#include "clang/Lex/ModuleMap.h"

Classes
class	KnownHeader
	A header that is known to reside within a given module, whether it was included or excluded. More...

Public Types
enum	ModuleHeaderRole { NormalHeader = 0x0 , PrivateHeader = 0x1 , TextualHeader = 0x2 , ExcludedHeader = 0x4 }
	Flags describing the role of a module header. More...

using	AdditionalModMapsSet = llvm::SmallPtrSet< const FileEntry *, 1 >

using	module_iterator = llvm::StringMap< Module * >::const_iterator

Public Member Functions
void	resolveLinkAsDependencies (Module *Mod)
	Use PendingLinkAsModule information to mark top level link names that are going to be replaced by export_as aliases.

void	addLinkAsDependency (Module *Mod)
	Make module to use export_as as the link dependency name if enough information is available or add it to a pending list otherwise.

	ModuleMap (SourceManager &SourceMgr, DiagnosticsEngine &Diags, const LangOptions &LangOpts, const TargetInfo *Target, HeaderSearch &HeaderInfo)
	Construct a new module map.

	~ModuleMap ()
	Destroy the module map.

void	setTarget (const TargetInfo &Target)
	Set the target information.

void	setBuiltinIncludeDir (DirectoryEntryRef Dir)
	Set the directory that contains Clang-supplied include files, such as our stdarg.h or tgmath.h.

const DirectoryEntry *	getBuiltinDir () const
	Get the directory that contains Clang-supplied include files.

bool	isBuiltinHeader (const FileEntry *File)

void	addModuleMapCallbacks (std::unique_ptr< ModuleMapCallbacks > Callback)
	Add a module map callback.

KnownHeader	findModuleForHeader (FileEntryRef File, bool AllowTextual=false, bool AllowExcluded=false)
	Retrieve the module that owns the given header file, if any.

ArrayRef< KnownHeader >	findAllModulesForHeader (FileEntryRef File)
	Retrieve all the modules that contain the given header file.

ArrayRef< KnownHeader >	findResolvedModulesForHeader (const FileEntry *File) const
	Like findAllModulesForHeader, but do not attempt to infer module ownership from umbrella headers if we've not already done so.

void	resolveHeaderDirectives (const FileEntry *File) const
	Resolve all lazy header directives for the specified file.

void	resolveHeaderDirectives (Module Mod, std::optional< const FileEntry > File) const
	Resolve lazy header directives for the specified module.

void	diagnoseHeaderInclusion (Module *RequestingModule, bool RequestingModuleIsModuleInterface, SourceLocation FilenameLoc, StringRef Filename, FileEntryRef File)
	Reports errors if a module must not include a specific file.

bool	isHeaderInUnavailableModule (const FileEntry *Header) const
	Determine whether the given header is part of a module marked 'unavailable'.

bool	isHeaderUnavailableInModule (const FileEntry Header, const Module RequestingModule) const
	Determine whether the given header is unavailable as part of the specified module.

Module *	findModule (StringRef Name) const
	Retrieve a module with the given name.

Module *	lookupModuleUnqualified (StringRef Name, Module *Context) const
	Retrieve a module with the given name using lexical name lookup, starting at the given context.

Module *	lookupModuleQualified (StringRef Name, Module *Context) const
	Retrieve a module with the given name within the given context, using direct (qualified) name lookup.

std::pair< Module *, bool >	findOrCreateModule (StringRef Name, Module *Parent, bool IsFramework, bool IsExplicit)
	Find a new module or submodule, or create it if it does not already exist.

Module *	createGlobalModuleFragmentForModuleUnit (SourceLocation Loc, Module *Parent=nullptr)
	Create a global module fragment for a C++ module unit.

Module *	createImplicitGlobalModuleFragmentForModuleUnit (SourceLocation Loc, bool IsExported, Module *Parent=nullptr)

Module *	createPrivateModuleFragmentForInterfaceUnit (Module *Parent, SourceLocation Loc)
	Create a global module fragment for a C++ module interface unit.

Module *	createModuleUnitWithKind (SourceLocation Loc, StringRef Name, Module::ModuleKind Kind)
	Create a new C++ module with the specified kind, and reparent any pending global module fragment(s) to it.

Module *	createModuleForInterfaceUnit (SourceLocation Loc, StringRef Name)
	Create a new module for a C++ module interface unit.

Module *	createModuleForImplementationUnit (SourceLocation Loc, StringRef Name)
	Create a new module for a C++ module implementation unit.

Module *	createHeaderUnit (SourceLocation Loc, StringRef Name, Module::Header H)
	Create a C++20 header unit.

Module *	inferFrameworkModule (DirectoryEntryRef FrameworkDir, bool IsSystem, Module *Parent)
	Infer the contents of a framework module map from the given framework directory.

