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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/source/Source.java @ 20906:c8b83aa6cc82
Truffle/Source: remove proposed standard SourceTags; migrate the tags related to Source provenance into thte Source class.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 13 Apr 2015 10:55:15 -0700 |
parents | bbf53b35292e |
children | a43c7adc9d99 |
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1 /* |
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2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api.source; |
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26 |
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27 import java.io.*; |
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28 import java.lang.ref.*; |
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29 import java.net.*; |
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30 import java.util.*; |
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31 |
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32 import com.oracle.truffle.api.instrument.*; |
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33 |
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34 /** |
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35 * Representation of a guest language source code unit and its contents. Sources originate in |
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36 * several ways: |
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37 * <ul> |
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38 * <li><strong>Literal:</strong> A named text string. These are not indexed and should be considered |
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39 * value objects; equality is defined based on contents. <br> |
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40 * See {@link Source#fromText(CharSequence, String)}</li> |
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41 * <p> |
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42 * <li><strong>File:</strong> Each file is represented as a canonical object, indexed by the |
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43 * absolute, canonical path name of the file. File contents are <em>read lazily</em> and contents |
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44 * optionally <em>cached</em>. <br> |
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45 * See {@link Source#fromFileName(String)}<br> |
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46 * See {@link Source#fromFileName(String, boolean)}</li> |
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47 * <p> |
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48 * <li><strong>URL:</strong> Each URL source is represented as a canonical object, indexed by the |
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49 * URL. Contents are <em>read eagerly</em> and <em>cached</em>. <br> |
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50 * See {@link Source#fromURL(URL, String)}</li> |
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51 * <p> |
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52 * <li><strong>Reader:</strong> Contents are <em>read eagerly</em> and treated as a <em>Literal</em> |
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53 * . <br> |
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54 * See {@link Source#fromReader(Reader, String)}</li> |
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55 * <p> |
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56 * <li><strong>Pseudo File:</strong> A literal text string that can be retrieved by name as if it |
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57 * were a file, unlike literal sources; useful for testing. <br> |
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58 * See {@link Source#asPseudoFile(CharSequence, String)}</li> |
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59 * </ul> |
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60 * <p> |
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61 * <strong>File cache:</strong> |
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62 * <ol> |
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63 * <li>File content caching is optional, <em>off</em> by default.</li> |
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64 * <li>The first access to source file contents will result in the contents being read, and (if |
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65 * enabled) cached.</li> |
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66 * <li>If file contents have been cached, access to contents via {@link Source#getInputStream()} or |
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67 * {@link Source#getReader()} will be provided from the cache.</li> |
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68 * <li>Any access to file contents via the cache will result in a timestamp check and possible cache |
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69 * reload.</li> |
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70 * </ol> |
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71 * <p> |
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72 * |
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73 * @see SourceTag |
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74 * @see SourceListener |
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75 */ |
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76 public abstract class Source { |
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77 |
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78 // TODO (mlvdv) consider canonicalizing and reusing SourceSection instances |
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79 // TOOD (mlvdv) connect SourceSections into a spatial tree for fast geometric lookup |
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80 |
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81 public enum Tags implements SourceTag { |
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82 |
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83 /** |
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84 * From bytes. |
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85 */ |
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86 FROM_BYTES("bytes", "read from bytes"), |
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87 |
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88 /** |
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89 * Read from a file. |
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90 */ |
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91 FROM_FILE("file", "read from a file"), |
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92 |
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93 /** |
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94 * From literal text. |
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95 */ |
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96 FROM_LITERAL("literal", "from literal text"), |
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97 |
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98 /** |
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99 * From a {@linkplain java.io.Reader Reader}. |
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100 */ |
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101 FROM_READER("reader", "read from a Java Reader"), |
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102 |
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103 /** |
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104 * Read from a URL. |
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105 */ |
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106 FROM_URL("URL", "read from a URL"); |
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107 |
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108 private final String name; |
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109 private final String description; |
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110 |
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111 private Tags(String name, String description) { |
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112 this.name = name; |
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113 this.description = description; |
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114 } |
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115 |
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116 public String getName() { |
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117 return name; |
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118 } |
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119 |
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120 public String getDescription() { |
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121 return description; |
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122 } |
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123 |
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124 } |
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125 |
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126 /** |
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127 * All Sources that have been created. |
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128 */ |
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129 private static final List<WeakReference<Source>> allSources = Collections.synchronizedList(new ArrayList<WeakReference<Source>>()); |
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130 |
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131 // Files and pseudo files are indexed. |
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132 private static final Map<String, WeakReference<Source>> filePathToSource = new HashMap<>(); |
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133 |
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134 private static boolean fileCacheEnabled = true; |
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135 |
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136 private static final List<SourceListener> sourceListeners = new ArrayList<>(); |
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137 |
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138 /** |
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139 * Gets the canonical representation of a source file, whose contents will be read lazily and |
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140 * then cached. |
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141 * |
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142 * @param fileName name |
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143 * @param reset forces any existing {@link Source} cache to be cleared, forcing a re-read |
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144 * @return canonical representation of the file's contents. |
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145 * @throws IOException if the file can not be read |
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146 */ |
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147 public static Source fromFileName(String fileName, boolean reset) throws IOException { |
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148 |
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149 final WeakReference<Source> nameRef = filePathToSource.get(fileName); |
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150 Source source = nameRef == null ? null : nameRef.get(); |
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151 if (source == null) { |
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152 final File file = new File(fileName); |
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153 if (!file.canRead()) { |
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154 throw new IOException("Can't read file " + fileName); |
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155 } |
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156 final String path = file.getCanonicalPath(); |
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157 final WeakReference<Source> pathRef = filePathToSource.get(path); |
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158 source = pathRef == null ? null : pathRef.get(); |
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159 if (source == null) { |
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160 source = new FileSource(file, fileName, path); |
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161 filePathToSource.put(path, new WeakReference<>(source)); |
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162 } |
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163 } |
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164 if (reset) { |
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165 source.reset(); |
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166 } |
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167 notifyNewSource(source).tagAs(Tags.FROM_FILE); |
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168 return source; |
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169 } |
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170 |
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171 /** |
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172 * Gets the canonical representation of a source file, whose contents will be read lazily and |
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173 * then cached. |
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174 * |
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175 * @param fileName name |
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176 * @return canonical representation of the file's contents. |
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177 * @throws IOException if the file can not be read |
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178 */ |
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179 public static Source fromFileName(String fileName) throws IOException { |
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180 return fromFileName(fileName, false); |
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181 } |
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182 |
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183 /** |
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184 * Gets the canonical representation of a source file, whose contents have already been read and |
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185 * need not be read again. It is confirmed that the file resolves to a file name, so it can be |
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186 * indexed by canonical path. It is not confirmed that the text supplied agrees with the file's |
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187 * contents or even whether the file is readable. |
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188 * |
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189 * @param chars textual source code already read from the file |
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190 * @param fileName |
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191 * @return canonical representation of the file's contents. |
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192 * @throws IOException if the file cannot be found |
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193 */ |
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194 public static Source fromFileName(CharSequence chars, String fileName) throws IOException { |
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195 |
