clang::DeductionFailureInfo Struct Reference

A structure used to record information about a failed template argument deduction, for diagnosis. More...

#include "clang/Sema/TemplateDeduction.h"

Public Member Functions
PartialDiagnosticAt *	getSFINAEDiagnostic ()
	Retrieve the diagnostic which caused this deduction failure, if any.
TemplateParameter	getTemplateParameter ()
	Retrieve the template parameter this deduction failure refers to, if any.
TemplateArgumentList *	getTemplateArgumentList ()
	Retrieve the template argument list associated with this deduction failure, if any.
const TemplateArgument *	getFirstArg ()
	Return the first template argument this deduction failure refers to, if any.
const TemplateArgument *	getSecondArg ()
	Return the second template argument this deduction failure refers to, if any.
std::optional< unsigned >	getCallArgIndex ()
	Return the index of the call argument that this deduction failure refers to, if any.
void	Destroy ()
	Free any memory associated with this deduction failure.
TemplateDeductionResult	getResult () const

Public Attributes
unsigned	Result: 8
	A Sema::TemplateDeductionResult.
unsigned	HasDiagnostic: 1
	Indicates whether a diagnostic is stored in Diagnostic.
void *	Data
	Opaque pointer containing additional data about this deduction failure.
char	Diagnostic [sizeof(PartialDiagnosticAt)]
	A diagnostic indicating why deduction failed.

Detailed Description

A structure used to record information about a failed template argument deduction, for diagnosis.

Definition at line 259 of file TemplateDeduction.h.

Member Function Documentation

Destroy()

void DeductionFailureInfo::Destroy

(

)

Free any memory associated with this deduction failure.

Definition at line 823 of file SemaOverload.cpp.

References clang::AlreadyDiagnosed, clang::ConstraintsNotSatisfied, clang::CUDATargetMismatch, Data, clang::DeducedMismatch, clang::DeducedMismatchNested, Diag(), getSFINAEDiagnostic(), HasDiagnostic, clang::Incomplete, clang::IncompletePack, clang::Inconsistent, clang::InstantiationDepth, clang::Invalid, clang::InvalidExplicitArguments, clang::MiscellaneousDeductionFailure, clang::NonDeducedMismatch, clang::NonDependentConversionFailure, Result, clang::SubstitutionFailure, clang::Success, clang::TooFewArguments, clang::TooManyArguments, and clang::Underqualified.

getCallArgIndex()

std::optional< unsigned > DeductionFailureInfo::getCallArgIndex

(

)

Return the index of the call argument that this deduction failure refers to, if any.

Definition at line 1011 of file SemaOverload.cpp.

References Data, clang::DeducedMismatch, clang::DeducedMismatchNested, and Result.

Referenced by DiagnoseBadDeduction().

getFirstArg()

const TemplateArgument * DeductionFailureInfo::getFirstArg

(

)

Return the first template argument this deduction failure refers to, if any.

Definition at line 947 of file SemaOverload.cpp.

References clang::AlreadyDiagnosed, clang::ConstraintsNotSatisfied, clang::CUDATargetMismatch, Data, clang::DeducedMismatch, clang::DeducedMismatchNested, clang::Incomplete, clang::IncompletePack, clang::Inconsistent, clang::InstantiationDepth, clang::Invalid, clang::InvalidExplicitArguments, clang::MiscellaneousDeductionFailure, clang::NonDeducedMismatch, clang::NonDependentConversionFailure, Result, clang::SubstitutionFailure, clang::Success, clang::TooFewArguments, clang::TooManyArguments, and clang::Underqualified.

Referenced by DiagnoseBadDeduction().

getResult()

TemplateDeductionResult clang::DeductionFailureInfo::getResult ( ) const

inline

Definition at line 300 of file TemplateDeduction.h.

References Result.

Referenced by CheckArityMismatch(), and DiagnoseBadDeduction().

getSecondArg()

const TemplateArgument * DeductionFailureInfo::getSecondArg

(

)

Return the second template argument this deduction failure refers to, if any.

Definition at line 979 of file SemaOverload.cpp.

