This owns the files read by a parser, handles include stacks, and handles diagnostic wrangling. More...

#include "llvm/Support/SourceMgr.h"

Public Types
enum	DiagKind { DK_Error , DK_Warning , DK_Remark , DK_Note }

using	DiagHandlerTy = void()(const SMDiagnostic &, void Context)
	Clients that want to handle their own diagnostics in a custom way can register a function pointer+context as a diagnostic handler.

Public Member Functions
	SourceMgr ()=default

	SourceMgr (const SourceMgr &)=delete

SourceMgr &	operator= (const SourceMgr &)=delete

	SourceMgr (SourceMgr &&)=default

SourceMgr &	operator= (SourceMgr &&)=default

	~SourceMgr ()=default

ArrayRef< std::string >	getIncludeDirs () const
	Return the include directories of this source manager.

void	setIncludeDirs (const std::vector< std::string > &Dirs)

void	setDiagHandler (DiagHandlerTy DH, void *Ctx=nullptr)
	Specify a diagnostic handler to be invoked every time PrintMessage is called.

DiagHandlerTy	getDiagHandler () const

void *	getDiagContext () const

const SrcBuffer &	getBufferInfo (unsigned i) const

const MemoryBuffer *	getMemoryBuffer (unsigned i) const

unsigned	getNumBuffers () const

unsigned	getMainFileID () const

SMLoc	getParentIncludeLoc (unsigned i) const

unsigned	AddNewSourceBuffer (std::unique_ptr< MemoryBuffer > F, SMLoc IncludeLoc)
	Add a new source buffer to this source manager.

void	takeSourceBuffersFrom (SourceMgr &SrcMgr, SMLoc MainBufferIncludeLoc=SMLoc())
	Takes the source buffers from the given source manager and append them to the current manager.

unsigned	AddIncludeFile (const std::string &Filename, SMLoc IncludeLoc, std::string &IncludedFile)
	Search for a file with the specified name in the current directory or in one of the IncludeDirs.

ErrorOr< std::unique_ptr< MemoryBuffer > >	OpenIncludeFile (const std::string &Filename, std::string &IncludedFile)
	Search for a file with the specified name in the current directory or in one of the IncludeDirs, and try to open it without adding to the SourceMgr.

unsigned	FindBufferContainingLoc (SMLoc Loc) const
	Return the ID of the buffer containing the specified location.

unsigned	FindLineNumber (SMLoc Loc, unsigned BufferID=0) const
	Find the line number for the specified location in the specified file.

std::pair< unsigned, unsigned >	getLineAndColumn (SMLoc Loc, unsigned BufferID=0) const
	Find the line and column number for the specified location in the specified file.

std::string	getFormattedLocationNoOffset (SMLoc Loc, bool IncludePath=false) const
	Get a string with the `SMLoc` filename and line number formatted in the standard style.

SMLoc	FindLocForLineAndColumn (unsigned BufferID, unsigned LineNo, unsigned ColNo)
	Given a line and column number in a mapped buffer, turn it into an SMLoc.

void	PrintMessage (raw_ostream &OS, SMLoc Loc, DiagKind Kind, const Twine &Msg, ArrayRef< SMRange > Ranges={}, ArrayRef< SMFixIt > FixIts={}, bool ShowColors=true) const
	Emit a message about the specified location with the specified string.

void	PrintMessage (SMLoc Loc, DiagKind Kind, const Twine &Msg, ArrayRef< SMRange > Ranges={}, ArrayRef< SMFixIt > FixIts={}, bool ShowColors=true) const
	Emits a diagnostic to llvm::errs().

void	PrintMessage (raw_ostream &OS, const SMDiagnostic &Diagnostic, bool ShowColors=true) const
	Emits a manually-constructed diagnostic to the given output stream.

SMDiagnostic	GetMessage (SMLoc Loc, DiagKind Kind, const Twine &Msg, ArrayRef< SMRange > Ranges={}, ArrayRef< SMFixIt > FixIts={}) const
	Return an SMDiagnostic at the specified location with the specified string.

void	PrintIncludeStack (SMLoc IncludeLoc, raw_ostream &OS) const
	Prints the names of included files and the line of the file they were included from.

