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clang: include/clang/Basic/Module.h Source File

15#ifndef LLVM_CLANG_BASIC_MODULE_H 16#define LLVM_CLANG_BASIC_MODULE_H 21#include "llvm/ADT/ArrayRef.h" 22#include "llvm/ADT/DenseSet.h" 23#include "llvm/ADT/PointerIntPair.h" 24#include "llvm/ADT/STLExtras.h" 25#include "llvm/ADT/SetVector.h" 26#include "llvm/ADT/SmallVector.h" 27#include "llvm/ADT/StringMap.h" 28#include "llvm/ADT/StringRef.h" 29#include "llvm/ADT/iterator_range.h" 59 using BaseT

= std::array<uint8_t, 20>;

61 static constexpr size_t size

= std::tuple_size<BaseT>::value;

65 explicit operator bool

()

const

{

return

*

this

!=

BaseT

({{0}}); }

70 static_assert

(

sizeof

(*this) >=

sizeof

(uint64_t),

"No need to truncate."

);

71 for

(

unsigned

I = 0; I <

sizeof

(uint64_t); ++I)

72 Value

|=

static_cast<

uint64_t

>

((*

this

)[I]) << (I * 8);

92 template

<

typename

InputIt>

95 "Wrong amount of bytes to create an ASTFileSignature"

);

98

std::copy(

First

,

Last

, Signature.begin());

176

std::variant<std::monostate, FileEntryRef, DirectoryEntryRef>

Umbrella

;

226

std::vector<Module *> SubModules;

230 mutable

llvm::StringMap<unsigned> SubModuleIndex;

240

std::vector<std::string> TopHeaderNames;

243 mutable

llvm::DenseSet<const Module*> VisibleModulesCache;

246 unsigned

VisibilityID;

268 unsigned

HeaderKindBeginIndex[NumHeaderKinds + 1] = {};

274

assert(HK < NumHeaderKinds &&

"Invalid Module::HeaderKind"

);

275 auto

BeginIt = HeadersStorage.begin() + HeaderKindBeginIndex[HK];

276 auto

EndIt = HeadersStorage.begin() + HeaderKindBeginIndex[HK + 1];

277 return

{BeginIt, EndIt};

280

assert(HK < NumHeaderKinds &&

"Invalid Module::HeaderKind"

);

281 auto

EndIt = HeadersStorage.begin() + HeaderKindBeginIndex[HK + 1];

282

HeadersStorage.insert(EndIt, std::move(H));

283 for

(

unsigned

HKI = HK + 1; HKI != NumHeaderKinds + 1; ++HKI)

284

++HeaderKindBeginIndex[HKI];

331

LLVM_PREFERRED_TYPE(

bool

)

335

LLVM_PREFERRED_TYPE(

bool

)

342

LLVM_PREFERRED_TYPE(

bool

)

346

LLVM_PREFERRED_TYPE(

bool

)

350

LLVM_PREFERRED_TYPE(

bool

)

354

LLVM_PREFERRED_TYPE(

bool

)

359

LLVM_PREFERRED_TYPE(

bool

)

365

LLVM_PREFERRED_TYPE(

bool

)

369

LLVM_PREFERRED_TYPE(

bool

)

376

LLVM_PREFERRED_TYPE(

bool

)

381

LLVM_PREFERRED_TYPE(

bool

)

386

LLVM_PREFERRED_TYPE(

bool

)

394

LLVM_PREFERRED_TYPE(

bool

)

399

LLVM_PREFERRED_TYPE(

bool

)

404

LLVM_PREFERRED_TYPE(

bool

)

409

LLVM_PREFERRED_TYPE(

bool

)

529 unsigned

VisibilityID);

579

UnresolvedHeaderDirective &MissingHeader,

597 for

(

const Module

*Mod =

this

; Mod; Mod = Mod->

Parent

)

598 if

(Mod->IsFramework)

615 Parent

->SubModules.push_back(

this

);

669 auto

pos =

Name

.find(

':'

);

670 return

StringRef(

Name

.data(), pos);

694 return const_cast<Module

*

>

(

720 if

(

const auto

*Dir = std::get_if<DirectoryEntryRef>(&

Umbrella

))

728 if

(

const auto

*Hdr = std::get_if<FileEntryRef>(&

Umbrella

))

744

TopHeaderNames.push_back(std::string(

Filename

));

799 if

(VisibleModulesCache.empty())

800

buildVisibleModulesCache();

801 return

VisibleModulesCache.count(M);

