HeaderSearch.h revision 8f5d7d1d1f990f174c7f2682271a83acf64dd93d
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- HeaderSearch.h - Resolve Header File Locations ---------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the HeaderSearch interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_LEX_HEADERSEARCH_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_LEX_HEADERSEARCH_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Lex/DirectoryLookup.h" 18a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor#include "clang/Lex/ModuleMap.h" 19f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith#include "llvm/ADT/ArrayRef.h" 20c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor#include "llvm/ADT/IntrusiveRefCntPtr.h" 2130a2e16f6c27f888dd11eba6bbbae1e980078fcbChandler Carruth#include "llvm/ADT/OwningPtr.h" 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/StringMap.h" 2365e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor#include "llvm/ADT/StringSet.h" 24d1194fbbf65374bfa3578eb40a547e4f97b497d1Ted Kremenek#include "llvm/Support/Allocator.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 288e23806863721495f9e1f84aed614f7afba774a3Douglas Gregor 298e23806863721495f9e1f84aed614f7afba774a3Douglas Gregorclass DiagnosticsEngine; 308c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregorclass ExternalIdentifierLookup; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FileEntry; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FileManager; 33c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregorclass HeaderSearchOptions; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IdentifierInfo; 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett/// \brief The preprocessor keeps track of this information for each 37809d1be9820039b4cf6efa48246a0d70ffa13394James Dennett/// file that is \#included. 3883d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroffstruct HeaderFileInfo { 39a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief True if this is a \#import'd or \#pragma once file. 40cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor unsigned isImport : 1; 411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief True if this is a \#pragma once file. 43dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor unsigned isPragmaOnce : 1; 44dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor 4583d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff /// DirInfo - Keep track of whether this is a system header, and if so, 4683d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff /// whether it is C++ clean or not. This can be set by the include paths or 47a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// by \#pragma gcc system_header. This is an instance of 4883d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff /// SrcMgr::CharacteristicKind. 4983d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff unsigned DirInfo : 2; 501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 51cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief Whether this header file info was supplied by an external source. 52cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor unsigned External : 1; 5355ea75bf61a5d76f6453513d937944ce68181c6aArgyrios Kyrtzidis 5455ea75bf61a5d76f6453513d937944ce68181c6aArgyrios Kyrtzidis /// \brief Whether this header is part of a module. 5555ea75bf61a5d76f6453513d937944ce68181c6aArgyrios Kyrtzidis unsigned isModuleHeader : 1; 56d3220dbeeadc4ac54ceecea8cf63f8d8be291d2aArgyrios Kyrtzidis 57d3220dbeeadc4ac54ceecea8cf63f8d8be291d2aArgyrios Kyrtzidis /// \brief Whether this header is part of the module that we are building. 58d3220dbeeadc4ac54ceecea8cf63f8d8be291d2aArgyrios Kyrtzidis unsigned isCompilingModuleHeader : 1; 59bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl 60bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl /// \brief Whether this header is part of the module that we are building. 61bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl /// This is an instance of ModuleMap::ModuleHeaderRole. 62bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl unsigned HeaderRole : 2; 63cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 64cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief Whether this structure is considered to already have been 65cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// "resolved", meaning that it was loaded from the external source. 66cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor unsigned Resolved : 1; 67cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 6865e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// \brief Whether this is a header inside a framework that is currently 6965e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// being built. 7065e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// 7165e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// When a framework is being built, the headers have not yet been placed 7265e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// into the appropriate framework subdirectories, and therefore are 7365e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// provided via a header map. This bit indicates when this is one of 7465e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// those framework headers. 7565e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor unsigned IndexHeaderMapHeader : 1; 7665e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor 77a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief The number of times the file has been included already. 7883d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff unsigned short NumIncludes; 791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief The ID number of the controlling macro. 81cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// 82cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// This ID number will be non-zero when there is a controlling 83cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// macro whose IdentifierInfo may not yet have been loaded from 84cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// external storage. 85cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor unsigned ControllingMacroID; 86cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 87a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// If this file has a \#ifndef XXX (or equivalent) guard that 88a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// protects the entire contents of the file, this is the identifier 8983d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff /// for the macro that controls whether or not it has any effect. 908c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// 918c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// Note: Most clients should use getControllingMacro() to access 928c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// the controlling macro of this header, since 938c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// getControllingMacro() is able to load a controlling macro from 948c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// external storage. 