Detailed Description

This owns the files read by a parser, handles include stacks, and handles diagnostic wrangling.

Definition at line 31 of file SourceMgr.h.

Member Typedef Documentation

◆ DiagHandlerTy

using llvm::SourceMgr::DiagHandlerTy = void (*)(const SMDiagnostic &, void *Context)

Clients that want to handle their own diagnostics in a custom way can register a function pointer+context as a diagnostic handler.

It gets called each time PrintMessage is invoked.

Definition at line 43 of file SourceMgr.h.

Member Enumeration Documentation

◆ DiagKind

enum llvm::SourceMgr::DiagKind

Enumerator
DK_Error
DK_Warning
DK_Remark
DK_Note

Definition at line 33 of file SourceMgr.h.

Constructor & Destructor Documentation

◆ SourceMgr() [1/3]

llvm::SourceMgr::SourceMgr ( )

default

◆ SourceMgr() [2/3]

llvm::SourceMgr::SourceMgr ( const SourceMgr & )

delete

◆ SourceMgr() [3/3]

llvm::SourceMgr::SourceMgr ( SourceMgr && )

default

◆ ~SourceMgr()

llvm::SourceMgr::~SourceMgr ( )

default

Member Function Documentation

◆ AddIncludeFile()

unsigned SourceMgr::AddIncludeFile	(	const std::string &	Filename,
		SMLoc	IncludeLoc,
		std::string &	IncludedFile
	)

Search for a file with the specified name in the current directory or in one of the IncludeDirs.

If no file is found, this returns 0, otherwise it returns the buffer ID of the stacked file. The full path to the included file can be found in IncludedFile.

Definition at line 41 of file SourceMgr.cpp.

References AddNewSourceBuffer(), and OpenIncludeFile().

◆ AddNewSourceBuffer()

unsigned llvm::SourceMgr::AddNewSourceBuffer	(	std::unique_ptr< MemoryBuffer >	F,
		SMLoc	IncludeLoc
	)

inline

Add a new source buffer to this source manager.

This takes ownership of the memory buffer.

Definition at line 144 of file SourceMgr.h.

References F.

Referenced by AddIncludeFile(), llvm::FileCheckPatternContext::defineCmdlineVariables(), llvm::MIRParserImpl::initializeMachineFunction(), initializeRecordStreamer(), parseAssemblyInto(), llvm::parseConstantValue(), llvm::parseDIExpressionBodyAtBeginning(), parseSummaryIndexAssemblyInto(), llvm::parseType(), llvm::parseTypeAtBeginning(), llvm::FileCheck::readCheckFile(), and llvm::TableGenMain().

◆ FindBufferContainingLoc()

unsigned SourceMgr::FindBufferContainingLoc ( SMLoc Loc ) const

Return the ID of the buffer containing the specified location.

0 is returned if the buffer is not found.

Definition at line 73 of file SourceMgr.cpp.

References llvm::SMLoc::getPointer().

Referenced by getFormattedLocationNoOffset(), getLineAndColumn(), getLocCookie(), GetMessage(), llvm::MCGenDwarfLabelEntry::Make(), PrintIncludeStack(), and PrintMessage().

◆ FindLineNumber()

unsigned llvm::SourceMgr::FindLineNumber	(	SMLoc	Loc,
		unsigned	BufferID = `0`
	)		const

inline

Find the line number for the specified location in the specified file.

This is not a fast method.

Definition at line 196 of file SourceMgr.h.

References getLineAndColumn().

Referenced by getFormattedLocationNoOffset(), llvm::MCGenDwarfLabelEntry::Make(), and PrintIncludeStack().

◆ FindLocForLineAndColumn()

SMLoc SourceMgr::FindLocForLineAndColumn	(	unsigned	BufferID,
		unsigned	LineNo,
		unsigned	ColNo
	)

Given a line and column number in a mapped buffer, turn it into an SMLoc.

