mirror of
https://github.com/c64scene-ar/llvm-6502.git
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09203ac3dd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116330 91177308-0d34-0410-b5e6-96231b3b80d8
668 lines
21 KiB
C++
668 lines
21 KiB
C++
//===---------------------------- system_error ----------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This was lifted from libc++ and modified for C++03.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_SYSTEM_ERROR_H
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#define LLVM_SYSTEM_SYSTEM_ERROR_H
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/*
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system_error synopsis
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namespace std
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{
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class error_category
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{
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public:
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virtual ~error_category();
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error_category(const error_category&) = delete;
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error_category& operator=(const error_category&) = delete;
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virtual const char* name() const = 0;
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virtual error_condition default_error_condition(int ev) const;
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virtual bool equivalent(int code, const error_condition& condition) const;
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virtual bool equivalent(const error_code& code, int condition) const;
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virtual std::string message(int ev) const = 0;
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bool operator==(const error_category& rhs) const;
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bool operator!=(const error_category& rhs) const;
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bool operator<(const error_category& rhs) const;
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};
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const error_category& generic_category();
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const error_category& system_category();
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template <class T> struct is_error_code_enum
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: public false_type {};
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template <class T> struct is_error_condition_enum
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: public false_type {};
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class error_code
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{
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public:
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// constructors:
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error_code();
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error_code(int val, const error_category& cat);
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template <class ErrorCodeEnum>
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error_code(ErrorCodeEnum e);
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// modifiers:
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void assign(int val, const error_category& cat);
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template <class ErrorCodeEnum>
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error_code& operator=(ErrorCodeEnum e);
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void clear();
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// observers:
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int value() const;
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const error_category& category() const;
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error_condition default_error_condition() const;
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std::string message() const;
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explicit operator bool() const;
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};
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// non-member functions:
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bool operator<(const error_code& lhs, const error_code& rhs);
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template <class charT, class traits>
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basic_ostream<charT,traits>&
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operator<<(basic_ostream<charT,traits>& os, const error_code& ec);
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class error_condition
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{
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public:
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// constructors:
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error_condition();
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error_condition(int val, const error_category& cat);
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template <class ErrorConditionEnum>
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error_condition(ErrorConditionEnum e);
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// modifiers:
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void assign(int val, const error_category& cat);
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template <class ErrorConditionEnum>
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error_condition& operator=(ErrorConditionEnum e);
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void clear();
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// observers:
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int value() const;
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const error_category& category() const;
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std::string message() const;
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explicit operator bool() const;
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};
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bool operator<(const error_condition& lhs, const error_condition& rhs);
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class system_error
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: public runtime_error
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{
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public:
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system_error(error_code ec, const std::string& what_arg);
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system_error(error_code ec, const char* what_arg);
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system_error(error_code ec);
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system_error(int ev, const error_category& ecat, const std::string& what_arg);
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system_error(int ev, const error_category& ecat, const char* what_arg);
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system_error(int ev, const error_category& ecat);
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const error_code& code() const throw();
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const char* what() const throw();
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};
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enum class errc
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{
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address_family_not_supported, // EAFNOSUPPORT
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address_in_use, // EADDRINUSE
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address_not_available, // EADDRNOTAVAIL
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already_connected, // EISCONN
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argument_list_too_long, // E2BIG
