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major update to way Exceptions are written, now use std::exception

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This commit is contained in:
James Turk 2005-02-27 05:51:59 +00:00
parent 7471a2b4e6
commit 2d2b0fcece
2 changed files with 42 additions and 73 deletions
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70
include/exceptions.hpp
View File

@ -5,7 +5,7 @@
// James Turk (jpt2433@rit.edu)
//
// Version:
// $Id: exceptions.hpp,v 1.2 2005/02/16 06:58:05 cozman Exp $
// $Id: exceptions.hpp,v 1.3 2005/02/27 05:51:59 cozman Exp $
#ifndef PHOTON_EXCEPTIONS_HPP
#define PHOTON_EXCEPTIONS_HPP
@ -48,7 +48,8 @@ public:
uint line=0) throw();
virtual ~Throwable() throw()=0;
std::string getDesc() const throw();
std::string virtual what() const throw();
friend std::ostream& operator<<(std::ostream& os, const Throwable& rhs);
private:
std::string description_;
@ -61,12 +62,9 @@ private:
// it, and it inherits from <Throwable>.
// Exception should be used for hard to classify exceptions.
//
// Exception's children should be used when a problem occurs which is
// Exception and children should be used when a problem occurs which is
// recoverable.
//
// Operators:
// ostream&<<
//
// See Also:
// <Error>
//
@ -84,17 +82,13 @@ public:
Exception(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const Exception& rhs);
std::string what() const throw();
};
// Class: ArgumentException
// ArgumentException should be thrown when an argument is passed to a function
// that is invalid.
//
// Operators:
// ostream&<<
//
// Parent:
// <Exception>
class ArgumentException : public Exception
@ -103,16 +97,12 @@ public:
ArgumentException(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const ArgumentException& rhs);
std::string what() const throw();
};
// Class: PreconditionException
// PreconditionException should be thrown when a precondition is not met.
//
// Operators:
// ostream&<<
//
// Parent:
// <Exception>
class PreconditionException : public Exception
@ -121,61 +111,47 @@ public:
PreconditionException(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const PreconditionException& rhs);
std::string what() const throw();
};
// Class: RangeException
// RangeException should be thrown if something (such as an array bound) is out
// of bounds.
//
// Operators:
// ostream&<<
//
// Parent:
// <Exception>
class RangeException : public Exception
{
public:
RangeException() throw();
RangeException(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const RangeException& rhs);
std::string what() const throw();
};
// Class: ResourceException
// ResourceException should be thrown if there is a problem accessing a
// resource.
//
// Operators:
// ostream&<<
//
// Parent:
// <Exception>
class ResourceException : public Exception
{
public:
ResourceException() throw();
ResourceException(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const ResourceException& rhs);
std::string what() const throw();
};
// Class: Error
// GeneralError is the base error class, all errors inherit from it, and it
// inherits from <Throwable>.
// Error is the base error class, all errors inherit from it, and it inherits
// from <Throwable>.
// Error should be used for hard to classify errors.
//
// Errors should be used when a problem occurs which is difficult to just
// ignore, usually more severe than exceptions.
//
// Operators:
// ostream&<<
//
// See Also:
// <Exception>
//
@ -183,56 +159,44 @@ public:
// <Throwable>
//
// Children:
// <MemoryError>
// <APIError>
// <MemoryError>
class Error : public Throwable
{
public:
Error() throw();
Error(const std::string&description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const Error& rhs);
std::string what() const throw();
};
// Class: MemoryError
// MemoryError should be thrown if there is an error allocating memory.
//
// Operators:
// ostream&<<
// MemoryError should be thrown if an error occurs while allocating memory.
//
// Parent:
// <Error>
class MemoryError : public Error
{
public:
MemoryError() throw();
MemoryError(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const MemoryError& rhs);
std::string what() const throw();
};
// Class: APIError
// APIError should be thrown if an error occurs in code which is not part of
// Photon.
//
// Operators:
// ostream&<<
//
// Parent:
// <Error>
// <Throwable>
class APIError : public Error
{
public:
APIError() throw();
APIError(const std::string& description = std::string(),
const std::string& file = std::string(),
uint line=0) throw();
friend std::ostream& operator<<(std::ostream& os,
const APIError& rhs);
std::string what() const throw();
};
}

41
src/exceptions.cpp
View File

@ -5,7 +5,7 @@
// James Turk (jpt2433@rit.edu)
//
// Version:
// $Id: exceptions.cpp,v 1.5 2005/02/16 06:58:26 cozman Exp $
// $Id: exceptions.cpp,v 1.6 2005/02/27 05:52:00 cozman Exp $
#include "exceptions.hpp"
@ -22,7 +22,7 @@ Throwable::Throwable(const std::string& description,
Throwable::~Throwable() throw()
{}
std::string Throwable::getDesc() const throw()
std::string Throwable::what() const throw()
{
std::ostringstream ss;
@ -34,46 +34,51 @@ std::string Throwable::getDesc() const throw()
return ss.str();
}
std::ostream& operator<<(std::ostream& os, const Throwable& rhs)
{
return os << rhs.what();
}
//exceptions//
Exception::Exception(const std::string& description,
const std::string& file, uint line) throw() :
Throwable(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const Exception& rhs)
std::string Exception::what() const throw()
{
return os << "General exception occured: " << rhs.getDesc();
return "General exception occured: " + Throwable::what();
}
ArgumentException::ArgumentException(const std::string& description,
const std::string& file, uint line) throw() :
Exception(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const ArgumentException& rhs)
std::string ArgumentException::what() const throw()
{
return os << "Invalid argument exception occured. " << rhs.getDesc();
return "Invalid argument exception occured: " + Throwable::what();
}
PreconditionException::PreconditionException(const std::string& description,
const std::string& file, uint line) throw() :
Exception(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const PreconditionException& rhs)
std::string PreconditionException::what() const throw()
{
return os << "Precondition exception occured: " << rhs.getDesc();
return "Precondition exception occured: " + Throwable::what();
}
RangeException::RangeException(const std::string& description,
const std::string& file, uint line) throw() :
Exception(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const RangeException& rhs)
std::string RangeException::what() const throw()
{
return os << "Out-of-range exception: " << rhs.getDesc();
return "Out-of-range exception: " + Throwable::what();
}
ResourceException::ResourceException(const std::string& description,
const std::string& file, uint line) throw() :
Exception(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const ResourceException& rhs)
std::string ResourceException::what() const throw()
{
return os << "Resource exception: " << rhs.getDesc();
return "Resource exception: " + Throwable::what();
}
//errors//
@ -81,25 +86,25 @@ std::ostream& operator<<(std::ostream& os, const ResourceException& rhs)
Error::Error(const std::string& description,
const std::string& file, uint line) throw() :
Throwable(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const Error& rhs)
std::string Error::what() const throw()
{
return os << "General error occured: " << rhs.getDesc();
return "General error occured: " + Throwable::what();
}
MemoryError::MemoryError(const std::string& description,
const std::string& file, uint line) throw() :
Error(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const MemoryError& rhs)
std::string MemoryError::what() const throw()
{
return os << "Memory error occured: " << rhs.getDesc();
return "Memory error occured: " + Throwable::what();
}
APIError::APIError(const std::string& description,
const std::string& file, uint line) throw() :
Error(description,file,line) {}
std::ostream& operator<<(std::ostream& os, const APIError& rhs)
std::string APIError::what() const throw()
{
return os << "Error occured within another library: " << rhs.getDesc();
return "Error occured within another library: " + Throwable::what();
}
}