810 return

llvm::make_range(SubModules.begin(), SubModules.end());

812

llvm::iterator_range<submodule_const_iterator>

submodules

()

const

{

813 return

llvm::make_range(SubModules.begin(), SubModules.end());

823 return "<module-includes>"

;

827 void print

(raw_ostream &OS,

unsigned

Indent = 0,

bool

Dump =

false

)

const

;

833 void

buildVisibleModulesCache()

const

;

841

: ImportLocs(

std

::move(O.ImportLocs)), Generation(O.Generation ? 1 : 0) {

842

O.ImportLocs.clear();

849

ImportLocs = std::move(O.ImportLocs);

850

O.ImportLocs.clear();

891

std::vector<SourceLocation> ImportLocs;

894 unsigned

Generation = 0;

Defines interfaces for clang::DirectoryEntry and clang::DirectoryEntryRef.

Defines interfaces for clang::FileEntry and clang::FileEntryRef.

llvm::MachO::Target Target

Defines the clang::SourceLocation class and associated facilities.

A reference to a DirectoryEntry that includes the name of the directory as it was accessed by the Fil...

A reference to a FileEntry that includes the name of the file as it was accessed by the FileManager's...

Implements support for file system lookup, file system caching, and directory search management.

Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...

Required to construct a Module.

Describes a module or submodule.

StringRef getTopLevelModuleName() const

Retrieve the name of the top-level module.

void addRequirement(StringRef Feature, bool RequiredState, const LangOptions &LangOpts, const TargetInfo &Target)

Add the given feature requirement to the list of features required by this module.

unsigned IsExplicit

Whether this is an explicit submodule.

SmallVector< ExportDecl, 2 > Exports

The set of export declarations.

bool isForBuilding(const LangOptions &LangOpts) const

Determine whether this module can be built in this compilation.

std::variant< std::monostate, FileEntryRef, DirectoryEntryRef > Umbrella

The umbrella header or directory.

unsigned InferSubmodules

Whether we should infer submodules for this module based on the headers.

ArrayRef< Header > getAllHeaders() const

Module * findSubmodule(StringRef Name) const

Find the submodule with the given name.

bool directlyUses(const Module *Requested)

Determine whether this module has declared its intention to directly use another module.

bool isNamedModuleInterfaceHasInit() const

std::vector< std::string > ConfigMacros

The set of "configuration macros", which are macros that (intentionally) change how this module is bu...

SourceLocation InferredSubmoduleLoc

The location of the inferred submodule.

unsigned IsUnimportable

Whether this module has declared itself unimportable, either because it's missing a requirement from ...

bool isInterfaceOrPartition() const

NameVisibilityKind NameVisibility

The visibility of names within this particular module.

bool isModulePartitionImplementation() const

Is this a module partition implementation unit.

NameVisibilityKind

Describes the visibility of the various names within a particular module.

@ Hidden

All of the names in this module are hidden.

@ AllVisible

All of the names in this module are visible.

void print(raw_ostream &OS, unsigned Indent=0, bool Dump=false) const

Print the module map for this module to the given stream.

bool isNamedModuleUnit() const

Is this a C++20 named module unit.

SourceLocation DefinitionLoc

The location of the module definition.

SmallVector< UnresolvedHeaderDirective, 1 > MissingHeaders

Headers that are mentioned in the module map file but could not be found on the file system.

Module * Parent

The parent of this module.

void markUnavailable(bool Unimportable)

Mark this module and all of its submodules as unavailable.

SmallVector< UnresolvedHeaderDirective, 1 > UnresolvedHeaders

Headers that are mentioned in the module map file but that we have not yet attempted to resolve to a ...

ModuleKind Kind

The kind of this module.

bool isPrivateModule() const

void addTopHeaderFilename(StringRef Filename)

Add a top-level header filename associated with this module.

bool isUnimportable() const

Determine whether this module has been declared unimportable.

bool fullModuleNameIs(ArrayRef< StringRef > nameParts) const

Whether the full name of this module is equal to joining nameParts with "."s.

Module * getPrivateModuleFragment() const

Get the Private Module Fragment (sub-module) for this module, it there is one.

void setASTFile(OptionalFileEntryRef File)

Set the serialized AST file for the top-level module of this module.

unsigned IsInferred

Whether this is an inferred submodule (module * { ... }).

llvm::SmallSetVector< Module *, 2 > Imports

The set of modules imported by this module, and on which this module depends.

bool isModuleVisible(const Module *M) const

Determine whether the specified module would be visible to a lookup at the end of this module.

unsigned IsSystem

Whether this is a "system" module (which assumes that all headers in it are system headers).

bool isModuleInterfaceUnit() const

static StringRef getModuleInputBufferName()

std::string Name

The name of this module.