9583d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff const IdentifierInfo *ControllingMacro; 968c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor 9765e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// \brief If this header came from a framework include, this is the name 9865e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// of the framework. 9965e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor StringRef Framework; 10065e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor 1011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump HeaderFileInfo() 102dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor : isImport(false), isPragmaOnce(false), DirInfo(SrcMgr::C_User), 103d3220dbeeadc4ac54ceecea8cf63f8d8be291d2aArgyrios Kyrtzidis External(false), isModuleHeader(false), isCompilingModuleHeader(false), 104bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl HeaderRole(ModuleMap::NormalHeader), 105d3220dbeeadc4ac54ceecea8cf63f8d8be291d2aArgyrios Kyrtzidis Resolved(false), IndexHeaderMapHeader(false), 10665e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor NumIncludes(0), ControllingMacroID(0), ControllingMacro(0) {} 1078c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor 1088c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// \brief Retrieve the controlling macro for this header file, if 1098c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// any. 1108c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor const IdentifierInfo *getControllingMacro(ExternalIdentifierLookup *External); 111cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 112cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief Determine whether this is a non-default header file info, e.g., 113cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// it corresponds to an actual header we've included or tried to include. 114cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor bool isNonDefault() const { 115dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor return isImport || isPragmaOnce || NumIncludes || ControllingMacro || 116dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor ControllingMacroID; 117cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor } 118bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl 119bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl /// \brief Get the HeaderRole properly typed. 120bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl ModuleMap::ModuleHeaderRole getHeaderRole() const { 121bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl return static_cast<ModuleMap::ModuleHeaderRole>(HeaderRole); 122bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl } 123bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl 124bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl /// \brief Set the HeaderRole properly typed. 125bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl void setHeaderRole(ModuleMap::ModuleHeaderRole Role) { 126bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl HeaderRole = Role; 127bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl } 12883d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff}; 12983d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff 130cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor/// \brief An external source of header file information, which may supply 131cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor/// information about header files already included. 132cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregorclass ExternalHeaderFileInfoSource { 133cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregorpublic: 134cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor virtual ~ExternalHeaderFileInfoSource(); 135cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 136cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief Retrieve the header file information for the given file entry. 137cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// 138cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \returns Header file information for the given file entry, with the 139cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \c External bit set. If the file entry is not known, return a 140cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// default-constructed \c HeaderFileInfo. 141cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor virtual HeaderFileInfo GetHeaderFileInfo(const FileEntry *FE) = 0; 142cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor}; 143cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 144a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett/// \brief Encapsulates the information needed to find the file referenced 145a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett/// by a \#include or \#include_next, (sub-)framework lookup, etc. 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass HeaderSearch { 1479ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar /// This structure is used to record entries in our framework cache. 1489ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar struct FrameworkCacheEntry { 1499ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar /// The directory entry which should be used for the cached framework. 1509ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar const DirectoryEntry *Directory; 15185ff9693b178658f9d8af7be30a086fb1ab81fddDaniel Dunbar 15285ff9693b178658f9d8af7be30a086fb1ab81fddDaniel Dunbar /// Whether this framework has been "user-specified" to be treated as if it 15385ff9693b178658f9d8af7be30a086fb1ab81fddDaniel Dunbar /// were a system framework (even if it was found outside a system framework 15485ff9693b178658f9d8af7be30a086fb1ab81fddDaniel Dunbar /// directory). 15585ff9693b178658f9d8af7be30a086fb1ab81fddDaniel Dunbar bool IsUserSpecifiedSystemFramework; 1569ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar }; 1579ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar 158c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor /// \brief Header-search options used to initialize this header search. 159cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko IntrusiveRefCntPtr<HeaderSearchOptions> HSOpts; 160c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FileManager &FileMgr; 162a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \#include search path information. Requests for \#include "x" search the 163a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// directory of the \#including file first, then each directory in SearchDirs 16474a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber /// consecutively. Requests for <x> search the current dir first, then each 16574a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber /// directory in SearchDirs, starting at AngledDirIdx, consecutively. If 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// NoCurDirSearch is true, then the check for the file in the current 167fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// directory is suppressed. 