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argument_out_of_domain, // EDOM
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bad_address, // EFAULT
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bad_file_descriptor, // EBADF
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bad_message, // EBADMSG
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broken_pipe, // EPIPE
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connection_aborted, // ECONNABORTED
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connection_already_in_progress, // EALREADY
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connection_refused, // ECONNREFUSED
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connection_reset, // ECONNRESET
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cross_device_link, // EXDEV
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destination_address_required, // EDESTADDRREQ
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device_or_resource_busy, // EBUSY
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directory_not_empty, // ENOTEMPTY
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executable_format_error, // ENOEXEC
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file_exists, // EEXIST
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file_too_large, // EFBIG
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filename_too_long, // ENAMETOOLONG
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function_not_supported, // ENOSYS
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host_unreachable, // EHOSTUNREACH
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identifier_removed, // EIDRM
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illegal_byte_sequence, // EILSEQ
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inappropriate_io_control_operation, // ENOTTY
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interrupted, // EINTR
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invalid_argument, // EINVAL
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invalid_seek, // ESPIPE
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io_error, // EIO
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is_a_directory, // EISDIR
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message_size, // EMSGSIZE
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network_down, // ENETDOWN
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network_reset, // ENETRESET
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network_unreachable, // ENETUNREACH
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no_buffer_space, // ENOBUFS
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no_child_process, // ECHILD
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no_link, // ENOLINK
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no_lock_available, // ENOLCK
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no_message_available, // ENODATA
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no_message, // ENOMSG
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no_protocol_option, // ENOPROTOOPT
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no_space_on_device, // ENOSPC
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no_stream_resources, // ENOSR
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no_such_device_or_address, // ENXIO
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no_such_device, // ENODEV
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no_such_file_or_directory, // ENOENT
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no_such_process, // ESRCH
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not_a_directory, // ENOTDIR
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not_a_socket, // ENOTSOCK
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not_a_stream, // ENOSTR
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not_connected, // ENOTCONN
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not_enough_memory, // ENOMEM
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not_supported, // ENOTSUP
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operation_canceled, // ECANCELED
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operation_in_progress, // EINPROGRESS
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operation_not_permitted, // EPERM
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operation_not_supported, // EOPNOTSUPP
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operation_would_block, // EWOULDBLOCK
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owner_dead, // EOWNERDEAD
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permission_denied, // EACCES
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protocol_error, // EPROTO
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protocol_not_supported, // EPROTONOSUPPORT
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read_only_file_system, // EROFS
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resource_deadlock_would_occur, // EDEADLK
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resource_unavailable_try_again, // EAGAIN
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result_out_of_range, // ERANGE
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state_not_recoverable, // ENOTRECOVERABLE
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stream_timeout, // ETIME
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text_file_busy, // ETXTBSY
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timed_out, // ETIMEDOUT
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too_many_files_open_in_system, // ENFILE
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too_many_files_open, // EMFILE
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too_many_links, // EMLINK
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too_many_symbolic_link_levels, // ELOOP
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value_too_large, // EOVERFLOW
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wrong_protocol_type // EPROTOTYPE
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};
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template <> struct is_error_condition_enum<errc> : true_type { }
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error_code make_error_code(errc e);
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error_condition make_error_condition(errc e);
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// Comparison operators:
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bool operator==(const error_code& lhs, const error_code& rhs);
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bool operator==(const error_code& lhs, const error_condition& rhs);
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bool operator==(const error_condition& lhs, const error_code& rhs);
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bool operator==(const error_condition& lhs, const error_condition& rhs);
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bool operator!=(const error_code& lhs, const error_code& rhs);
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bool operator!=(const error_code& lhs, const error_condition& rhs);
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bool operator!=(const error_condition& lhs, const error_code& rhs);
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bool operator!=(const error_condition& lhs, const error_condition& rhs);
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template <> struct hash<std::error_code>;
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} // std
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*/
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#include "llvm/Config/config.h"
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#include "llvm/Support/type_traits.h"
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#include <cerrno>
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#include <string>
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#ifdef LLVM_ON_WIN32
