mwilliams
109 linhas
3.1 KiB
C++
109 linhas
3.1 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef __EXCEPTION_H__
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#define __EXCEPTION_H__
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#include "stack_trace.h"
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#include <stdarg.h>
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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#define EXCEPTION_COMMON_IMPL(cls) \
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virtual cls* clone() { \
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return new cls(*this); \
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} \
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virtual void throwException() { \
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Deleter deleter(this); \
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throw *this; \
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}
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/**
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* Base class for all exceptions.
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*/
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class Exception : public std::exception {
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public:
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Exception(const char *fmt, ...);
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Exception(const Exception &e);
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Exception();
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/**
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* Subclass can call this function to format variable length of parameters.
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*
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* class MyException : public Exception {
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* public:
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* MyException(const char *fmt, ...) {
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* va_list ap; va_start(ap, fmt); Format(fmt, ap); va_end(ap);
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* }
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* };
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*/
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void format(const char *fmt, va_list ap);
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void setMessage(const char *msg) { m_msg = msg ? msg : "";}
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virtual ~Exception() throw();
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virtual const char *what() const throw();
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struct Deleter {
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Exception* m_e;
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Deleter() : m_e(nullptr) {}
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Deleter(Exception* e) : m_e(e) {}
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~Deleter() { delete m_e; }
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};
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EXCEPTION_COMMON_IMPL(Exception);
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/**
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* Error message without stacktrace.
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*/
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const std::string &getMessage() const { return m_msg;}
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protected:
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mutable bool m_handled;
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mutable std::string m_msg;
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mutable std::string m_what;
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};
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///////////////////////////////////////////////////////////////////////////////
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class FileOpenException : public Exception {
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public:
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FileOpenException(const char *filename)
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: Exception("Unable to open file %s", filename) {
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}
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EXCEPTION_COMMON_IMPL(FileOpenException);
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};
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///////////////////////////////////////////////////////////////////////////////
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class VMSwitchModeException : public Exception {
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private:
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bool m_unwindBuiltin;
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public:
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VMSwitchModeException(bool m_unwindBuiltin)
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: m_unwindBuiltin(m_unwindBuiltin) {}
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bool unwindBuiltin() const { return m_unwindBuiltin; }
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EXCEPTION_COMMON_IMPL(VMSwitchModeException);
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};
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///////////////////////////////////////////////////////////////////////////////
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}
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#endif // __EXCEPTION_H__
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