Module *	createShadowedModule (StringRef Name, bool IsFramework, Module *ShadowingModule)
	Create a new top-level module that is shadowed by `ShadowingModule`.

void	finishModuleDeclarationScope ()
	Creates a new declaration scope for module names, allowing previously defined modules to shadow definitions from the new scope.

bool	mayShadowNewModule (Module *ExistingModule)

bool	canInferFrameworkModule (const DirectoryEntry *Dir) const
	Check whether a framework module can be inferred in the given directory.

OptionalFileEntryRef	getContainingModuleMapFile (const Module *Module) const
	Retrieve the module map file containing the definition of the given module.

OptionalFileEntryRef	getModuleMapFileForUniquing (const Module *M) const
	Get the module map file that (along with the module name) uniquely identifies this module.

void	setInferredModuleAllowedBy (Module M, const FileEntry ModMap)

std::error_code	canonicalizeModuleMapPath (SmallVectorImpl< char > &Path)
	Canonicalize `Path` in a manner suitable for a module map file.

AdditionalModMapsSet *	getAdditionalModuleMapFiles (const Module *M)
	Get any module map files other than getModuleMapFileForUniquing(M) that define submodules of a top-level module `M`.

void	addAdditionalModuleMapFile (const Module M, const FileEntry ModuleMap)

bool	resolveExports (Module *Mod, bool Complain)
	Resolve all of the unresolved exports in the given module.

bool	resolveUses (Module *Mod, bool Complain)
	Resolve all of the unresolved uses in the given module.

bool	resolveConflicts (Module *Mod, bool Complain)
	Resolve all of the unresolved conflicts in the given module.

void	setUmbrellaHeaderAsWritten (Module *Mod, FileEntryRef UmbrellaHeader, const Twine &NameAsWritten, const Twine &PathRelativeToRootModuleDirectory)
	Sets the umbrella header of the given module to the given header.

void	setUmbrellaDirAsWritten (Module *Mod, DirectoryEntryRef UmbrellaDir, const Twine &NameAsWritten, const Twine &PathRelativeToRootModuleDirectory)
	Sets the umbrella directory of the given module to the given directory.

void	addHeader (Module *Mod, Module::Header Header, ModuleHeaderRole Role, bool Imported=false)
	Adds this header to the given module.

bool	parseModuleMapFile (const FileEntry File, bool IsSystem, DirectoryEntryRef HomeDir, FileID ID=FileID(), unsigned Offset=nullptr, SourceLocation ExternModuleLoc=SourceLocation())
	Parse the given module map file, and record any modules we encounter.

void	dump ()
	Dump the contents of the module map, for debugging purposes.

module_iterator	module_begin () const

module_iterator	module_end () const

llvm::iterator_range< module_iterator >	modules () const

void	cacheModuleLoad (const IdentifierInfo &II, Module *M)
	Cache a module load. M might be nullptr.

std::optional< Module * >	getCachedModuleLoad (const IdentifierInfo &II)
	Return a cached module load.

Static Public Member Functions
static ModuleHeaderRole	headerKindToRole (Module::HeaderKind Kind)
	Convert a header kind to a role. Requires Kind to not be HK_Excluded.

static Module::HeaderKind	headerRoleToKind (ModuleHeaderRole Role)
	Convert a header role to a kind.

static bool	isModular (ModuleHeaderRole Role)
	Check if the header with the given role is a modular one.

static bool	isBuiltinHeader (StringRef FileName)
	Is this a compiler builtin header?

Friends
class	ModuleMapParser

Detailed Description

Definition at line 74 of file ModuleMap.h.

Member Typedef Documentation

◆ AdditionalModMapsSet

using clang::ModuleMap::AdditionalModMapsSet = llvm::SmallPtrSet<const FileEntry *, 1>

Definition at line 197 of file ModuleMap.h.

◆ module_iterator

using clang::ModuleMap::module_iterator = llvm::StringMap<Module *>::const_iterator

Definition at line 732 of file ModuleMap.h.

Member Enumeration Documentation

◆ ModuleHeaderRole

enum clang::ModuleMap::ModuleHeaderRole

Flags describing the role of a module header.

Enumerator
NormalHeader	This header is normally included in the module.
PrivateHeader	This header is included but private.
TextualHeader	This header is part of the module (for layering purposes) but should be textually included.
ExcludedHeader	This header is explicitly excluded from the module.

Definition at line 127 of file ModuleMap.h.

Constructor & Destructor Documentation

◆ ModuleMap()

ModuleMap::ModuleMap	(	SourceManager &	SourceMgr,
		DiagnosticsEngine &	Diags,
		const LangOptions &	LangOpts,
		const TargetInfo *	Target,
		HeaderSearch &	HeaderInfo
	)

Construct a new module map.

Parameters

SourceMgr	The source manager used to find module files and headers. This source manager should be shared with the header-search mechanism, since they will refer to the same headers.
Diags	A diagnostic engine used for diagnostics.
LangOpts	Language options for this translation unit.
Target	The target for this translation unit.

Definition at line 318 of file ModuleMap.cpp.

◆ ~ModuleMap()

ModuleMap::~ModuleMap ( )

Destroy the module map.

Definition at line 326 of file ModuleMap.cpp.