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer std::vector<DirectoryLookup> SearchDirs; 16974a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber unsigned AngledDirIdx; 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned SystemDirIdx; 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool NoCurDirSearch; 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief \#include prefixes for which the 'system header' property is 174a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// overridden. 175a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// 176a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// For a \#include "x" or \#include \<x> directive, the last string in this 177f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith /// list which is a prefix of 'x' determines whether the file is treated as 178f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith /// a system header. 179f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith std::vector<std::pair<std::string, bool> > SystemHeaderPrefixes; 180f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith 1819a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor /// \brief The path to the module cache. 1829a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor std::string ModuleCachePath; 1839a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor 184a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief All of the preprocessor-specific data about files that are 185a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// included, indexed by the FileEntry's UID. 18683d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff std::vector<HeaderFileInfo> FileInfo; 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 188a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Keeps track of each lookup performed by LookupFile. 189a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// 190a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// The first part of the value is the starting index in SearchDirs 191a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// that the cached search was performed from. If there is a hit and 192a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// this value doesn't match the current query, the cache has to be 193a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// ignored. The second value is the entry in SearchDirs that satisfied 194a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// the query. 195d1194fbbf65374bfa3578eb40a547e4f97b497d1Ted Kremenek llvm::StringMap<std::pair<unsigned, unsigned>, llvm::BumpPtrAllocator> 196d1194fbbf65374bfa3578eb40a547e4f97b497d1Ted Kremenek LookupFileCache; 1971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Collection mapping a framework or subframework 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// name like "Carbon" to the Carbon.framework directory. 2009ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar llvm::StringMap<FrameworkCacheEntry, llvm::BumpPtrAllocator> FrameworkMap; 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2024c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// IncludeAliases - maps include file names (including the quotes or 2034c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// angle brackets) to other include file names. This is used to support the 2044c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// include_alias pragma for Microsoft compatibility. 2054c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman typedef llvm::StringMap<std::string, llvm::BumpPtrAllocator> 2064c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman IncludeAliasMap; 2074c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman OwningPtr<IncludeAliasMap> IncludeAliases; 2084c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman 2091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// HeaderMaps - This is a mapping from FileEntry -> HeaderMap, uniquing 210822da61b74ce14e89b3fa8774db18c833aa5748bChris Lattner /// headermaps. This vector owns the headermap. 211822da61b74ce14e89b3fa8774db18c833aa5748bChris Lattner std::vector<std::pair<const FileEntry*, const HeaderMap*> > HeaderMaps; 2128c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor 213a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// \brief The mapping between modules and headers. 21455ea75bf61a5d76f6453513d937944ce68181c6aArgyrios Kyrtzidis mutable ModuleMap ModMap; 215a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor 216a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// \brief Describes whether a given directory has a module map in it. 217a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor llvm::DenseMap<const DirectoryEntry *, bool> DirectoryHasModuleMap; 218a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor 21965e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// \brief Uniqued set of framework names, which is used to track which 22065e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// headers were included as framework headers. 22165e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor llvm::StringSet<llvm::BumpPtrAllocator> FrameworkNames; 22265e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor 2238c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// \brief Entity used to resolve the identifier IDs of controlling 2248c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor /// macros into IdentifierInfo pointers, as needed. 2258c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor ExternalIdentifierLookup *ExternalLookup; 2268c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor 227cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief Entity used to look up stored header file information. 228cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor ExternalHeaderFileInfoSource *ExternalSource; 229cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Various statistics we track for performance analysis. 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumIncluded; 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumMultiIncludeFileOptzn; 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFrameworkLookups, NumSubFrameworkLookups; 23449c1f4aa2a6c360d25d605004ec3c4affd62db77Steve Naroff 23549c1f4aa2a6c360d25d605004ec3c4affd62db77Steve Naroff // HeaderSearch doesn't support default or copy construction. 236be2fa7ebf01259b63dc52fe46c8d101c18e72269Craig Topper HeaderSearch(const HeaderSearch&) LLVM_DELETED_FUNCTION; 237be2fa7ebf01259b63dc52fe46c8d101c18e72269Craig Topper void operator=(const HeaderSearch&) LLVM_DELETED_FUNCTION; 238be2fa7ebf01259b63dc52fe46c8d101c18e72269Craig Topper 239e434ec71fccfe078906403affd641f709702d598Douglas Gregor friend class DirectoryLookup; 240e434ec71fccfe078906403affd641f709702d598Douglas Gregor 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 242cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko HeaderSearch(IntrusiveRefCntPtr<HeaderSearchOptions> HSOpts, 243c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor FileManager &FM, DiagnosticsEngine &Diags, 244dc58aa71026cce539ca9b5c2c52cc4efc7bd77feDouglas Gregor const LangOptions &LangOpts, const TargetInfo *Target); 245822da61b74ce14e89b3fa8774db18c833aa5748bChris Lattner ~HeaderSearch(); 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 247c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor /// \brief Retrieve the header-search options with which this header search 248c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor /// was initialized. 