Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/parser/Scanner.java @ 7292:213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Fri, 21 Dec 2012 10:45:37 -0800 |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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.io.InputStream; |
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29 import java.io.IOException; |
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30 import java.io.RandomAccessFile; |
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31 import java.util.Map; |
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32 import java.util.HashMap; |
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33 |
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34 // Checkstyle: stop |
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35 class Token { |
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36 |
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37 public int kind; // token kind |
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38 public int pos; // token position in bytes in the source text (starting at 0) |
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39 public int charPos; // token position in characters in the source text (starting at 0) |
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40 public int col; // token column (starting at 1) |
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41 public int line; // token line (starting at 1) |
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42 public String val; // token value |
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43 public Token next; // ML 2005-03-11 Peek tokens are kept in linked list |
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44 } |
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45 |
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46 // ----------------------------------------------------------------------------------- |
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47 // Buffer |
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48 // ----------------------------------------------------------------------------------- |
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49 class Buffer { |
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50 |
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51 // This Buffer supports the following cases: |
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52 // 1) seekable stream (file) |
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53 // a) whole stream in buffer |
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54 // b) part of stream in buffer |
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55 // 2) non seekable stream (network, console) |
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56 |
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57 public static final int EOF = Character.MAX_VALUE + 1; |
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58 private static final int MIN_BUFFER_LENGTH = 1024; // 1KB |
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59 private static final int MAX_BUFFER_LENGTH = MIN_BUFFER_LENGTH * 64; // 64KB |
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60 private byte[] buf; // input buffer |
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61 private int bufStart; // position of first byte in buffer relative to input stream |
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62 private int bufLen; // length of buffer |
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63 private int fileLen; // length of input stream (may change if stream is no file) |
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64 private int bufPos; // current position in buffer |
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65 private RandomAccessFile file; // input stream (seekable) |
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66 private InputStream stream; // growing input stream (e.g.: console, network) |
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67 |
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68 public Buffer(InputStream s) { |
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69 stream = s; |
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70 fileLen = bufLen = bufStart = bufPos = 0; |
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71 buf = new byte[MIN_BUFFER_LENGTH]; |
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72 } |
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73 |
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74 public Buffer(String fileName) { |
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75 try { |
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76 file = new RandomAccessFile(fileName, "r"); |
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77 fileLen = (int) file.length(); |
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78 bufLen = Math.min(fileLen, MAX_BUFFER_LENGTH); |
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79 buf = new byte[bufLen]; |
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80 bufStart = Integer.MAX_VALUE; // nothing in buffer so far |
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81 if (fileLen > 0) |
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82 setPos(0); // setup buffer to position 0 (start) |
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83 else |
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84 bufPos = 0; // index 0 is already after the file, thus setPos(0) is invalid |
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85 if (bufLen == fileLen) |
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86 Close(); |
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87 } catch (IOException e) { |
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88 throw new FatalError("Could not open file " + fileName); |
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89 } |
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90 } |
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91 |
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92 // don't use b after this call anymore |
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93 // called in UTF8Buffer constructor |
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94 protected Buffer(Buffer b) { |
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95 buf = b.buf; |
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96 bufStart = b.bufStart; |
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97 bufLen = b.bufLen; |
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98 fileLen = b.fileLen; |
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99 bufPos = b.bufPos; |
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100 file = b.file; |
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101 stream = b.stream; |
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102 // keep finalize from closing the file |
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103 b.file = null; |
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104 } |
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105 |
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106 @Override |
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107 protected void finalize() throws Throwable { |
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108 super.finalize(); |
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109 Close(); |
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110 } |
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111 |
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112 protected void Close() { |
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113 if (file != null) { |
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114 try { |
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115 file.close(); |
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116 file = null; |
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117 } catch (IOException e) { |
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118 throw new FatalError(e.getMessage()); |
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119 } |
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120 } |
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121 } |
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122 |
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123 public int Read() { |
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124 if (bufPos < bufLen) { |
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125 return buf[bufPos++] & 0xff; // mask out sign bits |
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126 } else if (getPos() < fileLen) { |
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127 setPos(getPos()); // shift buffer start to pos |
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128 return buf[bufPos++] & 0xff; // mask out sign bits |
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129 } else if (stream != null && ReadNextStreamChunk() > 0) { |
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130 return buf[bufPos++] & 0xff; // mask out sign bits |
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131 } else { |
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132 return EOF; |
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133 } |
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134 } |
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135 |
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136 public int Peek() { |
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137 int curPos = getPos(); |
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138 int ch = Read(); |
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139 setPos(curPos); |
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140 return ch; |
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141 } |