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// VS 2008 needs this for some of the defines below.
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# include <WinSock2.h>
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#endif
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namespace llvm {
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template <class T, T v>
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struct integral_constant {
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typedef T value_type;
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static const value_type value = v;
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typedef integral_constant<T,v> type;
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operator value_type() { return value; }
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};
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typedef integral_constant<bool, true> true_type;
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typedef integral_constant<bool, false> false_type;
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// is_error_code_enum
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template <class Tp> struct is_error_code_enum : public false_type {};
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// is_error_condition_enum
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template <class Tp> struct is_error_condition_enum : public false_type {};
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// Some error codes are not present on all platforms, so we provide equivalents
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// for them:
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//enum class errc
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struct errc {
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enum _ {
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success = 0,
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address_family_not_supported = EAFNOSUPPORT,
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address_in_use = EADDRINUSE,
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address_not_available = EADDRNOTAVAIL,
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already_connected = EISCONN,
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argument_list_too_long = E2BIG,
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argument_out_of_domain = EDOM,
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bad_address = EFAULT,
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bad_file_descriptor = EBADF,
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bad_message = EBADMSG,
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broken_pipe = EPIPE,
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connection_aborted = ECONNABORTED,
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connection_already_in_progress = EALREADY,
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connection_refused = ECONNREFUSED,
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connection_reset = ECONNRESET,
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cross_device_link = EXDEV,
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destination_address_required = EDESTADDRREQ,
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device_or_resource_busy = EBUSY,
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directory_not_empty = ENOTEMPTY,
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executable_format_error = ENOEXEC,
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file_exists = EEXIST,
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file_too_large = EFBIG,
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filename_too_long = ENAMETOOLONG,
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function_not_supported = ENOSYS,
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host_unreachable = EHOSTUNREACH,
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identifier_removed = EIDRM,
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illegal_byte_sequence = EILSEQ,
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inappropriate_io_control_operation = ENOTTY,
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interrupted = EINTR,
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invalid_argument = EINVAL,
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invalid_seek = ESPIPE,
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io_error = EIO,
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is_a_directory = EISDIR,
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message_size = EMSGSIZE,
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network_down = ENETDOWN,
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network_reset = ENETRESET,
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network_unreachable = ENETUNREACH,
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no_buffer_space = ENOBUFS,
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no_child_process = ECHILD,
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no_link = ENOLINK,
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no_lock_available = ENOLCK,
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#ifdef ENODATA
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no_message_available = ENODATA,
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#else
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no_message_available = ENOMSG,
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#endif
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no_message = ENOMSG,
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no_protocol_option = ENOPROTOOPT,
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no_space_on_device = ENOSPC,
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#ifdef ENOSR
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no_stream_resources = ENOSR,
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#else
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no_stream_resources = ENOMEM,
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#endif
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no_such_device_or_address = ENXIO,
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no_such_device = ENODEV,
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no_such_file_or_directory = ENOENT,
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no_such_process = ESRCH,
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not_a_directory = ENOTDIR,
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not_a_socket = ENOTSOCK,
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#ifdef ENOSTR
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not_a_stream = ENOSTR,
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#else
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not_a_stream = EINVAL,
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#endif
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not_connected = ENOTCONN,
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not_enough_memory = ENOMEM,
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not_supported = ENOTSUP,
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operation_canceled = ECANCELED,
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operation_in_progress = EINPROGRESS,
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operation_not_permitted = EPERM,
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operation_not_supported = EOPNOTSUPP,
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operation_would_block = EWOULDBLOCK,
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owner_dead = EOWNERDEAD,
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permission_denied = EACCES,
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protocol_error = EPROTO,
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protocol_not_supported = EPROTONOSUPPORT,
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read_only_file_system = EROFS,