249c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor HeaderSearchOptions &getHeaderSearchOpts() const { return *HSOpts; } 250c042edd54face617a3b9d0b4b9d5a3ff229d0f48Douglas Gregor 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FileManager &getFileMgr() const { return FileMgr; } 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 253a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Interface for setting the file search paths. 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void SetSearchPaths(const std::vector<DirectoryLookup> &dirs, 25574a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber unsigned angledDirIdx, unsigned systemDirIdx, 25674a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber bool noCurDirSearch) { 25774a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber assert(angledDirIdx <= systemDirIdx && systemDirIdx <= dirs.size() && 25874a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber "Directory indicies are unordered"); 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SearchDirs = dirs; 26074a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber AngledDirIdx = angledDirIdx; 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SystemDirIdx = systemDirIdx; 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NoCurDirSearch = noCurDirSearch; 2639960ae8ecfa2c4278dac708a02e463f83fdf17e8Chris Lattner //LookupFileCache.clear(); 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Add an additional search path. 2671c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor void AddSearchPath(const DirectoryLookup &dir, bool isAngled) { 2681c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor unsigned idx = isAngled ? SystemDirIdx : AngledDirIdx; 2691c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor SearchDirs.insert(SearchDirs.begin() + idx, dir); 2701c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor if (!isAngled) 2711c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor AngledDirIdx++; 2721c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor SystemDirIdx++; 2731c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor } 2741c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor 275a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Set the list of system header prefixes. 276f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith void SetSystemHeaderPrefixes(ArrayRef<std::pair<std::string, bool> > P) { 277f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith SystemHeaderPrefixes.assign(P.begin(), P.end()); 278f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith } 279f122a138e39dbb29162abfa9a3d44091d8efa7afRichard Smith 280a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Checks whether the map exists or not. 2814c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman bool HasIncludeAliasMap() const { 2827247c88d1e41514a41085f83ebf03dd5220e054aDavid Blaikie return IncludeAliases.isValid(); 2834c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman } 2844c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman 285a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Map the source include name to the dest include name. 286a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// 2874c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// The Source should include the angle brackets or quotes, the dest 2884c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// should not. This allows for distinction between <> and "" headers. 2894c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman void AddIncludeAlias(StringRef Source, StringRef Dest) { 2904c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman if (!IncludeAliases) 2914c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman IncludeAliases.reset(new IncludeAliasMap); 2924c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman (*IncludeAliases)[Source] = Dest; 2934c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman } 2944c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman 2954c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// MapHeaderToIncludeAlias - Maps one header file name to a different header 2964c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// file name, for use with the include_alias pragma. Note that the source 2974c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// file name should include the angle brackets or quotes. Returns StringRef 2984c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman /// as null if the header cannot be mapped. 2994c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman StringRef MapHeaderToIncludeAlias(StringRef Source) { 3004c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman assert(IncludeAliases && "Trying to map headers when there's no map"); 3014c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman 3024c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman // Do any filename replacements before anything else 3034c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman IncludeAliasMap::const_iterator Iter = IncludeAliases->find(Source); 3044c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman if (Iter != IncludeAliases->end()) 3054c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman return Iter->second; 3064c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman return StringRef(); 3074c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman } 3084c55c54db8e676aa3e042188773d9d82d59fff91Aaron Ballman 3095e3f9223db88227d6d21679c613b139d8160186dDouglas Gregor /// \brief Set the path to the module cache. 3105e3f9223db88227d6d21679c613b139d8160186dDouglas Gregor void setModuleCachePath(StringRef CachePath) { 311fba18aa8f2cd1994dc65e8cb9f4be201c560dc0bDouglas Gregor ModuleCachePath = CachePath; 3129a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor } 3139a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor 314db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor /// \brief Retrieve the path to the module cache. 315db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor StringRef getModuleCachePath() const { return ModuleCachePath; } 3161ecf0e6e271f3046bc53264318c47eae0fb80afdAxel Naumann 3171ecf0e6e271f3046bc53264318c47eae0fb80afdAxel Naumann /// \brief Consider modules when including files from this directory. 3181ecf0e6e271f3046bc53264318c47eae0fb80afdAxel Naumann void setDirectoryHasModuleMap(const DirectoryEntry* Dir) { 3191ecf0e6e271f3046bc53264318c47eae0fb80afdAxel Naumann DirectoryHasModuleMap[Dir] = true; 3201ecf0e6e271f3046bc53264318c47eae0fb80afdAxel Naumann } 321db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor 322a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Forget everything we know about headers so far. 