ModuleMap.cpp File Reference

#include "clang/Lex/ModuleMap.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/Module.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/HeaderSearchOptions.h"
#include "clang/Lex/LexDiagnostic.h"
#include "clang/Lex/Lexer.h"
#include "clang/Lex/LiteralSupport.h"
#include "clang/Lex/Token.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <cstring>
#include <optional>
#include <string>
#include <system_error>
#include <utility>
#include "clang/Basic/TokenKinds.def"

Go to the source code of this file.

Classes
struct	clang::MMToken
	A token in a module map file. More...
class	clang::ModuleMapParser

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

Macros
#define	KEYWORD(Keyword, Conditions)   .Case(#Keyword, true)
#define	ALIAS(Keyword, AliasOf, Conditions)   .Case(Keyword, true)

Functions
static void	appendSubframeworkPaths (Module *Mod, SmallVectorImpl< char > &Path)
	Append to Paths the set of paths needed to get to the subframework in which the given module lives.
static bool	isBuiltinHeaderName (StringRef FileName)
	Determine whether the given file name is the name of a builtin header, supplied by Clang to replace, override, or augment existing system headers.
static bool	isBuiltInModuleName (StringRef ModuleName)
	Determine whether the given module name is the name of a builtin module that is cyclic with a system module on some platforms.
static StringRef	sanitizeFilenameAsIdentifier (StringRef Name, SmallVectorImpl< char > &Buffer)
	"Sanitize" a filename so that it can be used as an identifier.
static bool	violatesPrivateInclude (Module *RequestingModule, const FileEntry *IncFileEnt, ModuleMap::KnownHeader Header)
static Module *	getTopLevelOrNull (Module *M)
static bool	isBetterKnownHeader (const ModuleMap::KnownHeader &New, const ModuleMap::KnownHeader &Old)
static void	inferFrameworkLink (Module *Mod)
	For a framework module, infer the framework against which we should link.
static bool	shouldAddRequirement (Module *M, StringRef Feature, bool &IsRequiresExcludedHack)
	Whether to add the requirement Feature to the module M.
static bool	compareModuleHeaders (const Module::Header &A, const Module::Header &B)
static std::string	formatModuleId (const ModuleId &Id)
	Format a module-id into a string.

Macro Definition Documentation

ALIAS

#define ALIAS	(		Keyword,
			AliasOf,
			Conditions
	)		.Case(Keyword, true)

KEYWORD

#define KEYWORD	(		Keyword,
			Conditions
	)		.Case(#Keyword, true)

Function Documentation

appendSubframeworkPaths()

static void appendSubframeworkPaths ( Module *  Mod, SmallVectorImpl< char > &  Path  )

static

Append to Paths the set of paths needed to get to the subframework in which the given module lives.

Definition at line 163 of file ModuleMap.cpp.

References clang::Module::IsFramework, clang::Module::Name, and clang::Module::Parent.

compareModuleHeaders()

static bool compareModuleHeaders ( const Module::Header &  A, const Module::Header &  B  )

static

Definition at line 2522 of file ModuleMap.cpp.

References clang::Module::Header::NameAsWritten.

formatModuleId()

static std::string formatModuleId ( const ModuleId &  Id )

static

Format a module-id into a string.

Definition at line 2794 of file ModuleMap.cpp.

References Id.

getTopLevelOrNull()

static Module * getTopLevelOrNull ( Module *  M )

static

Definition at line 492 of file ModuleMap.cpp.

References clang::Module::getTopLevelModule().

Referenced by clang::ModuleMap::diagnoseHeaderInclusion().

inferFrameworkLink()

static void inferFrameworkLink ( Module *  Mod )

static

For a framework module, infer the framework against which we should link.

Definition at line 981 of file ModuleMap.cpp.

References clang::Module::IsFramework, clang::Module::isSubFramework(), clang::Module::LinkLibraries, and clang::Module::Name.

isBetterKnownHeader()

static bool isBetterKnownHeader ( const ModuleMap::KnownHeader &  New, const ModuleMap::KnownHeader &  Old  )

static

Definition at line 578 of file ModuleMap.cpp.

References clang::ModuleMap::ExcludedHeader, clang::ModuleMap::KnownHeader::getModule(), clang::ModuleMap::KnownHeader::getRole(), clang::Module::isAvailable(), clang::ModuleMap::PrivateHeader, and clang::ModuleMap::TextualHeader.

Referenced by clang::ModuleMap::findModuleForHeader().

isBuiltinHeaderName()

static bool isBuiltinHeaderName ( StringRef  FileName )

static

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 259 of file ModuleMap.cpp.

References clang::FileName.

Referenced by clang::ModuleMap::isBuiltinHeader(), and clang::ModuleMap::shouldImportRelativeToBuiltinIncludeDir().

isBuiltInModuleName()

static bool isBuiltInModuleName ( StringRef  ModuleName )

static

Determine whether the given module name is the name of a builtin module that is cyclic with a system module on some platforms.

Definition at line 277 of file ModuleMap.cpp.

sanitizeFilenameAsIdentifier()

static StringRef sanitizeFilenameAsIdentifier ( StringRef  Name, SmallVectorImpl< char > &  Buffer  )

static

"Sanitize" a filename so that it can be used as an identifier.

Definition at line 379 of file ModuleMap.cpp.

References ALIAS, clang::Default, clang::isAsciiIdentifierContinue(), clang::isDigit(), clang::isValidAsciiIdentifier(), and KEYWORD.

Referenced by clang::ModuleMap::isHeaderUnavailableInModule().

shouldAddRequirement()

static bool shouldAddRequirement ( Module *  M, StringRef  Feature, bool &  IsRequiresExcludedHack  )

static

Whether to add the requirement Feature to the module M.

This preserves backwards compatibility for two hacks in the Darwin system module map files:

1. The use of 'requires excluded' to make headers non-modular, which should really be mapped to 'textual' now that we have this feature. We drop the 'excluded' requirement, and set IsRequiresExcludedHack to true. Later, this bit will be used to map all the headers inside this module to 'textual'.

   This affects Darwin.C.excluded (for assert.h) and Tcl.Private.

2. Removes a bogus cplusplus requirement from IOKit.avc. This requirement was never correct and causes issues now that we check it, so drop it.

Definition at line 2315 of file ModuleMap.cpp.

References clang::Module::fullModuleNameIs().

violatesPrivateInclude()

static bool violatesPrivateInclude ( Module *  RequestingModule, const FileEntry *  IncFileEnt, ModuleMap::KnownHeader  Header  )

static

Definition at line 471 of file ModuleMap.cpp.

References clang::Module::Header::Entry, clang::ModuleMap::KnownHeader::getModule(), clang::ModuleMap::KnownHeader::getRole(), clang::Module::Headers, clang::Module::HK_Private, clang::Module::HK_PrivateTextual, clang::ModuleMap::KnownHeader::isAccessibleFrom(), and clang::ModuleMap::PrivateHeader.

Referenced by clang::ModuleMap::diagnoseHeaderInclusion().