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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ParseException.java | 0% | 0% | 0% | 0% |
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/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 2.1 */
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package xjavadoc;
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/**
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* This exception is thrown when parse errors are encountered.
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* You can explicitly create objects of this exception type by
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* calling the method generateParseException in the generated
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* parser.
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*
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* You can modify this class to customize your error reporting
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* mechanisms so long as you retain the public fields.
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*/
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public class ParseException extends Exception { |
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/**
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* This constructor is used by the method "generateParseException"
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* in the generated parser. Calling this constructor generates
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* a new object of this type with the fields "currentToken",
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* "expectedTokenSequences", and "tokenImage" set. The boolean
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* flag "specialConstructor" is also set to true to indicate that
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* this constructor was used to create this object.
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* This constructor calls its super class with the empty string
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* to force the "toString" method of parent class "Throwable" to
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* print the error message in the form:
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* ParseException: <result of getMessage>
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*/
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public ParseException(Token currentTokenVal,
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int[][] expectedTokenSequencesVal,
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String[] tokenImageVal |
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) |
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{ |
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super(""); |
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specialConstructor = true;
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currentToken = currentTokenVal; |
35 | 0 |
expectedTokenSequences = expectedTokenSequencesVal; |
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tokenImage = tokenImageVal; |
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} |
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/**
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* The following constructors are for use by you for whatever
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* purpose you can think of. Constructing the exception in this
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* manner makes the exception behave in the normal way - i.e., as
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* documented in the class "Throwable". The fields "errorToken",
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* "expectedTokenSequences", and "tokenImage" do not contain
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* relevant information. The JavaCC generated code does not use
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* these constructors.
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*/
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public ParseException() {
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super();
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specialConstructor = false;
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} |
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public ParseException(String message) {
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super(message);
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specialConstructor = false;
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} |
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/**
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* This variable determines which constructor was used to create
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* this object and thereby affects the semantics of the
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* "getMessage" method (see below).
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*/
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protected boolean specialConstructor; |
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/**
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* This is the last token that has been consumed successfully. If
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* this object has been created due to a parse error, the token
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* followng this token will (therefore) be the first error token.
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*/
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public Token currentToken;
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/**
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* Each entry in this array is an array of integers. Each array
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* of integers represents a sequence of tokens (by their ordinal
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* values) that is expected at this point of the parse.
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*/
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public int[][] expectedTokenSequences; |
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/**
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* This is a reference to the "tokenImage" array of the generated
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* parser within which the parse error occurred. This array is
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* defined in the generated ...Constants interface.
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*/
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public String[] tokenImage;
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/**
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* This method has the standard behavior when this object has been
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* created using the standard constructors. Otherwise, it uses
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* "currentToken" and "expectedTokenSequences" to generate a parse
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* error message and returns it. If this object has been created
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* due to a parse error, and you do not catch it (it gets thrown
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* from the parser), then this method is called during the printing
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* of the final stack trace, and hence the correct error message
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* gets displayed.
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*/
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public String getMessage() {
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if (!specialConstructor) {
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return super.getMessage(); |
100 |
} |
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101 | 0 |
String expected = "";
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102 | 0 |
int maxSize = 0;
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103 | 0 |
for (int i = 0; i < expectedTokenSequences.length; i++) { |
104 | 0 |
if (maxSize < expectedTokenSequences[i].length) {
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105 | 0 |
maxSize = expectedTokenSequences[i].length; |
106 |
} |
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107 | 0 |
for (int j = 0; j < expectedTokenSequences[i].length; j++) { |
108 | 0 |
expected += tokenImage[expectedTokenSequences[i][j]] + " ";
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} |
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110 | 0 |
if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
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111 | 0 |
expected += "...";
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} |
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113 | 0 |
expected += eol + " ";
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} |
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115 | 0 |
String retval = "Encountered \"";
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116 | 0 |
Token tok = currentToken.next; |
117 | 0 |
for (int i = 0; i < maxSize; i++) { |
118 | 0 |
if (i != 0) retval += " "; |
119 | 0 |
if (tok.kind == 0) {
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120 | 0 |
retval += tokenImage[0]; |
121 | 0 |
break;
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} |
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123 | 0 |
retval += add_escapes(tok.image); |
124 | 0 |
tok = tok.next; |
125 |
} |
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126 | 0 |
retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn; |
127 | 0 |
retval += "." + eol;
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128 | 0 |
if (expectedTokenSequences.length == 1) {
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129 | 0 |
retval += "Was expecting:" + eol + " "; |
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} else {
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131 | 0 |
retval += "Was expecting one of:" + eol + " "; |
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} |
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133 | 0 |
retval += expected; |
134 | 0 |
return retval;
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} |
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/**
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* The end of line string for this machine.
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*/
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protected String eol = System.getProperty("line.separator", "\n"); |
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/**
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* Used to convert raw characters to their escaped version
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* when these raw version cannot be used as part of an ASCII
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* string literal.
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*/
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147 | 0 |
protected String add_escapes(String str) {
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148 | 0 |
StringBuffer retval = new StringBuffer();
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149 | 0 |
char ch;
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150 | 0 |
for (int i = 0; i < str.length(); i++) { |
151 | 0 |
switch (str.charAt(i))
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{ |
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case 0 :
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continue;
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case '\b':
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156 | 0 |
retval.append("\\b");
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157 | 0 |
continue;
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case '\t':
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159 | 0 |
retval.append("\\t");
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160 | 0 |
continue;
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case '\n':
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162 | 0 |
retval.append("\\n");
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163 | 0 |
continue;
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case '\f':
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165 | 0 |
retval.append("\\f");
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166 | 0 |
continue;
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case '\r':
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168 | 0 |
retval.append("\\r");
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169 | 0 |
continue;
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case '\"':
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171 | 0 |
retval.append("\\\"");
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172 | 0 |
continue;
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case '\'':
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174 | 0 |
retval.append("\\\'");
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175 | 0 |
continue;
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case '\\':
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177 | 0 |
retval.append("\\\\");
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178 | 0 |
continue;
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default:
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180 | 0 |
if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
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181 | 0 |
String s = "0000" + Integer.toString(ch, 16);
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182 | 0 |
retval.append("\\u" + s.substring(s.length() - 4, s.length()));
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} else {
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184 | 0 |
retval.append(ch); |
185 |
} |
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186 | 0 |
continue;
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} |
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} |
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189 | 0 |
return retval.toString();
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190 |
} |
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191 |
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} |
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193 |
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