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ClearFileInfo() { 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FileInfo.clear(); 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3278c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor void SetExternalLookup(ExternalIdentifierLookup *EIL) { 3288c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor ExternalLookup = EIL; 3298c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor } 3308c5a760b82e73ed90b560090772db97e2ae27b09Douglas Gregor 331cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor ExternalIdentifierLookup *getExternalLookup() const { 332cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor return ExternalLookup; 333cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor } 334cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 335cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor /// \brief Set the external source of header information. 336cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor void SetExternalSource(ExternalHeaderFileInfoSource *ES) { 337cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor ExternalSource = ES; 338cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor } 339cfbf1c7536e016dc275139dd842d4a5f059a749fDouglas Gregor 340dc58aa71026cce539ca9b5c2c52cc4efc7bd77feDouglas Gregor /// \brief Set the target information for the header search, if not 341dc58aa71026cce539ca9b5c2c52cc4efc7bd77feDouglas Gregor /// already known. 342dc58aa71026cce539ca9b5c2c52cc4efc7bd77feDouglas Gregor void setTarget(const TargetInfo &Target); 343dc58aa71026cce539ca9b5c2c52cc4efc7bd77feDouglas Gregor 344198129e24b56ffcc85f66e798d52a8614e3a07a4James Dennett /// \brief Given a "foo" or \<foo> reference, look up the indicated file, 3457412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// return null on failure. 3467412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// 3477412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// \returns If successful, this returns 'UsedDir', the DirectoryLookup member 3487412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// the file was found in, or null if not applicable. 3497412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// 3507412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// \param isAngled indicates whether the file reference is a <> reference. 3517412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// 3527412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// \param CurDir If non-null, the file was found in the specified directory 353a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// search location. This is used to implement \#include_next. 3547412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// 355a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \param CurFileEnt If non-null, indicates where the \#including file is, in 3567412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// case a relative search is needed. 3577412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// 3587412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// \param SearchPath If non-null, will be set to the search path relative 3597412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// to which the file was found. If the include path is absolute, SearchPath 3607412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// will be set to an empty string. 3617412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// 3627412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// \param RelativePath If non-null, will be set to the path relative to 3637412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// SearchPath at which the file was found. This only differs from the 3647412494982c8b50c90961302c3a718633b2c3ab7Manuel Klimek /// Filename for framework includes. 365fba18aa8f2cd1994dc65e8cb9f4be201c560dc0bDouglas Gregor /// 366fba18aa8f2cd1994dc65e8cb9f4be201c560dc0bDouglas Gregor /// \param SuggestedModule If non-null, and the file found is semantically 367c69c42e939e6bdaa56d162cc36da4f6b6c53e8dbDouglas Gregor /// part of a known module, this will be set to the module that should 368c69c42e939e6bdaa56d162cc36da4f6b6c53e8dbDouglas Gregor /// be imported instead of preprocessing/parsing the file found. 369686775deca8b8685eb90801495880e3abdd844c2Chris Lattner const FileEntry *LookupFile(StringRef Filename, bool isAngled, 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DirectoryLookup *FromDir, 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DirectoryLookup *&CurDir, 372b5142bb7af5c70fffd09f05172a1379a35a9c29aChandler Carruth const FileEntry *CurFileEnt, 373686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<char> *SearchPath, 374fba18aa8f2cd1994dc65e8cb9f4be201c560dc0bDouglas Gregor SmallVectorImpl<char> *RelativePath, 375bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl ModuleMap::KnownHeader *SuggestedModule, 3761c2e9332fa69727425a3a2b912e36e2ab62083f8Douglas Gregor bool SkipCache = false); 3771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 378a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Look up a subframework for the specified \#include file. 379a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// 380a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// For example, if \#include'ing <HIToolbox/HIToolbox.h> from 381a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// within ".../Carbon.framework/Headers/Carbon.h", check to see if 382a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// HIToolbox is a subframework within Carbon.framework. If so, return 383a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// the FileEntry for the designated file, otherwise return null. 384b5142bb7af5c70fffd09f05172a1379a35a9c29aChandler Carruth const FileEntry *LookupSubframeworkHeader( 385686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Filename, 386b5142bb7af5c70fffd09f05172a1379a35a9c29aChandler Carruth const FileEntry *RelativeFileEnt, 387686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<char> *SearchPath, 3881b58c74af272a1d8228b8161c93a8a018456098eDouglas Gregor SmallVectorImpl<char> *RelativePath, 389bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl ModuleMap::KnownHeader *SuggestedModule); 3901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 391a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Look up the specified framework name in our framework cache. 392a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \returns The DirectoryEntry it is in if we know, null otherwise. 3939ee35f9f35452dec05c81fd1bbdd2f700872ea7fDaniel Dunbar FrameworkCacheEntry &LookupFrameworkCache(StringRef FWName) { 394a139481e62fdb209d9d87a54a5733f989d2e8d51Chris Lattner return FrameworkMap.GetOrCreateValue(FWName).getValue(); 395afded5bbb85607023c710c3d6a96c372feb84d7fChris Lattner } 3961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 397a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Mark the specified file as a target of of a \#include, 398a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \#include_next, or \#import directive. 