Module * getGlobalModuleFragment() const

Get the Global Module Fragment (sub-module) for this module, it there is one.

bool isSubFramework() const

Determine whether this module is a subframework of another framework.

llvm::iterator_range< submodule_iterator > submodules()

unsigned IsExternC

Whether this is an 'extern "C"' module (which implicitly puts all headers in it within an 'extern "C"...

bool isModuleMapModule() const

unsigned ModuleMapIsPrivate

Whether this module came from a "private" module map, found next to a regular (public) module map.

llvm::SmallVector< LinkLibrary, 2 > LinkLibraries

The set of libraries or frameworks to link against when an entity from this module is used.

SmallVector< UnresolvedExportDecl, 2 > UnresolvedExports

The set of export declarations that have yet to be resolved.

void addHeader(HeaderKind HK, Header H)

void setParent(Module *M)

Set the parent of this module.

std::optional< Header > getUmbrellaHeaderAsWritten() const

Retrieve the umbrella header as written.

unsigned getVisibilityID() const

SmallVector< Requirement, 2 > Requirements

The set of language features required to use this module.

bool isHeaderLikeModule() const

Is this module have similar semantics as headers.

bool isModuleImplementation() const

Is this a module implementation.

llvm::SmallSetVector< const Module *, 2 > UndeclaredUses

When NoUndeclaredIncludes is true, the set of modules this module tried to import but didn't because ...

std::string UmbrellaRelativeToRootModuleDirectory

OptionalDirectoryEntryRef Directory

The build directory of this module.

std::vector< Module * >::iterator submodule_iterator

llvm::iterator_range< submodule_const_iterator > submodules() const

SmallVector< ModuleId, 2 > UnresolvedDirectUses

The set of use declarations that have yet to be resolved.

unsigned NamedModuleHasInit

Whether this C++20 named modules doesn't need an initializer.

unsigned NoUndeclaredIncludes

Whether files in this module can only include non-modular headers and headers from used modules.

StringRef getPrimaryModuleInterfaceName() const

Get the primary module interface name from a partition.

bool isModulePartition() const

Is this a module partition.

llvm::SmallSetVector< Module *, 2 > AffectingClangModules

The set of top-level modules that affected the compilation of this module, but were not imported.

SmallVector< Module *, 2 > DirectUses

The directly used modules.

unsigned ConfigMacrosExhaustive

Whether the set of configuration macros is exhaustive.

std::string PresumedModuleMapFile

The presumed file name for the module map defining this module.

std::string APINotesFile

For the debug info, the path to this module's .apinotes file, if any.

ASTFileSignature Signature

The module signature.

bool isExplicitGlobalModule() const

ArrayRef< Header > getHeaders(HeaderKind HK) const

bool isGlobalModule() const

Does this Module scope describe a fragment of the global module within some C++ module.

unsigned InferExportWildcard

Whether, when inferring submodules, the inferr submodules should export all modules they import (e....

bool isSubModule() const

Determine whether this module is a submodule.

void getExportedModules(SmallVectorImpl< Module * > &Exported) const

Appends this module's list of exported modules to Exported.

std::vector< UnresolvedConflict > UnresolvedConflicts

The list of conflicts for which the module-id has not yet been resolved.

unsigned IsFromModuleFile

Whether this module was loaded from a module file.

bool isSubModuleOf(const Module *Other) const

Check if this module is a (possibly transitive) submodule of Other.

bool isPartOfFramework() const

Determine whether this module is a part of a framework, either because it is a framework module or be...

ArrayRef< FileEntryRef > getTopHeaders(FileManager &FileMgr)

The top-level headers associated with this module.

bool isAvailable() const

Determine whether this module is available for use within the current translation unit.

llvm::PointerIntPair< Module *, 1, bool > ExportDecl

Describes an exported module.

std::optional< DirectoryName > getUmbrellaDirAsWritten() const

Retrieve the umbrella directory as written.

unsigned HasIncompatibleModuleFile

Whether we tried and failed to load a module file for this module.

bool isImplicitGlobalModule() const

bool isHeaderUnit() const

Is this module a header unit.

@ ModuleImplementationUnit

This is a C++20 module implementation unit.

@ ModuleMapModule

This is a module that was defined by a module map and built out of header files.