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142 |
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143 // beg .. begin, zero-based, inclusive, in byte |
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144 // end .. end, zero-based, exclusive, in byte |
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145 public String GetString(int beg, int end) { |
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146 int len = 0; |
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147 char[] buffer = new char[end - beg]; |
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148 int oldPos = getPos(); |
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149 setPos(beg); |
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150 while (getPos() < end) |
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151 buffer[len++] = (char) Read(); |
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152 setPos(oldPos); |
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153 return new String(buffer, 0, len); |
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154 } |
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155 |
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156 public int getPos() { |
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157 return bufPos + bufStart; |
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158 } |
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159 |
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160 public void setPos(int value) { |
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161 if (value >= fileLen && stream != null) { |
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162 // Wanted position is after buffer and the stream |
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163 // is not seek-able e.g. network or console, |
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164 // thus we have to read the stream manually till |
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165 // the wanted position is in sight. |
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166 while (value >= fileLen && ReadNextStreamChunk() > 0) { |
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167 // nothing to do... |
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168 } |
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169 } |
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170 |
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171 if (value < 0 || value > fileLen) { |
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172 throw new FatalError("buffer out of bounds access, position: " + value); |
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173 } |
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174 |
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175 if (value >= bufStart && value < bufStart + bufLen) { // already in buffer |
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176 bufPos = value - bufStart; |
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177 } else if (file != null) { // must be swapped in |
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178 try { |
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179 file.seek(value); |
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180 bufLen = file.read(buf); |
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181 bufStart = value; |
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182 bufPos = 0; |
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183 } catch (IOException e) { |
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184 throw new FatalError(e.getMessage()); |
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185 } |
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186 } else { |
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187 // set the position to the end of the file, Pos will return fileLen. |
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188 bufPos = fileLen - bufStart; |
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189 } |
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190 } |
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191 |
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192 // Read the next chunk of bytes from the stream, increases the buffer |
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193 // if needed and updates the fields fileLen and bufLen. |
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194 // Returns the number of bytes read. |
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195 private int ReadNextStreamChunk() { |
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196 int free = buf.length - bufLen; |
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197 if (free == 0) { |
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198 // in the case of a growing input stream |
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199 // we can neither seek in the stream, nor can we |
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200 // foresee the maximum length, thus we must adapt |
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201 // the buffer size on demand. |
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202 byte[] newBuf = new byte[bufLen * 2]; |
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203 System.arraycopy(buf, 0, newBuf, 0, bufLen); |
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204 buf = newBuf; |
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205 free = bufLen; |
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206 } |
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207 |
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208 int read; |
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209 try { |
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210 read = stream.read(buf, bufLen, free); |
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211 } catch (IOException ioex) { |
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212 throw new FatalError(ioex.getMessage()); |
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213 } |
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214 |
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215 if (read > 0) { |
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216 fileLen = bufLen = (bufLen + read); |
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217 return read; |
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218 } |
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219 // end of stream reached |
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220 return 0; |
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|
221 } |
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222 } |
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|
223 |
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|
224 // ----------------------------------------------------------------------------------- |
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parents:
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|
225 // UTF8Buffer |
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226 // ----------------------------------------------------------------------------------- |
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227 class UTF8Buffer extends Buffer { |
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228 |
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229 UTF8Buffer(Buffer b) { |
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230 super(b); |
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|
231 } |
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|
232 |
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|
233 @Override |
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|
234 public int Read() { |
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parents:
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|
235 int ch; |
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|
236 do { |
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237 ch = super.Read(); |
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238 // until we find a utf8 start (0xxxxxxx or 11xxxxxx) |
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239 } while ((ch >= 128) && ((ch & 0xC0) != 0xC0) && (ch != EOF)); |
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240 if (ch < 128 || ch == EOF) { |
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241 // nothing to do, first 127 chars are the same in ascii and utf8 |
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242 // 0xxxxxxx or end of file character |
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243 } else if ((ch & 0xF0) == 0xF0) { |
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|
244 // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx |
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245 int c1 = ch & 0x07; |
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246 ch = super.Read(); |
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|
247 int c2 = ch & 0x3F; |
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parents:
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248 ch = super.Read(); |
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249 int c3 = ch & 0x3F; |
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250 ch = super.Read(); |
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251 int c4 = ch & 0x3F; |
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252 ch = (((((c1 << 6) | c2) << 6) | c3) << 6) | c4; |
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253 } else if ((ch & 0xE0) == 0xE0) { |
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254 // 1110xxxx 10xxxxxx 10xxxxxx |
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255 int c1 = ch & 0x0F; |
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256 ch = super.Read(); |
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257 int c2 = ch & 0x3F; |
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258 ch = super.Read(); |
