A frontend action which simply wraps some other runtime-specified frontend action. More...

#include "clang/Frontend/FrontendAction.h"

Inheritance diagram for clang::WrapperFrontendAction:

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Public Member Functions
	WrapperFrontendAction (std::unique_ptr< FrontendAction > WrappedAction)
	Construct a WrapperFrontendAction from an existing action, taking ownership of it.

bool	usesPreprocessorOnly () const override
	Does this action only use the preprocessor?

TranslationUnitKind	getTranslationUnitKind () override
	For AST-based actions, the kind of translation unit we're handling.

bool	hasPCHSupport () const override
	Does this action support use with PCH?

bool	hasASTFileSupport () const override
	Does this action support use with AST files?

bool	hasIRSupport () const override
	Does this action support use with IR files?

bool	hasCodeCompletionSupport () const override
	Does this action support use with code completion?

Public Member Functions inherited from clang::FrontendAction
	FrontendAction ()

virtual	~FrontendAction ()

CompilerInstance &	getCompilerInstance () const

void	setCompilerInstance (CompilerInstance *Value)

bool	isCurrentFileAST () const

const FrontendInputFile &	getCurrentInput () const

StringRef	getCurrentFile () const

StringRef	getCurrentFileOrBufferName () const

InputKind	getCurrentFileKind () const

ASTUnit &	getCurrentASTUnit () const

Module *	getCurrentModule () const

std::unique_ptr< ASTUnit >	takeCurrentASTUnit ()

void	setCurrentInput (const FrontendInputFile &CurrentInput, std::unique_ptr< ASTUnit > AST=nullptr)

virtual bool	isModelParsingAction () const
	Is this action invoked on a model file?

bool	PrepareToExecute (CompilerInstance &CI)
	Prepare the action to execute on the given compiler instance.

bool	BeginSourceFile (CompilerInstance &CI, const FrontendInputFile &Input)
	Prepare the action for processing the input file `Input`.

llvm::Error	Execute ()
	Set the source manager's main input file, and run the action.

Protected Member Functions
bool	PrepareToExecuteAction (CompilerInstance &CI) override
	Prepare to execute the action on the given CompilerInstance.

std::unique_ptr< ASTConsumer >	CreateASTConsumer (CompilerInstance &CI, StringRef InFile) override
	Create the AST consumer object for this action, if supported.

bool	BeginInvocation (CompilerInstance &CI) override
	Callback before starting processing a single input, giving the opportunity to modify the CompilerInvocation or do some other action before BeginSourceFileAction is called.

bool	BeginSourceFileAction (CompilerInstance &CI) override
	Callback at the start of processing a single input.

void	ExecuteAction () override
	Callback to run the program action, using the initialized compiler instance.

void	EndSourceFile () override
	Perform any per-file post processing, deallocate per-file objects, and run statistics and output file cleanup code.

void	EndSourceFileAction () override
	Callback at the end of processing a single input.

bool	shouldEraseOutputFiles () override
	Callback at the end of processing a single input, to determine if the output files should be erased or not.

Implementation Action Interface

Protected Attributes
std::unique_ptr< FrontendAction >	WrappedAction

Detailed Description

A frontend action which simply wraps some other runtime-specified frontend action.

Deriving from this class allows an action to inject custom logic around some existing action's behavior. It implements every virtual method in the FrontendAction interface by forwarding to the wrapped action.

Definition at line 305 of file FrontendAction.h.

Constructor & Destructor Documentation

◆ WrapperFrontendAction()

WrapperFrontendAction::WrapperFrontendAction ( std::unique_ptr< FrontendAction > WrappedAction )

Construct a WrapperFrontendAction from an existing action, taking ownership of it.

Definition at line 1253 of file FrontendAction.cpp.

Member Function Documentation

◆ BeginInvocation()

bool WrapperFrontendAction::BeginInvocation ( CompilerInstance & CI )

overrideprotectedvirtual

Callback before starting processing a single input, giving the opportunity to modify the CompilerInvocation or do some other action before BeginSourceFileAction is called.

Returns: True on success; on failure BeginSourceFileAction(), ExecuteAction() and EndSourceFileAction() will not be called.

Reimplemented from clang::FrontendAction.

Reimplemented in clang::FixItRecompile.

Definition at line 1212 of file FrontendAction.cpp.

References WrappedAction.

◆ BeginSourceFileAction()

bool WrapperFrontendAction::BeginSourceFileAction ( CompilerInstance & CI )

overrideprotectedvirtual

Callback at the start of processing a single input.

Returns: True on success; on failure ExecutionAction() and EndSourceFileAction() will not be called.

Reimplemented from clang::FrontendAction.

Definition at line 1215 of file FrontendAction.cpp.

References clang::FrontendAction::getCurrentInput(), clang::FrontendAction::setCurrentInput(), and WrappedAction.

◆ CreateASTConsumer()

std::unique_ptr< ASTConsumer > WrapperFrontendAction::CreateASTConsumer	(	CompilerInstance &	CI,
		StringRef	InFile
	)

overrideprotectedvirtual

Create the AST consumer object for this action, if supported.

This routine is called as part of BeginSourceFile(), which will fail if the AST consumer cannot be created. This will not be called if the action has indicated that it only uses the preprocessor.

Parameters

CI	- The current compiler instance, provided as a convenience, see getCompilerInstance().
InFile	- The current input file, provided as a convenience, see getCurrentFile().

Returns: The new AST consumer, or null on failure.

Implements clang::FrontendAction.

Definition at line 1208 of file FrontendAction.cpp.

