clang  3.8.0
ModuleMap.h
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1 //===--- ModuleMap.h - Describe the layout of modules -----------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines the ModuleMap interface, which describes the layout of a
11 // module as it relates to headers.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 
16 #ifndef LLVM_CLANG_LEX_MODULEMAP_H
17 #define LLVM_CLANG_LEX_MODULEMAP_H
18 
20 #include "clang/Basic/Module.h"
22 #include "llvm/ADT/DenseMap.h"
23 #include "llvm/ADT/IntrusiveRefCntPtr.h"
24 #include "llvm/ADT/SmallVector.h"
25 #include "llvm/ADT/StringMap.h"
26 #include "llvm/ADT/StringRef.h"
27 #include <string>
28 
29 namespace clang {
30 
31 class DirectoryEntry;
32 class FileEntry;
33 class FileManager;
34 class DiagnosticConsumer;
35 class DiagnosticsEngine;
36 class HeaderSearch;
37 class ModuleMapParser;
38 
39 /// \brief A mechanism to observe the actions of the module map parser as it
40 /// reads module map files.
42 public:
43  virtual ~ModuleMapCallbacks() {}
44 
45  /// \brief Called when a module map file has been read.
46  ///
47  /// \param FileStart A SourceLocation referring to the start of the file's
48  /// contents.
49  /// \param File The file itself.
50  /// \param IsSystem Whether this is a module map from a system include path.
51  virtual void moduleMapFileRead(SourceLocation FileStart,
52  const FileEntry &File, bool IsSystem) {}
53 };
54 
55 class ModuleMap {
56  SourceManager &SourceMgr;
57  DiagnosticsEngine &Diags;
58  const LangOptions &LangOpts;
59  const TargetInfo *Target;
60  HeaderSearch &HeaderInfo;
61 
63 
64  /// \brief The directory used for Clang-supplied, builtin include headers,
65  /// such as "stdint.h".
66  const DirectoryEntry *BuiltinIncludeDir;
67 
68  /// \brief Language options used to parse the module map itself.
69  ///
70  /// These are always simple C language options.
71  LangOptions MMapLangOpts;
72 
73  // The module that we are building; related to \c LangOptions::CurrentModule.
74  Module *CompilingModule;
75 
76 public:
77  // The module that the .cc source file is associated with.
79  std::string SourceModuleName;
80 
81 private:
82  /// \brief The top-level modules that are known.
83  llvm::StringMap<Module *> Modules;
84 
85  /// \brief The number of modules we have created in total.
86  unsigned NumCreatedModules;
87 
88 public:
89  /// \brief Flags describing the role of a module header.
91  /// \brief This header is normally included in the module.
92  NormalHeader = 0x0,
93  /// \brief This header is included but private.
95  /// \brief This header is part of the module (for layering purposes) but
96  /// should be textually included.
98  // Caution: Adding an enumerator needs other changes.
99  // Adjust the number of bits for KnownHeader::Storage.
100  // Adjust the bitfield HeaderFileInfo::HeaderRole size.
101  // Adjust the HeaderFileInfoTrait::ReadData streaming.
102  // Adjust the HeaderFileInfoTrait::EmitData streaming.
103  // Adjust ModuleMap::addHeader.
104  };
105 
106  /// \brief A header that is known to reside within a given module,
107  /// whether it was included or excluded.
108  class KnownHeader {
109  llvm::PointerIntPair<Module *, 2, ModuleHeaderRole> Storage;
110 
111  public:
112  KnownHeader() : Storage(nullptr, NormalHeader) { }
113  KnownHeader(Module *M, ModuleHeaderRole Role) : Storage(M, Role) { }
114 
115  friend bool operator==(const KnownHeader &A, const KnownHeader &B) {
116  return A.Storage == B.Storage;
117  }
118  friend bool operator!=(const KnownHeader &A, const KnownHeader &B) {
119  return A.Storage != B.Storage;
120  }
121 
122  /// \brief Retrieve the module the header is stored in.
