |
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53 |
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54 public Parser(Scanner scanner, NodeFactory factory) { |
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55 this.scanner = scanner; |
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56 this.factory = factory; |
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57 errors = new Errors(); |
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58 } |
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59 |
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60 void SynErr(int n) { |
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61 if (errDist >= minErrDist) |
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62 errors.SynErr(la.line, la.col, n); |
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63 errDist = 0; |
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64 } |
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65 |
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66 public void SemErr(String msg) { |
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67 if (errDist >= minErrDist) |
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68 errors.SemErr(t.line, t.col, msg); |
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69 errDist = 0; |
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70 } |
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71 |
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72 void Get() { |
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73 for (;;) { |
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74 t = la; |
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75 la = scanner.Scan(); |
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76 if (la.kind <= maxT) { |
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77 ++errDist; |
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78 break; |
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79 } |
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80 |
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81 la = t; |
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82 } |
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83 } |
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84 |
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85 void Expect(int n) { |
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86 if (la.kind == n) |
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87 Get(); |
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88 else { |
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89 SynErr(n); |
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90 } |
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91 } |
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92 |
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93 boolean StartOf(int s) { |
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94 return set[s][la.kind]; |
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95 } |
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96 |
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97 void ExpectWeak(int n, int follow) { |
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98 if (la.kind == n) |
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99 Get(); |
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100 else { |
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101 SynErr(n); |
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102 while (!StartOf(follow)) |
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103 Get(); |
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104 } |
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105 } |
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106 |
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107 boolean WeakSeparator(int n, int syFol, int repFol) { |
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108 int kind = la.kind; |
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109 if (kind == n) { |
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110 Get(); |
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111 return true; |
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112 } else if (StartOf(repFol)) |
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113 return false; |
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114 else { |
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115 SynErr(n); |
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116 while (!(set[syFol][kind] || set[repFol][kind] || set[0][kind])) { |
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117 Get(); |
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118 kind = la.kind; |
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119 } |
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120 return StartOf(syFol); |
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121 } |
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122 } |
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123 |
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124 void SimpleLanguage() { |
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125 Function(); |
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126 while (la.kind == 4) { |
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127 Function(); |
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128 } |
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129 } |
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130 |
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131 void Function() { |
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132 Expect(4); |
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133 factory.startFunction(); |
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134 Expect(1); |
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135 String name = t.val; |
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136 StatementNode body = Block(); |
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137 factory.createFunction(body, name); |
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138 } |
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139 |
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140 StatementNode Block() { |
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141 StatementNode result; |
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142 List<StatementNode> statements = new ArrayList<>(); |
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143 Expect(5); |
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144 while (StartOf(1)) { |
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145 StatementNode statement = Statement(); |
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146 statements.add(statement); |
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147 } |
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148 Expect(6); |
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149 result = factory.createBlock(statements); |
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150 return result; |
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151 } |
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152 |
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153 StatementNode Statement() { |
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154 StatementNode result; |
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155 result = null; |
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156 if (la.kind == 7) { |
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157 result = WhileStatement(); |
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158 } else if (la.kind == 1) { |
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159 result = AssignmentStatement(); |
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160 } else if (la.kind == 12) { |
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161 result = OutputStatement(); |
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162 } else if (la.kind == 13) { |
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163 result = ReturnStatement(); |
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164 } else SynErr(26); |
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165 return result; |
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166 } |
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167 |
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168 StatementNode WhileStatement() { |
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169 StatementNode result; |
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170 Expect(7); |
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171 Expect(8); |
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172 ConditionNode condition = Expression(); |
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173 Expect(9); |
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174 StatementNode body = Block(); |
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175 result = factory.createWhile(condition, body); |
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176 return result; |
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177 } |
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178 |
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179 StatementNode AssignmentStatement() { |
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180 StatementNode result; |
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181 Expect(1); |
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182 String name = t.val; |
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183 Expect(10); |
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184 TypedNode rvalue = Expression(); |
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185 Expect(11); |
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186 result = factory.createAssignment(name, rvalue); |
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187 return result; |
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188 } |
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189 |
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|
190 StatementNode OutputStatement() { |
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191 StatementNode result; |
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192 List<TypedNode> expressions = new ArrayList<>(); |
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193 Expect(12); |
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|
194 while (StartOf(2)) { |
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195 TypedNode value = Expression(); |
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196 expressions.add(value); |
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197 } |
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198 Expect(11); |
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199 result = factory.createPrint(expressions); |
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200 return result; |
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parents:
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|
201 } |
213c1297a814
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
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|
202 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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changeset
|
203 StatementNode ReturnStatement() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
diff
changeset
|
204 StatementNode result; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
205 Expect(13); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
diff
changeset
|
206 TypedNode value = Expression(); |
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|
207 Expect(11); |
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208 result = factory.createReturn(value); |
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209 return result; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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|
210 } |
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parents:
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changeset
|
211 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
212 TypedNode Expression() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
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|
213 TypedNode result; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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|
214 result = ValueExpression(); |
213c1297a814
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
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|
215 if (StartOf(3)) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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|
216 switch (la.kind) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
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|
217 case 14: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
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|
218 Get(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
219 break; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
220 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
221 case 15: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
222 Get(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
223 break; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
224 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
225 case 16: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
226 Get(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
227 break; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
228 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
229 case 17: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
230 Get(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
231 break; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
232 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
233 case 18: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
234 Get(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
235 break; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
236 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
237 case 19: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
238 Get(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
239 break; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
240 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
241 } |
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diff
changeset
|
242 String op = t.val; |
7292
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
243 TypedNode right = ValueExpression(); |
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Updated truffle-sl for the changed operation code generation.