References WrappedAction.

Referenced by clang::arcmt::ObjCMigrateAction::CreateASTConsumer(), and clang::WrappingExtractAPIAction::CreateASTConsumer().

◆ EndSourceFile()

void WrapperFrontendAction::EndSourceFile ( )

overrideprotectedvirtual

Perform any per-file post processing, deallocate per-file objects, and run statistics and output file cleanup code.

Reimplemented from clang::FrontendAction.

Reimplemented in clang::IncrementalAction.

Definition at line 1226 of file FrontendAction.cpp.

References WrappedAction.

Referenced by clang::IncrementalAction::EndSourceFile().

◆ EndSourceFileAction()

void WrapperFrontendAction::EndSourceFileAction ( )

overrideprotectedvirtual

Callback at the end of processing a single input.

This is guaranteed to only be called following a successful call to BeginSourceFileAction (and BeginSourceFile).

Reimplemented from clang::FrontendAction.

Definition at line 1227 of file FrontendAction.cpp.

References WrappedAction.

◆ ExecuteAction()

void WrapperFrontendAction::ExecuteAction ( )

overrideprotectedvirtual

Callback to run the program action, using the initialized compiler instance.

This is guaranteed to only be called between BeginSourceFileAction() and EndSourceFileAction().

Implements clang::FrontendAction.

Reimplemented in clang::IncrementalAction.

Definition at line 1223 of file FrontendAction.cpp.

References WrappedAction.

◆ getTranslationUnitKind()

TranslationUnitKind WrapperFrontendAction::getTranslationUnitKind ( )

overridevirtual

For AST-based actions, the kind of translation unit we're handling.

Reimplemented from clang::FrontendAction.

Reimplemented in clang::IncrementalAction.

Definition at line 1237 of file FrontendAction.cpp.

References WrappedAction.

◆ hasASTFileSupport()

bool WrapperFrontendAction::hasASTFileSupport ( ) const

overridevirtual

Does this action support use with AST files?

Reimplemented from clang::FrontendAction.

Definition at line 1243 of file FrontendAction.cpp.

References WrappedAction.

◆ hasCodeCompletionSupport()

bool WrapperFrontendAction::hasCodeCompletionSupport ( ) const

overridevirtual

Does this action support use with code completion?

Reimplemented from clang::FrontendAction.

Definition at line 1249 of file FrontendAction.cpp.

References WrappedAction.

◆ hasIRSupport()

bool WrapperFrontendAction::hasIRSupport ( ) const

overridevirtual

Does this action support use with IR files?

Reimplemented from clang::FrontendAction.

Definition at line 1246 of file FrontendAction.cpp.

References WrappedAction.

◆ hasPCHSupport()

bool WrapperFrontendAction::hasPCHSupport ( ) const

overridevirtual

Does this action support use with PCH?

Reimplemented from clang::FrontendAction.

Definition at line 1240 of file FrontendAction.cpp.

References WrappedAction.

◆ PrepareToExecuteAction()

bool WrapperFrontendAction::PrepareToExecuteAction ( CompilerInstance & CI )

overrideprotectedvirtual

Prepare to execute the action on the given CompilerInstance.

This is called before executing the action on any inputs, and can modify the configuration as needed (including adjusting the input list).

Reimplemented from clang::FrontendAction.

Definition at line 1204 of file FrontendAction.cpp.

References WrappedAction.

◆ shouldEraseOutputFiles()

bool WrapperFrontendAction::shouldEraseOutputFiles ( )

overrideprotectedvirtual

Callback at the end of processing a single input, to determine if the output files should be erased or not.

By default it returns true if a compiler error occurred. This is guaranteed to only be called following a successful call to BeginSourceFileAction (and BeginSourceFile).

Reimplemented from clang::FrontendAction.

Definition at line 1230 of file FrontendAction.cpp.

References WrappedAction.

◆ usesPreprocessorOnly()

bool WrapperFrontendAction::usesPreprocessorOnly ( ) const

overridevirtual

Does this action only use the preprocessor?

If so no AST context will be created and this action will be invalid with AST file inputs.

Implements clang::FrontendAction.

Definition at line 1234 of file FrontendAction.cpp.

References WrappedAction.

Member Data Documentation

◆ WrappedAction

std::unique_ptr<FrontendAction> clang::WrapperFrontendAction::WrappedAction

protected

Definition at line 307 of file FrontendAction.h.

Referenced by BeginInvocation(), BeginSourceFileAction(), CreateASTConsumer(), EndSourceFile(), EndSourceFileAction(), ExecuteAction(), getTranslationUnitKind(), clang::IncrementalAction::getWrapped(), hasASTFileSupport(), hasCodeCompletionSupport(), hasIRSupport(), hasPCHSupport(), PrepareToExecuteAction(), shouldEraseOutputFiles(), and usesPreprocessorOnly().

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

include/clang/Frontend/FrontendAction.h
lib/Frontend/FrontendAction.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ WrapperFrontendAction()

Member Function Documentation

◆ BeginInvocation()

◆ BeginSourceFileAction()

◆ CreateASTConsumer()

◆ EndSourceFile()

◆ EndSourceFileAction()

◆ ExecuteAction()

◆ getTranslationUnitKind()

◆ hasASTFileSupport()

◆ hasCodeCompletionSupport()

◆ hasIRSupport()

◆ hasPCHSupport()

◆ PrepareToExecuteAction()

◆ shouldEraseOutputFiles()

◆ usesPreprocessorOnly()

Member Data Documentation

◆ WrappedAction