123  Module *getModule() const { return Storage.getPointer(); }
124 
125  /// \brief The role of this header within the module.
126  ModuleHeaderRole getRole() const { return Storage.getInt(); }
127 
128  /// \brief Whether this header is available in the module.
129  bool isAvailable() const {
130  return getModule()->isAvailable();
131  }
132 
133  // \brief Whether this known header is valid (i.e., it has an
134  // associated module).
135  explicit operator bool() const {
136  return Storage.getPointer() != nullptr;
137  }
138  };
139 
140  typedef llvm::SmallPtrSet<const FileEntry *, 1> AdditionalModMapsSet;
141 
142 private:
143  typedef llvm::DenseMap<const FileEntry *, SmallVector<KnownHeader, 1> >
144  HeadersMap;
145 
146  /// \brief Mapping from each header to the module that owns the contents of
147  /// that header.
148  HeadersMap Headers;
149 
150  /// \brief Mapping from directories with umbrella headers to the module
151  /// that is generated from the umbrella header.
152  ///
153  /// This mapping is used to map headers that haven't explicitly been named
154  /// in the module map over to the module that includes them via its umbrella
155  /// header.
156  llvm::DenseMap<const DirectoryEntry *, Module *> UmbrellaDirs;
157 
158  /// \brief The set of attributes that can be attached to a module.
159  struct Attributes {
160  Attributes() : IsSystem(), IsExternC(), IsExhaustive() {}
161 
162  /// \brief Whether this is a system module.
163  unsigned IsSystem : 1;
164 
165  /// \brief Whether this is an extern "C" module.
166  unsigned IsExternC : 1;
167 
168  /// \brief Whether this is an exhaustive set of configuration macros.
169  unsigned IsExhaustive : 1;
170  };
171 
172  /// \brief A directory for which framework modules can be inferred.
173  struct InferredDirectory {
174  InferredDirectory() : InferModules() {}
175 
176  /// \brief Whether to infer modules from this directory.
177  unsigned InferModules : 1;
178 
179  /// \brief The attributes to use for inferred modules.
180  Attributes Attrs;
181 
182  /// \brief If \c InferModules is non-zero, the module map file that allowed
183  /// inferred modules. Otherwise, nullptr.
184  const FileEntry *ModuleMapFile;
185 
186  /// \brief The names of modules that cannot be inferred within this
187  /// directory.
188  SmallVector<std::string, 2> ExcludedModules;
189  };
190 
191  /// \brief A mapping from directories to information about inferring
192  /// framework modules from within those directories.
193  llvm::DenseMap<const DirectoryEntry *, InferredDirectory> InferredDirectories;
194 
195  /// A mapping from an inferred module to the module map that allowed the
196  /// inference.
197  llvm::DenseMap<const Module *, const FileEntry *> InferredModuleAllowedBy;
198 
199  llvm::DenseMap<const Module *, AdditionalModMapsSet> AdditionalModMaps;
200 
201  /// \brief Describes whether we haved parsed a particular file as a module
202  /// map.
203  llvm::DenseMap<const FileEntry *, bool> ParsedModuleMap;
204 
205  friend class ModuleMapParser;
206 
207  /// \brief Resolve the given export declaration into an actual export
208  /// declaration.
209  ///
210  /// \param Mod The module in which we're resolving the export declaration.
211  ///
212  /// \param Unresolved The export declaration to resolve.
213  ///
214  /// \param Complain Whether this routine should complain about unresolvable
215  /// exports.
216  ///
217  /// \returns The resolved export declaration, which will have a NULL pointer
218  /// if the export could not be resolved.
220  resolveExport(Module *Mod, const Module::UnresolvedExportDecl &Unresolved,
221  bool Complain) const;
222 
223  /// \brief Resolve the given module id to an actual module.
224  ///
225  /// \param Id The module-id to resolve.
226  ///
227  /// \param Mod The module in which we're resolving the module-id.