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259 int c3 = ch & 0x3F; |
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260 ch = (((c1 << 6) | c2) << 6) | c3; |
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261 } else if ((ch & 0xC0) == 0xC0) { |
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262 // 110xxxxx 10xxxxxx |
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263 int c1 = ch & 0x1F; |
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264 ch = super.Read(); |
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265 int c2 = ch & 0x3F; |
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266 ch = (c1 << 6) | c2; |
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267 } |
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268 return ch; |
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269 } |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------------- |
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273 // StartStates -- maps characters to start states of tokens |
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274 // ----------------------------------------------------------------------------------- |
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275 class StartStates { |
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276 |
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277 private static class Elem { |
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278 |
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279 public int key, val; |
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280 public Elem next; |
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281 |
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282 public Elem(int key, int val) { |
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283 this.key = key; |
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284 this.val = val; |
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285 } |
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286 } |
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287 |
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288 private Elem[] tab = new Elem[128]; |
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289 |
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290 public void set(int key, int val) { |
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291 Elem e = new Elem(key, val); |
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292 int k = key % 128; |
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293 e.next = tab[k]; |
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294 tab[k] = e; |
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295 } |
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296 |
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297 public int state(int key) { |
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298 Elem e = tab[key % 128]; |
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299 while (e != null && e.key != key) |
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300 e = e.next; |
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301 return e == null ? 0 : e.val; |
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302 } |
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303 } |
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304 |
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305 // ----------------------------------------------------------------------------------- |
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306 // Scanner |
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307 // ----------------------------------------------------------------------------------- |
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308 @SuppressWarnings({"rawtypes", "unchecked"}) |
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309 public class Scanner { |
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310 |
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311 static final char EOL = '\n'; |
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312 static final int eofSym = 0; |
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313 static final int maxT = 25; |
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314 static final int noSym = 25; |
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315 |
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316 |
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317 public Buffer buffer; // scanner buffer |
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318 |
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319 Token t; // current token |
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320 int ch; // current input character |
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321 int pos; // byte position of current character |
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322 int charPos; // position by unicode characters starting with 0 |
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323 int col; // column number of current character |
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324 int line; // line number of current character |
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325 int oldEols; // EOLs that appeared in a comment; |
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326 static final StartStates start; // maps initial token character to start state |
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327 static final Map literals; // maps literal strings to literal kinds |
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328 |
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329 Token tokens; // list of tokens already peeked (first token is a dummy) |
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330 Token pt; // current peek token |
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331 |
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332 char[] tval = new char[16]; // token text used in NextToken(), dynamically enlarged |
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333 int tlen; // length of current token |
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334 |
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335 static { |
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336 start = new StartStates(); |
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337 literals = new HashMap(); |
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338 for (int i = 65; i <= 90; ++i) start.set(i, 1); |
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339 for (int i = 97; i <= 122; ++i) start.set(i, 1); |
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340 for (int i = 49; i <= 57; ++i) start.set(i, 4); |
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341 start.set(34, 2); |
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342 start.set(48, 5); |
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343 start.set(123, 6); |
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344 start.set(125, 7); |
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345 start.set(40, 8); |
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346 start.set(41, 9); |
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347 start.set(61, 20); |
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348 start.set(59, 10); |
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349 start.set(60, 21); |
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350 start.set(62, 22); |
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351 start.set(33, 14); |
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352 start.set(43, 16); |
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353 start.set(45, 17); |
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354 start.set(42, 18); |
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355 start.set(47, 19); |
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356 start.set(Buffer.EOF, -1); |
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357 literals.put("function", new Integer(4)); |
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358 literals.put("while", new Integer(7)); |
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359 literals.put("print", new Integer(12)); |
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360 literals.put("return", new Integer(13)); |
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361 literals.put("time", new Integer(24)); |
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362 |
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363 } |
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364 |
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365 public Scanner(String fileName) { |
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366 buffer = new Buffer(fileName); |
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367 Init(); |
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368 } |
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369 |
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370 public Scanner(InputStream s) { |
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371 buffer = new Buffer(s); |
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372 Init(); |
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373 } |
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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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|
374 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
375 void Init() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
376 pos = -1; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
377 line = 1; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
378 col = 0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
379 charPos = -1; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
380 oldEols = 0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
