llvm::WithColor Class Reference

An RAII object that temporarily switches an output stream to a specific color. More...

#include "llvm/Support/WithColor.h"

Public Types
using	AutoDetectFunctionType = bool(*)(const raw_ostream &OS)

Public Member Functions
LLVM_CTOR_NODISCARD	WithColor (raw_ostream &OS, HighlightColor S, ColorMode Mode=ColorMode::Auto)
	To be used like this: WithColor(OS, HighlightColor::String) << "text";.
LLVM_CTOR_NODISCARD	WithColor (raw_ostream &OS, raw_ostream::Colors Color=raw_ostream::SAVEDCOLOR, bool Bold=false, bool BG=false, ColorMode Mode=ColorMode::Auto)
	To be used like this: WithColor(OS, raw_ostream::BLACK) << "text";.
	~WithColor ()
raw_ostream &	get ()
	operator raw_ostream & ()
template<typename T >
WithColor &	operator<< (T &O)
template<typename T >
WithColor &	operator<< (const T &O)
bool	colorsEnabled ()
	Determine whether colors are displayed.
WithColor &	changeColor (raw_ostream::Colors Color, bool Bold=false, bool BG=false)
	Change the color of text that will be output from this point forward.
WithColor &	resetColor ()
	Reset the colors to terminal defaults.

Static Public Member Functions
static raw_ostream &	error ()
	Convenience method for printing "error: " to stderr.
static raw_ostream &	warning ()
	Convenience method for printing "warning: " to stderr.
static raw_ostream &	note ()
	Convenience method for printing "note: " to stderr.
static raw_ostream &	remark ()
	Convenience method for printing "remark: " to stderr.
static raw_ostream &	error (raw_ostream &OS, StringRef Prefix="", bool DisableColors=false)
	Convenience method for printing "error: " to the given stream.
static raw_ostream &	warning (raw_ostream &OS, StringRef Prefix="", bool DisableColors=false)
	Convenience method for printing "warning: " to the given stream.
static raw_ostream &	note (raw_ostream &OS, StringRef Prefix="", bool DisableColors=false)
	Convenience method for printing "note: " to the given stream.
static raw_ostream &	remark (raw_ostream &OS, StringRef Prefix="", bool DisableColors=false)
	Convenience method for printing "remark: " to the given stream.
static void	defaultErrorHandler (Error Err)
	Implement default handling for Error.
static void	defaultWarningHandler (Error Warning)
	Implement default handling for Warning.
static AutoDetectFunctionType	defaultAutoDetectFunction ()
	Retrieve the default color auto detection function.
static void	setAutoDetectFunction (AutoDetectFunctionType NewAutoDetectFunction)
	Change the global auto detection function.

Detailed Description

An RAII object that temporarily switches an output stream to a specific color.

Definition at line 54 of file WithColor.h.

Member Typedef Documentation

AutoDetectFunctionType

using llvm::WithColor::AutoDetectFunctionType = bool (*)(const raw_ostream &OS)

Definition at line 56 of file WithColor.h.

Constructor & Destructor Documentation

WithColor() [1/2]

WithColor::WithColor	(	raw_ostream &	OS,
		HighlightColor	S,
		ColorMode	Mode = ColorMode::Auto
	)

To be used like this: WithColor(OS, HighlightColor::String) << "text";.

Parameters

OS	The output stream
S	Symbolic name for syntax element to color
Mode	Enable, disable or compute whether to use colors.

Definition at line 44 of file WithColor.cpp.

References llvm::Address, llvm::Attribute, llvm::raw_ostream::BLACK, llvm::raw_ostream::BLUE, llvm::raw_ostream::changeColor(), colorsEnabled(), llvm::raw_ostream::CYAN, llvm::Enumerator, llvm::Error, llvm::raw_ostream::GREEN, llvm::Macro, llvm::raw_ostream::MAGENTA, llvm::Note, OS, llvm::raw_ostream::RED, llvm::Remark, llvm::String, llvm::Tag, llvm::Warning, and llvm::raw_ostream::YELLOW.

WithColor() [2/2]

LLVM_CTOR_NODISCARD llvm::WithColor::WithColor ( raw_ostream &  OS, raw_ostream::Colors  Color = raw_ostream::SAVEDCOLOR, bool  Bold = false, bool  BG = false, ColorMode  Mode = ColorMode::Auto  )

inline

To be used like this: WithColor(OS, raw_ostream::BLACK) << "text";.

Parameters

OS	The output stream
Color	ANSI color to use, the special SAVEDCOLOR can be used to change only the bold attribute, and keep colors untouched
Bold	Bold/brighter text, default false
BG	If true, change the background, default: change foreground
Mode	Enable, disable or compute whether to use colors.

Definition at line 71 of file WithColor.h.

References changeColor(), and OS.

~WithColor()

WithColor::~WithColor

(

)

Definition at line 156 of file WithColor.cpp.

References resetColor().

Member Function Documentation

changeColor()

WithColor & WithColor::changeColor	(	raw_ostream::Colors	Color,
		bool	Bold = false,
		bool	BG = false
	)

Change the color of text that will be output from this point forward.

Parameters

Color	ANSI color to use, the special SAVEDCOLOR can be used to change only the bold attribute, and keep colors untouched
Bold	Bold/brighter text, default false
BG	If true, change the background, default: change foreground

Definition at line 143 of file WithColor.cpp.

References llvm::raw_ostream::changeColor(), and colorsEnabled().