228  ///
229  /// \param Complain Whether this routine should complain about unresolvable
230  /// module-ids.
231  ///
232  /// \returns The resolved module, or null if the module-id could not be
233  /// resolved.
234  Module *resolveModuleId(const ModuleId &Id, Module *Mod, bool Complain) const;
235 
236  /// \brief Looks up the modules that \p File corresponds to.
237  ///
238  /// If \p File represents a builtin header within Clang's builtin include
239  /// directory, this also loads all of the module maps to see if it will get
240  /// associated with a specific module (e.g. in /usr/include).
241  HeadersMap::iterator findKnownHeader(const FileEntry *File);
242 
243  /// \brief Searches for a module whose umbrella directory contains \p File.
244  ///
245  /// \param File The header to search for.
246  ///
247  /// \param IntermediateDirs On success, contains the set of directories
248  /// searched before finding \p File.
249  KnownHeader findHeaderInUmbrellaDirs(const FileEntry *File,
250  SmallVectorImpl<const DirectoryEntry *> &IntermediateDirs);
251 
252  /// \brief Given that \p File is not in the Headers map, look it up within
253  /// umbrella directories and find or create a module for it.
254  KnownHeader findOrCreateModuleForHeaderInUmbrellaDir(const FileEntry *File);
255 
256  /// \brief A convenience method to determine if \p File is (possibly nested)
257  /// in an umbrella directory.
258  bool isHeaderInUmbrellaDirs(const FileEntry *File) {
260  return static_cast<bool>(findHeaderInUmbrellaDirs(File, IntermediateDirs));
261  }
262 
263  Module *inferFrameworkModule(const DirectoryEntry *FrameworkDir,
264  Attributes Attrs, Module *Parent);
265 
266 public:
267  /// \brief Construct a new module map.
268  ///
269  /// \param SourceMgr The source manager used to find module files and headers.
270  /// This source manager should be shared with the header-search mechanism,
271  /// since they will refer to the same headers.
272  ///
273  /// \param Diags A diagnostic engine used for diagnostics.
274  ///
275  /// \param LangOpts Language options for this translation unit.
276  ///
277  /// \param Target The target for this translation unit.
279  const LangOptions &LangOpts, const TargetInfo *Target,
280  HeaderSearch &HeaderInfo);
281 
282  /// \brief Destroy the module map.
283  ///
284  ~ModuleMap();
285 
286  /// \brief Set the target information.
287  void setTarget(const TargetInfo &Target);
288 
289  /// \brief Set the directory that contains Clang-supplied include
290  /// files, such as our stdarg.h or tgmath.h.
292  BuiltinIncludeDir = Dir;
293  }
294 
295  /// \brief Add a module map callback.
296  void addModuleMapCallbacks(std::unique_ptr<ModuleMapCallbacks> Callback) {
297  Callbacks.push_back(std::move(Callback));
298  }
299 
300  /// \brief Retrieve the module that owns the given header file, if any.
301  ///
302  /// \param File The header file that is likely to be included.
303  ///
304  /// \returns The module KnownHeader, which provides the module that owns the
305  /// given header file. The KnownHeader is default constructed to indicate
306  /// that no module owns this header file.
307  KnownHeader findModuleForHeader(const FileEntry *File);
308 
309  /// \brief Retrieve all the modules that contain the given header file. This
310  /// may not include umbrella modules, nor information from external sources,
311  /// if they have not yet been inferred / loaded.
312  ///
313  /// Typically, \ref findModuleForHeader should be used instead, as it picks
314  /// the preferred module for the header.
316 
317  /// \brief Reports errors if a module must not include a specific file.
318  ///
319  /// \param RequestingModule The module including a file.
320  ///
321  /// \param FilenameLoc The location of the inclusion's filename.
322  ///
323  /// \param Filename The included filename as written.
324  ///
325  /// \param File The included file.