399a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// 400a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \return false if \#including the file will have no effect or true 401a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// if we should include it. 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool ShouldEnterIncludeFile(const FileEntry *File, bool isImport); 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 405a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Return whether the specified file is a normal header, 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a system header, or a C++ friendly system header. 4079d72851fec9e9c62570a027d42701562bbf29751Chris Lattner SrcMgr::CharacteristicKind getFileDirFlavor(const FileEntry *File) { 4089d72851fec9e9c62570a027d42701562bbf29751Chris Lattner return (SrcMgr::CharacteristicKind)getFileInfo(File).DirInfo; 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 411a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Mark the specified file as a "once only" file, e.g. due to 412a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \#pragma once. 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void MarkFileIncludeOnce(const FileEntry *File) { 414dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor HeaderFileInfo &FI = getFileInfo(File); 415dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor FI.isImport = true; 416dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor FI.isPragmaOnce = true; 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 419a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Mark the specified file as a system header, e.g. due to 420a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \#pragma GCC system_header. 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void MarkFileSystemHeader(const FileEntry *File) { 4220b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner getFileInfo(File).DirInfo = SrcMgr::C_System; 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42555ea75bf61a5d76f6453513d937944ce68181c6aArgyrios Kyrtzidis /// \brief Mark the specified file as part of a module. 426bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl void MarkFileModuleHeader(const FileEntry *File, 427bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl ModuleMap::ModuleHeaderRole Role, 428bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl bool IsCompiledModuleHeader); 42955ea75bf61a5d76f6453513d937944ce68181c6aArgyrios Kyrtzidis 430a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Increment the count for the number of times the specified 431a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// FileEntry has been entered. 43225bfcb927d9169ea675ce6e98d8992efceeb0e42Chris Lattner void IncrementIncludeCount(const FileEntry *File) { 43325bfcb927d9169ea675ce6e98d8992efceeb0e42Chris Lattner ++getFileInfo(File).NumIncludes; 43425bfcb927d9169ea675ce6e98d8992efceeb0e42Chris Lattner } 4351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 436a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Mark the specified file as having a controlling macro. 437a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// 438a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// This is used by the multiple-include optimization to eliminate 439809d1be9820039b4cf6efa48246a0d70ffa13394James Dennett /// no-op \#includes. 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void SetFileControllingMacro(const FileEntry *File, 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const IdentifierInfo *ControllingMacro) { 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer getFileInfo(File).ControllingMacro = ControllingMacro; 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 445671538e8a51eab5bd65a1f9f327ba7f44f84e486Richard Trieu /// \brief Return true if this is the first time encountering this header. 446671538e8a51eab5bd65a1f9f327ba7f44f84e486Richard Trieu bool FirstTimeLexingFile(const FileEntry *File) { 447671538e8a51eab5bd65a1f9f327ba7f44f84e486Richard Trieu return getFileInfo(File).NumIncludes == 1; 448671538e8a51eab5bd65a1f9f327ba7f44f84e486Richard Trieu } 449671538e8a51eab5bd65a1f9f327ba7f44f84e486Richard Trieu 450dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor /// \brief Determine whether this file is intended to be safe from 451809d1be9820039b4cf6efa48246a0d70ffa13394James Dennett /// multiple inclusions, e.g., it has \#pragma once or a controlling 452dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor /// macro. 453dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor /// 454809d1be9820039b4cf6efa48246a0d70ffa13394James Dennett /// This routine does not consider the effect of \#import 455dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor bool isFileMultipleIncludeGuarded(const FileEntry *File); 456dd3e5549e3c11e217078938aacf72f042eea5343Douglas Gregor 457822da61b74ce14e89b3fa8774db18c833aa5748bChris Lattner /// CreateHeaderMap - This method returns a HeaderMap for the specified 458bed28ac1d1463adca3ecf24fca5c30646fa9dbb2Sylvestre Ledru /// FileEntry, uniquing them through the 'HeaderMaps' datastructure. 4591bfd4a6313ea8ebf710c46c10111732cc65d51f6Chris Lattner const HeaderMap *CreateHeaderMap(const FileEntry *FE); 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 461e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \brief Retrieve the name of the module file that should be used to 462e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// load the given module. 4639a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor /// 464e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \param Module The module whose module file name will be returned. 465a4d36a6dd00c1495cfe3b64f949d70ba9f778391Douglas Gregor /// 466e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \returns The name of the module file that corresponds to this module, 467e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// or an empty string if this module does not correspond to any module file. 468e434ec71fccfe078906403affd641f709702d598Douglas Gregor std::string getModuleFileName(Module *Module); 469e434ec71fccfe078906403affd641f709702d598Douglas Gregor 470e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \brief Retrieve the name of the module file that should be used to 471e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// load a module with the given name. 4726e975c4517958bcc11c834336d340797356058dbDouglas Gregor /// 473efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett /// \param ModuleName The module whose module file name will be returned. 