References clang::AlreadyDiagnosed, clang::ConstraintsNotSatisfied, clang::CUDATargetMismatch, Data, clang::DeducedMismatch, clang::DeducedMismatchNested, clang::Incomplete, clang::IncompletePack, clang::Inconsistent, clang::InstantiationDepth, clang::Invalid, clang::InvalidExplicitArguments, clang::MiscellaneousDeductionFailure, clang::NonDeducedMismatch, clang::NonDependentConversionFailure, Result, clang::SubstitutionFailure, clang::Success, clang::TooFewArguments, clang::TooManyArguments, and clang::Underqualified.

Referenced by DiagnoseBadDeduction().

getSFINAEDiagnostic()

PartialDiagnosticAt * DeductionFailureInfo::getSFINAEDiagnostic

(

)

Retrieve the diagnostic which caused this deduction failure, if any.

Definition at line 871 of file SemaOverload.cpp.

References Diagnostic, and HasDiagnostic.

Referenced by Destroy(), and DiagnoseBadDeduction().

getTemplateArgumentList()

TemplateArgumentList * DeductionFailureInfo::getTemplateArgumentList

(

)

Retrieve the template argument list associated with this deduction failure, if any.

Definition at line 911 of file SemaOverload.cpp.

References clang::AlreadyDiagnosed, clang::ConstraintsNotSatisfied, clang::CUDATargetMismatch, Data, clang::DeducedMismatch, clang::DeducedMismatchNested, clang::Incomplete, clang::IncompletePack, clang::Inconsistent, clang::InstantiationDepth, clang::Invalid, clang::InvalidExplicitArguments, clang::MiscellaneousDeductionFailure, clang::NonDeducedMismatch, clang::NonDependentConversionFailure, Result, clang::SubstitutionFailure, clang::Success, clang::TooFewArguments, clang::TooManyArguments, and clang::Underqualified.

Referenced by DiagnoseBadDeduction().

getTemplateParameter()

TemplateParameter DeductionFailureInfo::getTemplateParameter

(

)

Retrieve the template parameter this deduction failure refers to, if any.

Definition at line 877 of file SemaOverload.cpp.

References clang::AlreadyDiagnosed, clang::ConstraintsNotSatisfied, clang::CUDATargetMismatch, Data, clang::DeducedMismatch, clang::DeducedMismatchNested, clang::Incomplete, clang::IncompletePack, clang::Inconsistent, clang::InstantiationDepth, clang::Invalid, clang::InvalidExplicitArguments, clang::MiscellaneousDeductionFailure, clang::NonDeducedMismatch, clang::NonDependentConversionFailure, Result, clang::SubstitutionFailure, clang::Success, clang::TooFewArguments, clang::TooManyArguments, and clang::Underqualified.

Referenced by DiagnoseBadDeduction().

Member Data Documentation

Data

void* clang::DeductionFailureInfo::Data

Opaque pointer containing additional data about this deduction failure.

Definition at line 268 of file TemplateDeduction.h.

Referenced by clang::Sema::AddConversionCandidate(), clang::Sema::AddMethodCandidate(), clang::Sema::AddOverloadCandidate(), clang::Sema::AddSurrogateCandidate(), Destroy(), DiagnoseBadDeduction(), DiagnoseFailedEnableIfAttr(), getCallArgIndex(), getFirstArg(), getSecondArg(), getTemplateArgumentList(), and getTemplateParameter().

Diagnostic

char clang::DeductionFailureInfo::Diagnostic[sizeof(PartialDiagnosticAt)]

A diagnostic indicating why deduction failed.

Definition at line 271 of file TemplateDeduction.h.

Referenced by getSFINAEDiagnostic().

HasDiagnostic

unsigned clang::DeductionFailureInfo::HasDiagnostic

Indicates whether a diagnostic is stored in Diagnostic.

Definition at line 264 of file TemplateDeduction.h.

Referenced by Destroy(), and getSFINAEDiagnostic().

Result

unsigned clang::DeductionFailureInfo::Result

A Sema::TemplateDeductionResult.

Definition at line 261 of file TemplateDeduction.h.

Referenced by Destroy(), getCallArgIndex(), getFirstArg(), getResult(), getSecondArg(), getTemplateArgumentList(), getTemplateParameter(), and RankDeductionFailure().

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

• include/clang/Sema/TemplateDeduction.h
• lib/Sema/SemaOverload.cpp