Member Function Documentation

◆ addAdditionalModuleMapFile()

void ModuleMap::addAdditionalModuleMapFile	(	const Module *	M,
		const FileEntry *	ModuleMap
	)

Definition at line 1357 of file ModuleMap.cpp.

◆ addHeader()

void ModuleMap::addHeader	(	Module *	Mod,
		Module::Header	Header,
		ModuleHeaderRole	Role,
		bool	Imported = `false`
	)

Adds this header to the given module.

Parameters

Role	The role of the header wrt the module.

Definition at line 1262 of file ModuleMap.cpp.

References clang::Module::Header::Entry, clang::FileEntryRef::getName(), clang::Module::getTopLevelModule(), headerRoleToKind(), clang::Module::Headers, clang::LangOptions::isCompilingModule(), and clang::HeaderSearch::MarkFileModuleHeader().

Referenced by createHeaderUnit(), and clang::serialization::reader::HeaderFileInfoTrait::ReadData().

◆ addLinkAsDependency()

void ModuleMap::addLinkAsDependency ( Module * Mod )

Make module to use export_as as the link dependency name if enough information is available or add it to a pending list otherwise.

Definition at line 69 of file ModuleMap.cpp.

References clang::Module::ExportAsModule, findModule(), clang::Module::Name, and clang::Module::UseExportAsModuleLinkName.

◆ addModuleMapCallbacks()

void clang::ModuleMap::addModuleMapCallbacks ( std::unique_ptr< ModuleMapCallbacks > Callback )

inline

Add a module map callback.

Definition at line 422 of file ModuleMap.h.

Referenced by clang::DependencyCollector::attachToPreprocessor(), and clang::ModuleDependencyCollector::attachToPreprocessor().

◆ cacheModuleLoad()

void clang::ModuleMap::cacheModuleLoad	(	const IdentifierInfo &	II,
		Module *	M
	)

inline

Cache a module load. M might be nullptr.

Definition at line 741 of file ModuleMap.h.

Referenced by clang::CompilerInstance::loadModule().

◆ canInferFrameworkModule()

bool clang::ModuleMap::canInferFrameworkModule ( const DirectoryEntry * Dir ) const

inline

Check whether a framework module can be inferred in the given directory.

Definition at line 609 of file ModuleMap.h.

Referenced by loadModuleMapForModuleBuild().

◆ canonicalizeModuleMapPath()

std::error_code ModuleMap::canonicalizeModuleMapPath ( SmallVectorImpl< char > & Path )

Canonicalize Path in a manner suitable for a module map file.

In particular, this canonicalizes the parent directory separately from the filename so that it does not affect header resolution relative to the modulemap.

Returns: an error code if any filesystem operations failed. In this case Path is not modified.

Definition at line 1315 of file ModuleMap.cpp.

References clang::FileManager::getCanonicalName(), clang::FileManager::getDirectory(), clang::SourceManager::getFileManager(), and Parent.

◆ createGlobalModuleFragmentForModuleUnit()

Module * ModuleMap::createGlobalModuleFragmentForModuleUnit	(	SourceLocation	Loc,
		Module *	Parent = `nullptr`
	)

Create a global module fragment for a C++ module unit.

We model the global module fragment as a submodule of the module interface unit. Unfortunately, we can't create the module interface unit's Module until later, because we don't know what it will be called usually. See C++20 [module.unit]/7.2 for the case we could know its parent.

Definition at line 851 of file ModuleMap.cpp.

References clang::Module::ExplicitGlobalModuleFragment, Parent, and clang::Result.

◆ createHeaderUnit()

Module * ModuleMap::createHeaderUnit	(	SourceLocation	Loc,
		StringRef	Name,
		Module::Header	H
	)

Create a C++20 header unit.

Definition at line 946 of file ModuleMap.cpp.

References addHeader(), clang::LangOptions::CurrentModule, clang::Module::ModuleHeaderUnit, NormalHeader, and clang::Result.

◆ createImplicitGlobalModuleFragmentForModuleUnit()

Module * ModuleMap::createImplicitGlobalModuleFragmentForModuleUnit	(	SourceLocation	Loc,
		bool	IsExported,
		Module *	Parent = `nullptr`
	)

Definition at line 863 of file ModuleMap.cpp.

References clang::Module::ImplicitGlobalModuleFragment, Parent, and clang::Result.

◆ createModuleForImplementationUnit()

Module * ModuleMap::createModuleForImplementationUnit	(	SourceLocation	Loc,
		StringRef	Name
	)

Create a new module for a C++ module implementation unit.

The interface module for this implementation (implicitly imported) must exist and be loaded and present in the modules map.

Returns: The newly-created module.

Definition at line 922 of file ModuleMap.cpp.

References createModuleUnitWithKind(), clang::LangOptions::CurrentModule, clang::SourceManager::getFileEntryForID(), clang::SourceManager::getMainFileID(), clang::Module::ModuleImplementationUnit, clang::Module::ModuleInterfaceUnit, and clang::Result.