326  void diagnoseHeaderInclusion(Module *RequestingModule,
327  SourceLocation FilenameLoc, StringRef Filename,
328  const FileEntry *File);
329 
330  /// \brief Determine whether the given header is part of a module
331  /// marked 'unavailable'.
332  bool isHeaderInUnavailableModule(const FileEntry *Header) const;
333 
334  /// \brief Determine whether the given header is unavailable as part
335  /// of the specified module.
336  bool isHeaderUnavailableInModule(const FileEntry *Header,
337  const Module *RequestingModule) const;
338 
339  /// \brief Retrieve a module with the given name.
340  ///
341  /// \param Name The name of the module to look up.
342  ///
343  /// \returns The named module, if known; otherwise, returns null.
344  Module *findModule(StringRef Name) const;
345 
346  /// \brief Retrieve a module with the given name using lexical name lookup,
347  /// starting at the given context.
348  ///
349  /// \param Name The name of the module to look up.
350  ///
351  /// \param Context The module context, from which we will perform lexical
352  /// name lookup.
353  ///
354  /// \returns The named module, if known; otherwise, returns null.
355  Module *lookupModuleUnqualified(StringRef Name, Module *Context) const;
356 
357  /// \brief Retrieve a module with the given name within the given context,
358  /// using direct (qualified) name lookup.
359  ///
360  /// \param Name The name of the module to look up.
361  ///
362  /// \param Context The module for which we will look for a submodule. If
363  /// null, we will look for a top-level module.
364  ///
365  /// \returns The named submodule, if known; otherwose, returns null.
366  Module *lookupModuleQualified(StringRef Name, Module *Context) const;
367 
368  /// \brief Find a new module or submodule, or create it if it does not already
369  /// exist.
370  ///
371  /// \param Name The name of the module to find or create.
372  ///
373  /// \param Parent The module that will act as the parent of this submodule,
374  /// or NULL to indicate that this is a top-level module.
375  ///
376  /// \param IsFramework Whether this is a framework module.
377  ///
378  /// \param IsExplicit Whether this is an explicit submodule.
379  ///
380  /// \returns The found or newly-created module, along with a boolean value
381  /// that will be true if the module is newly-created.
382  std::pair<Module *, bool> findOrCreateModule(StringRef Name, Module *Parent,
383  bool IsFramework,
384  bool IsExplicit);
385 
386  /// \brief Infer the contents of a framework module map from the given
387  /// framework directory.
388  Module *inferFrameworkModule(const DirectoryEntry *FrameworkDir,
389  bool IsSystem, Module *Parent);
390 
391  /// \brief Retrieve the module map file containing the definition of the given
392  /// module.
393  ///
394  /// \param Module The module whose module map file will be returned, if known.
395  ///
396  /// \returns The file entry for the module map file containing the given
397  /// module, or NULL if the module definition was inferred.
398  const FileEntry *getContainingModuleMapFile(const Module *Module) const;
399 
400  /// \brief Get the module map file that (along with the module name) uniquely
401  /// identifies this module.
402  ///
403  /// The particular module that \c Name refers to may depend on how the module
404  /// was found in header search. However, the combination of \c Name and
405  /// this module map will be globally unique for top-level modules. In the case
406  /// of inferred modules, returns the module map that allowed the inference
407  /// (e.g. contained 'module *'). Otherwise, returns
408  /// getContainingModuleMapFile().
409  const FileEntry *getModuleMapFileForUniquing(const Module *M) const;
410 
412 
413  /// \brief Get any module map files other than getModuleMapFileForUniquing(M)
414  /// that define submodules of a top-level module \p M. This is cheaper than
415  /// getting the module map file for each submodule individually, since the
416  /// expected number of results is very small.
418  auto I = AdditionalModMaps.find(M);
419  if (I == AdditionalModMaps.end())
420  return nullptr;
421  return &I->second;
422  }
423 
425  AdditionalModMaps[M].insert(ModuleMap);
426  }
427 
428  /// \brief Resolve all of the unresolved exports in the given module.
