Mercurial Hosting > luan

annotate src/luan/LuaSource.java @ 40:e3624b7cd603

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implement stack trace git-svn-id: https://luan-java.googlecode.com/svn/trunk@41 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 21 Dec 2012 10:45:54 +0000
parents
children c53dc854e6cc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
40
e3624b7cd603 implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan;
e3624b7cd603 implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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4 public final class LuaSource {
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5 public final String name;
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6 public final String text;
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8 public LuaSource(String name,String text) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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9 this.name = name;
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10 this.text = text;
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11 }
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13 public static final class Element extends LuaElement {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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14 public final LuaSource source;
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15 public final int start;
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16 public final int end;
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18 public Element(LuaSource source,int start,int end) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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19 if( source==null )
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20 throw new NullPointerException("source is null");
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21 this.source = source;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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22 this.start = start;
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23 this.end = end;
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24 }
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26 public String text() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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27 return source.text.substring(start,end);
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28 }
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30 @Override public String toString(String fnName) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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31 return source.name + ':' + lineNumber() + ": in " + function(fnName);
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32 }
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34 private int lineNumber() {
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35 int line = 0;
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36 int i = -1;
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37 do {
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38 line++;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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39 i = source.text.indexOf('\n',i+1);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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40 } while( i != -1 && i < start );
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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41 return line;
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42 }
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44 }
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45 }