lean4-htt/src/runtime/exception.h
Leonardo de Moura e90585737f refactor(*): use C++11 std::current_exception and std::rethrow_exception
With these new C++11 APIs, we can delete the `clone` and `rethrow`
methods from our exception classes.
2018-06-07 16:28:54 -07:00

67 lines
1.9 KiB
C++

/*
Copyright (c) 2013 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Author: Leonardo de Moura
*/
#pragma once
#include <exception>
#include <string>
#include <memory>
namespace lean {
class sstream;
/** \brief Base class for all Lean exceptions */
class throwable : public std::exception {
protected:
std::string m_msg;
throwable() {}
public:
throwable(char const * msg);
throwable(std::string const & msg);
throwable(sstream const & strm);
virtual ~throwable() noexcept;
virtual char const * what() const noexcept;
};
/** \brief Base class for all Lean "logical" exceptions, that is, exceptions not related
to resource constraints, and runtime errors */
class exception : public throwable {
protected:
exception() {}
public:
exception(char const * msg):throwable(msg) {}
exception(std::string const & msg):throwable(msg) {}
exception(sstream const & strm):throwable(strm) {}
};
/** \brief Exception used to sign that a computation was interrupted */
class interrupted {
public:
interrupted() {}
virtual ~interrupted() noexcept {}
virtual char const * what() const noexcept { return "interrupted"; }
};
class stack_space_exception : public throwable {
std::string m_msg;
stack_space_exception(std::string const & msg):m_msg(msg) {}
public:
stack_space_exception(char const * component_name);
virtual char const * what() const noexcept { return m_msg.c_str(); }
};
class memory_exception : public throwable {
std::string m_msg;
memory_exception(std::string const & msg):m_msg(msg) {}
public:
memory_exception(char const * component_name);
virtual char const * what() const noexcept { return m_msg.c_str(); }
};
class heartbeat_exception : public throwable {
public:
heartbeat_exception() {}
virtual char const * what() const noexcept;
};
}