This will return a null SMLoc if the line/column location is invalid.

Definition at line 234 of file SourceMgr.cpp.

References getBufferInfo(), llvm::SMLoc::getFromPointer(), llvm::StringRef::npos, and Ptr.

◆ getBufferInfo()

const SrcBuffer & llvm::SourceMgr::getBufferInfo ( unsigned i ) const

inline

Definition at line 120 of file SourceMgr.h.

References assert().

Referenced by FindLocForLineAndColumn(), getFormattedLocationNoOffset(), getLineAndColumn(), PrintIncludeStack(), and PrintMessage().

◆ getDiagContext()

void * llvm::SourceMgr::getDiagContext ( ) const

inline

Definition at line 118 of file SourceMgr.h.

Referenced by llvm::TableGenParseFile(), and llvm::remarks::YAMLParseError::YAMLParseError().

◆ getDiagHandler()

DiagHandlerTy llvm::SourceMgr::getDiagHandler ( ) const

inline

Definition at line 117 of file SourceMgr.h.

Referenced by llvm::TableGenParseFile(), and llvm::remarks::YAMLParseError::YAMLParseError().

◆ getFormattedLocationNoOffset()

std::string SourceMgr::getFormattedLocationNoOffset	(	SMLoc	Loc,
		bool	IncludePath = `false`
	)		const

Get a string with the SMLoc filename and line number formatted in the standard style.

Get a string with the source location formatted in the standard style, but without the line offset.

If IncludePath is true, the path is included. If false, only the file name and extension are included.

Definition at line 216 of file SourceMgr.cpp.

References assert(), FindBufferContainingLoc(), FindLineNumber(), getBufferInfo(), and I.

◆ getIncludeDirs()

ArrayRef< std::string > llvm::SourceMgr::getIncludeDirs ( ) const

inline

Return the include directories of this source manager.

Definition at line 104 of file SourceMgr.h.

Referenced by llvm::TableGenParseFile().

◆ getLineAndColumn()

std::pair< unsigned, unsigned > SourceMgr::getLineAndColumn	(	SMLoc	Loc,
		unsigned	BufferID = `0`
	)		const

Find the line and column number for the specified location in the specified file.

This is not a fast method.

Definition at line 192 of file SourceMgr.cpp.

References assert(), llvm::StringRef::find_last_of(), FindBufferContainingLoc(), getBufferInfo(), llvm::SMLoc::getPointer(), llvm::StringRef::npos, and Ptr.

Referenced by llvm::FileCheckDiag::FileCheckDiag(), FindLineNumber(), and GetMessage().

◆ getMainFileID()

unsigned llvm::SourceMgr::getMainFileID ( ) const

inline

Definition at line 132 of file SourceMgr.h.

References assert(), and getNumBuffers().

Referenced by llvm::SIMachineFunctionInfo::initializeBaseYamlFields(), llvm::MCContext::MCContext(), llvm::GCNTargetMachine::parseMachineFunctionInfo(), llvm::TableGenParseFile(), and llvm::TGLexer::TGLexer().

◆ getMemoryBuffer()

const MemoryBuffer * llvm::SourceMgr::getMemoryBuffer ( unsigned i ) const

inline

Definition at line 125 of file SourceMgr.h.

References assert().

Referenced by GetMessage(), llvm::SIMachineFunctionInfo::initializeBaseYamlFields(), llvm::MCContext::MCContext(), llvm::GCNTargetMachine::parseMachineFunctionInfo(), llvm::TableGenParseFile(), and llvm::TGLexer::TGLexer().

◆ GetMessage()

SMDiagnostic SourceMgr::GetMessage	(	SMLoc	Loc,
		SourceMgr::DiagKind	Kind,
		const Twine &	Msg,
		ArrayRef< SMRange >	Ranges = `{}`,
		ArrayRef< SMFixIt >	FixIts = `{}`
	)		const

Return an SMDiagnostic at the specified location with the specified string.

Parameters

Msg	If non-null, the kind of message (e.g., "error") which is prefixed to the message.

