clang API Documentation

Public Member Functions | Static Public Member Functions | Protected Member Functions | Friends
clang::DiagnosticBuilder Class Reference

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

#include <Diagnostic.h>

Inheritance diagram for clang::DiagnosticBuilder:
Inheritance graph
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List of all members.

Public Member Functions

 DiagnosticBuilder (const DiagnosticBuilder &D)
 ~DiagnosticBuilder ()
 Emits the diagnostic.
const DiagnosticBuildersetForceEmit () const
 Forces the diagnostic to be emitted.
 operator bool () const
 Conversion of DiagnosticBuilder to bool always returns true.
void AddString (StringRef S) const
void AddTaggedVal (intptr_t V, DiagnosticsEngine::ArgumentKind Kind) const
void AddSourceRange (const CharSourceRange &R) const
void AddFixItHint (const FixItHint &Hint) const
void addFlagValue (StringRef V) const

Static Public Member Functions

static DiagnosticBuilder getEmpty ()
 Retrieve an empty diagnostic builder.

Protected Member Functions

void FlushCounts ()
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.

Friends

class DiagnosticsEngine
class PartialDiagnostic

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 864 of file Diagnostic.h.


Constructor & Destructor Documentation

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 937 of file Diagnostic.h.

References Clear().

Emits the diagnostic.

Definition at line 951 of file Diagnostic.h.

References Emit().


Member Function Documentation

void clang::DiagnosticBuilder::AddFixItHint ( const FixItHint Hint) const [inline]
void clang::DiagnosticBuilder::addFlagValue ( StringRef  V) const [inline]

Definition at line 996 of file Diagnostic.h.

Referenced by clang::operator<<().

void clang::DiagnosticBuilder::AddSourceRange ( const CharSourceRange R) const [inline]

Definition at line 986 of file Diagnostic.h.

References isActive().

Referenced by clang::PartialDiagnostic::Emit(), and clang::operator<<().

void clang::DiagnosticBuilder::AddString ( StringRef  S) const [inline]
void clang::DiagnosticBuilder::AddTaggedVal ( intptr_t  V,
DiagnosticsEngine::ArgumentKind  Kind 
) const [inline]

Definition at line 978 of file Diagnostic.h.

References isActive().

Referenced by clang::PartialDiagnostic::Emit(), and clang::operator<<().

void clang::DiagnosticBuilder::Clear ( ) const [inline, protected]

Clear out the current diagnostic.

Definition at line 900 of file Diagnostic.h.

Referenced by DiagnosticBuilder(), Emit(), and clang::Sema::SemaDiagnosticBuilder::~SemaDiagnosticBuilder().

bool clang::DiagnosticBuilder::Emit ( ) [inline, protected]

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 916 of file Diagnostic.h.

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

Referenced by ~DiagnosticBuilder().

void clang::DiagnosticBuilder::FlushCounts ( ) [inline, protected]

Retrieve an empty diagnostic builder.

Definition at line 946 of file Diagnostic.h.

bool clang::DiagnosticBuilder::isActive ( ) const [inline, protected]

Determine whether this diagnostic is still active.

Definition at line 907 of file Diagnostic.h.

Referenced by AddFixItHint(), AddSourceRange(), AddString(), AddTaggedVal(), Emit(), and clang::Sema::SemaDiagnosticBuilder::~SemaDiagnosticBuilder().

clang::DiagnosticBuilder::operator bool ( ) const [inline]

Conversion of DiagnosticBuilder to bool always returns true.

This allows is to be used in boolean error contexts (where true is used to indicate that an error has occurred), like:

 return Diag(...);

Definition at line 968 of file Diagnostic.h.

Forces the diagnostic to be emitted.

Definition at line 956 of file Diagnostic.h.

Referenced by PrintExpected(), and PrintUnexpected().


Friends And Related Function Documentation

friend class DiagnosticsEngine [friend]

Definition at line 880 of file Diagnostic.h.

friend class PartialDiagnostic [friend]

Definition at line 892 of file Diagnostic.h.


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