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|
244 result = factory.createBinary(op, result, right); |
7292
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
diff
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|
245 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
246 return result; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
247 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
248 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
249 TypedNode ValueExpression() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
250 TypedNode result; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
251 result = Term(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
252 while (la.kind == 20 || la.kind == 21) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
253 if (la.kind == 20) { |
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254 Get(); |
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|
255 } else { |
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parents:
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|
256 Get(); |
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257 } |
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258 String op = t.val; |
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259 TypedNode right = Term(); |
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260 result = factory.createBinary(op, result, right); |
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261 } |
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parents:
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|
262 return result; |
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parents:
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|
263 } |
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parents:
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|
264 |
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|
265 TypedNode Term() { |
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266 TypedNode result; |
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267 result = Factor(); |
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parents:
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268 while (la.kind == 22 || la.kind == 23) { |
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269 if (la.kind == 22) { |
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parents:
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270 Get(); |
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|
271 } else { |
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parents:
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|
272 Get(); |
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273 } |
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274 String op = t.val; |
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275 TypedNode right = Factor(); |
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276 result = factory.createBinary(op, result, right); |
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277 } |
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parents:
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278 return result; |
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parents:
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|
279 } |
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280 |
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|
281 TypedNode Factor() { |
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282 TypedNode result; |
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283 result = null; |
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284 if (la.kind == 24) { |
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285 result = TimeRef(); |
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286 } else if (la.kind == 1) { |
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287 result = VariableRef(); |
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288 } else if (la.kind == 2) { |
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289 result = StringLiteral(); |
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290 } else if (la.kind == 3) { |
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291 result = NumericLiteral(); |
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292 } else if (la.kind == 8) { |
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|
293 Get(); |
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|
294 result = Expression(); |
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|
295 Expect(9); |
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|
296 } else SynErr(27); |
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parents:
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|
297 return result; |
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parents:
diff
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|
298 } |
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parents:
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|
299 |
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parents:
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|
300 TypedNode TimeRef() { |
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parents:
diff
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|
301 TypedNode result; |
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diff
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|
302 Expect(24); |
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303 result = factory.createTime(); |
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304 return result; |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
305 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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|
306 |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
307 TypedNode VariableRef() { |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
308 TypedNode result; |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
309 Expect(1); |
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310 result = factory.createLocal(t.val); |
7292
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parents:
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311 return result; |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
312 } |
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parents:
diff
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|
313 |
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parents:
diff
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|
314 TypedNode StringLiteral() { |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
315 TypedNode result; |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
316 Expect(2); |
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|
317 result = factory.createStringLiteral(t.val.substring(1, t.val.length() - 1)); |
7292
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parents:
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|
318 return result; |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
319 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
320 |
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parents:
diff
changeset
|
321 TypedNode NumericLiteral() { |
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parents:
diff
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|
322 TypedNode result; |
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parents:
diff
changeset
|
323 Expect(3); |
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|
324 result = factory.createNumericLiteral(t.val); |
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parents:
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|
325 return result; |
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
326 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
327 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
328 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
329 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
330 public void Parse() { |
213c1297a814
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
331 la = new Token(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
332 la.val = ""; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
333 Get(); |
213c1297a814
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
334 SimpleLanguage(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
335 Expect(0); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
336 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
337 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
338 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
339 private static final boolean[][] set = { |
213c1297a814
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parents:
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|
340 {T,x,x,x, x,x,x,x, x,x,x,x, x,x,x,x, x,x,x,x, x,x,x,x, x,x,x}, |
213c1297a814
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parents:
diff
changeset
|
341 {x,T,x,x, x,x,x,T, x,x,x,x, T,T,x,x, x,x,x,x, x,x,x,x, x,x,x}, |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
342 {x,T,T,T, x,x,x,x, T,x,x,x, x,x,x,x, x,x,x,x, x,x,x,x, T,x,x}, |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
343 {x,x,x,x, x,x,x,x, x,x,x,x, x,x,T,T, T,T,T,T, x,x,x,x, x,x,x} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
344 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