381 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
382 if (ch == 0xEF) { // check optional byte order mark for UTF-8 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
383 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
384 int ch1 = ch; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
385 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
386 int ch2 = ch; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
387 if (ch1 != 0xBB || ch2 != 0xBF) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
388 throw new FatalError("Illegal byte order mark at start of file"); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
389 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
390 buffer = new UTF8Buffer(buffer); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
391 col = 0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
392 charPos = -1; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
393 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
394 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
395 pt = tokens = new Token(); // first token is a dummy |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
396 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
397 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
398 void NextCh() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
399 if (oldEols > 0) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
400 ch = EOL; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
401 oldEols--; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
402 } else { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
403 pos = buffer.getPos(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
404 // buffer reads unicode chars, if UTF8 has been detected |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
405 ch = buffer.Read(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
406 col++; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
407 charPos++; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
408 // replace isolated '\r' by '\n' in order to make |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
409 // eol handling uniform across Windows, Unix and Mac |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
410 if (ch == '\r' && buffer.Peek() != '\n') |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
411 ch = EOL; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
412 if (ch == EOL) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
413 line++; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
414 col = 0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
415 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
416 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
417 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
418 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
419 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
420 void AddCh() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
421 if (tlen >= tval.length) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
422 char[] newBuf = new char[2 * tval.length]; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
423 System.arraycopy(tval, 0, newBuf, 0, tval.length); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
424 tval = newBuf; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
425 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
426 if (ch != Buffer.EOF) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
427 tval[tlen++] = (char)ch; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
428 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
429 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
430 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
431 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
432 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
433 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
434 boolean Comment0() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
435 int level = 1, pos0 = pos, line0 = line, col0 = col, charPos0 = charPos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
436 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
437 if (ch == '/') { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
438 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
439 for(;;) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
440 if (ch == 10) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
441 level--; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
442 if (level == 0) { oldEols = line - line0; NextCh(); return true; } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
443 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
444 } else if (ch == Buffer.EOF) return false; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
445 else NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
446 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
447 } else { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
448 buffer.setPos(pos0); NextCh(); line = line0; col = col0; charPos = charPos0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
449 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
450 return false; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
451 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
452 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
453 boolean Comment1() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
454 int level = 1, pos0 = pos, line0 = line, col0 = col, charPos0 = charPos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
455 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
456 if (ch == '*') { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
457 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
458 for(;;) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
459 if (ch == '*') { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
460 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
461 if (ch == '/') { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
462 level--; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
463 if (level == 0) { oldEols = line - line0; NextCh(); return true; } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
464 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
465 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
466 } else if (ch == Buffer.EOF) return false; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
467 else NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
468 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
469 } else { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
470 buffer.setPos(pos0); NextCh(); line = line0; col = col0; charPos = charPos0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
471 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
472 return false; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
473 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
474 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
475 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
476 void CheckLiteral() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
477 String val = t.val; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
478 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
479 Object kind = literals.get(val); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
480 if (kind != null) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
481 t.kind = ((Integer) kind).intValue(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
482 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
483 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
484 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
485 Token NextToken() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
486 while (ch == ' ' || |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
487 ch >= 9 && ch <= 10 || ch == 13 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
488 ) NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
489 if (ch == '/' && Comment0() ||ch == '/' && Comment1()) return NextToken(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
490 int recKind = noSym; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
491 int recEnd = pos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
492 t = new Token(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
493 t.pos = pos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
494 t.col = col; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
495 t.line = line; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
496 t.charPos = charPos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
497 int state = start.state(ch); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
498 tlen = 0; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
499 AddCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
500 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
501 loop: for (;;) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
502 switch (state) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
503 case -1: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
504 t.kind = eofSym; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
505 break loop; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
506 } // NextCh already done |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
507 case 0: { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
508 if (recKind != noSym) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
509 tlen = recEnd - t.pos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
510 SetScannerBehindT(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
511 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
512 t.kind = recKind; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
513 break loop; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
514 } // NextCh already done |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
515 case 1: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
516 recEnd = pos; recKind = 1; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