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196 final WeakReference<Source> nameRef = filePathToSource.get(fileName); |
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197 Source source = nameRef == null ? null : nameRef.get(); |
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198 if (source == null) { |
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199 final File file = new File(fileName); |
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200 // We are going to trust that the fileName is readable. |
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201 final String path = file.getCanonicalPath(); |
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202 final WeakReference<Source> pathRef = filePathToSource.get(path); |
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203 source = pathRef == null ? null : pathRef.get(); |
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204 if (source == null) { |
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205 source = new FileSource(file, fileName, path, chars); |
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206 filePathToSource.put(path, new WeakReference<>(source)); |
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207 } |
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208 } |
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209 notifyNewSource(source).tagAs(Tags.FROM_FILE); |
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210 return source; |
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211 } |
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212 |
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213 /** |
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214 * Creates a non-canonical source from literal text. If an already created literal source must |
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215 * be retrievable by name, use {@link #asPseudoFile(CharSequence, String)}. |
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216 * |
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217 * @param chars textual source code |
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218 * @param description a note about the origin, for error messages and debugging |
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219 * @return a newly created, non-indexed source representation |
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220 */ |
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221 public static Source fromText(CharSequence chars, String description) { |
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222 assert chars != null; |
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223 final LiteralSource source = new LiteralSource(description, chars.toString()); |
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224 notifyNewSource(source).tagAs(Tags.FROM_LITERAL); |
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225 return source; |
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226 } |
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227 |
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228 /** |
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229 * Creates a source whose contents will be read immediately from a URL and cached. |
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230 * |
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231 * @param url |
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232 * @param description identifies the origin, possibly useful for debugging |
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233 * @return a newly created, non-indexed source representation |
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234 * @throws IOException if reading fails |
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235 */ |
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236 public static Source fromURL(URL url, String description) throws IOException { |
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237 final URLSource source = URLSource.get(url, description); |
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238 notifyNewSource(source).tagAs(Tags.FROM_URL); |
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239 return source; |
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240 } |
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241 |
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242 /** |
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243 * Creates a source whose contents will be read immediately and cached. |
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244 * |
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245 * @param reader |
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246 * @param description a note about the origin, possibly useful for debugging |
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247 * @return a newly created, non-indexed source representation |
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248 * @throws IOException if reading fails |
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249 */ |
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250 public static Source fromReader(Reader reader, String description) throws IOException { |
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251 final LiteralSource source = new LiteralSource(description, read(reader)); |
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252 notifyNewSource(source).tagAs(Tags.FROM_READER); |
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253 return source; |
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254 } |
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255 |
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256 /** |
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257 * Creates a source from raw bytes. This can be used if the encoding of strings in your language |
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258 * is not compatible with Java strings, or if your parser returns byte indices instead of |
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259 * character indices. The returned source is then indexed by byte, not by character. |
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260 * |
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261 * @param bytes the raw bytes of the source |
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262 * @param description a note about the origin, possibly useful for debugging |
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263 * @param decoder how to decode the bytes into Java strings |
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264 * @return a newly created, non-indexed source representation |
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265 */ |
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266 public static Source fromBytes(byte[] bytes, String description, BytesDecoder decoder) { |
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267 return fromBytes(bytes, 0, bytes.length, description, decoder); |
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268 } |
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269 |
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270 /** |
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271 * Creates a source from raw bytes. This can be used if the encoding of strings in your language |
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272 * is not compatible with Java strings, or if your parser returns byte indices instead of |
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273 * character indices. The returned source is then indexed by byte, not by character. Offsets are |
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274 * relative to byteIndex. |
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275 * |
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276 * @param bytes the raw bytes of the source |
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277 * @param byteIndex where the string starts in the byte array |
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278 * @param length the length of the string in the byte array |
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279 * @param description a note about the origin, possibly useful for debugging |
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280 * @param decoder how to decode the bytes into Java strings |
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281 * @return a newly created, non-indexed source representation |
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282 */ |
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283 public static Source fromBytes(byte[] bytes, int byteIndex, int length, String description, BytesDecoder decoder) { |
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284 final BytesSource source = new BytesSource(description, bytes, byteIndex, length, decoder); |
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285 notifyNewSource(source).tagAs(Tags.FROM_BYTES); |
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286 return source; |
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287 } |
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288 |
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289 /** |
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290 * Creates a source from literal text, but which acts as a file and can be retrieved by name |
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291 * (unlike other literal sources); intended for testing. |
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292 * |
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293 * @param chars textual source code |
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294 * @param pseudoFileName string to use for indexing/lookup |
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295 * @return a newly created, source representation, canonical with respect to its name |
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296 */ |
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297 public static Source asPseudoFile(CharSequence chars, String pseudoFileName) { |
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298 final Source source = new LiteralSource(pseudoFileName, chars.toString()); |
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299 filePathToSource.put(pseudoFileName, new WeakReference<>(source)); |
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300 notifyNewSource(source).tagAs(Tags.FROM_LITERAL); |
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301 return source; |
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302 } |
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303 |
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304 // TODO (mlvdv) enable per-file choice whether to cache? |
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305 /** |
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306 * Enables/disables caching of file contents, <em>disabled</em> by default. Caching of sources |
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307 * created from literal text or readers is always enabled. |
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308 */ |
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309 public static void setFileCaching(boolean enabled) { |
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310 fileCacheEnabled = enabled; |
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311 } |
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312 |
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313 /** |
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314 * Returns all {@link Source}s holding a particular {@link SyntaxTag}, or the whole collection |
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315 * of Sources if the specified tag is {@code null}. |
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316 * |
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317 * @return A collection of Sources containing the given tag. |
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318 */ |
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319 public static Collection<Source> findSourcesTaggedAs(SourceTag tag) { |
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320 final List<Source> taggedSources = new ArrayList<>(); |
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321 synchronized (allSources) { |
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322 for (WeakReference<Source> ref : allSources) { |
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323 Source source = ref.get(); |
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324 if (source != null) { |
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325 if (tag == null || source.isTaggedAs(tag)) { |
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326 taggedSources.add(ref.get()); |
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327 } |
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328 } |
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329 } |
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330 } |
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331 return taggedSources; |
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332 } |
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333 |
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334 /** |
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335 * Adds a {@link SourceListener} to receive events. |
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336 */ |
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337 public static void addSourceListener(SourceListener listener) { |
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338 assert listener != null; |
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339 sourceListeners.add(listener); |
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340 } |
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341 |
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342 /** |
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343 * Removes a {@link SourceListener}. Ignored if listener not found. |
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344 */ |
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345 public static void removeSourceListener(SourceListener listener) { |
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346 sourceListeners.remove(listener); |
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347 } |
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348 |
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349 private static Source notifyNewSource(Source source) { |
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350 allSources.add(new WeakReference<>(source)); |
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351 for (SourceListener listener : sourceListeners) { |
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352 listener.sourceCreated(source); |
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353 } |
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354 return source; |
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355 } |
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356 |
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357 private static String read(Reader reader) throws IOException { |
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358 final BufferedReader bufferedReader = new BufferedReader(reader); |
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359 final StringBuilder builder = new StringBuilder(); |
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360 final char[] buffer = new char[1024]; |
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361 |