◆ createModuleForInterfaceUnit()

Module * ModuleMap::createModuleForInterfaceUnit	(	SourceLocation	Loc,
		StringRef	Name
	)

Create a new module for a C++ module interface unit.

The module must not already exist, and will be configured for the current compilation.

Note that this also sets the current module to the newly-created module.

Returns: The newly-created module.

Definition at line 904 of file ModuleMap.cpp.

References createModuleUnitWithKind(), clang::LangOptions::CurrentModule, clang::SourceManager::getFileEntryForID(), clang::SourceManager::getMainFileID(), clang::Module::ModuleInterfaceUnit, PrivateHeader, and clang::Result.

◆ createModuleUnitWithKind()

Module * ModuleMap::createModuleUnitWithKind	(	SourceLocation	Loc,
		StringRef	Name,
		Module::ModuleKind	Kind
	)

Create a new C++ module with the specified kind, and reparent any pending global module fragment(s) to it.

Definition at line 888 of file ModuleMap.cpp.

References clang::Result.

Referenced by createModuleForImplementationUnit(), and createModuleForInterfaceUnit().

◆ createPrivateModuleFragmentForInterfaceUnit()

Module * ModuleMap::createPrivateModuleFragmentForInterfaceUnit	(	Module *	Parent,
		SourceLocation	Loc
	)

Create a global module fragment for a C++ module interface unit.

Definition at line 879 of file ModuleMap.cpp.

References Parent, clang::Module::PrivateModuleFragment, and clang::Result.

◆ createShadowedModule()

Module * ModuleMap::createShadowedModule	(	StringRef	Name,
		bool	IsFramework,
		Module *	ShadowingModule
	)

Create a new top-level module that is shadowed by ShadowingModule.

Definition at line 1151 of file ModuleMap.cpp.

References clang::Result.

◆ diagnoseHeaderInclusion()

void ModuleMap::diagnoseHeaderInclusion	(	Module *	RequestingModule,
		bool	RequestingModuleIsModuleInterface,
		SourceLocation	FilenameLoc,
		StringRef	Filename,
		FileEntryRef	File
	)

Reports errors if a module must not include a specific file.

Parameters

RequestingModule	The module including a file.
RequestingModuleIsModuleInterface	`true` if the inclusion is in the interface of RequestingModule, `false` if it's in the implementation of RequestingModule. Value is ignored and meaningless if RequestingModule is nullptr.
FilenameLoc	The location of the inclusion's filename.
Filename	The included filename as written.
File	The included file.

Definition at line 470 of file ModuleMap.cpp.

References clang::Module::directlyUses(), ExcludedHeader, clang::File, Filename, clang::Module::getFullModuleName(), clang::ModuleMap::KnownHeader::getModule(), clang::ModuleMap::KnownHeader::getRole(), clang::Module::getTopLevelModule(), getTopLevelOrNull(), clang::LangOptions::isCompilingModule(), clang::Module::IsFramework, clang::Module::Name, clang::DiagnosticsEngine::Report(), resolveHeaderDirectives(), resolveUses(), and violatesPrivateInclude().

Referenced by clang::Preprocessor::LookupFile().

◆ dump()

LLVM_DUMP_METHOD void ModuleMap::dump ( )

Dump the contents of the module map, for debugging purposes.

Definition at line 1362 of file ModuleMap.cpp.

References clang::Module::print().

◆ findAllModulesForHeader()

ArrayRef< ModuleMap::KnownHeader > ModuleMap::findAllModulesForHeader ( FileEntryRef File )

Retrieve all the modules that contain the given header file.

Note that this does not implicitly load module maps, except for builtin headers, and does not consult the external source. (Those checks are the responsibility of HeaderSearch.)

Typically, findModuleForHeader should be used instead, as it picks the preferred module for the header.

Definition at line 682 of file ModuleMap.cpp.

References clang::File.

Referenced by clang::HeaderSearch::findAllModulesForHeader().

◆ findModule()

Module * ModuleMap::findModule ( StringRef Name ) const

Retrieve a module with the given name.

Parameters

Name	The name of the module to look up.

Returns: The named module, if known; otherwise, returns null.

Definition at line 806 of file ModuleMap.cpp.

Referenced by addLinkAsDependency(), clang::serialization::ModuleManager::lookupByModuleName(), clang::HeaderSearch::lookupModule(), lookupModuleQualified(), lookupModuleUnqualified(), and resolveLinkAsDependencies().

◆ findModuleForHeader()

ModuleMap::KnownHeader ModuleMap::findModuleForHeader	(	FileEntryRef	File,
		bool	AllowTextual = `false`,
		bool	AllowExcluded = `false`
	)

Retrieve the module that owns the given header file, if any.

Note that this does not implicitly load module maps, except for builtin headers, and does not consult the external source. (Those checks are the responsibility of HeaderSearch.)

Parameters

File	The header file that is likely to be included.
AllowTextual	If `true` and `File` is a textual header, return its owning module. Otherwise, no KnownHeader will be returned if the file is only known as a textual header.

