exceptions.h

   1 /*
   2  *  exceptions.h
   3  *  openc2e
   4  *
   5  *  Created by Alyssa Milburn on Sat 13 Nov 2004.
   6  *  Copyright (c) 2004-2005 Alyssa Milburn. All rights reserved.
   7  *  Copyright (c) 2005-2006 Bryan Donlan. All rights reserved.
   8  *
   9  *  This library is free software; you can redistribute it and/or
  10  *  modify it under the terms of the GNU Lesser General Public
  11  *  License as published by the Free Software Foundation; either
  12  *  version 2 of the License, or (at your option) any later version.
  13  *
  14  *  This library is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  *  Lesser General Public License for more details.
  18  *
  19  */
  20 #ifndef __C2EEXCEPTIONS_H
  21 #define __C2EEXCEPTIONS_H
  22
  23 #include <exception>
  24 #include <cstdlib>
  25 #include <string>
  26 #include <vector>
  27 #include <sstream>
  28 #include <assert.h>
  29 #include <boost/shared_ptr.hpp>
  30 #include <boost/scoped_ptr.hpp>
  31
  32 class script;
  33
  34 class creaturesException : public std::exception {
  35 protected:
  36         bool malloced;
  37         const char *r;
  38
  39
  40 public:
  41         virtual std::string prettyPrint() const { return std::string(what()); }
  42         creaturesException(const creaturesException &e) throw() : std::exception() {
  43                 // catch clause missing & etc, we'll try to patch over it but you should fix it really.
  44                 fprintf(stderr, "QA: creaturesException copy constructor called.\n");
  45                 r = strdup(e.r);
  46                 malloced = true;
  47         }
  48         creaturesException(const char *s) throw() { r = s; malloced = false; }
  49         creaturesException(const std::string &s) throw() {
  50                 r = strdup(s.c_str());
  51                 if (!r) {
  52                         abort();
  53                 }
  54                 malloced = true;
  55         }
  56         ~creaturesException() throw() {
  57                 if (malloced) free((void *)r);
  58         }
  59         const char* what() const throw() { return r; }
  60 };
  61
  62 class caosException : public creaturesException {
  63         protected:
  64                 boost::shared_ptr<class script> script;
  65                 int traceindex;
  66
  67         public:
  68                 /* debug hook, removeme */
  69                 virtual const char *what() const throw() { return this->creaturesException::what(); }
  70
  71                 ~caosException() throw() { }
  72
  73                 caosException(const std::string &d) throw() : creaturesException(d), traceindex(-1) { }
  74
  75                 caosException(const char *d) throw() : creaturesException(d), traceindex(-1) { }
  76
  77                 void trace(boost::shared_ptr<class script> scr, int traceindex = -1) throw();
  78
  79                 virtual std::string prettyPrint() const;
  80 };
  81
  82
  83
  84 static inline std::string buildExceptionString(const char *s, const char *file, int line) {
  85         std::ostringstream oss;
  86         oss << s << " at " << file << ':' << line;
  87         return oss.str();
  88 }
  89
  90
  91 struct tracedAssertFailure : public creaturesException {
  92         tracedAssertFailure(const char *s, const char *file, int line)
  93         : creaturesException(buildExceptionString(s, file, line)) { }
  94 };
  95
  96
  97 class tokeniseFailure : public creaturesException {
  98 public:
  99         tokeniseFailure(const char *s) throw() : creaturesException(s) { }
 100         tokeniseFailure(const std::string &s) throw() : creaturesException(s) { }
 101 };
 102
 103 class parseFailure : public creaturesException {
 104 public:
 105         parseFailure(const char *s) throw()
 106                 : creaturesException(s), lineno(-1) { }
 107         parseFailure(const std::string &s) throw()
 108                 : creaturesException(s), lineno(-1) { }
 109         ~parseFailure() throw() { }
 110
 111         boost::shared_ptr<std::vector<class token> > context;
 112         int ctxoffset;
 113         std::string filename;
 114         int lineno;
 115
 116         std::string prettyPrint() const;
 117 };
 118
 119 typedef parseFailure parseException;
 120
 121 class genomeException : public creaturesException {
 122 public:
 123         genomeException(const char *s) throw() : creaturesException(s) { }
 124         genomeException(const std::string &s) throw() : creaturesException(s) { }
 125 };
 126
 127 #endif
 128 /* vim: set noet: */