Definition at line 274 of file SourceMgr.cpp.

References assert(), FindBufferContainingLoc(), llvm::MemoryBuffer::getBufferEnd(), llvm::MemoryBuffer::getBufferIdentifier(), llvm::MemoryBuffer::getBufferStart(), llvm::SMLoc::getFromPointer(), getLineAndColumn(), getMemoryBuffer(), llvm::SMLoc::getPointer(), llvm::SMLoc::isValid(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::Twine::str().

Referenced by llvm::LLLexer::Error(), llvm::MIRParserImpl::error(), llvm::ErrorDiagnostic::get(), llvm::parseType(), PrintMessage(), llvm::MCContext::reportError(), and llvm::MCContext::reportWarning().

◆ getNumBuffers()

unsigned llvm::SourceMgr::getNumBuffers ( ) const

inline

Definition at line 130 of file SourceMgr.h.

Referenced by getMainFileID(), llvm::MCContext::MCContext(), and takeSourceBuffersFrom().

◆ getParentIncludeLoc()

SMLoc llvm::SourceMgr::getParentIncludeLoc ( unsigned i ) const

inline

Definition at line 137 of file SourceMgr.h.

References assert().

◆ OpenIncludeFile()

ErrorOr< std::unique_ptr< MemoryBuffer > > SourceMgr::OpenIncludeFile	(	const std::string &	Filename,
		std::string &	IncludedFile
	)

Search for a file with the specified name in the current directory or in one of the IncludeDirs, and try to open it without adding to the SourceMgr.

If the opened file is intended to be added to the source manager, prefer AddIncludeFile instead.

If no file is found, this returns an Error, otherwise it returns the buffer of the stacked file. The full path to the included file can be found in IncludedFile.

Definition at line 53 of file SourceMgr.cpp.

References llvm::sys::path::append(), and llvm::MemoryBuffer::getFile().

Referenced by AddIncludeFile().

◆ operator=() [1/2]

SourceMgr & llvm::SourceMgr::operator= ( const SourceMgr & )

delete

◆ operator=() [2/2]

SourceMgr & llvm::SourceMgr::operator= ( SourceMgr && )

default

◆ PrintIncludeStack()

void SourceMgr::PrintIncludeStack	(	SMLoc	IncludeLoc,
		raw_ostream &	OS
	)		const

Prints the names of included files and the line of the file they were included from.

A diagnostic handler can use this before printing its custom formatted message.

Parameters

IncludeLoc	The location of the include.
OS	the raw_ostream to print on.

Definition at line 261 of file SourceMgr.cpp.

References assert(), FindBufferContainingLoc(), FindLineNumber(), getBufferInfo(), OS, and PrintIncludeStack().

Referenced by PrintIncludeStack(), and PrintMessage().

◆ PrintMessage() [1/3]

void SourceMgr::PrintMessage	(	raw_ostream &	OS,
		const SMDiagnostic &	Diagnostic,
		bool	ShowColors = `true`
	)		const

Emits a manually-constructed diagnostic to the given output stream.

Parameters

ShowColors Display colored messages if output is a terminal and the default error handler is used.

Definition at line 335 of file SourceMgr.cpp.

References assert(), FindBufferContainingLoc(), getBufferInfo(), llvm::SMDiagnostic::getLoc(), llvm::SMLoc::isValid(), OS, llvm::SMDiagnostic::print(), and PrintIncludeStack().

◆ PrintMessage() [2/3]

void SourceMgr::PrintMessage	(	raw_ostream &	OS,
		SMLoc	Loc,
		SourceMgr::DiagKind	Kind,
		const Twine &	Msg,
		ArrayRef< SMRange >	Ranges = `{}`,
		ArrayRef< SMFixIt >	FixIts = `{}`,
		bool	ShowColors = `true`
	)		const

Emit a message about the specified location with the specified string.

Parameters

ShowColors Display colored messages if output is a terminal and the default error handler is used.

Definition at line 352 of file SourceMgr.cpp.