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362 while (true) { |
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363 final int n = bufferedReader.read(buffer); |
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364 if (n == -1) { |
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365 break; |
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366 } |
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367 builder.append(buffer, 0, n); |
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368 } |
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369 |
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370 return builder.toString(); |
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371 } |
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372 |
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373 private final ArrayList<SourceTag> tags = new ArrayList<>(); |
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374 |
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375 Source() { |
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376 } |
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377 |
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378 private TextMap textMap = null; |
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379 |
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380 protected abstract void reset(); |
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381 |
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382 public final boolean isTaggedAs(SourceTag tag) { |
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383 assert tag != null; |
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384 return tags.contains(tag); |
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385 } |
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386 |
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387 public final Collection<SourceTag> getSourceTags() { |
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388 return Collections.unmodifiableCollection(tags); |
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389 } |
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390 |
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391 /** |
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392 * Adds a {@linkplain SourceTag tag} to the set of tags associated with this {@link Source}; |
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393 * {@code no-op} if already in the set. |
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394 * |
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395 * @return this |
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396 */ |
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397 public final Source tagAs(SourceTag tag) { |
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398 assert tag != null; |
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399 if (!tags.contains(tag)) { |
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400 tags.add(tag); |
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401 for (SourceListener listener : sourceListeners) { |
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402 listener.sourceTaggedAs(this, tag); |
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403 } |
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404 } |
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405 return this; |
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406 } |
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407 |
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408 /** |
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409 * Returns the name of this resource holding a guest language program. An example would be the |
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410 * name of a guest language source code file. |
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411 * |
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412 * @return the name of the guest language program |
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413 */ |
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414 public abstract String getName(); |
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415 |
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416 /** |
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417 * Returns a short version of the name of the resource holding a guest language program (as |
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418 * described in @getName). For example, this could be just the name of the file, rather than a |
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419 * full path. |
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420 * |
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421 * @return the short name of the guest language program |
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422 */ |
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423 public abstract String getShortName(); |
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424 |
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425 /** |
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426 * The normalized, canonical name if the source is a file. |
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427 */ |
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428 public abstract String getPath(); |
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429 |
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430 /** |
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431 * The URL if the source is retrieved via URL. |
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432 */ |
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433 public abstract URL getURL(); |
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434 |
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435 /** |
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436 * Access to the source contents. |
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437 */ |
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438 public abstract Reader getReader(); |
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439 |
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440 /** |
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441 * Access to the source contents. |
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442 */ |
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443 public final InputStream getInputStream() { |
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444 return new ByteArrayInputStream(getCode().getBytes()); |
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445 } |
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446 |
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447 /** |
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448 * Gets the number of characters in the source. |
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449 */ |
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450 public final int getLength() { |
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451 return checkTextMap().length(); |
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452 } |
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453 |
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454 /** |
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455 * Returns the complete text of the code. |
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456 */ |
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457 public abstract String getCode(); |
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458 |
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459 /** |
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460 * Returns a subsection of the code test. |
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461 */ |
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462 public String getCode(int charIndex, int charLength) { |
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463 return getCode().substring(charIndex, charIndex + charLength); |
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464 } |
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465 |
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466 /** |
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467 * Gets the text (not including a possible terminating newline) in a (1-based) numbered line. |
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468 */ |
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469 public final String getCode(int lineNumber) { |
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470 checkTextMap(); |
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471 final int offset = textMap.lineStartOffset(lineNumber); |
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472 final int length = textMap.lineLength(lineNumber); |
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473 return getCode().substring(offset, offset + length); |
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474 } |
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475 |
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476 /** |
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477 * The number of text lines in the source, including empty lines; characters at the end of the |
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478 * source without a terminating newline count as a line. |
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479 */ |
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480 public final int getLineCount() { |
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481 return checkTextMap().lineCount(); |
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482 } |
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483 |
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484 /** |
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485 * Given a 0-based character offset, return the 1-based number of the line that includes the |
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486 * position. |
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487 * |
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488 * @throws IllegalArgumentException if the offset is outside the text contents |
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489 */ |
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490 public final int getLineNumber(int offset) throws IllegalArgumentException { |
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491 return checkTextMap().offsetToLine(offset); |
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492 } |
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493 |
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494 /** |
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495 * Given a 0-based character offset, return the 1-based number of the column at the position. |
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496 * |
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497 * @throws IllegalArgumentException if the offset is outside the text contents |
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498 */ |
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499 public final int getColumnNumber(int offset) throws IllegalArgumentException { |
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500 return checkTextMap().offsetToCol(offset); |
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501 } |
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502 |
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503 /** |
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504 * Given a 1-based line number, return the 0-based offset of the first character in the line. |
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505 * |
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506 * @throws IllegalArgumentException if there is no such line in the text |
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507 */ |
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508 public final int getLineStartOffset(int lineNumber) throws IllegalArgumentException { |
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509 return checkTextMap().lineStartOffset(lineNumber); |
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510 } |
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511 |
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512 /** |
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513 * The number of characters (not counting a possible terminating newline) in a (1-based) |
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514 * numbered line. |
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515 * |
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516 * @throws IllegalArgumentException if there is no such line in the text |
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517 */ |
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518 public final int getLineLength(int lineNumber) throws IllegalArgumentException { |
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519 return checkTextMap().lineLength(lineNumber); |
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520 } |
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521 |
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522 /** |
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523 * Creates a representation of a contiguous region of text in the source. |
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524 * <p> |
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525 * This method performs no checks on the validity of the arguments. |
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526 * <p> |
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527 * The resulting representation defines hash/equality around equivalent location, presuming that |
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528 * {@link Source} representations are canonical. |
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529 * |
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530 * @param identifier terse description of the region |
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531 * @param startLine 1-based line number of the first character in the section |
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532 * @param startColumn 1-based column number of the first character in the section |
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533 * @param charIndex the 0-based index of the first character of the section |
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534 * @param length the number of characters in the section |
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535 * @return newly created object representing the specified region |
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536 */ |
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537 public final SourceSection createSection(String identifier, int startLine, int startColumn, int charIndex, int length) { |
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538 return new DefaultSourceSection(this, identifier, startLine, startColumn, charIndex, length); |
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539 } |
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540 |
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541 /** |
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542 * Creates a representation of a contiguous region of text in the source. Computes the |
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543 * {@code charIndex} value by building a {@linkplain TextMap map} of lines in the source. |
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544 * <p> |
