Clover coverage report - Code Coverage for hivemind release 1.0-beta-1
Coverage timestamp: Sat Jul 3 2004 09:41:37 EDT
file stats: LOC: 208   Methods: 0
NCLOC: 110   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
ParseException.java - - - -
coverage
 1   
 /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 2.1 */
 2   
 //  Copyright 2004 The Apache Software Foundation
 3   
 //
 4   
 // Licensed under the Apache License, Version 2.0 (the "License");
 5   
 // you may not use this file except in compliance with the License.
 6   
 // You may obtain a copy of the License at
 7   
 //
 8   
 //     http://www.apache.org/licenses/LICENSE-2.0
 9   
 //
 10   
 // Unless required by applicable law or agreed to in writing, software
 11   
 // distributed under the License is distributed on an "AS IS" BASIS,
 12   
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13   
 // See the License for the specific language governing permissions and
 14   
 // limitations under the License.
 15   
 
 16   
 ///CLOVER:OFF
 17   
 package org.apache.hivemind.sdl.parser;
 18   
 
 19   
 /**
 20   
  * This exception is thrown when parse errors are encountered.
 21   
  * You can explicitly create objects of this exception type by
 22   
  * calling the method generateParseException in the generated
 23   
  * parser.
 24   
  *
 25   
  * You can modify this class to customize your error reporting
 26   
  * mechanisms so long as you retain the public fields.
 27   
  */
 28   
 public class ParseException extends Exception {
 29   
 
 30   
   /**
 31   
    * This constructor is used by the method "generateParseException"
 32   
    * in the generated parser.  Calling this constructor generates
 33   
    * a new object of this type with the fields "currentToken",
 34   
    * "expectedTokenSequences", and "tokenImage" set.  The boolean
 35   
    * flag "specialConstructor" is also set to true to indicate that
 36   
    * this constructor was used to create this object.
 37   
    * This constructor calls its super class with the empty string
 38   
    * to force the "toString" method of parent class "Throwable" to
 39   
    * print the error message in the form:
 40   
    *     ParseException: <result of getMessage>
 41   
    */
 42   
   public ParseException(Token currentTokenVal,
 43   
                         int[][] expectedTokenSequencesVal,
 44   
                         String[] tokenImageVal
 45   
                        )
 46   
   {
 47   
     super("");
 48   
     specialConstructor = true;
 49   
     currentToken = currentTokenVal;
 50   
     expectedTokenSequences = expectedTokenSequencesVal;
 51   
     tokenImage = tokenImageVal;
 52   
   }
 53   
 
 54   
   /**
 55   
    * The following constructors are for use by you for whatever
 56   
    * purpose you can think of.  Constructing the exception in this
 57   
    * manner makes the exception behave in the normal way - i.e., as
 58   
    * documented in the class "Throwable".  The fields "errorToken",
 59   
    * "expectedTokenSequences", and "tokenImage" do not contain
 60   
    * relevant information.  The JavaCC generated code does not use
 61   
    * these constructors.
 62   
    */
 63   
 
 64   
   public ParseException() {
 65   
     super();
 66   
     specialConstructor = false;
 67   
   }
 68   
 
 69   
   public ParseException(String message) {
 70   
     super(message);
 71   
     specialConstructor = false;
 72   
   }
 73   
 
 74   
   /**
 75   
    * This variable determines which constructor was used to create
 76   
    * this object and thereby affects the semantics of the
 77   
    * "getMessage" method (see below).
 78   
    */
 79   
   protected boolean specialConstructor;
 80   
 
 81   
   /**
 82   
    * This is the last token that has been consumed successfully.  If
 83   
    * this object has been created due to a parse error, the token
 84   
    * followng this token will (therefore) be the first error token.
 85   
    */
 86   
   public Token currentToken;
 87   
 
 88   
   /**
 89   
    * Each entry in this array is an array of integers.  Each array
 90   
    * of integers represents a sequence of tokens (by their ordinal
 91   
    * values) that is expected at this point of the parse.
 92   
    */
 93   
   public int[][] expectedTokenSequences;
 94   
 