Returns: The module KnownHeader, which provides the module that owns the given header file. The KnownHeader is default constructed to indicate that no module owns this header file.

Definition at line 580 of file ModuleMap.cpp.

References ExcludedHeader, clang::File, clang::ModuleMap::KnownHeader::getModule(), clang::ModuleMap::KnownHeader::getRole(), clang::Module::getTopLevelModule(), isBetterKnownHeader(), clang::Result, and TextualHeader.

Referenced by clang::HeaderSearch::findModuleForHeader(), and clang::Preprocessor::getModuleForLocation().

◆ findOrCreateModule()

std::pair< Module *, bool > ModuleMap::findOrCreateModule	(	StringRef	Name,
		Module *	Parent,
		bool	IsFramework,
		bool	IsExplicit
	)

Find a new module or submodule, or create it if it does not already exist.

Parameters

Name	The name of the module to find or create.
Parent	The module that will act as the parent of this submodule, or nullptr to indicate that this is a top-level module.
IsFramework	Whether this is a framework module.
IsExplicit	Whether this is an explicit submodule.

Returns: The found or newly-created module, along with a boolean value that will be true if the module is newly-created.

Definition at line 831 of file ModuleMap.cpp.

References clang::LangOptions::CurrentModule, lookupModuleQualified(), Parent, and clang::Result.

◆ findResolvedModulesForHeader()

ArrayRef< ModuleMap::KnownHeader > ModuleMap::findResolvedModulesForHeader ( const FileEntry * File ) const

Like findAllModulesForHeader, but do not attempt to infer module ownership from umbrella headers if we've not already done so.

Definition at line 694 of file ModuleMap.cpp.

References clang::File, and resolveHeaderDirectives().

Referenced by clang::HeaderSearch::findResolvedModulesForHeader().

◆ finishModuleDeclarationScope()

void clang::ModuleMap::finishModuleDeclarationScope ( )

inline

Creates a new declaration scope for module names, allowing previously defined modules to shadow definitions from the new scope.

Note: Module names from earlier scopes will shadow names from the new scope, which is the opposite of how shadowing works for variables.

Definition at line 600 of file ModuleMap.h.

Referenced by clang::FrontendAction::BeginSourceFile().

◆ getAdditionalModuleMapFiles()

AdditionalModMapsSet * clang::ModuleMap::getAdditionalModuleMapFiles ( const Module * M )

inline

Get any module map files other than getModuleMapFileForUniquing(M) that define submodules of a top-level module M.

This is cheaper than getting the module map file for each submodule individually, since the expected number of results is very small.

Definition at line 649 of file ModuleMap.h.

◆ getBuiltinDir()

const DirectoryEntry * clang::ModuleMap::getBuiltinDir ( ) const

inline

Get the directory that contains Clang-supplied include files.

Definition at line 413 of file ModuleMap.h.

◆ getCachedModuleLoad()

std::optional< Module * > clang::ModuleMap::getCachedModuleLoad ( const IdentifierInfo & II )

inline

Return a cached module load.

Definition at line 746 of file ModuleMap.h.

Referenced by clang::CompilerInstance::loadModule().

◆ getContainingModuleMapFile()

OptionalFileEntryRef ModuleMap::getContainingModuleMapFile ( const Module * Module ) const

Retrieve the module map file containing the definition of the given module.

Parameters

Module The module whose module map file will be returned, if known.

Returns: The file entry for the module map file containing the given module, or nullptr if the module definition was inferred.

Definition at line 1291 of file ModuleMap.cpp.

References clang::Module::DefinitionLoc, clang::SourceManager::getFileEntryRefForID(), clang::SourceManager::getFileID(), and clang::SourceLocation::isInvalid().

Referenced by compileModule(), and getModuleMapFileForUniquing().

◆ getModuleMapFileForUniquing()

OptionalFileEntryRef ModuleMap::getModuleMapFileForUniquing ( const Module * M ) const

Get the module map file that (along with the module name) uniquely identifies this module.

The particular module that Name refers to may depend on how the module was found in header search. However, the combination of Name and this module map will be globally unique for top-level modules. In the case of inferred modules, returns the module map that allowed the inference (e.g. contained 'module *'). Otherwise, returns getContainingModuleMapFile().

Definition at line 1300 of file ModuleMap.cpp.

References getContainingModuleMapFile(), and clang::Module::IsInferred.

Referenced by clang::tooling::dependencies::ModuleDepCollector::applyDiscoveredDependencies(), compileModule(), clang::HeaderSearch::getCachedModuleFileName(), and clang::HeaderSearch::getPrebuiltImplicitModuleFileName().

◆ headerKindToRole()

ModuleMap::ModuleHeaderRole ModuleMap::headerKindToRole ( Module::HeaderKind Kind )

static

Convert a header kind to a role. Requires Kind to not be HK_Excluded.

Definition at line 93 of file ModuleMap.cpp.

References ExcludedHeader, clang::Module::HK_Excluded, clang::Module::HK_Normal, clang::Module::HK_Private, clang::Module::HK_PrivateTextual, clang::Module::HK_Textual, NormalHeader, PrivateHeader, and TextualHeader.