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545 * Checks the position arguments for consistency with the source. |
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546 * <p> |
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547 * The resulting representation defines hash/equality around equivalent location, presuming that |
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548 * {@link Source} representations are canonical. |
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549 * |
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550 * @param identifier terse description of the region |
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551 * @param startLine 1-based line number of the first character in the section |
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552 * @param startColumn 1-based column number of the first character in the section |
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553 * @param length the number of characters in the section |
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554 * @return newly created object representing the specified region |
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555 * @throws IllegalArgumentException if arguments are outside the text of the source |
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556 * @throws IllegalStateException if the source is one of the "null" instances |
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557 */ |
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558 public final SourceSection createSection(String identifier, int startLine, int startColumn, int length) { |
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559 checkTextMap(); |
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560 final int lineStartOffset = textMap.lineStartOffset(startLine); |
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561 if (startColumn > textMap.lineLength(startLine)) { |
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562 throw new IllegalArgumentException("column out of range"); |
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563 } |
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564 final int startOffset = lineStartOffset + startColumn - 1; |
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565 return new DefaultSourceSection(this, identifier, startLine, startColumn, startOffset, length); |
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566 } |
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567 |
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568 /** |
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569 * Creates a representation of a contiguous region of text in the source. Computes the |
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570 * {@code (startLine, startColumn)} values by building a {@linkplain TextMap map} of lines in |
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571 * the source. |
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572 * <p> |
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573 * Checks the position arguments for consistency with the source. |
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574 * <p> |
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575 * The resulting representation defines hash/equality around equivalent location, presuming that |
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576 * {@link Source} representations are canonical. |
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577 * |
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578 * |
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579 * @param identifier terse description of the region |
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580 * @param charIndex 0-based position of the first character in the section |
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581 * @param length the number of characters in the section |
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582 * @return newly created object representing the specified region |
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583 * @throws IllegalArgumentException if either of the arguments are outside the text of the |
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584 * source |
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585 * @throws IllegalStateException if the source is one of the "null" instances |
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586 */ |
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587 public final SourceSection createSection(String identifier, int charIndex, int length) throws IllegalArgumentException { |
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588 checkRange(charIndex, length); |
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589 checkTextMap(); |
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590 final int startLine = getLineNumber(charIndex); |
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591 final int startColumn = charIndex - getLineStartOffset(startLine) + 1; |
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592 |
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593 return new DefaultSourceSection(this, identifier, startLine, startColumn, charIndex, length); |
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594 } |
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595 |
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596 protected void checkRange(int charIndex, int length) { |
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597 if (!(charIndex >= 0 && length >= 0 && charIndex + length <= getCode().length())) { |
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598 throw new IllegalArgumentException("text positions out of range"); |
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599 } |
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600 } |
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601 |
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602 /** |
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603 * Creates a representation of a line of text in the source identified only by line number, from |
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604 * which the character information will be computed. |
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605 * |
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606 * @param identifier terse description of the line |
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607 * @param lineNumber 1-based line number of the first character in the section |
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608 * @return newly created object representing the specified line |
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609 * @throws IllegalArgumentException if the line does not exist the source |
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610 * @throws IllegalStateException if the source is one of the "null" instances |
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611 */ |
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612 public final SourceSection createSection(String identifier, int lineNumber) { |
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613 checkTextMap(); |
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614 final int charIndex = textMap.lineStartOffset(lineNumber); |
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615 final int length = textMap.lineLength(lineNumber); |
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616 return createSection(identifier, charIndex, length); |
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617 } |
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618 |
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619 /** |
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620 * Creates a representation of a line number in this source, suitable for use as a hash table |
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621 * key with equality defined to mean equivalent location. |
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622 * |
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623 * @param lineNumber a 1-based line number in this source |
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624 * @return a representation of a line in this source |
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625 */ |
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626 public final LineLocation createLineLocation(int lineNumber) { |
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627 return new LineLocationImpl(this, lineNumber); |
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628 } |
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629 |
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630 private TextMap checkTextMap() { |
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631 if (textMap == null) { |
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632 textMap = createTextMap(); |
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633 } |
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634 return textMap; |
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635 } |
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636 |
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637 protected TextMap createTextMap() { |
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638 final String code = getCode(); |
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639 if (code == null) { |
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640 throw new RuntimeException("can't read file " + getName()); |
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641 } |
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642 return TextMap.fromString(code); |
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643 } |
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644 |
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645 private static final class LiteralSource extends Source { |
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646 |
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647 private final String name; // Name used originally to describe the source |
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648 private final String code; |
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649 |
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650 public LiteralSource(String name, String code) { |
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651 this.name = name; |
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652 this.code = code; |
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653 } |
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654 |
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655 @Override |
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656 public String getName() { |
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657 return name; |
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658 } |
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659 |
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660 @Override |
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661 public String getShortName() { |
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662 return name; |
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663 } |
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664 |
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665 @Override |
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666 public String getCode() { |
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667 return code; |
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668 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
669 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
670 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
671 public String getPath() { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
672 return name; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
673 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
674 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
675 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
676 public URL getURL() { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
677 return null; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
678 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
679 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
680 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
681 public Reader getReader() { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
682 return new StringReader(code); |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
683 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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|
684 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
685 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
686 protected void reset() { |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
687 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
688 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
689 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
690 public int hashCode() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
691 final int prime = 31; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
692 int result = 1; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
693 result = prime * result + name.hashCode(); |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
694 result = prime * result + (code == null ? 0 : code.hashCode()); |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
695 return result; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
696 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
697 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
698 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
699 public boolean equals(Object obj) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
700 if (this == obj) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
701 return true; |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
702 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
703 if (obj == null) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
704 return false; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
705 } |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
706 if (!(obj instanceof LiteralSource)) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
707 return false; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
708 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
709 LiteralSource other = (LiteralSource) obj; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
710 return name.equals(other.name) && code.equals(other.code); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
711 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
712 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
713 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
714 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
715 private static final class FileSource extends Source { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
716 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
717 private final File file; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
718 private final String name; // Name used originally to describe the source |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
719 private final String path; // Normalized path description of an actual file |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
720 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
721 private String code = null; // A cache of the file's contents |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
722 private long timeStamp; // timestamp of the cache in the file system |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
