clang::OptionalFileEntryRefDegradesToFileEntryPtr Class Reference

Wrapper around Optional<FileEntryRef> that degrades to 'const FileEntry*', facilitating incremental patches to propagate FileEntryRef. More...

#include "clang/Basic/FileEntry.h"

Inheritance diagram for clang::OptionalFileEntryRefDegradesToFileEntryPtr:

Collaboration diagram for clang::OptionalFileEntryRefDegradesToFileEntryPtr:

Public Member Functions
	OptionalFileEntryRefDegradesToFileEntryPtr ()=default
	OptionalFileEntryRefDegradesToFileEntryPtr (OptionalFileEntryRefDegradesToFileEntryPtr &&)=default
	OptionalFileEntryRefDegradesToFileEntryPtr (const OptionalFileEntryRefDegradesToFileEntryPtr &)=default
OptionalFileEntryRefDegradesToFileEntryPtr &	operator= (OptionalFileEntryRefDegradesToFileEntryPtr &&)=default
OptionalFileEntryRefDegradesToFileEntryPtr &	operator= (const OptionalFileEntryRefDegradesToFileEntryPtr &)=default
	OptionalFileEntryRefDegradesToFileEntryPtr (llvm::NoneType)
	OptionalFileEntryRefDegradesToFileEntryPtr (FileEntryRef Ref)
	OptionalFileEntryRefDegradesToFileEntryPtr (Optional< FileEntryRef > MaybeRef)
OptionalFileEntryRefDegradesToFileEntryPtr &	operator= (llvm::NoneType)
OptionalFileEntryRefDegradesToFileEntryPtr &	operator= (FileEntryRef Ref)
OptionalFileEntryRefDegradesToFileEntryPtr &	operator= (Optional< FileEntryRef > MaybeRef)
	operator const FileEntry * () const
	Degrade to 'const FileEntry *' to allow FileEntry::LastRef and FileEntry::getName have been deleted, delete this class and replace instances with Optional<FileEntryRef> More...

Detailed Description

Wrapper around Optional<FileEntryRef> that degrades to 'const FileEntry*', facilitating incremental patches to propagate FileEntryRef.

This class can be used as return value or field where it's convenient for an Optional<FileEntryRef> to degrade to a 'const FileEntry*'. The purpose is to avoid code churn due to dances like the following:

// Old code.
lvalue = rvalue;
 
// Temporary code from an incremental patch.
Optional<FileEntryRef> MaybeF = rvalue;
lvalue = MaybeF ? &MaybeF.getFileEntry() : nullptr;
 
// Final code.
lvalue = rvalue;

FIXME: Once FileEntryRef is "everywhere" and FileEntry::LastRef and FileEntry::getName have been deleted, delete this class and replace instances with Optional<FileEntryRef>.

Definition at line 280 of file FileEntry.h.

Constructor & Destructor Documentation

OptionalFileEntryRefDegradesToFileEntryPtr() [1/6]

clang::OptionalFileEntryRefDegradesToFileEntryPtr::OptionalFileEntryRefDegradesToFileEntryPtr ( )

default

OptionalFileEntryRefDegradesToFileEntryPtr() [2/6]

clang::OptionalFileEntryRefDegradesToFileEntryPtr::OptionalFileEntryRefDegradesToFileEntryPtr ( OptionalFileEntryRefDegradesToFileEntryPtr &&  )

default

OptionalFileEntryRefDegradesToFileEntryPtr() [3/6]

clang::OptionalFileEntryRefDegradesToFileEntryPtr::OptionalFileEntryRefDegradesToFileEntryPtr ( const OptionalFileEntryRefDegradesToFileEntryPtr &  )

default

OptionalFileEntryRefDegradesToFileEntryPtr() [4/6]

clang::OptionalFileEntryRefDegradesToFileEntryPtr::OptionalFileEntryRefDegradesToFileEntryPtr ( llvm::NoneType  )

inline

Definition at line 293 of file FileEntry.h.

OptionalFileEntryRefDegradesToFileEntryPtr() [5/6]

clang::OptionalFileEntryRefDegradesToFileEntryPtr::OptionalFileEntryRefDegradesToFileEntryPtr ( FileEntryRef  Ref )

inline

Definition at line 294 of file FileEntry.h.

OptionalFileEntryRefDegradesToFileEntryPtr() [6/6]

clang::OptionalFileEntryRefDegradesToFileEntryPtr::OptionalFileEntryRefDegradesToFileEntryPtr ( Optional< FileEntryRef >  MaybeRef )

inline

Definition at line 296 of file FileEntry.h.

Member Function Documentation

operator const FileEntry *()

clang::OptionalFileEntryRefDegradesToFileEntryPtr::operator const FileEntry * ( ) const

inline

Degrade to 'const FileEntry *' to allow FileEntry::LastRef and FileEntry::getName have been deleted, delete this class and replace instances with Optional<FileEntryRef>

Definition at line 316 of file FileEntry.h.

References getValue().

operator=() [1/5]

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

default

operator=() [2/5]

OptionalFileEntryRefDegradesToFileEntryPtr& clang::OptionalFileEntryRefDegradesToFileEntryPtr::operator= ( FileEntryRef  Ref )

inline

Definition at line 303 of file FileEntry.h.

operator=() [3/5]

OptionalFileEntryRefDegradesToFileEntryPtr& clang::OptionalFileEntryRefDegradesToFileEntryPtr::operator= ( llvm::NoneType  )

inline

Definition at line 299 of file FileEntry.h.

operator=() [4/5]

OptionalFileEntryRefDegradesToFileEntryPtr& clang::OptionalFileEntryRefDegradesToFileEntryPtr::operator= ( Optional< FileEntryRef >  MaybeRef )

inline

Definition at line 308 of file FileEntry.h.

operator=() [5/5]

OptionalFileEntryRefDegradesToFileEntryPtr& clang::OptionalFileEntryRefDegradesToFileEntryPtr::operator= ( OptionalFileEntryRefDegradesToFileEntryPtr &&  )

default

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

• include/clang/Basic/FileEntry.h