◆ headerRoleToKind()

Module::HeaderKind ModuleMap::headerRoleToKind ( ModuleHeaderRole Role )

static

Convert a header role to a kind.

Definition at line 76 of file ModuleMap.cpp.

References ExcludedHeader, clang::Module::HK_Excluded, clang::Module::HK_Normal, clang::Module::HK_Private, clang::Module::HK_PrivateTextual, clang::Module::HK_Textual, NormalHeader, PrivateHeader, and TextualHeader.

Referenced by addHeader().

◆ inferFrameworkModule()

Module * ModuleMap::inferFrameworkModule	(	DirectoryEntryRef	FrameworkDir,
		bool	IsSystem,
		Module *	Parent
	)

Infer the contents of a framework module map from the given framework directory.

Definition at line 970 of file ModuleMap.cpp.

References clang::Module::IsSystem, and Parent.

◆ isBuiltinHeader() [1/2]

bool ModuleMap::isBuiltinHeader ( const FileEntry * File )

Definition at line 395 of file ModuleMap.cpp.

References clang::File, and isBuiltinHeader().

◆ isBuiltinHeader() [2/2]

bool ModuleMap::isBuiltinHeader ( StringRef FileName )

static

Is this a compiler builtin header?

Determine whether the given file name is the name of a builtin header, supplied by Clang to replace, override, or augment existing system headers.

Definition at line 379 of file ModuleMap.cpp.

Referenced by isBuiltinHeader(), clang::HeaderSearch::ShouldEnterIncludeFile(), and suggestModule().

◆ isHeaderInUnavailableModule()

bool ModuleMap::isHeaderInUnavailableModule ( const FileEntry * Header ) const

Determine whether the given header is part of a module marked 'unavailable'.

Definition at line 703 of file ModuleMap.cpp.

References isHeaderUnavailableInModule().

◆ isHeaderUnavailableInModule()

bool ModuleMap::isHeaderUnavailableInModule	(	const FileEntry *	Header,
		const Module *	RequestingModule
	)		const

Determine whether the given header is unavailable as part of the specified module.

Definition at line 708 of file ModuleMap.cpp.

References ExcludedHeader, clang::FileEntry::getDir(), clang::FileManager::getDirectory(), clang::Module::getEffectiveUmbrellaDir(), clang::SourceManager::getFileManager(), clang::DirectoryEntry::getName(), clang::FileEntry::getName(), clang::if(), clang::Module::InferSubmodules, clang::Module::isAvailable(), clang::Module::isSubModuleOf(), lookupModuleQualified(), clang::Module::Parent, resolveHeaderDirectives(), sanitizeFilenameAsIdentifier(), and TextualHeader.

Referenced by collectModuleHeaderIncludes(), and isHeaderInUnavailableModule().

◆ isModular()

bool ModuleMap::isModular ( ModuleHeaderRole Role )

static

Check if the header with the given role is a modular one.

Definition at line 109 of file ModuleMap.cpp.

References ExcludedHeader, and TextualHeader.

Referenced by clang::HeaderSearch::MarkFileModuleHeader(), and clang::serialization::reader::HeaderFileInfoTrait::ReadData().

◆ lookupModuleQualified()

Module * ModuleMap::lookupModuleQualified	(	StringRef	Name,
		Module *	Context
	)		const

Retrieve a module with the given name within the given context, using direct (qualified) name lookup.

Parameters

Name	The name of the module to look up.
Context	The module for which we will look for a submodule. If null, we will look for a top-level module.

Returns: The named submodule, if known; otherwose, returns null.

Definition at line 824 of file ModuleMap.cpp.

References findModule().

Referenced by findOrCreateModule(), isHeaderUnavailableInModule(), and lookupModuleUnqualified().

◆ lookupModuleUnqualified()

Module * ModuleMap::lookupModuleUnqualified	(	StringRef	Name,
		Module *	Context
	)		const

Retrieve a module with the given name using lexical name lookup, starting at the given context.

Parameters

Name	The name of the module to look up.
Context	The module context, from which we will perform lexical name lookup.

Returns: The named module, if known; otherwise, returns null.

Definition at line 814 of file ModuleMap.cpp.

References findModule(), and lookupModuleQualified().

◆ mayShadowNewModule()

bool clang::ModuleMap::mayShadowNewModule ( Module * ExistingModule )

inline

Definition at line 602 of file ModuleMap.h.

References clang::Module::Parent.

◆ module_begin()

module_iterator clang::ModuleMap::module_begin ( ) const

inline

Definition at line 734 of file ModuleMap.h.

Referenced by clang::CompilerInstance::loadGlobalModuleIndex(), and modules().

◆ module_end()

module_iterator clang::ModuleMap::module_end ( ) const

inline

Definition at line 735 of file ModuleMap.h.

Referenced by clang::CompilerInstance::loadGlobalModuleIndex(), and modules().