723 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
724 public FileSource(File file, String name, String path) { |
19694
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
725 this(file, name, path, null); |
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
726 } |
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
727 |
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
728 public FileSource(File file, String name, String path, CharSequence chars) { |
18980
ae0eb836e6f4
store absolute file in FileSource
Lukas Stadler <lukas.stadler@oracle.com>
parents:
18979
diff
changeset
|
729 this.file = file.getAbsoluteFile(); |
16068
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
730 this.name = name; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
731 this.path = path; |
19694
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
732 if (chars != null) { |
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
733 this.code = chars.toString(); |
787b5aa53401
Truffle: new factory method for files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18980
diff
changeset
|
734 } |
16068
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
735 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
736 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
737 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
738 public String getName() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
739 return name; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
740 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
741 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
742 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
743 public String getShortName() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
744 return file.getName(); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
745 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
746 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
747 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
748 public String getCode() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
749 if (fileCacheEnabled) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
750 if (code == null || timeStamp != file.lastModified()) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
751 try { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
752 code = read(getReader()); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
753 timeStamp = file.lastModified(); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
754 } catch (IOException e) { |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
755 } |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
756 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
757 return code; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
758 } |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
759 try { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
760 return read(new FileReader(file)); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
761 } catch (IOException e) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
762 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
763 return null; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
764 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
765 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
766 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
767 public String getPath() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
768 return path; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
769 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
770 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
771 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
772 public URL getURL() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
773 return null; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
774 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
775 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
776 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
777 public Reader getReader() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
778 if (code != null && timeStamp == file.lastModified()) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
779 return new StringReader(code); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
780 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
781 try { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
782 return new FileReader(file); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
783 } catch (FileNotFoundException e) { |
18979
bdb24e259c11
include original exception in FileSource.getReader
Lukas Stadler <lukas.stadler@oracle.com>
parents:
18676
diff
changeset
|
784 |
bdb24e259c11
include original exception in FileSource.getReader
Lukas Stadler <lukas.stadler@oracle.com>
parents:
18676
diff
changeset
|
785 throw new RuntimeException("Can't find file " + path, e); |
16068
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
786 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
787 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
788 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
789 @Override |
18676
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
790 public int hashCode() { |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
791 return path.hashCode(); |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
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|
792 } |
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Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
793 |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
794 @Override |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
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diff
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|
795 public boolean equals(Object obj) { |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
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diff
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|
796 if (this == obj) { |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
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parents:
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diff
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|
797 return true; |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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18672
diff
changeset
|
798 } |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
799 if (obj instanceof FileSource) { |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
800 FileSource other = (FileSource) obj; |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
801 return path.equals(other.path); |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
802 } |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
803 return false; |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
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|
804 } |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
changeset
|
805 |
1c12cf39281d
Truffle/Source: redefine equality of FileSource objects strictly in terms of the canonicalized file path, for use as hash key.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18672
diff
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|
806 @Override |
16068
74e142bd2b12
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diff
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|
807 protected void reset() { |
74e142bd2b12
Truffle/Source: major API revision
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parents:
diff
changeset
|
808 this.code = null; |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
809 } |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
810 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
811 } |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
812 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
813 private static final class URLSource extends Source { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
814 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
815 private static final Map<URL, WeakReference<URLSource>> urlToSource = new HashMap<>(); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
816 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
817 public static URLSource get(URL url, String name) throws IOException { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
818 WeakReference<URLSource> sourceRef = urlToSource.get(url); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
819 URLSource source = sourceRef == null ? null : sourceRef.get(); |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
820 if (source == null) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
821 source = new URLSource(url, name); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
822 urlToSource.put(url, new WeakReference<>(source)); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
823 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
824 return source; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
825 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
826 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
827 private final URL url; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
828 private final String name; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
829 private String code = null; // A cache of the source contents |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
830 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
831 public URLSource(URL url, String name) throws IOException { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
832 this.url = url; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
833 this.name = name; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
834 code = read(new InputStreamReader(url.openStream())); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
835 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
836 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
837 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
838 public String getName() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
839 return name; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
840 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
841 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
842 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
843 public String getShortName() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
844 return name; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
845 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
846 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
847 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
848 public String getPath() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
849 return url.getPath(); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
850 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
851 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
852 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
853 public URL getURL() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
854 return url; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
855 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
856 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
857 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
858 public Reader getReader() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
859 return new StringReader(code); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
860 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
861 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
862 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
863 public String getCode() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
864 return code; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
865 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
866 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
867 @Override |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
868 protected void reset() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
869 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
870 |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
871 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
872 |
17066
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
873 private static final class BytesSource extends Source { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
874 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
875 private final String name; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
876 private final byte[] bytes; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
877 private final int byteIndex; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
878 private final int length; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
879 private final BytesDecoder decoder; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
880 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
881 public BytesSource(String name, byte[] bytes, int byteIndex, int length, BytesDecoder decoder) { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
882 this.name = name; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
883 this.bytes = bytes; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
884 this.byteIndex = byteIndex; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
885 this.length = length; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
886 this.decoder = decoder; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
887 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
888 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
889 @Override |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
890 protected void reset() { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
891 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
892 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
893 @Override |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
894 public String getName() { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
895 return name; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
896 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
897 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
898 @Override |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
899 public String getShortName() { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
900 return name; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
901 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
902 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
903 @Override |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
904 public String getPath() { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
905 return name; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
906 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
907 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
908 @Override |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
909 public URL getURL() { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
910 return null; |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
911 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
912 |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
913 @Override |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
914 public Reader getReader() { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
915 return null; |
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parents:
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|
916 } |
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Truffle: byte[] sources.
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|
917 |
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Truffle: byte[] sources.