517 if (ch >= '0' && ch <= '9' || ch >= 'A' && ch <= 'Z' || ch >= 'a' && ch <= 'z') {AddCh(); state = 1; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
518 else {t.kind = 1; t.val = new String(tval, 0, tlen); CheckLiteral(); return t;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
519 case 2: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
520 if (ch <= 9 || ch >= 11 && ch <= 12 || ch >= 14 && ch <= '!' || ch >= '#' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); state = 2; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
521 else if (ch == '"') {AddCh(); state = 3; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
522 else {state = 0; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
523 case 3: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
524 {t.kind = 2; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
525 case 4: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
526 recEnd = pos; recKind = 3; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
527 if (ch >= '0' && ch <= '9') {AddCh(); state = 4; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
528 else {t.kind = 3; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
529 case 5: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
530 {t.kind = 3; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
531 case 6: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
532 {t.kind = 5; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
533 case 7: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
534 {t.kind = 6; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
535 case 8: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
536 {t.kind = 8; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
537 case 9: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
538 {t.kind = 9; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
539 case 10: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
540 {t.kind = 11; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
541 case 11: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
542 {t.kind = 16; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
543 case 12: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
544 {t.kind = 17; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
545 case 13: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
546 {t.kind = 18; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
547 case 14: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
548 if (ch == '=') {AddCh(); state = 15; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
549 else {state = 0; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
550 case 15: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
551 {t.kind = 19; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
552 case 16: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
553 {t.kind = 20; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
554 case 17: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
555 {t.kind = 21; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
556 case 18: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
557 {t.kind = 22; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
558 case 19: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
559 {t.kind = 23; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
560 case 20: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
561 recEnd = pos; recKind = 10; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
562 if (ch == '=') {AddCh(); state = 13; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
563 else {t.kind = 10; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
564 case 21: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
565 recEnd = pos; recKind = 14; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
566 if (ch == '=') {AddCh(); state = 11; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
567 else {t.kind = 14; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
568 case 22: |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
569 recEnd = pos; recKind = 15; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
570 if (ch == '=') {AddCh(); state = 12; break;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
571 else {t.kind = 15; break loop;} |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
572 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
573 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
574 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
575 t.val = new String(tval, 0, tlen); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
576 return t; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
577 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
578 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
579 private void SetScannerBehindT() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
580 buffer.setPos(t.pos); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
581 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
582 line = t.line; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
583 col = t.col; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
584 charPos = t.charPos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
585 for (int i = 0; i < tlen; i++) |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
586 NextCh(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
587 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
588 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
589 // get the next token (possibly a token already seen during peeking) |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
590 public Token Scan() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
591 if (tokens.next == null) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
592 return NextToken(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
593 } else { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
594 pt = tokens = tokens.next; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
595 return tokens; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
596 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
597 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
598 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
599 // get the next token, ignore pragmas |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
600 public Token Peek() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
601 do { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
602 if (pt.next == null) { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
603 pt.next = NextToken(); |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
604 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
605 pt = pt.next; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
606 } while (pt.kind > maxT); // skip pragmas |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
607 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
608 return pt; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
609 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
610 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
611 // make sure that peeking starts at current scan position |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
612 public void ResetPeek() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
613 pt = tokens; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
614 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
615 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
616 // The following methods are used for the CLNG Editor and will be called with java.Reflection. |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
617 // If the editor won't be used these 3 functions are obsolete, |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
618 // otherwise changes within the signature of the methods will result in Syntax Highlighting not working properly |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
619 // anymore. |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
620 |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
621 // get the offset of the next Token |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
622 public int getPeekTokenOffset() { |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
623 return pt.pos; |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
changeset
|
624 } |
213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff
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625 |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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626 // get the String value of the Token |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
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627 public String getPeekTokenVal() { |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
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628 return pt.val; |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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629 } |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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630 |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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631 // get the Kind value of the Token |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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632 public int getPeekTokenKind() { |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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633 return pt.kind; |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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634 } |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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635 |
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Simple Language: A simple dynamic programming language to demonstrate Truffle features
Christian Wimmer <christian.wimmer@oracle.com>
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636 } // end Scanner |