llvm::ErrorList Class Reference

Special ErrorInfo subclass representing a list of ErrorInfos. More...

#include "llvm/Support/Error.h"

Inheritance diagram for llvm::ErrorList:

Public Member Functions
void	log (raw_ostream &OS) const override
	Print an error message to an output stream.
std::error_code	convertToErrorCode () const override
	Convert this error to a std::error_code.
Public Member Functions inherited from llvm::ErrorInfo< ErrorList >
const void *	dynamicClassID () const override
bool	isA (const void *const ClassID) const override
Public Member Functions inherited from llvm::ErrorInfoBase
virtual	~ErrorInfoBase ()=default
virtual void	log (raw_ostream &OS) const =0
	Print an error message to an output stream.
virtual std::string	message () const
	Return the error message as a string.
virtual std::error_code	convertToErrorCode () const =0
	Convert this error to a std::error_code.
virtual const void *	dynamicClassID () const =0
virtual bool	isA (const void *const ClassID) const
template<typename ErrorInfoT >
bool	isA () const

Static Public Attributes
static char	ID = 0

Friends
template<typename... HandlerTs>
Error	handleErrors (Error E, HandlerTs &&... Handlers)
	Pass the ErrorInfo(s) contained in E to their respective handlers.
template<typename HandlerT >
void	visitErrors (const Error &E, HandlerT H)
	Visit all the ErrorInfo(s) contained in E by passing them to the respective handler, without consuming the error.
Error	joinErrors (Error, Error)
	Concatenate errors.

Additional Inherited Members
Static Public Member Functions inherited from llvm::ErrorInfo< ErrorList >
static const void *	classID ()
Static Public Member Functions inherited from llvm::ErrorInfoBase
static const void *	classID ()

Detailed Description

Special ErrorInfo subclass representing a list of ErrorInfos.

Instances of this class are constructed by joinError.

Definition at line 370 of file Error.h.

Member Function Documentation

convertToErrorCode()

std::error_code llvm::ErrorList::convertToErrorCode ( ) const

overridevirtual

Convert this error to a std::error_code.

This is a temporary crutch to enable interaction with code still using std::error_code. It will be removed in the future.

Implements llvm::ErrorInfoBase.

Definition at line 93 of file Error.cpp.

log()

void llvm::ErrorList::log ( raw_ostream &  OS ) const

inlineoverridevirtual

Print an error message to an output stream.

Implements llvm::ErrorInfoBase.

Definition at line 384 of file Error.h.

References OS.

Friends And Related Function Documentation

handleErrors

template<typename... HandlerTs>

Error handleErrors ( Error  E, HandlerTs &&...  Handlers  )

friend

Pass the ErrorInfo(s) contained in E to their respective handlers.

Any unhandled errors (or Errors returned by handlers) are re-concatenated and returned. Because this function returns an error, its result must also be checked or returned. If you intend to handle all errors use handleAllErrors (which returns void, and will abort() on unhandled errors) instead.

Definition at line 954 of file Error.h.

joinErrors

Error joinErrors ( Error  E1, Error  E2  )

friend

Concatenate errors.

The resulting Error is unchecked, and contains the ErrorInfo(s), if any, contained in E1, followed by the ErrorInfo(s), if any, contained in E2.

Definition at line 438 of file Error.h.

visitErrors

template<typename HandlerT >

void visitErrors ( const Error &  E, HandlerT  H  )

friend

Visit all the ErrorInfo(s) contained in E by passing them to the respective handler, without consuming the error.

Definition at line 989 of file Error.h.

Member Data Documentation

ID

char llvm::ErrorList::ID = 0

static

Definition at line 395 of file Error.h.

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The documentation for this class was generated from the following files:

• include/llvm/Support/Error.h
• lib/Testing/Support/Error.cpp