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|
918 @Override |
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Chris Seaton <chris.seaton@oracle.com>
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|
919 public String getCode() { |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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diff
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|
920 return decoder.decode(bytes, byteIndex, length); |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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|
921 } |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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|
922 |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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|
923 @Override |
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Chris Seaton <chris.seaton@oracle.com>
parents:
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diff
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|
924 public String getCode(int byteOffset, int codeLength) { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
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|
925 return decoder.decode(bytes, byteIndex + byteOffset, codeLength); |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
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|
926 } |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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|
927 |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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diff
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|
928 @Override |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
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|
929 protected void checkRange(int charIndex, int rangeLength) { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
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|
930 if (!(charIndex >= 0 && rangeLength >= 0 && charIndex + rangeLength <= length)) { |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
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|
931 throw new IllegalArgumentException("text positions out of range"); |
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
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|
932 } |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
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|
933 } |
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Truffle: byte[] sources.
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parents:
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|
934 |
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Truffle: byte[] sources.
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|
935 @Override |
0bcefb0f8488
Truffle: byte[] sources.
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parents:
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|
936 protected TextMap createTextMap() { |
0bcefb0f8488
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Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
937 return TextMap.fromBytes(bytes, byteIndex, length, decoder); |
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Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
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|
938 } |
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parents:
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|
939 } |
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Truffle: byte[] sources.
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|
940 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
941 private static final class DefaultSourceSection implements SourceSection { |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
942 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
943 private final Source source; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
944 private final String identifier; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
945 private final int startLine; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
946 private final int startColumn; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
947 private final int charIndex; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
948 private final int charLength; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
949 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
950 /** |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
951 * Creates a new object representing a contiguous text section within the source code of a |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
952 * guest language program's text. |
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parents:
diff
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|
953 * <p> |
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parents:
diff
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|
954 * The starting location of the section is specified using two different coordinate: |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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|
955 * <ul> |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
956 * <li><b>(row, column)</b>: rows and columns are 1-based, so the first character in a |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
957 * source file is at position {@code (1,1)}.</li> |
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diff
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|
958 * <li><b>character index</b>: 0-based offset of the character from the beginning of the |
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parents:
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|
959 * source, so the first character in a file is at index {@code 0}.</li> |
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|
960 * </ul> |
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diff
changeset
|
961 * The <b>newline</b> that terminates each line counts as a single character for the purpose |
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diff
changeset
|
962 * of a character index. The (row,column) coordinates of a newline character should never |
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diff
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|
963 * appear in a text section. |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
964 * <p> |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
965 * |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
966 * @param source object representing the complete source program that contains this section |
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parents:
diff
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|
967 * @param identifier an identifier used when printing the section |
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diff
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|
968 * @param startLine the 1-based number of the start line of the section |
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diff
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|
969 * @param startColumn the 1-based number of the start column of the section |
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diff
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|
970 * @param charIndex the 0-based index of the first character of the section |
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diff
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|
971 * @param charLength the length of the section in number of characters |
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parents:
diff
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|
972 */ |
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diff
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|
973 public DefaultSourceSection(Source source, String identifier, int startLine, int startColumn, int charIndex, int charLength) { |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
974 this.source = source; |
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parents:
diff
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|
975 this.identifier = identifier; |
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|
976 this.startLine = startLine; |
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diff
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|
977 this.startColumn = startColumn; |
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|
978 this.charIndex = charIndex; |
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diff
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|
979 this.charLength = charLength; |
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diff
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|
980 } |
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|
981 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
982 @Override |
18163
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
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|
983 public Source getSource() { |
16068
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
984 return source; |
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changeset
|
985 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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changeset
|
986 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
987 @Override |
18163
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
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17066
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|
988 public int getStartLine() { |
16068
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diff
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|
989 return startLine; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
990 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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|
991 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
992 @Override |
18163
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
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parents:
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|
993 public LineLocation getLineLocation() { |
16068
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
994 return source.createLineLocation(startLine); |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
995 } |
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parents:
diff
changeset
|
996 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
997 @Override |
18163
c88ab4f1f04a
re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
parents:
17066
diff
changeset
|
998 public int getStartColumn() { |
16068
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
999 return startColumn; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1000 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1001 |
19695
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19694
diff
changeset
|
1002 public int getEndLine() { |
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19694
diff
changeset
|
1003 return source.getLineNumber(charIndex + charLength - 1); |
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Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
1004 } |
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19694
diff
changeset
|
1005 |
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19694
diff
changeset
|
1006 public int getEndColumn() { |
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19694
diff
changeset
|
1007 return source.getColumnNumber(charIndex + charLength - 1); |
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19694
diff
changeset
|
1008 } |
33bdafbf285d
Truffle: SourceSection can now produce the line/column coordinates of its final character
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parents:
19694
diff
changeset
|
1009 |
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|
1010 @Override |
18163
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
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|
1011 public int getCharIndex() { |
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diff
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|
1012 return charIndex; |
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|
1013 } |
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|
1014 |
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diff
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|
1015 @Override |
18163
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
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|
1016 public int getCharLength() { |
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|
1017 return charLength; |
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diff
changeset
|
1018 } |
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diff
changeset
|
1019 |
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parents:
diff
changeset
|
1020 @Override |
18163
c88ab4f1f04a
re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
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|
1021 public int getCharEndIndex() { |
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diff
changeset
|
1022 return charIndex + charLength; |
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diff
changeset
|
1023 } |
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parents:
diff
changeset
|
1024 |
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diff
changeset
|
1025 @Override |
18163
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
parents:
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changeset
|
1026 public String getIdentifier() { |
16068
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parents:
diff
changeset
|
1027 return identifier; |
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parents:
diff
changeset
|
1028 } |
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parents:
diff
changeset
|
1029 |
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parents:
diff
changeset
|
1030 @Override |
18163
c88ab4f1f04a
re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
parents:
17066
diff
changeset
|
1031 public String getCode() { |
17066
0bcefb0f8488
Truffle: byte[] sources.