429  ///
430  /// \param Mod The module whose exports should be resolved.
431  ///
432  /// \param Complain Whether to emit diagnostics for failures.
433  ///
434  /// \returns true if any errors were encountered while resolving exports,
435  /// false otherwise.
436  bool resolveExports(Module *Mod, bool Complain);
437 
438  /// \brief Resolve all of the unresolved uses in the given module.
439  ///
440  /// \param Mod The module whose uses should be resolved.
441  ///
442  /// \param Complain Whether to emit diagnostics for failures.
443  ///
444  /// \returns true if any errors were encountered while resolving uses,
445  /// false otherwise.
446  bool resolveUses(Module *Mod, bool Complain);
447 
448  /// \brief Resolve all of the unresolved conflicts in the given module.
449  ///
450  /// \param Mod The module whose conflicts should be resolved.
451  ///
452  /// \param Complain Whether to emit diagnostics for failures.
453  ///
454  /// \returns true if any errors were encountered while resolving conflicts,
455  /// false otherwise.
456  bool resolveConflicts(Module *Mod, bool Complain);
457 
458  /// \brief Infers the (sub)module based on the given source location and
459  /// source manager.
460  ///
461  /// \param Loc The location within the source that we are querying, along
462  /// with its source manager.
463  ///
464  /// \returns The module that owns this source location, or null if no
465  /// module owns this source location.
467 
468  /// \brief Sets the umbrella header of the given module to the given
469  /// header.
470  void setUmbrellaHeader(Module *Mod, const FileEntry *UmbrellaHeader,
471  Twine NameAsWritten);
472 
473  /// \brief Sets the umbrella directory of the given module to the given
474  /// directory.
475  void setUmbrellaDir(Module *Mod, const DirectoryEntry *UmbrellaDir,
476  Twine NameAsWritten);
477 
478  /// \brief Adds this header to the given module.
479  /// \param Role The role of the header wrt the module.
480  void addHeader(Module *Mod, Module::Header Header,
481  ModuleHeaderRole Role, bool Imported = false);
482 
483  /// \brief Marks this header as being excluded from the given module.
484  void excludeHeader(Module *Mod, Module::Header Header);
485 
486  /// \brief Parse the given module map file, and record any modules we
487  /// encounter.
488  ///
489  /// \param File The file to be parsed.
490  ///
491  /// \param IsSystem Whether this module map file is in a system header
492  /// directory, and therefore should be considered a system module.
493  ///
494  /// \param HomeDir The directory in which relative paths within this module
495  /// map file will be resolved.
496  ///
497  /// \param ExternModuleLoc The location of the "extern module" declaration
498  /// that caused us to load this module map file, if any.
499  ///
500  /// \returns true if an error occurred, false otherwise.
501  bool parseModuleMapFile(const FileEntry *File, bool IsSystem,
502  const DirectoryEntry *HomeDir,
503  SourceLocation ExternModuleLoc = SourceLocation());
504 
505  /// \brief Dump the contents of the module map, for debugging purposes.
506  void dump();
507 
508  typedef llvm::StringMap<Module *>::const_iterator module_iterator;
509  module_iterator module_begin() const { return Modules.begin(); }
510  module_iterator module_end() const { return Modules.end(); }
511 };
512 
513 }
514 #endif
Module * getModule() const
Retrieve the module the header is stored in.
Definition: ModuleMap.h:123
ModuleMap(SourceManager &SourceMgr, DiagnosticsEngine &Diags, const LangOptions &LangOpts, const TargetInfo *Target, HeaderSearch &HeaderInfo)
Construct a new module map.
Definition: ModuleMap.cpp:87
Module * lookupModuleQualified(StringRef Name, Module *Context) const
Retrieve a module with the given name within the given context, using direct (qualified) name lookup...
Definition: ModuleMap.cpp:542
This header is included but private.
