Error.h File Reference

#include "llvm-c/Error.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Config/abi-breaking.h"
#include "llvm/Support/AlignOf.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
#include <cstdlib>
#include <functional>
#include <memory>
#include <new>
#include <optional>
#include <string>
#include <system_error>
#include <type_traits>
#include <utility>
#include <vector>

Go to the source code of this file.

Classes
class	llvm::ErrorInfoBase
	Base class for error info classes. More...
class	llvm::Error
	Lightweight error class with error context and mandatory checking. More...
class	llvm::ErrorSuccess
	Subclass of Error for the sole purpose of identifying the success path in the type system. More...
class	llvm::ErrorInfo< ThisErrT, ParentErrT >
	Base class for user error types. More...
class	llvm::ErrorList
	Special ErrorInfo subclass representing a list of ErrorInfos. More...
class	llvm::Expected< T >
	Tagged union holding either a T or a Error. More...
class	llvm::ErrorHandlerTraits< HandlerT >
	Helper for testing applicability of, and applying, handlers for ErrorInfo types. More...
class	llvm::ErrorHandlerTraits< Error(&)(ErrT &)>
class	llvm::ErrorHandlerTraits< void(&)(ErrT &)>
class	llvm::ErrorHandlerTraits< Error(&)(std::unique_ptr< ErrT >)>
	Specialization for functions of the form 'Error (std::unique_ptr<ErrT>)'. More...
class	llvm::ErrorHandlerTraits< void(&)(std::unique_ptr< ErrT >)>
	Specialization for functions of the form 'void (std::unique_ptr<ErrT>)'. More...
class	llvm::ErrorHandlerTraits< RetT(C::*)(ErrT &)>
class	llvm::ErrorHandlerTraits< RetT(C::*)(ErrT &) const >
class	llvm::ErrorHandlerTraits< RetT(C::*)(const ErrT &)>
class	llvm::ErrorHandlerTraits< RetT(C::*)(const ErrT &) const >
class	llvm::ErrorHandlerTraits< RetT(C::*)(std::unique_ptr< ErrT >)>
	Specialization for member functions of the form 'RetT (std::unique_ptr<ErrT>)'. More...
class	llvm::ErrorHandlerTraits< RetT(C::*)(std::unique_ptr< ErrT >) const >
	Specialization for member functions of the form 'RetT (std::unique_ptr<ErrT>) const'. More...
class	llvm::ErrorAsOutParameter
	Helper for Errors used as out-parameters. More...
class	llvm::ExpectedAsOutParameter< T >
	Helper for Expected<T>s used as out-parameters. More...
class	llvm::ECError
	This class wraps a std::error_code in a Error. More...
class	llvm::StringError
	This class wraps a string in an Error. More...
class	llvm::FileError
	This class wraps a filename and another Error. More...
class	llvm::ExitOnError
	Helper for check-and-exit error handling. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
template<typename ErrT , typename... ArgTs>
Error	llvm::make_error (ArgTs &&... Args)
	Make a Error instance representing failure using the given error info type.
Error	llvm::joinErrors (Error E1, Error E2)
	Concatenate errors.
void	llvm::report_fatal_error (Error Err, bool gen_crash_diag=true)
	Report a serious error, calling any installed error handler.
void	llvm::cantFail (Error Err, const char *Msg=nullptr)
	Report a fatal error if Err is a failure value.
template<typename T >
T	llvm::cantFail (Expected< T > ValOrErr, const char *Msg=nullptr)
	Report a fatal error if ValOrErr is a failure value, otherwise unwraps and returns the contained value.
template<typename T >
T &	llvm::cantFail (Expected< T & > ValOrErr, const char *Msg=nullptr)
	Report a fatal error if ValOrErr is a failure value, otherwise unwraps and returns the contained reference.
Error	llvm::handleErrorImpl (std::unique_ptr< ErrorInfoBase > Payload)
template<typename HandlerT , typename... HandlerTs>
Error	llvm::handleErrorImpl (std::unique_ptr< ErrorInfoBase > Payload, HandlerT &&Handler, HandlerTs &&... Handlers)
template<typename... HandlerTs>
Error	llvm::handleErrors (Error E, HandlerTs &&... Hs)
	Pass the ErrorInfo(s) contained in E to their respective handlers.
template<typename... HandlerTs>
void	llvm::handleAllErrors (Error E, HandlerTs &&... Handlers)
	Behaves the same as handleErrors, except that by contract all errors must be handled by the given handlers (i.e.
void	llvm::handleAllErrors (Error E)
	Check that E is a non-error, then drop it.
template<typename T , typename RecoveryFtor , typename... HandlerTs>
Expected< T >	llvm::handleExpected (Expected< T > ValOrErr, RecoveryFtor &&RecoveryPath, HandlerTs &&... Handlers)
	Handle any errors (if present) in an Expected<T>, then try a recovery path.
void	llvm::logAllUnhandledErrors (Error E, raw_ostream &OS, Twine ErrorBanner={})
	Log all errors (if any) in E to OS.
std::string	llvm::toString (Error E)
	Write all error messages (if any) in E to a string.
void	llvm::consumeError (Error Err)
	Consume a Error without doing anything.
template<typename T >
std::optional< T >	llvm::expectedToOptional (Expected< T > &&E)
	Convert an Expected to an Optional without doing anything.
template<typename T >
std::optional< T >	llvm::expectedToStdOptional (Expected< T > &&E)
bool	llvm::errorToBool (Error Err)
	Helper for converting an Error to a bool.
std::error_code	llvm::inconvertibleErrorCode ()
	The value returned by this function can be returned from convertToErrorCode for Error values where no sensible translation to std::error_code exists.
Error	llvm::errorCodeToError (std::error_code EC)
	Helper for converting an std::error_code to a Error.
std::error_code	llvm::errorToErrorCode (Error Err)
	Helper for converting an ECError to a std::error_code.
std::error_code	llvm::errnoAsErrorCode ()
	Helper to get errno as an std::error_code.
template<typename T >
Expected< T >	llvm::errorOrToExpected (ErrorOr< T > &&EO)
	Convert an ErrorOr<T> to an Expected<T>.
template<typename T >
ErrorOr< T >	llvm::expectedToErrorOr (Expected< T > &&E)
	Convert an Expected<T> to an ErrorOr<T>.
template<typename... Ts>
Error	llvm::createStringError (std::error_code EC, char const *Fmt, const Ts &... Vals)
	Create formatted StringError object.
Error	llvm::createStringError (std::error_code EC, char const *Msg)
Error	llvm::createStringError (std::error_code EC, const Twine &S)
template<typename... Ts>
Error	llvm::createStringError (std::errc EC, char const *Fmt, const Ts &... Vals)
Error	llvm::createFileError (const Twine &F, Error E)
	Concatenate a source file path and/or name with an Error.
Error	llvm::createFileError (const Twine &F, size_t Line, Error E)
	Concatenate a source file path and/or name with line number and an Error.
Error	llvm::createFileError (const Twine &F, std::error_code EC)
	Concatenate a source file path and/or name with a std::error_code to form an Error object.
Error	llvm::createFileError (const Twine &F, size_t Line, std::error_code EC)
	Concatenate a source file path and/or name with line number and std::error_code to form an Error object.
Error	llvm::createFileError (const Twine &F, ErrorSuccess)=delete
LLVMErrorRef	llvm::wrap (Error Err)
	Conversion from Error to LLVMErrorRef for C error bindings.
Error	llvm::unwrap (LLVMErrorRef ErrRef)
	Conversion from LLVMErrorRef to Error for C error bindings.