 95   
   /**
 96   
    * This is a reference to the "tokenImage" array of the generated
 97   
    * parser within which the parse error occurred.  This array is
 98   
    * defined in the generated ...Constants interface.
 99   
    */
 100   
   public String[] tokenImage;
 101   
 
 102   
   /**
 103   
    * This method has the standard behavior when this object has been
 104   
    * created using the standard constructors.  Otherwise, it uses
 105   
    * "currentToken" and "expectedTokenSequences" to generate a parse
 106   
    * error message and returns it.  If this object has been created
 107   
    * due to a parse error, and you do not catch it (it gets thrown
 108   
    * from the parser), then this method is called during the printing
 109   
    * of the final stack trace, and hence the correct error message
 110   
    * gets displayed.
 111   
    */
 112   
   public String getMessage() {
 113   
     if (!specialConstructor) {
 114   
       return super.getMessage();
 115   
     }
 116   
     String expected = "";
 117   
     int maxSize = 0;
 118   
     for (int i = 0; i < expectedTokenSequences.length; i++) {
 119   
       if (maxSize < expectedTokenSequences[i].length) {
 120   
         maxSize = expectedTokenSequences[i].length;
 121   
       }
 122   
       for (int j = 0; j < expectedTokenSequences[i].length; j++) {
 123   
         expected += tokenImage[expectedTokenSequences[i][j]] + " ";
 124   
       }
 125   
       if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
 126   
         expected += "...";
 127   
       }
 128   
       expected += eol + "    ";
 129   
     }
 130   
     String retval = "Encountered \"";
 131   
     Token tok = currentToken.next;
 132   
     for (int i = 0; i < maxSize; i++) {
 133   
       if (i != 0) retval += " ";
 134   
       if (tok.kind == 0) {
 135   
         retval += tokenImage[0];
 136   
         break;
 137   
       }
 138   
       retval += add_escapes(tok.image);
 139   
       tok = tok.next; 
 140   
     }
 141   
     retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
 142   
     retval += "." + eol;
 143   
     if (expectedTokenSequences.length == 1) {
 144   
       retval += "Was expecting:" + eol + "    ";
 145   
     } else {
 146   
       retval += "Was expecting one of:" + eol + "    ";
 147   
     }
 148   
     retval += expected;
 149   
     return retval;
 150   
   }
 151   
 
 152   
   /**
 153   
    * The end of line string for this machine.
 154   
    */
 155   
   protected String eol = System.getProperty("line.separator", "\n");
 156   
  
 157   
   /**
 158   
    * Used to convert raw characters to their escaped version
 159   
    * when these raw version cannot be used as part of an ASCII
 160   
    * string literal.
 161   
    */
 162   
   protected String add_escapes(String str) {
 163   
       StringBuffer retval = new StringBuffer();
 164   
       char ch;
 165   
       for (int i = 0; i < str.length(); i++) {
 166   
         switch (str.charAt(i))
 167   
         {
 168   
            case 0 :
 169   
               continue;
 170   
            case '\b':
 171   
               retval.append("\\b");
 172   
               continue;
 173   
            case '\t':
 174   
               retval.append("\\t");
 175   
               continue;
 176   
            case '\n':
 177   
               retval.append("\\n");
 178   
               continue;
 179   
            case '\f':
 180   
               retval.append("\\f");
 181   
               continue;
 182   
            case '\r':
 183   
               retval.append("\\r");
 184   
               continue;
 185   
            case '\"':
 186   
               retval.append("\\\"");
 187   
               continue;
 188   
            case '\'':
 189   
               retval.append("\\\'");
 190   
               continue;
 191   
            case '\\':
 192   
               retval.append("\\\\");
 193   
               continue;
 194   
            default:
 195   
               if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
 196   
                  String s = "0000" + Integer.toString(ch, 16);
 197   
                  retval.append("\\u" + s.substring(s.length() - 4, s.length()));
 198   
               } else {
 199   
                  retval.append(ch);
 200   
               }
 201   
               continue;
 202   
         }
 203   
       }
 204   
       return retval.toString();
 205   
    }
 206   
 
 207   
 }
 208