345 }; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
346 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
347 public String ParseErrors() { |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
348 java.io.PrintStream oldStream = System.out; |
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parents:
diff
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|
349 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
350 java.io.OutputStream out = new java.io.ByteArrayOutputStream(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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|
351 java.io.PrintStream newStream = new java.io.PrintStream(out); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
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parents:
diff
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|
352 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
353 errors.errorStream = newStream; |
213c1297a814
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parents:
diff
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|
354 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
355 Parse(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
356 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
357 String errorStream = out.toString(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
358 errors.errorStream = oldStream; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
359 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
360 return errorStream; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
361 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
362 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
363 } // end Parser |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
364 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
365 class Errors { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
366 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
367 public int count = 0; // number of errors detected |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
368 public java.io.PrintStream errorStream = System.out; // error messages go to this stream |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
369 public String errMsgFormat = "-- line {0} col {1}: {2}"; // 0=line, 1=column, 2=text |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
370 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
371 protected void printMsg(int line, int column, String msg) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
372 StringBuffer b = new StringBuffer(errMsgFormat); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
373 int pos = b.indexOf("{0}"); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
374 if (pos >= 0) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
375 b.delete(pos, pos + 3); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
376 b.insert(pos, line); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
377 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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378 pos = b.indexOf("{1}"); |
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379 if (pos >= 0) { |
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380 b.delete(pos, pos + 3); |
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381 b.insert(pos, column); |
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382 } |
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383 pos = b.indexOf("{2}"); |
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384 if (pos >= 0) |
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385 b.replace(pos, pos + 3, msg); |
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386 errorStream.println(b.toString()); |
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387 } |
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388 |
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389 public void SynErr(int line, int col, int n) { |
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390 String s; |
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391 switch (n) { |
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392 case 0: s = "EOF expected"; break; |
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393 case 1: s = "identifier expected"; break; |
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394 case 2: s = "stringLiteral expected"; break; |
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395 case 3: s = "numericLiteral expected"; break; |
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396 case 4: s = "\"function\" expected"; break; |
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397 case 5: s = "\"{\" expected"; break; |
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398 case 6: s = "\"}\" expected"; break; |
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399 case 7: s = "\"while\" expected"; break; |
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400 case 8: s = "\"(\" expected"; break; |
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401 case 9: s = "\")\" expected"; break; |
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402 case 10: s = "\"=\" expected"; break; |
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403 case 11: s = "\";\" expected"; break; |
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404 case 12: s = "\"print\" expected"; break; |
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405 case 13: s = "\"return\" expected"; break; |
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406 case 14: s = "\"<\" expected"; break; |
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407 case 15: s = "\">\" expected"; break; |
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408 case 16: s = "\"<=\" expected"; break; |
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409 case 17: s = "\">=\" expected"; break; |
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410 case 18: s = "\"==\" expected"; break; |
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411 case 19: s = "\"!=\" expected"; break; |
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412 case 20: s = "\"+\" expected"; break; |
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413 case 21: s = "\"-\" expected"; break; |
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414 case 22: s = "\"*\" expected"; break; |
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415 case 23: s = "\"/\" expected"; break; |
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416 case 24: s = "\"time\" expected"; break; |
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417 case 25: s = "??? expected"; break; |
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418 case 26: s = "invalid Statement"; break; |
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419 case 27: s = "invalid Factor"; break; |
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420 default: |
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421 s = "error " + n; |
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422 break; |
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423 } |
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424 printMsg(line, col, s); |
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425 count++; |
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426 } |
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427 |
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428 public void SemErr(int line, int col, String s) { |
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429 printMsg(line, col, s); |
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430 count++; |
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431 } |
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432 |
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433 public void SemErr(String s) { |
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434 errorStream.println(s); |
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435 count++; |
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436 } |
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437 |
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438 public void Warning(int line, int col, String s) { |
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439 printMsg(line, col, s); |
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440 } |
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441 |
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442 public void Warning(String s) { |
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443 errorStream.println(s); |
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444 } |
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445 } // Errors |
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446 |
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447 class FatalError extends RuntimeException { |
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448 |
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449 public static final long serialVersionUID = 1L; |
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450 |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
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451 public FatalError(String s) { |
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452 super(s); |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
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453 } |
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454 } |