Definition: ModuleMap.h:94
bool parseModuleMapFile(const FileEntry *File, bool IsSystem, const DirectoryEntry *HomeDir, SourceLocation ExternModuleLoc=SourceLocation())
Parse the given module map file, and record any modules we encounter.
Definition: ModuleMap.cpp:2433
module_iterator module_begin() const
Definition: ModuleMap.h:509
Module * findModule(StringRef Name) const
Retrieve a module with the given name.
Definition: ModuleMap.cpp:524
This header is part of the module (for layering purposes) but should be textually included...
Definition: ModuleMap.h:97
bool isHeaderInUnavailableModule(const FileEntry *Header) const
Determine whether the given header is part of a module marked 'unavailable'.
Definition: ModuleMap.cpp:438
Defines the SourceManager interface.
llvm::SmallPtrSet< const FileEntry *, 1 > AdditionalModMapsSet
Definition: ModuleMap.h:140
Defines the clang::Module class, which describes a module in the source code.
void excludeHeader(Module *Mod, Module::Header Header)
Marks this header as being excluded from the given module.
Definition: ModuleMap.cpp:824
friend bool operator!=(const KnownHeader &A, const KnownHeader &B)
Definition: ModuleMap.h:118
bool resolveUses(Module *Mod, bool Complain)
Resolve all of the unresolved uses in the given module.
Definition: ModuleMap.cpp:891
bool isHeaderUnavailableInModule(const FileEntry *Header, const Module *RequestingModule) const
Determine whether the given header is unavailable as part of the specified module.
Definition: ModuleMap.cpp:443
class LLVM_ALIGNAS(8) DependentTemplateSpecializationType const IdentifierInfo * Name
Represents a template specialization type whose template cannot be resolved, e.g. ...
Definition: Type.h:4381
bool resolveConflicts(Module *Mod, bool Complain)
Resolve all of the unresolved conflicts in the given module.
Definition: ModuleMap.cpp:904
void setUmbrellaDir(Module *Mod, const DirectoryEntry *UmbrellaDir, Twine NameAsWritten)
Sets the umbrella directory of the given module to the given directory.
Definition: ModuleMap.cpp:779
std::string SourceModuleName
Definition: ModuleMap.h:79
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:48
Describes a module or submodule.
Definition: Basic/Module.h:47
bool isAvailable() const
Determine whether this module is available for use within the current translation unit...
Definition: Basic/Module.h:314
ArrayRef< KnownHeader > findAllModulesForHeader(const FileEntry *File) const
Retrieve all the modules that contain the given header file.
Definition: ModuleMap.cpp:431
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:135
module_iterator module_end() const
Definition: ModuleMap.h:510
const FileEntry * getContainingModuleMapFile(const Module *Module) const
Retrieve the module map file containing the definition of the given module.
Definition: ModuleMap.cpp:835
void addModuleMapCallbacks(std::unique_ptr< ModuleMapCallbacks > Callback)
Add a module map callback.
Definition: ModuleMap.h:296
detail::InMemoryDirectory::const_iterator I
void setTarget(const TargetInfo &Target)
Set the target information.
Definition: ModuleMap.cpp:104
Encapsulates the information needed to find the file referenced by a #include or #include_next, (sub-)framework lookup, etc.
Definition: HeaderSearch.h:137
llvm::StringMap< Module * >::const_iterator module_iterator
Definition: ModuleMap.h:508
void diagnoseHeaderInclusion(Module *RequestingModule, SourceLocation FilenameLoc, StringRef Filename, const FileEntry *File)
Reports errors if a module must not include a specific file.
Definition: ModuleMap.cpp:243
ModuleHeaderRole
Flags describing the role of a module header.
Definition: ModuleMap.h:90
StringRef Filename
Definition: Format.cpp:1723
ASTContext * Context
Exposes information about the current target.
Defines the clang::LangOptions interface.
void dump()
Dump the contents of the module map, for debugging purposes.
Definition: ModuleMap.cpp:856
MatchFinder::MatchCallback * Callback
Module * lookupModuleUnqualified(StringRef Name, Module *Context) const
Retrieve a module with the given name using lexical name lookup, starting at the given context...