References GetMessage(), OS, and PrintMessage().

Referenced by llvm::FileCheckString::CheckDag(), llvm::FileCheckString::CheckNext(), llvm::FileCheckString::CheckSame(), llvm::vfs::RedirectingFileSystem::create(), llvm::MCObjectStreamer::emitFill(), llvm::Pattern::parsePattern(), llvm::PrintError(), llvm::yaml::Scanner::printError(), llvm::Pattern::printFuzzyMatch(), printMatch(), llvm::PrintMessage(), PrintMessage(), printNoMatch(), llvm::Pattern::printSubstitutions(), llvm::Pattern::printVariableDefs(), llvm::PrintWarning(), llvm::FileCheck::readCheckFile(), llvm::HexagonShuffler::reportError(), llvm::HexagonMCChecker::reportNote(), and llvm::LLLexer::Warning().

◆ PrintMessage() [3/3]

void SourceMgr::PrintMessage	(	SMLoc	Loc,
		SourceMgr::DiagKind	Kind,
		const Twine &	Msg,
		ArrayRef< SMRange >	Ranges = `{}`,
		ArrayRef< SMFixIt >	FixIts = `{}`,
		bool	ShowColors = `true`
	)		const

Emits a diagnostic to llvm::errs().

Definition at line 359 of file SourceMgr.cpp.

References llvm::errs(), and PrintMessage().

◆ setDiagHandler()

void llvm::SourceMgr::setDiagHandler	(	DiagHandlerTy	DH,
		void *	Ctx = `nullptr`
	)

inline

Specify a diagnostic handler to be invoked every time PrintMessage is called.

Ctx is passed into the handler when it is invoked.

Definition at line 112 of file SourceMgr.h.

Referenced by llvm::vfs::RedirectingFileSystem::create(), setupSM(), llvm::TableGenParseFile(), and llvm::remarks::YAMLParseError::YAMLParseError().

◆ setIncludeDirs()

void llvm::SourceMgr::setIncludeDirs ( const std::vector< std::string > & Dirs )

inline

Definition at line 106 of file SourceMgr.h.

Referenced by llvm::TableGenMain(), and llvm::TableGenParseFile().

◆ takeSourceBuffersFrom()

void llvm::SourceMgr::takeSourceBuffersFrom	(	SourceMgr &	SrcMgr,
		SMLoc	MainBufferIncludeLoc = `SMLoc()`
	)

inline

Takes the source buffers from the given source manager and append them to the current manager.

MainBufferIncludeLoc is an optional include location to attach to the main buffer of SrcMgr after it gets moved to the current manager.

Definition at line 157 of file SourceMgr.h.

References getNumBuffers(), and llvm::SrcMgr.

Referenced by llvm::TableGenParseFile().

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

include/llvm/Support/SourceMgr.h
lib/Support/SourceMgr.cpp

Public Types

Public Member Functions

Detailed Description

Member Typedef Documentation

◆ DiagHandlerTy

Member Enumeration Documentation

◆ DiagKind

Constructor & Destructor Documentation

◆ SourceMgr() [1/3]

◆ SourceMgr() [2/3]

◆ SourceMgr() [3/3]

◆ ~SourceMgr()

Member Function Documentation

◆ AddIncludeFile()

◆ AddNewSourceBuffer()

◆ FindBufferContainingLoc()

◆ FindLineNumber()

◆ FindLocForLineAndColumn()

◆ getBufferInfo()

◆ getDiagContext()

◆ getDiagHandler()

◆ getFormattedLocationNoOffset()

◆ getIncludeDirs()

◆ getLineAndColumn()

◆ getMainFileID()

◆ getMemoryBuffer()

◆ GetMessage()

◆ getNumBuffers()

◆ getParentIncludeLoc()

◆ OpenIncludeFile()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ PrintIncludeStack()

◆ PrintMessage() [1/3]

◆ PrintMessage() [2/3]

◆ PrintMessage() [3/3]

◆ setDiagHandler()

◆ setIncludeDirs()

◆ takeSourceBuffersFrom()