Referenced by WithColor().

colorsEnabled()

bool WithColor::colorsEnabled

(

)

Determine whether colors are displayed.

Definition at line 131 of file WithColor.cpp.

References llvm::Auto, llvm::Disable, llvm::Enable, and llvm_unreachable.

Referenced by changeColor(), resetColor(), and WithColor().

defaultAutoDetectFunction()

WithColor::AutoDetectFunctionType WithColor::defaultAutoDetectFunction ( )

static

Retrieve the default color auto detection function.

Definition at line 170 of file WithColor.cpp.

References DefaultAutoDetectFunction().

defaultErrorHandler()

void WithColor::defaultErrorHandler ( Error  Err )

static

Implement default handling for Error.

Print "error: " to stderr.

Definition at line 158 of file WithColor.cpp.

References error(), llvm::handleAllErrors(), and Info.

Referenced by ThreadUnsafeDWARFContextState::getDWOContext().

defaultWarningHandler()

void WithColor::defaultWarningHandler ( Error  Warning )

static

Implement default handling for Warning.

Print "warning: " to stderr.

Definition at line 164 of file WithColor.cpp.

References llvm::handleAllErrors(), Info, llvm::Warning, and warning().

Referenced by ThreadUnsafeDWARFContextState::getDWOContext(), and sectionOverflowErrorOrWarning().

error() [1/2]

raw_ostream & WithColor::error ( )

static

Convenience method for printing "error: " to stderr.

Definition at line 83 of file WithColor.cpp.

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

Referenced by defaultErrorHandler(), error(), llvm::SMDiagnostic::print(), llvm::PrintError(), llvm::dwarf_linker::parallel::DependencyTracker::verifyKeepChain(), llvm::verifyKeepChain(), and writeCOFF().

error() [2/2]

raw_ostream & WithColor::error ( raw_ostream &  OS, StringRef  Prefix = "", bool  DisableColors = false  )

static

Convenience method for printing "error: " to the given stream.

Definition at line 91 of file WithColor.cpp.

References llvm::Auto, llvm::Disable, llvm::Error, get(), and OS.

get()

raw_ostream & llvm::WithColor::get ( )

inline

Definition at line 79 of file WithColor.h.

Referenced by llvm::DWARFDebugMacro::dump(), llvm::DWARFFormValue::dump(), llvm::DWARFDie::dump(), error(), note(), remark(), and warning().

note() [1/2]

raw_ostream & WithColor::note ( )

static

Convenience method for printing "note: " to stderr.

Definition at line 87 of file WithColor.cpp.

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

Referenced by llvm::mca::initializeUsedResources(), note(), llvm::SMDiagnostic::print(), and llvm::PrintNote().

note() [2/2]

raw_ostream & WithColor::note ( raw_ostream &  OS, StringRef  Prefix = "", bool  DisableColors = false  )

static

Convenience method for printing "note: " to the given stream.

Definition at line 111 of file WithColor.cpp.

References llvm::Auto, llvm::Disable, get(), llvm::Note, and OS.

operator raw_ostream &()

llvm::WithColor::operator raw_ostream & ( )

inline

Definition at line 80 of file WithColor.h.

operator<<() [1/2]

template<typename T >

WithColor & llvm::WithColor::operator<< ( const T &  O )

inline

Definition at line 85 of file WithColor.h.

operator<<() [2/2]

template<typename T >

WithColor & llvm::WithColor::operator<< ( T &  O )

inline

Definition at line 81 of file WithColor.h.

remark() [1/2]

raw_ostream & WithColor::remark ( )

static

Convenience method for printing "remark: " to stderr.

Definition at line 89 of file WithColor.cpp.

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

Referenced by llvm::SMDiagnostic::print(), and remark().

remark() [2/2]

raw_ostream & WithColor::remark ( raw_ostream &  OS, StringRef  Prefix = "", bool  DisableColors = false  )

static

Convenience method for printing "remark: " to the given stream.

Definition at line 121 of file WithColor.cpp.

References llvm::Auto, llvm::Disable, get(), OS, and llvm::Remark.

resetColor()

WithColor & WithColor::resetColor

(

)

Reset the colors to terminal defaults.

Call this when you are done outputting colored text, or before program exit.

Definition at line 150 of file WithColor.cpp.

References colorsEnabled(), and llvm::raw_ostream::resetColor().

Referenced by ~WithColor().

setAutoDetectFunction()

void WithColor::setAutoDetectFunction ( AutoDetectFunctionType  NewAutoDetectFunction )

static

Change the global auto detection function.

Definition at line 174 of file WithColor.cpp.

warning() [1/2]

raw_ostream & WithColor::warning ( )

static

Convenience method for printing "warning: " to stderr.

Definition at line 85 of file WithColor.cpp.

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

Referenced by llvm::TargetPassConfig::addMachinePasses(), defaultWarningHandler(), llvm::getHeaders(), llvm::mca::initializeUsedResources(), llvm::SMDiagnostic::print(), llvm::PrintWarning(), llvm::pruneCache(), llvm::reportInvalidSizeRequest(), and warning().

warning() [2/2]

raw_ostream & WithColor::warning ( raw_ostream &  OS, StringRef  Prefix = "", bool  DisableColors = false  )

static

Convenience method for printing "warning: " to the given stream.

Definition at line 101 of file WithColor.cpp.

References llvm::Auto, llvm::Disable, get(), OS, and llvm::Warning.

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

• include/llvm/Support/WithColor.h
• lib/Support/WithColor.cpp