◆ modules()

llvm::iterator_range< module_iterator > clang::ModuleMap::modules ( ) const

inline

Definition at line 736 of file ModuleMap.h.

References module_begin(), and module_end().

Referenced by clang::HeaderSearch::collectAllModules().

◆ parseModuleMapFile()

bool ModuleMap::parseModuleMapFile	(	const FileEntry *	File,
		bool	IsSystem,
		DirectoryEntryRef	HomeDir,
		FileID	ID = `FileID()`,
		unsigned *	Offset = `nullptr`,
		SourceLocation	ExternModuleLoc = `SourceLocation()`
	)

Parse the given module map file, and record any modules we encounter.

Parameters

File	The file to be parsed.
IsSystem	Whether this module map file is in a system header directory, and therefore should be considered a system module.
HomeDir	The directory in which relative paths within this module map file will be resolved.
ID	The FileID of the file to process, if we've already entered it.
Offset	[inout] On input the offset at which to start parsing. On output, the offset at which the module map terminated.
ExternModuleLoc	The location of the "extern module" declaration that caused us to load this module map file, if any.

Returns: true if an error occurred, false otherwise.

Definition at line 3077 of file ModuleMap.cpp.

References clang::SrcMgr::C_System_ModuleMap, clang::SrcMgr::C_User_ModuleMap, clang::SourceManager::createFileID(), clang::File, clang::SourceManager::getBufferOrNone(), clang::SourceManager::getDecomposedLoc(), clang::SourceManager::getLocForStartOfFile(), clang::Lexer::getSourceLocation(), Offset, and clang::Result.

◆ resolveConflicts()

bool ModuleMap::resolveConflicts	(	Module *	Mod,
		bool	Complain
	)

Resolve all of the unresolved conflicts in the given module.

Parameters

Mod	The module whose conflicts should be resolved.
Complain	Whether to emit diagnostics for failures.

Returns: true if any errors were encountered while resolving conflicts, false otherwise.

Definition at line 1410 of file ModuleMap.cpp.

References clang::Module::Conflicts, clang::Module::Conflict::Message, clang::Module::Conflict::Other, clang::Unresolved, and clang::Module::UnresolvedConflicts.

Referenced by clang::Sema::ActOnEndOfTranslationUnit(), and clang::Preprocessor::EnterSubmodule().

◆ resolveExports()

bool ModuleMap::resolveExports	(	Module *	Mod,
		bool	Complain
	)

Resolve all of the unresolved exports in the given module.

Parameters

Mod	The module whose exports should be resolved.
Complain	Whether to emit diagnostics for failures.

Returns: true if any errors were encountered while resolving exports, false otherwise.

Definition at line 1384 of file ModuleMap.cpp.

References clang::Module::Exports, clang::Unresolved, and clang::Module::UnresolvedExports.

Referenced by clang::Sema::ActOnEndOfTranslationUnit(), and clang::Preprocessor::EnterSubmodule().

◆ resolveHeaderDirectives() [1/2]

void ModuleMap::resolveHeaderDirectives ( const FileEntry * File ) const

Resolve all lazy header directives for the specified file.

This ensures that the HeaderFileInfo on HeaderSearch is up to date. This is effectively internal, but is exposed so HeaderSearch can call it.

Definition at line 1227 of file ModuleMap.cpp.

References clang::File, and resolveHeaderDirectives().

Referenced by collectModuleHeaderIncludes(), diagnoseHeaderInclusion(), findResolvedModulesForHeader(), isHeaderUnavailableInModule(), resolveHeaderDirectives(), and clang::HeaderSearch::ShouldEnterIncludeFile().

◆ resolveHeaderDirectives() [2/2]

void ModuleMap::resolveHeaderDirectives	(	Module *	Mod,
		std::optional< const FileEntry * >	File
	)		const

Resolve lazy header directives for the specified module.

If File is provided, only headers with same size and modtime are resolved. If File is not set, all headers are resolved.

Definition at line 1243 of file ModuleMap.cpp.

References clang::File, clang::Module::UnresolvedHeaderDirective::ModTime, clang::Module::UnresolvedHeaderDirective::Size, and clang::Module::UnresolvedHeaders.

◆ resolveLinkAsDependencies()

void ModuleMap::resolveLinkAsDependencies ( Module * Mod )

Use PendingLinkAsModule information to mark top level link names that are going to be replaced by export_as aliases.

Definition at line 58 of file ModuleMap.cpp.

References findModule(), and clang::Module::Name.

Referenced by clang::CompilerInstance::loadModule().

◆ resolveUses()

bool ModuleMap::resolveUses	(	Module *	Mod,
		bool	Complain
	)

Resolve all of the unresolved uses in the given module.

Parameters

Mod	The module whose uses should be resolved.
Complain	Whether to emit diagnostics for failures.

Returns: true if any errors were encountered while resolving uses, false otherwise.

Definition at line 1397 of file ModuleMap.cpp.

References clang::Module::DirectUses, clang::Unresolved, and clang::Module::UnresolvedDirectUses.