@ ImplicitGlobalModuleFragment

This is an implicit fragment of the global module which contains only language linkage declarations (...

@ ModulePartitionInterface

This is a C++20 module partition interface.

@ ModuleInterfaceUnit

This is a C++20 module interface unit.

@ ModuleHeaderUnit

This is a C++20 header unit.

@ ModulePartitionImplementation

This is a C++20 module partition implementation.

@ PrivateModuleFragment

This is the private module fragment within some C++ module.

@ ExplicitGlobalModuleFragment

This is the explicit Global Module Fragment of a modular TU.

void dump() const

Dump the contents of this module to the given output stream.

Module * ShadowingModule

A module with the same name that shadows this module.

unsigned IsFramework

Whether this is a framework module.

std::string ExportAsModule

The module through which entities defined in this module will eventually be exposed,...

std::string getFullModuleName(bool AllowStringLiterals=false) const

Retrieve the full name of this module, including the path from its top-level module.

bool isNamedModule() const

Does this Module is a named module of a standard named module?

std::string UmbrellaAsWritten

The name of the umbrella entry, as written in the module map.

void addTopHeader(FileEntryRef File)

Add a top-level header associated with this module.

std::vector< Module * >::const_iterator submodule_const_iterator

unsigned IsAvailable

Whether this module is available in the current translation unit.

unsigned InferExplicitSubmodules

Whether, when inferring submodules, the inferred submodules should be explicit.

Module * getTopLevelModule()

Retrieve the top-level module for this (sub)module, which may be this module.

OptionalFileEntryRef getASTFile() const

The serialized AST file for this module, if one was created.

OptionalDirectoryEntryRef getEffectiveUmbrellaDir() const

Get the effective umbrella directory for this module: either the one explicitly written in the module...

bool UseExportAsModuleLinkName

Autolinking uses the framework name for linking purposes when this is false and the export_as name ot...

std::vector< Conflict > Conflicts

The list of conflicts.

Encodes a location in the source.

bool isValid() const

Return true if this is a valid SourceLocation object.

Exposes information about the current target.

A set of visible modules.

llvm::function_ref< void(ArrayRef< Module * > Path, Module *Conflict, StringRef Message)> ConflictCallback

A callback to call when a module conflict is found.

VisibleModuleSet()=default

llvm::function_ref< void(Module *M)> VisibleCallback

A callback to call when a module is made visible (directly or indirectly) by a call to setVisible.

SourceLocation getImportLoc(const Module *M) const

Get the location at which the import of a module was triggered.

bool isVisible(const Module *M) const

Determine whether a module is visible.

unsigned getGeneration() const

Get the current visibility generation.

VisibleModuleSet & operator=(VisibleModuleSet &&O)

Move from another visible modules set.

VisibleModuleSet(VisibleModuleSet &&O)

void setVisible(Module *M, SourceLocation Loc, VisibleCallback Vis=[](Module *) {}, ConflictCallback Cb=[](ArrayRef< Module * >, Module *, StringRef) {})

Make a specific module visible.

The JSON file list parser is used to communicate input to InstallAPI.

@ Other

Other implicit parameter.

Diagnostic wrappers for TextAPI types for error reporting.

The signature of a module, which is a hash of the AST content.

uint64_t truncatedValue() const

Returns the value truncated to the size of an uint64_t.

static constexpr size_t size

static ASTFileSignature create(std::array< uint8_t, 20 > Bytes)

ASTFileSignature(BaseT S={{0}})

static ASTFileSignature createDummy()

std::array< uint8_t, 20 > BaseT

static ASTFileSignature createDISentinel()

static ASTFileSignature create(InputIt First, InputIt Last)

A conflict between two modules.

Module * Other

The module that this module conflicts with.

std::string Message

The message provided to the user when there is a conflict.

Information about a directory name as found in the module map file.

std::string PathRelativeToRootModuleDirectory

std::string NameAsWritten

A library or framework to link against when an entity from this module is used.

bool IsFramework

Whether this is a framework rather than a library.

LinkLibrary(const std::string &Library, bool IsFramework)

std::string Library

The library to link against.

An unresolved conflict with another module.

std::string Message

The message provided to the user when there is a conflict.

ModuleId Id

The (unresolved) module id.

Describes an exported module that has not yet been resolved (perhaps because the module it refers to ...

bool Wildcard

Whether this export declaration ends in a wildcard, indicating that all of its submodules should be e...

ModuleId Id

The name of the module.

SourceLocation ExportLoc

The location of the 'export' keyword in the module map file.


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