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resource_deadlock_would_occur = EDEADLK,
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resource_unavailable_try_again = EAGAIN,
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result_out_of_range = ERANGE,
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state_not_recoverable = ENOTRECOVERABLE,
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#ifdef ETIME
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stream_timeout = ETIME,
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#else
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stream_timeout = ETIMEDOUT,
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#endif
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text_file_busy = ETXTBSY,
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timed_out = ETIMEDOUT,
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too_many_files_open_in_system = ENFILE,
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too_many_files_open = EMFILE,
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too_many_links = EMLINK,
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too_many_symbolic_link_levels = ELOOP,
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value_too_large = EOVERFLOW,
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wrong_protocol_type = EPROTOTYPE
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};
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_ v_;
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errc(_ v) : v_(v) {}
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operator int() const {return v_;}
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};
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template <> struct is_error_condition_enum<errc> : true_type { };
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template <> struct is_error_condition_enum<errc::_> : true_type { };
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class error_condition;
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class error_code;
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// class error_category
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class _do_message;
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class error_category
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{
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public:
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virtual ~error_category();
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private:
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error_category();
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error_category(const error_category&);// = delete;
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error_category& operator=(const error_category&);// = delete;
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public:
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virtual const char* name() const = 0;
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virtual error_condition default_error_condition(int _ev) const;
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virtual bool equivalent(int _code, const error_condition& _condition) const;
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virtual bool equivalent(const error_code& _code, int _condition) const;
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virtual std::string message(int _ev) const = 0;
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bool operator==(const error_category& _rhs) const {return this == &_rhs;}
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bool operator!=(const error_category& _rhs) const {return !(*this == _rhs);}
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bool operator< (const error_category& _rhs) const {return this < &_rhs;}
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friend class _do_message;
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};
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class _do_message : public error_category
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{
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public:
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virtual std::string message(int ev) const;
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};
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const error_category& generic_category();
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const error_category& system_category();
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class error_condition
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{
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int _val_;
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const error_category* _cat_;
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public:
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error_condition() : _val_(0), _cat_(&generic_category()) {}
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error_condition(int _val, const error_category& _cat)
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: _val_(_val), _cat_(&_cat) {}
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template <class E>
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error_condition(E _e, typename enable_if_c<
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is_error_condition_enum<E>::value
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>::type* = 0)
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{*this = make_error_condition(_e);}
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void assign(int _val, const error_category& _cat) {
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_val_ = _val;
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_cat_ = &_cat;
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}
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template <class E>
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typename enable_if_c
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<
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is_error_condition_enum<E>::value,
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error_condition&
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>::type
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operator=(E _e)
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{*this = make_error_condition(_e); return *this;}
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void clear() {
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_val_ = 0;
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_cat_ = &generic_category();
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}
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int value() const {return _val_;}
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const error_category& category() const {return *_cat_;}
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std::string message() const;
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// explicit
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operator bool() const {return _val_ != 0;}
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};
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inline error_condition make_error_condition(errc _e) {
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return error_condition(static_cast<int>(_e), generic_category());
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}
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inline bool operator<(const error_condition& _x, const error_condition& _y) {
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return _x.category() < _y.category()
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|| _x.category() == _y.category() && _x.value() < _y.value();
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}
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// error_code
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class error_code {
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int _val_;
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const error_category* _cat_;