Chris Seaton <chris.seaton@oracle.com>
parents:
16989
diff
changeset
|
1032 return getSource().getCode(charIndex, charLength); |
16068
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parents:
diff
changeset
|
1033 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1034 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1035 @Override |
18163
c88ab4f1f04a
re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
parents:
17066
diff
changeset
|
1036 public String getShortDescription() { |
16068
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1037 return String.format("%s:%d", source.getShortName(), startLine); |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1038 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1039 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1040 @Override |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1041 public String toString() { |
16140
7109baa7b9eb
Truffle/Source: SourceSection.toString() is now equivalent to getCode()
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
16130
diff
changeset
|
1042 return getCode(); |
16068
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1043 } |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1044 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1045 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1046 public int hashCode() { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1047 final int prime = 31; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1048 int result = 1; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1049 result = prime * result + charIndex; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1050 result = prime * result + charLength; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1051 result = prime * result + ((identifier == null) ? 0 : identifier.hashCode()); |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1052 result = prime * result + ((source == null) ? 0 : source.hashCode()); |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1053 result = prime * result + startColumn; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1054 result = prime * result + startLine; |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1055 return result; |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1056 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1057 |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1058 @Override |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1059 public boolean equals(Object obj) { |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1060 if (this == obj) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1061 return true; |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1062 } |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1063 if (obj == null) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1064 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1065 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1066 if (!(obj instanceof DefaultSourceSection)) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1067 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1068 } |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1069 DefaultSourceSection other = (DefaultSourceSection) obj; |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1070 if (charIndex != other.charIndex) { |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1071 return false; |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1072 } |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1073 if (charLength != other.charLength) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1074 return false; |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1075 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1076 if (identifier == null) { |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1077 if (other.identifier != null) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1078 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1079 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1080 } else if (!identifier.equals(other.identifier)) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1081 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1082 } |
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Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1083 if (source == null) { |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1084 if (other.source != null) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1085 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1086 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1087 } else if (!source.equals(other.source)) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1088 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1089 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1090 if (startColumn != other.startColumn) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1091 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1092 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1093 if (startLine != other.startLine) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1094 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1095 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1096 return true; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1097 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1098 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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|
1099 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1100 private static final class LineLocationImpl implements LineLocation { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1101 private final Source source; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1102 private final int line; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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changeset
|
1103 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1104 public LineLocationImpl(Source source, int line) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1105 assert source != null; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1106 this.source = source; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1107 this.line = line; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1108 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1109 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1110 @Override |
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parents:
diff
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|
1111 public Source getSource() { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1112 return source; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1113 } |
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parents:
diff
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|
1114 |
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parents:
diff
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|
1115 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1116 public int getLineNumber() { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1117 return line; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1118 } |
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parents:
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|
1119 |
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parents:
diff
changeset
|
1120 @Override |
18485
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Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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parents:
18163
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|
1121 public String getShortDescription() { |
e3c95cbbb50c
Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18163
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|
1122 return source.getShortName() + ":" + line; |
e3c95cbbb50c
Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18163
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|
1123 } |
e3c95cbbb50c
Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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parents:
18163
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|
1124 |
e3c95cbbb50c
Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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parents:
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|
1125 @Override |
16068
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changeset
|
1126 public String toString() { |
18485
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Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
18163
diff
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|
1127 return "Line[" + getShortDescription() + "]"; |
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|
1128 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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|
1129 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1130 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1131 public int hashCode() { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1132 final int prime = 31; |
74e142bd2b12
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parents:
diff
changeset
|
1133 int result = 1; |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
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|
1134 result = prime * result + line; |
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parents:
diff
changeset
|
1135 result = prime * result + source.hashCode(); |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1136 return result; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1137 } |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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changeset
|
1138 |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1139 @Override |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1140 public boolean equals(Object obj) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1141 if (this == obj) { |
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parents:
diff
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|
1142 return true; |
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parents:
diff
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|
1143 } |
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diff
changeset
|
1144 if (obj == null) { |
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parents:
diff
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|
1145 return false; |
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parents:
diff
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|
1146 } |
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parents:
diff
changeset
|
1147 if (!(obj instanceof LineLocationImpl)) { |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1148 return false; |
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parents:
diff
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|
1149 } |
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parents:
diff
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|
1150 LineLocationImpl other = (LineLocationImpl) obj; |
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parents:
diff
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|
1151 if (line != other.line) { |
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parents:
diff
changeset
|
1152 return false; |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1153 } |
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1154 return source.equals(other.source); |
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|
1155 } |
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1156 |
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1157 } |
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1158 |
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1159 /** |
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|
1160 * A utility for converting between coordinate systems in a string of text interspersed with |
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1161 * newline characters. The coordinate systems are: |
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1162 * <ul> |
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|
1163 * <li>0-based character offset from the beginning of the text, where newline characters count |
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|
1164 * as a single character and the first character in the text occupies position 0.</li> |
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1165 * <li>1-based position in the 2D space of lines and columns, in which the first position in the |
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1166 * text is at (1,1).</li> |
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1167 * </ul> |
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1168 * <p> |
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1169 * This utility is based on positions occupied by characters, not text stream positions as in a |
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|
1170 * text editor. The distinction shows up in editors where you can put the cursor just past the |
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1171 * last character in a buffer; this is necessary, among other reasons, so that you can put the |
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|
1172 * edit cursor in a new (empty) buffer. For the purposes of this utility, however, there are no |
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|
1173 * character positions in an empty text string and there are no lines in an empty text string. |
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1174 * <p> |
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1175 * A newline character designates the end of a line and occupies a column position. |
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1176 * <p> |
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1177 * If the text ends with a character other than a newline, then the characters following the |
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1178 * final newline character count as a line, even though not newline-terminated. |
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1179 * <p> |
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1180 * <strong>Limitations:</strong> |
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1181 * <ul> |
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1182 * <li>Does not handle multiple character encodings correctly.</li> |
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|
1183 * <li>Treats tabs as occupying 1 column.</li> |
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1184 * <li>Does not handle multiple-character line termination sequences correctly.</li> |
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1185 * </ul> |
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1186 */ |
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1187 private static final class TextMap { |
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1188 |
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1189 // 0-based offsets of newline characters in the text, with sentinel |
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1190 private final int[] nlOffsets; |