Referenced by clang::Sema::ActOnEndOfTranslationUnit(), diagnoseHeaderInclusion(), clang::Preprocessor::EnterSubmodule(), and suggestModule().

◆ setBuiltinIncludeDir()

void clang::ModuleMap::setBuiltinIncludeDir ( DirectoryEntryRef Dir )

inline

Set the directory that contains Clang-supplied include files, such as our stdarg.h or tgmath.h.

Definition at line 408 of file ModuleMap.h.

Referenced by clang::ApplyHeaderSearchOptions().

◆ setInferredModuleAllowedBy()

void ModuleMap::setInferredModuleAllowedBy	(	Module *	M,
		const FileEntry *	ModMap
	)

Definition at line 1309 of file ModuleMap.cpp.

References clang::Module::IsInferred.

Referenced by prepareToBuildModule().

◆ setTarget()

void ModuleMap::setTarget ( const TargetInfo & Target )

Set the target information.

Definition at line 333 of file ModuleMap.cpp.

References clang::Target.

Referenced by clang::HeaderSearch::setTarget().

◆ setUmbrellaDirAsWritten()

void ModuleMap::setUmbrellaDirAsWritten	(	Module *	Mod,
		DirectoryEntryRef	UmbrellaDir,
		const Twine &	NameAsWritten,
		const Twine &	PathRelativeToRootModuleDirectory
	)

Sets the umbrella directory of the given module to the given directory.

Definition at line 1181 of file ModuleMap.cpp.

References clang::DirectoryEntryRef::getMapEntry(), clang::Module::Umbrella, clang::Module::UmbrellaAsWritten, and clang::Module::UmbrellaRelativeToRootModuleDirectory.

◆ setUmbrellaHeaderAsWritten()

void ModuleMap::setUmbrellaHeaderAsWritten	(	Module *	Mod,
		FileEntryRef	UmbrellaHeader,
		const Twine &	NameAsWritten,
		const Twine &	PathRelativeToRootModuleDirectory
	)

Sets the umbrella header of the given module to the given header.

Definition at line 1166 of file ModuleMap.cpp.

References clang::FileEntryRef::getDir(), clang::FileEntryRef::getMapEntry(), NormalHeader, clang::Module::Umbrella, clang::Module::UmbrellaAsWritten, and clang::Module::UmbrellaRelativeToRootModuleDirectory.

Friends And Related Function Documentation

◆ ModuleMapParser

friend class ModuleMapParser

friend

Definition at line 200 of file ModuleMap.h.

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

include/clang/Lex/ModuleMap.h
lib/Lex/ModuleMap.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Friends

Detailed Description

Member Typedef Documentation

◆ AdditionalModMapsSet

◆ module_iterator

Member Enumeration Documentation

◆ ModuleHeaderRole

Constructor & Destructor Documentation

◆ ModuleMap()

◆ ~ModuleMap()

Member Function Documentation

◆ addAdditionalModuleMapFile()

◆ addHeader()

◆ addLinkAsDependency()

◆ addModuleMapCallbacks()

◆ cacheModuleLoad()

◆ canInferFrameworkModule()

◆ canonicalizeModuleMapPath()

◆ createGlobalModuleFragmentForModuleUnit()

◆ createHeaderUnit()

◆ createImplicitGlobalModuleFragmentForModuleUnit()

◆ createModuleForImplementationUnit()

◆ createModuleForInterfaceUnit()

◆ createModuleUnitWithKind()

◆ createPrivateModuleFragmentForInterfaceUnit()

◆ createShadowedModule()

◆ diagnoseHeaderInclusion()

◆ dump()

◆ findAllModulesForHeader()

◆ findModule()

◆ findModuleForHeader()

◆ findOrCreateModule()

◆ findResolvedModulesForHeader()

◆ finishModuleDeclarationScope()

◆ getAdditionalModuleMapFiles()

◆ getBuiltinDir()

◆ getCachedModuleLoad()

◆ getContainingModuleMapFile()

◆ getModuleMapFileForUniquing()

◆ headerKindToRole()

◆ headerRoleToKind()

◆ inferFrameworkModule()

◆ isBuiltinHeader() [1/2]

◆ isBuiltinHeader() [2/2]

◆ isHeaderInUnavailableModule()

◆ isHeaderUnavailableInModule()

◆ isModular()

◆ lookupModuleQualified()

◆ lookupModuleUnqualified()

◆ mayShadowNewModule()

◆ module_begin()

◆ module_end()

◆ modules()

◆ parseModuleMapFile()

◆ resolveConflicts()

◆ resolveExports()

◆ resolveHeaderDirectives() [1/2]

◆ resolveHeaderDirectives() [2/2]

◆ resolveLinkAsDependencies()

◆ resolveUses()

◆ setBuiltinIncludeDir()

◆ setInferredModuleAllowedBy()

◆ setTarget()

◆ setUmbrellaDirAsWritten()

◆ setUmbrellaHeaderAsWritten()

Friends And Related Function Documentation

◆ ModuleMapParser