Coverage report

| %line | %branch
--- | --- | ---
org.apache.commons.jexl.parser.ParseException |
56% |
91% |

1 |  |
     /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 2.1 */
2 |  |
     package org.apache.commons.jexl.parser;
3 |  |
4 |  |
     /**
5 |  |
      * This exception is thrown when parse errors are encountered.
6 |  |
      * You can explicitly create objects of this exception type by
7 |  |
      * calling the method generateParseException in the generated
8 |  |
      * parser.
9 |  |
      *
10 |  |
      * You can modify this class to customize your error reporting
11 |  |
      * mechanisms so long as you retain the public fields.
12 |  |
      */
13 |  |
     public class ParseException extends Exception {
14 |  |
15 |  |
       /**
16 |  |
        * This constructor is used by the method "generateParseException"
17 |  |
        * in the generated parser.  Calling this constructor generates
18 |  |
        * a new object of this type with the fields "currentToken",
19 |  |
        * "expectedTokenSequences", and "tokenImage" set.  The boolean
20 |  |
        * flag "specialConstructor" is also set to true to indicate that
21 |  |
        * this constructor was used to create this object.
22 |  |
        * This constructor calls its super class with the empty string
23 |  |
        * to force the "toString" method of parent class "Throwable" to
24 |  |
        * print the error message in the form:
25 |  |
        *     ParseException: <result of getMessage>
26 |  |
        */
27 |  |
       public ParseException(Token currentTokenVal,
28 |  |
                             int[][] expectedTokenSequencesVal,
29 |  |
                             String[] tokenImageVal
30 |  |
                            )
31 |  |
       {
32 | 15 |
         super("");
33 | 15 |
         specialConstructor = true;
34 | 15 |
         currentToken = currentTokenVal;
35 | 15 |
         expectedTokenSequences = expectedTokenSequencesVal;
36 | 15 |
         tokenImage = tokenImageVal;
37 | 15 |
       }
38 |  |
39 |  |
       /**
40 |  |
        * The following constructors are for use by you for whatever
41 |  |
        * purpose you can think of.  Constructing the exception in this
42 |  |
        * manner makes the exception behave in the normal way - i.e., as
43 |  |
        * documented in the class "Throwable".  The fields "errorToken",
44 |  |
        * "expectedTokenSequences", and "tokenImage" do not contain
45 |  |
        * relevant information.  The JavaCC generated code does not use
46 |  |
        * these constructors.
47 |  |
        */
48 |  |
49 |  |
       public ParseException() {
50 | 0 |
         super();
51 | 0 |
         specialConstructor = false;
52 | 0 |
       }
53 |  |
54 |  |
       public ParseException(String message) {
55 | 0 |
         super(message);
56 | 0 |
         specialConstructor = false;
57 | 0 |
       }
58 |  |
59 |  |
       /**
60 |  |
        * This variable determines which constructor was used to create
61 |  |
        * this object and thereby affects the semantics of the
62 |  |
        * "getMessage" method (see below).
63 |  |
        */
64 |  |
       protected boolean specialConstructor;
65 |  |
66 |  |
       /**
67 |  |
        * This is the last token that has been consumed successfully.  If
68 |  |
        * this object has been created due to a parse error, the token
69 |  |
        * followng this token will (therefore) be the first error token.
70 |  |
        */
71 |  |
       public Token currentToken;
72 |  |
73 |  |
       /**
74 |  |
        * Each entry in this array is an array of integers.  Each array
75 |  |
        * of integers represents a sequence of tokens (by their ordinal
76 |  |
        * values) that is expected at this point of the parse.
77 |  |
        */
78 |  |
       public int[][] expectedTokenSequences;
79 |  |
80 |  |
       /**
81 |  |
        * This is a reference to the "tokenImage" array of the generated
82 |  |
        * parser within which the parse error occurred.  This array is
83 |  |
        * defined in the generated ...Constants interface.
84 |  |
        */
85 |  |
       public String[] tokenImage;
86 |  |
87 |  |
       /**
88 |  |
        * This method has the standard behavior when this object has been
89 |  |
        * created using the standard constructors.  Otherwise, it uses
90 |  |
        * "currentToken" and "expectedTokenSequences" to generate a parse
91 |  |
        * error message and returns it.  If this object has been created