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public:
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error_code() : _val_(0), _cat_(&system_category()) {}
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error_code(int _val, const error_category& _cat)
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: _val_(_val), _cat_(&_cat) {}
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template <class E>
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error_code(E _e, typename enable_if_c<
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is_error_code_enum<E>::value
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>::type* = 0) {
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*this = make_error_code(_e);
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}
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void assign(int _val, const error_category& _cat) {
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_val_ = _val;
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_cat_ = &_cat;
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}
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template <class E>
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typename enable_if_c
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<
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is_error_code_enum<E>::value,
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error_code&
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>::type
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operator=(E _e)
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{*this = make_error_code(_e); return *this;}
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void clear() {
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_val_ = 0;
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_cat_ = &system_category();
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}
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int value() const {return _val_;}
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const error_category& category() const {return *_cat_;}
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error_condition default_error_condition() const
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{return _cat_->default_error_condition(_val_);}
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std::string message() const;
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// explicit
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operator bool() const {return _val_ != 0;}
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};
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inline error_code make_error_code(errc _e) {
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return error_code(static_cast<int>(_e), generic_category());
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}
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inline bool operator<(const error_code& _x, const error_code& _y) {
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return _x.category() < _y.category()
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|| _x.category() == _y.category() && _x.value() < _y.value();
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}
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inline bool operator==(const error_code& _x, const error_code& _y) {
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return _x.category() == _y.category() && _x.value() == _y.value();
|
|
}
|
|
|
|
inline bool operator==(const error_code& _x, const error_condition& _y) {
|
|
return _x.category().equivalent(_x.value(), _y)
|
|
|| _y.category().equivalent(_x, _y.value());
|
|
}
|
|
|
|
inline bool operator==(const error_condition& _x, const error_code& _y) {
|
|
return _y == _x;
|
|
}
|
|
|
|
inline bool operator==(const error_condition& _x, const error_condition& _y) {
|
|
return _x.category() == _y.category() && _x.value() == _y.value();
|
|
}
|
|
|
|
inline bool operator!=(const error_code& _x, const error_code& _y) {
|
|
return !(_x == _y);
|
|
}
|
|
|
|
inline bool operator!=(const error_code& _x, const error_condition& _y) {
|
|
return !(_x == _y);
|
|
}
|
|
|
|
inline bool operator!=(const error_condition& _x, const error_code& _y) {
|
|
return !(_x == _y);
|
|
}
|
|
|
|
inline bool operator!=(const error_condition& _x, const error_condition& _y) {
|
|
return !(_x == _y);
|
|
}
|
|
|
|
// system_error
|
|
|
|
class system_error : public std::runtime_error {
|
|
error_code _ec_;
|
|
public:
|
|
system_error(error_code _ec, const std::string& _what_arg);
|
|
system_error(error_code _ec, const char* _what_arg);
|
|
system_error(error_code _ec);
|
|
system_error(int _ev, const error_category& _ecat,
|
|
const std::string& _what_arg);
|
|
system_error(int _ev, const error_category& _ecat, const char* _what_arg);
|
|
system_error(int _ev, const error_category& _ecat);
|
|
~system_error() throw();
|
|
|
|
const error_code& code() const throw() {return _ec_;}
|
|
|
|
private:
|
|
static std::string _init(const error_code&, std::string);
|
|
};
|
|
|
|
void _throw_system_error(int ev, const char* what_arg);
|
|
|
|
} // end namespace llvm
|
|
|
|
#ifdef LLVM_ON_WIN32
|
|
#include <Windows.h>
|
|
#include <WinError.h>
|
|
|
|
namespace llvm {
|
|
|
|
// To construct an error_code after a API error:
|
|
//
|
|
// error_code( ::GetLastError(), system_category() )
|
|
struct windows_error {
|
|
enum _ {
|
|
success = 0,
|
|
// These names and values are based on Windows winerror.h
|
|
invalid_function = ERROR_INVALID_FUNCTION,
|
|
file_not_found = ERROR_FILE_NOT_FOUND,
|
|
path_not_found = ERROR_PATH_NOT_FOUND,
|
|
too_many_open_files = ERROR_TOO_MANY_OPEN_FILES,
|
|
access_denied = ERROR_ACCESS_DENIED,
|
|
invalid_handle = ERROR_INVALID_HANDLE,
|
|
arena_trashed = ERROR_ARENA_TRASHED,
|
|
not_enough_memory = ERROR_NOT_ENOUGH_MEMORY,
|
|
invalid_block = ERROR_INVALID_BLOCK,
|
|
bad_environment = ERROR_BAD_ENVIRONMENT,
|
|
bad_format = ERROR_BAD_FORMAT,
|
|
invalid_access = ERROR_INVALID_ACCESS,
|
|
outofmemory = ERROR_OUTOFMEMORY,
|
|
invalid_drive = ERROR_INVALID_DRIVE,
|
|
current_directory = ERROR_CURRENT_DIRECTORY,
|
|
not_same_device = ERROR_NOT_SAME_DEVICE,
|
|
no_more_files = ERROR_NO_MORE_FILES,
|
|
write_protect = ERROR_WRITE_PROTECT,
|
|
bad_unit = ERROR_BAD_UNIT,
|
|
not_ready = ERROR_NOT_READY,
|
|
bad_command = ERROR_BAD_COMMAND,
|
|
crc = ERROR_CRC,
|
|
bad_length = ERROR_BAD_LENGTH,
|
|
seek = ERROR_SEEK,
|
|
not_dos_disk = ERROR_NOT_DOS_DISK,
|
|
sector_not_found = ERROR_SECTOR_NOT_FOUND,
|
|
out_of_paper = ERROR_OUT_OF_PAPER,
|
|
write_fault = ERROR_WRITE_FAULT,
|
|
read_fault = ERROR_READ_FAULT,
|
|
gen_failure = ERROR_GEN_FAILURE,
|
|
sharing_violation = ERROR_SHARING_VIOLATION,
|
|
lock_violation = ERROR_LOCK_VIOLATION,
|
|
wrong_disk = ERROR_WRONG_DISK,
|
|
sharing_buffer_exceeded = ERROR_SHARING_BUFFER_EXCEEDED,
|
|
handle_eof = ERROR_HANDLE_EOF,
|
|
handle_disk_full= ERROR_HANDLE_DISK_FULL,
|
|
rem_not_list = ERROR_REM_NOT_LIST,
|
|
dup_name = ERROR_DUP_NAME,
|
|
bad_net_path = ERROR_BAD_NETPATH,
|
|
network_busy = ERROR_NETWORK_BUSY,
|
|
// ...
|
|
file_exists = ERROR_FILE_EXISTS,
|
|
cannot_make = ERROR_CANNOT_MAKE,
|
|
// ...
|
|
broken_pipe = ERROR_BROKEN_PIPE,
|
|
open_failed = ERROR_OPEN_FAILED,
|
|
buffer_overflow = ERROR_BUFFER_OVERFLOW,
|
|
disk_full= ERROR_DISK_FULL,
|
|
// ...
|
|
lock_failed = ERROR_LOCK_FAILED,
|
|
busy = ERROR_BUSY,
|
|
cancel_violation = ERROR_CANCEL_VIOLATION,
|
|
already_exists = ERROR_ALREADY_EXISTS
|
|
// ...
|
|
|
|
// TODO: add more Windows errors
|
|
};
|
|
_ v_;
|
|
|
|
windows_error(_ v) : v_(v) {}
|
|
explicit windows_error(DWORD v) : v_(_(v)) {}
|
|
operator int() const {return v_;}
|
|
};
|
|
|
|
|
|
template <> struct is_error_code_enum<windows_error> : true_type { };
|
|
|
|
template <> struct is_error_code_enum<windows_error::_> : true_type { };
|
|
|
|
inline error_code make_error_code(windows_error e) {
|
|
return error_code(static_cast<int>(e), system_category());
|
|
}
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_ON_WINDOWS
|
|
|
|
#endif
|