474e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// 475e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \returns The name of the module file that corresponds to this module, 476e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// or an empty string if this module does not correspond to any module file. 477e434ec71fccfe078906403affd641f709702d598Douglas Gregor std::string getModuleFileName(StringRef ModuleName); 478e434ec71fccfe078906403affd641f709702d598Douglas Gregor 479e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \brief Lookup a module Search for a module with the given name. 480e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// 481e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \param ModuleName The name of the module we're looking for. 482e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// 483e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \param AllowSearch Whether we are allowed to search in the various 484e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// search directories to produce a module definition. If not, this lookup 485e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// will only return an already-known module. 486e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// 487e434ec71fccfe078906403affd641f709702d598Douglas Gregor /// \returns The module with the given name. 488e434ec71fccfe078906403affd641f709702d598Douglas Gregor Module *lookupModule(StringRef ModuleName, bool AllowSearch = true); 4899a6da6930644b4f2dbe4885b0eb4fc1274ff56a4Douglas Gregor 490afded5bbb85607023c710c3d6a96c372feb84d7fChris Lattner void IncrementFrameworkLookupCount() { ++NumFrameworkLookups; } 49183d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff 492a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// \brief Determine whether there is a module map that may map the header 493a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// with the given file name to a (sub)module. 494a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// 495a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// \param Filename The name of the file. 496a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// 497a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// \param Root The "root" directory, at which we should stop looking for 498a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// module maps. 4998f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor /// 5008f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor /// \param IsSystem Whether the directories we're looking at are system 5018f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor /// header directories. 5028f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor bool hasModuleMap(StringRef Filename, const DirectoryEntry *Root, 5038f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor bool IsSystem); 504a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor 505a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor /// \brief Retrieve the module that corresponds to the given file, if any. 50651f564f80d9f71e175635b452ffeeeff899e9bf1Douglas Gregor /// 50751f564f80d9f71e175635b452ffeeeff899e9bf1Douglas Gregor /// \param File The header that we wish to map to a module. 508bc3f628815b3841dc99109e7f67f9afa7793bc94Lawrence Crowl ModuleMap::KnownHeader findModuleForHeader(const FileEntry *File) const; 509a30cfe5026b12c28b7b575b48176e0a3543ce939Douglas Gregor 510db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor /// \brief Read the contents of the given module map file. 511db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor /// 512db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor /// \param File The module map file. 5138f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor /// \param IsSystem Whether this file is in a system header directory. 514db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor /// 515db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor /// \returns true if an error occurred, false otherwise. 5168f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor bool loadModuleMapFile(const FileEntry *File, bool IsSystem); 5172821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor 518c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor /// \brief Collect the set of all known, top-level modules. 519c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor /// 520c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor /// \param Modules Will be filled with the set of known, top-level modules. 521cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko void collectAllModules(SmallVectorImpl<Module *> &Modules); 52230a16f1383b56cb71be251999a577b2e37db2ce0Douglas Gregor 52330a16f1383b56cb71be251999a577b2e37db2ce0Douglas Gregor /// \brief Load all known, top-level system modules. 52430a16f1383b56cb71be251999a577b2e37db2ce0Douglas Gregor void loadTopLevelSystemModules(); 52530a16f1383b56cb71be251999a577b2e37db2ce0Douglas Gregor 526e434ec71fccfe078906403affd641f709702d598Douglas Gregorprivate: 5272821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// \brief Retrieve a module with the given name, which may be part of the 5282821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// given framework. 5292821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// 5302821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// \param Name The name of the module to retrieve. 5312821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// 5322821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// \param Dir The framework directory (e.g., ModuleName.framework). 5332821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// 534a1f1fad8b60e1cb9d21a40a37f2e03150bcbeb6fDouglas Gregor /// \param IsSystem Whether the framework directory is part of the system 535a1f1fad8b60e1cb9d21a40a37f2e03150bcbeb6fDouglas Gregor /// frameworks. 536a1f1fad8b60e1cb9d21a40a37f2e03150bcbeb6fDouglas Gregor /// 5372821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// \returns The module, if found; otherwise, null. 538e434ec71fccfe078906403affd641f709702d598Douglas Gregor Module *loadFrameworkModule(StringRef Name, 539e434ec71fccfe078906403affd641f709702d598Douglas Gregor const DirectoryEntry *Dir, 540e434ec71fccfe078906403affd641f709702d598Douglas Gregor bool IsSystem); 541cdf2808c4e735a717599751dcd2b434f239e1c68Douglas Gregor 542cdf2808c4e735a717599751dcd2b434f239e1c68Douglas Gregor /// \brief Load all of the module maps within the immediate subdirectories 543cdf2808c4e735a717599751dcd2b434f239e1c68Douglas Gregor /// of the given search directory. 544cdf2808c4e735a717599751dcd2b434f239e1c68Douglas Gregor void loadSubdirectoryModuleMaps(DirectoryLookup &SearchDir); 545cdf2808c4e735a717599751dcd2b434f239e1c68Douglas Gregor 546e434ec71fccfe078906403affd641f709702d598Douglas Gregorpublic: 5472821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor /// \brief Retrieve the module map. 5482821c7f8870629b56b9c41e1c50c7a091edd544dDouglas Gregor ModuleMap &getModuleMap() { return ModMap; } 549db1cde7dc7bb3aaf48118bd9605192ab94a93635Douglas Gregor 55012fab31aa5868b1a6b52246b5a87daa48a338fe2Douglas Gregor unsigned header_file_size() const { return FileInfo.size(); } 55183d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff 552a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Return the HeaderFileInfo structure for the specified FileEntry. 