clang::DiagnosticBuilder Class Reference

A little helper class used to produce diagnostics. More...

#include "clang/Basic/Diagnostic.h"

Inheritance diagram for clang::DiagnosticBuilder:

Public Member Functions
	DiagnosticBuilder (const DiagnosticBuilder &D)
	Copy constructor.
template<typename T >
const DiagnosticBuilder &	operator<< (const T &V) const
template<typename T , typename = std::enable_if_t<!std::is_lvalue_reference<T>::value>>
const DiagnosticBuilder &	operator<< (T &&V) const
DiagnosticBuilder &	operator= (const DiagnosticBuilder &)=delete
	~DiagnosticBuilder ()
	Emits the diagnostic.
const DiagnosticBuilder &	setForceEmit () const
	Forces the diagnostic to be emitted.
void	addFlagValue (StringRef V) const
Public Member Functions inherited from clang::StreamingDiagnostic
DiagnosticStorage *	getStorage () const
	Retrieve storage for this particular diagnostic.
void	freeStorage ()
void	freeStorageSlow ()
void	AddTaggedVal (uint64_t V, DiagnosticsEngine::ArgumentKind Kind) const
void	AddString (StringRef V) const
void	AddSourceRange (const CharSourceRange &R) const
void	AddFixItHint (const FixItHint &Hint) const
	operator bool () const
	Conversion of StreamingDiagnostic to bool always returns true.

Protected Member Functions
void	Clear () const
	Clear out the current diagnostic.
bool	isActive () const
	Determine whether this diagnostic is still active.
bool	Emit ()
	Force the diagnostic builder to emit the diagnostic now.
Protected Member Functions inherited from clang::StreamingDiagnostic
	StreamingDiagnostic ()=default
	StreamingDiagnostic (DiagnosticStorage *Storage)
	Construct with an external storage not owned by itself.
	StreamingDiagnostic (DiagStorageAllocator &Alloc)
	Construct with a storage allocator which will manage the storage.
	StreamingDiagnostic (const StreamingDiagnostic &Diag)=default
	StreamingDiagnostic (StreamingDiagnostic &&Diag)=default
	~StreamingDiagnostic ()

Friends
class	DiagnosticsEngine
class	PartialDiagnostic

Additional Inherited Members
Protected Attributes inherited from clang::StreamingDiagnostic
DiagnosticStorage *	DiagStorage = nullptr
DiagStorageAllocator *	Allocator = nullptr
	Allocator used to allocate storage for this diagnostic.

Detailed Description

A little helper class used to produce diagnostics.

This is constructed by the DiagnosticsEngine::Report method, and allows insertion of extra information (arguments and source ranges) into the currently "in flight" diagnostic. When the temporary for the builder is destroyed, the diagnostic is issued.

Note that many of these will be created as temporary objects (many call sites), so we want them to be small and we never want their address taken. This ensures that compilers with somewhat reasonable optimizers will promote the common fields to registers, eliminating increments of the NumArgs field, for example.

Definition at line 1271 of file Diagnostic.h.

Constructor & Destructor Documentation

DiagnosticBuilder()

clang::DiagnosticBuilder::DiagnosticBuilder ( const DiagnosticBuilder &  D )

inline

Copy constructor.

When copied, this "takes" the diagnostic info from the input and neuters it.

Definition at line 1336 of file Diagnostic.h.

References D, and clang::StreamingDiagnostic::DiagStorage.

~DiagnosticBuilder()

clang::DiagnosticBuilder::~DiagnosticBuilder ( )

inline

Emits the diagnostic.

Definition at line 1366 of file Diagnostic.h.

References Emit().

Member Function Documentation

addFlagValue()

void clang::DiagnosticBuilder::addFlagValue ( StringRef  V ) const

inline

Definition at line 1374 of file Diagnostic.h.

References V.

Referenced by clang::operator<<().

Clear()

void clang::DiagnosticBuilder::Clear ( ) const

inlineprotected

Clear out the current diagnostic.

Definition at line 1303 of file Diagnostic.h.

Referenced by Emit(), clang::PartialDiagnostic::EmitToString(), and clang::SemaBase::ImmediateDiagBuilder::~ImmediateDiagBuilder().

Emit()

bool clang::DiagnosticBuilder::Emit ( )

inlineprotected

Force the diagnostic builder to emit the diagnostic now.

Once this function has been called, the DiagnosticBuilder object should not be used again before it is destroyed.

Returns

true if a diagnostic was emitted, false if the diagnostic was suppressed.

Definition at line 1319 of file Diagnostic.h.

References Clear(), clang::DiagnosticsEngine::EmitCurrentDiagnostic(), isActive(), and clang::Result.

Referenced by ~DiagnosticBuilder().

isActive()

bool clang::DiagnosticBuilder::isActive ( ) const

inlineprotected

Determine whether this diagnostic is still active.

Definition at line 1310 of file Diagnostic.h.

Referenced by Emit(), operator<<(), and clang::SemaBase::ImmediateDiagBuilder::~ImmediateDiagBuilder().

operator<<() [1/2]

template<typename T >

const DiagnosticBuilder & clang::DiagnosticBuilder::operator<< ( const T &  V ) const

inline

Definition at line 1344 of file Diagnostic.h.

References isActive(), and V.

operator<<() [2/2]

template<typename T , typename = std::enable_if_t<!std::is_lvalue_reference<T>::value>>

const DiagnosticBuilder & clang::DiagnosticBuilder::operator<< ( T &&  V ) const

inline

Definition at line 1356 of file Diagnostic.h.

References isActive(), and V.

operator=()

DiagnosticBuilder & clang::DiagnosticBuilder::operator= ( const DiagnosticBuilder &  )

delete

setForceEmit()

const DiagnosticBuilder & clang::DiagnosticBuilder::setForceEmit ( ) const

inline

Forces the diagnostic to be emitted.

Definition at line 1369 of file Diagnostic.h.

Referenced by PrintExpected(), and PrintUnexpected().

Friends And Related Function Documentation

DiagnosticsEngine

friend class DiagnosticsEngine

friend

Definition at line 1272 of file Diagnostic.h.

PartialDiagnostic

friend class PartialDiagnostic

friend

Definition at line 1273 of file Diagnostic.h.

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

• include/clang/Basic/Diagnostic.h