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1191 |
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1192 // The number of characters in the text, including newlines (which count as 1). |
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1193 private final int textLength; |
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1194 |
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1195 // Is the final text character a newline? |
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1196 final boolean finalNL; |
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1197 |
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1198 public TextMap(int[] nlOffsets, int textLength, boolean finalNL) { |
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1199 this.nlOffsets = nlOffsets; |
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1200 this.textLength = textLength; |
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1201 this.finalNL = finalNL; |
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1202 } |
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1203 |
16130
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1204 /** |
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1205 * Constructs map permitting translation between 0-based character offsets and 1-based |
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1206 * lines/columns. |
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1207 */ |
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1208 public static TextMap fromString(String text) { |
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1209 final int textLength = text.length(); |
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1210 final ArrayList<Integer> lines = new ArrayList<>(); |
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1211 lines.add(0); |
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1212 int offset = 0; |
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1213 |
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1214 while (offset < text.length()) { |
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1215 final int nlIndex = text.indexOf('\n', offset); |
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1216 if (nlIndex >= 0) { |
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1217 offset = nlIndex + 1; |
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1218 lines.add(offset); |
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1219 } else { |
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1220 break; |
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1221 } |
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1222 } |
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1223 lines.add(Integer.MAX_VALUE); |
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1224 |
17066
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1225 final int[] nlOffsets = new int[lines.size()]; |
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1226 for (int line = 0; line < lines.size(); line++) { |
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1227 nlOffsets[line] = lines.get(line); |
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1228 } |
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1229 |
17066
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1230 final boolean finalNL = textLength > 0 && (textLength == nlOffsets[nlOffsets.length - 2]); |
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1231 |
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1232 return new TextMap(nlOffsets, textLength, finalNL); |
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1233 } |
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1234 |
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1235 public static TextMap fromBytes(byte[] bytes, int byteIndex, int length, BytesDecoder bytesDecoder) { |
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1236 final ArrayList<Integer> lines = new ArrayList<>(); |
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1237 lines.add(0); |
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1238 |
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1239 bytesDecoder.decodeLines(bytes, byteIndex, length, new BytesDecoder.LineMarker() { |
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1240 |
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1241 public void markLine(int index) { |
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1242 lines.add(index); |
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1243 } |
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1244 }); |
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1245 |
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1246 lines.add(Integer.MAX_VALUE); |
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1247 |
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1248 final int[] nlOffsets = new int[lines.size()]; |
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1249 for (int line = 0; line < lines.size(); line++) { |
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1250 nlOffsets[line] = lines.get(line); |
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1251 } |
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1252 |
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1253 final boolean finalNL = length > 0 && (length == nlOffsets[nlOffsets.length - 2]); |
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1254 |
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1255 return new TextMap(nlOffsets, length, finalNL); |
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1256 } |
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1257 |
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1258 /** |
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1259 * Converts 0-based character offset to 1-based number of the line containing the character. |
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1260 * |
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1261 * @throws IllegalArgumentException if the offset is outside the string. |
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1262 */ |
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|
1263 public int offsetToLine(int offset) throws IllegalArgumentException { |
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|
1264 if (offset < 0 || offset >= textLength) { |
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|
1265 throw new IllegalArgumentException("offset out of bounds"); |
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1266 } |
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1267 int line = 1; |
6f7d3f3703d3
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diff
changeset
|
1268 while (offset >= nlOffsets[line]) { |
6f7d3f3703d3
Truffle/Source:
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parents:
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diff
changeset
|
1269 line++; |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1270 } |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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diff
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|
1271 return line; |
6f7d3f3703d3
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|
1272 } |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1273 |
6f7d3f3703d3
Truffle/Source:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
1274 /** |
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diff
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|
1275 * Converts 0-based character offset to 1-based number of the column occupied by the |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1276 * character. |
6f7d3f3703d3
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parents:
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diff
changeset
|
1277 * <p> |
6f7d3f3703d3
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parents:
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diff
changeset
|
1278 * Tabs are not expanded; they occupy 1 column. |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1279 * |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1280 * @throws IllegalArgumentException if the offset is outside the string. |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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diff
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|
1281 */ |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1282 public int offsetToCol(int offset) throws IllegalArgumentException { |
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parents:
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diff
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|
1283 return 1 + offset - nlOffsets[offsetToLine(offset) - 1]; |
6f7d3f3703d3
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parents:
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changeset
|
1284 } |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
1285 |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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diff
changeset
|
1286 /** |
19697
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1287 * The number of characters in the mapped text. |
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1288 */ |
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1289 public int length() { |
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1290 return textLength; |
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1291 } |
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1292 |
c152a485d747
Truffle: new method Source.getLength() and semantic adjustments to the new factory method for creating files whose contents have already been read.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
19695
diff
changeset
|
1293 /** |
16130
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|
1294 * The number of lines in the text; if characters appear after the final newline, then they |
6f7d3f3703d3
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parents:
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diff
changeset
|
1295 * also count as a line, even though not newline-terminated. |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
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|
1296 */ |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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|
1297 public int lineCount() { |
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diff
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|
1298 if (textLength == 0) { |
6f7d3f3703d3
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
1299 return 0; |
6f7d3f3703d3
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|
1300 } |
6f7d3f3703d3
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|
1301 return finalNL ? nlOffsets.length - 2 : nlOffsets.length - 1; |
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|
1302 } |
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|
1303 |
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|
1304 /** |
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diff
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|
1305 * Converts 1-based line number to the 0-based offset of the line's first character; this |
6f7d3f3703d3
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diff
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|
1306 * would be the offset of a newline if the line is empty. |
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|
1307 * |
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diff
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|
1308 * @throws IllegalArgumentException if there is no such line in the text. |
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|
1309 */ |
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|
1310 public int lineStartOffset(int line) throws IllegalArgumentException { |
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|
1311 if (textLength == 0 || lineOutOfRange(line)) { |
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diff
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|
1312 throw new IllegalArgumentException("line out of bounds"); |
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|
1313 } |
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|
1314 return nlOffsets[line - 1]; |
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|
1315 } |
6f7d3f3703d3
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|
1316 |
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|
1317 /** |
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|
1318 * Gets the number of characters in a line, identified by 1-based line number; |
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|
1319 * <em>does not</em> include the final newline, if any. |
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|
1320 * |
6f7d3f3703d3
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|
1321 * @throws IllegalArgumentException if there is no such line in the text. |
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|
1322 */ |
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|
1323 public int lineLength(int line) throws IllegalArgumentException { |
6f7d3f3703d3
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changeset
|
1324 if (textLength == 0 || lineOutOfRange(line)) { |
6f7d3f3703d3
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diff
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|
1325 throw new IllegalArgumentException("line out of bounds"); |
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|
1326 } |
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changeset
|
1327 if (line == nlOffsets.length - 1 && !finalNL) { |
6f7d3f3703d3
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|
1328 return textLength - nlOffsets[line - 1]; |
6f7d3f3703d3
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|
1329 } |
6f7d3f3703d3
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changeset
|
1330 return (nlOffsets[line] - nlOffsets[line - 1]) - 1; |
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|
1331 |
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|
1332 } |
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|
1333 |
6f7d3f3703d3
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|
1334 /** |
6f7d3f3703d3
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|
1335 * Is the line number out of range. |
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|
1336 */ |
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|
1337 private boolean lineOutOfRange(int line) { |
6f7d3f3703d3
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diff
changeset
|
1338 return line <= 0 || line >= nlOffsets.length || (line == nlOffsets.length - 1 && finalNL); |
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
1339 } |
74e142bd2b12
Truffle/Source: major API revision
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
diff
changeset
|
1340 |
74e142bd2b12
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
1341 } |
16130
6f7d3f3703d3
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diff
changeset
|
1342 |
16068
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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diff
changeset
|
1343 } |