553590ad93bf59f4e5f6adcba0d78efc3a58cac15ceArgyrios Kyrtzidis const HeaderFileInfo &getFileInfo(const FileEntry *FE) const { 554590ad93bf59f4e5f6adcba0d78efc3a58cac15ceArgyrios Kyrtzidis return const_cast<HeaderSearch*>(this)->getFileInfo(FE); 555590ad93bf59f4e5f6adcba0d78efc3a58cac15ceArgyrios Kyrtzidis } 556590ad93bf59f4e5f6adcba0d78efc3a58cac15ceArgyrios Kyrtzidis 557ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor // Used by external tools 558ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor typedef std::vector<DirectoryLookup>::const_iterator search_dir_iterator; 559ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor search_dir_iterator search_dir_begin() const { return SearchDirs.begin(); } 560ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor search_dir_iterator search_dir_end() const { return SearchDirs.end(); } 561ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor unsigned search_dir_size() const { return SearchDirs.size(); } 562ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor 56374a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber search_dir_iterator quoted_dir_begin() const { 56474a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber return SearchDirs.begin(); 56574a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber } 56674a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber search_dir_iterator quoted_dir_end() const { 56774a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber return SearchDirs.begin() + AngledDirIdx; 56874a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber } 56974a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber 57074a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber search_dir_iterator angled_dir_begin() const { 57174a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber return SearchDirs.begin() + AngledDirIdx; 57274a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber } 57374a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber search_dir_iterator angled_dir_end() const { 57474a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber return SearchDirs.begin() + SystemDirIdx; 57574a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber } 57674a5fd8bcc68b540b58f6fcd2d80e6e926966e71Nico Weber 577ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor search_dir_iterator system_dir_begin() const { 578ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor return SearchDirs.begin() + SystemDirIdx; 579ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor } 580ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor search_dir_iterator system_dir_end() const { return SearchDirs.end(); } 581ec356c320a81062b1843f0dbe7fedf29ed947eceDouglas Gregor 58265e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor /// \brief Retrieve a uniqued framework name. 58365e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor StringRef getUniqueFrameworkName(StringRef Framework); 58465e02fa80e1c185f18e5f81cefc30d75383a7301Douglas Gregor 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void PrintStats(); 586d1194fbbf65374bfa3578eb40a547e4f97b497d1Ted Kremenek 587d1194fbbf65374bfa3578eb40a547e4f97b497d1Ted Kremenek size_t getTotalMemory() const; 588d1194fbbf65374bfa3578eb40a547e4f97b497d1Ted Kremenek 589cb381eac84e5a14a8c7e7654eadbe1d3d54d795cChandler Carruth static std::string NormalizeDashIncludePath(StringRef File, 590cb381eac84e5a14a8c7e7654eadbe1d3d54d795cChandler Carruth FileManager &FileMgr); 591cb381eac84e5a14a8c7e7654eadbe1d3d54d795cChandler Carruth 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 59326697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \brief Describes what happened when we tried to load a module map file. 59426697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor enum LoadModuleMapResult { 59526697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \brief The module map file had already been loaded. 59626697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor LMM_AlreadyLoaded, 59726697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \brief The module map file was loaded by this invocation. 59826697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor LMM_NewlyLoaded, 59926697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \brief There is was directory with the given name. 60026697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor LMM_NoDirectory, 60126697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \brief There was either no module map file or the module map file was 60226697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// invalid. 60326697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor LMM_InvalidModuleMap 60426697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor }; 60526697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor 606cf70d7873fe3098bdac72e7628f4e832d14d5143Douglas Gregor /// \brief Try to load the module map file in the given directory. 607cf70d7873fe3098bdac72e7628f4e832d14d5143Douglas Gregor /// 60826697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \param DirName The name of the directory where we will look for a module 60926697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// map file. 6108f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor /// \param IsSystem Whether this is a system header directory. 61126697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// 61226697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \returns The result of attempting to load the module map file from the 61326697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// named directory. 6148f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor LoadModuleMapResult loadModuleMapFile(StringRef DirName, bool IsSystem); 615cf70d7873fe3098bdac72e7628f4e832d14d5143Douglas Gregor 616cf70d7873fe3098bdac72e7628f4e832d14d5143Douglas Gregor /// \brief Try to load the module map file in the given directory. 617cf70d7873fe3098bdac72e7628f4e832d14d5143Douglas Gregor /// 61826697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \param Dir The directory where we will look for a module map file. 6198f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor /// \param IsSystem Whether this is a system header directory. 62026697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// 62126697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// \returns The result of attempting to load the module map file from the 62226697979fb0a4e2b720a0c8d062047edca92bc92Douglas Gregor /// named directory. 6238f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor LoadModuleMapResult loadModuleMapFile(const DirectoryEntry *Dir, 6248f5d7d1d1f990f174c7f2682271a83acf64dd93dDouglas Gregor bool IsSystem); 6251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 626a24bd5d9ad79be50cec0e25364d8267e7623c33fJames Dennett /// \brief Return the HeaderFileInfo structure for the specified FileEntry. 62783d63c78810556d26b62ac4cbae2eda6cdd2570cSteve Naroff HeaderFileInfo &getFileInfo(const FileEntry *FE); 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 633