92 |  |
        * due to a parse error, and you do not catch it (it gets thrown
93 |  |
        * from the parser), then this method is called during the printing
94 |  |
        * of the final stack trace, and hence the correct error message
95 |  |
        * gets displayed.
96 |  |
        */
97 |  |
       public String getMessage() {
98 | 15 |
         if (!specialConstructor) {
99 | 0 |
           return super.getMessage();
100 |  |
         }
101 | 15 |
         String expected = "";
102 | 15 |
         int maxSize = 0;
103 | 30 |
         for (int i = 0; i < expectedTokenSequences.length; i++) {
104 | 15 |
           if (maxSize < expectedTokenSequences[i].length) {
105 | 15 |
             maxSize = expectedTokenSequences[i].length;
106 |  |
           }
107 | 30 |
           for (int j = 0; j < expectedTokenSequences[i].length; j++) {
108 | 15 |
             expected += tokenImage[expectedTokenSequences[i][j]] + " ";
109 |  |
           }
110 | 15 |
           if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
111 | 15 |
             expected += "...";
112 |  |
           }
113 | 15 |
           expected += eol + "    ";
114 |  |
         }
115 | 15 |
         String retval = "Encountered \"";
116 | 15 |
         Token tok = currentToken.next;
117 | 30 |
         for (int i = 0; i < maxSize; i++) {
118 | 15 |
           if (i != 0) retval += " ";
119 | 15 |
           if (tok.kind == 0) {
120 | 0 |
             retval += tokenImage[0];
121 | 0 |
             break;
122 |  |
           }
123 | 15 |
           retval += add_escapes(tok.image);
124 | 15 |
           tok = tok.next;
125 |  |
         }
126 | 15 |
         retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
127 | 15 |
         retval += "." + eol;
128 | 15 |
         if (expectedTokenSequences.length == 1) {
129 | 15 |
           retval += "Was expecting:" + eol + "    ";
130 |  |
         } else {
131 | 0 |
           retval += "Was expecting one of:" + eol + "    ";
132 |  |
         }
133 | 15 |
         retval += expected;
134 | 15 |
         return retval;
135 |  |
       }
136 |  |
137 |  |
       /**
138 |  |
        * The end of line string for this machine.
139 |  |
        */
140 | 15 |
       protected String eol = System.getProperty("line.separator", "\n");
141 |  |
142 |  |
       /**
143 |  |
        * Used to convert raw characters to their escaped version
144 |  |
        * when these raw version cannot be used as part of an ASCII
145 |  |
        * string literal.
146 |  |
        */
147 |  |
       protected String add_escapes(String str) {
148 | 15 |
           StringBuffer retval = new StringBuffer();
149 |  |
           char ch;
150 | 30 |
           for (int i = 0; i < str.length(); i++) {
151 | 15 |
             switch (str.charAt(i))
152 |  |
             {
153 |  |
                case 0 :
154 | 0 |
                   continue;
155 |  |
                case '\b':
156 | 0 |
                   retval.append("\\b");
157 | 0 |
                   continue;
158 |  |
                case '\t':
159 | 0 |
                   retval.append("\\t");
160 | 0 |
                   continue;
161 |  |
                case '\n':
162 | 0 |
                   retval.append("\\n");
163 | 0 |
                   continue;
164 |  |
                case '\f':
165 | 0 |
                   retval.append("\\f");
166 | 0 |
                   continue;
167 |  |
                case '\r':
168 | 0 |
                   retval.append("\\r");
169 | 0 |
                   continue;
170 |  |
                case '\"':
171 | 0 |
                   retval.append("\\\"");
172 | 0 |
                   continue;
173 |  |
                case '\'':
174 | 0 |
                   retval.append("\\\'");
175 | 0 |
                   continue;
176 |  |
                case '\\':
177 | 0 |
                   retval.append("\\\\");
178 | 0 |
                   continue;
179 |  |
                default:
180 | 15 |
                   if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
181 | 0 |
                      String s = "0000" + Integer.toString(ch, 16);
182 | 0 |
                      retval.append("\\u" + s.substring(s.length() - 4, s.length()));
183 |  |
                   } else {
184 | 15 |
                      retval.append(ch);
185 |  |
                   }
186 |  |
                   continue;
187 |  |
             }
188 |  |
           }
189 | 15 |
           return retval.toString();
190 |  |
        }
191 |  |
192 |  |
     }

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