Definition: ModuleMap.cpp:532
SourceManager & SourceMgr
Definition: Format.cpp:1352
virtual void moduleMapFileRead(SourceLocation FileStart, const FileEntry &File, bool IsSystem)
Called when a module map file has been read.
Definition: ModuleMap.h:51
bool isAvailable() const
Whether this header is available in the module.
Definition: ModuleMap.h:129
#define bool
Definition: stdbool.h:31
bool resolveExports(Module *Mod, bool Complain)
Resolve all of the unresolved exports in the given module.
Definition: ModuleMap.cpp:878
SmallVector< std::pair< std::string, SourceLocation >, 2 > ModuleId
Describes the name of a module.
Definition: Basic/Module.h:41
void setUmbrellaHeader(Module *Mod, const FileEntry *UmbrellaHeader, Twine NameAsWritten)
Sets the umbrella header of the given module to the given header.
Definition: ModuleMap.cpp:771
A mechanism to observe the actions of the module map parser as it reads module map files...
Definition: ModuleMap.h:41
Information about a header directive as found in the module map file.
Definition: Basic/Module.h:109
void addAdditionalModuleMapFile(const Module *M, const FileEntry *ModuleMap)
Definition: ModuleMap.h:424
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.
Definition: ModuleMap.cpp:550
void setBuiltinIncludeDir(const DirectoryEntry *Dir)
Set the directory that contains Clang-supplied include files, such as our stdarg.h or tgmath...
Definition: ModuleMap.h:291
Encodes a location in the source.
const TemplateArgument * iterator
Definition: Type.h:4070
Cached information about one file (either on disk or in the virtual file system). ...
Definition: FileManager.h:53
This header is normally included in the module.
Definition: ModuleMap.h:92
void addHeader(Module *Mod, Module::Header Header, ModuleHeaderRole Role, bool Imported=false)
Adds this header to the given module.
Definition: ModuleMap.cpp:800
Module * inferModuleFromLocation(FullSourceLoc Loc)
Infers the (sub)module based on the given source location and source manager.
Definition: ModuleMap.cpp:919
const FileEntry * getModuleMapFileForUniquing(const Module *M) const
Get the module map file that (along with the module name) uniquely identifies this module...
Definition: ModuleMap.cpp:843
AdditionalModMapsSet * getAdditionalModuleMapFiles(const Module *M)
Get any module map files other than getModuleMapFileForUniquing(M) that define submodules of a top-le...
Definition: ModuleMap.h:417
Describes an exported module that has not yet been resolved (perhaps because the module it refers to ...
Definition: Basic/Module.h:234
KnownHeader findModuleForHeader(const FileEntry *File)
Retrieve the module that owns the given header file, if any.
Definition: ModuleMap.cpp:334
Cached information about one directory (either on disk or in the virtual file system).
Definition: FileManager.h:40
KnownHeader(Module *M, ModuleHeaderRole Role)
Definition: ModuleMap.h:113
ModuleHeaderRole getRole() const
The role of this header within the module.
Definition: ModuleMap.h:126
llvm::PointerIntPair< Module *, 1, bool > ExportDecl
Describes an exported module.
Definition: Basic/Module.h:227
A SourceLocation and its associated SourceManager.
~ModuleMap()
Destroy the module map.
Definition: ModuleMap.cpp:96
virtual ~ModuleMapCallbacks()
Definition: ModuleMap.h:43
Module * SourceModule
Definition: ModuleMap.h:78
friend bool operator==(const KnownHeader &A, const KnownHeader &B)
Definition: ModuleMap.h:115
A header that is known to reside within a given module, whether it was included or excluded...
Definition: ModuleMap.h:108
void setInferredModuleAllowedBy(Module *M, const FileEntry *ModuleMap)
Definition: ModuleMap.cpp:851
This class handles loading and caching of source files into memory.