SourceManager.h revision dcb1d68f6ffa183f3919aee6b554aec3793bf13e
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- SourceManager.h - Track and cache source files ---------*- 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 SourceManager interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_SOURCEMANAGER_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_SOURCEMANAGER_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/SourceLocation.h" 180d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner#include "llvm/Support/Allocator.h" 199f8eb2032030482b1d3de86e9bee725d93564302Chandler Carruth#include "llvm/System/DataTypes.h" 20c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor#include "llvm/ADT/PointerIntPair.h" 21aea67dbd653a2dd6dd5cc2159279e81e855b2482Douglas Gregor#include "llvm/ADT/PointerUnion.h" 220d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner#include "llvm/ADT/DenseMap.h" 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 249dc62f044a6ba21f503bd56607d94b32704e7945Chris Lattner#include <cassert> 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemoryBuffer; 28aea67dbd653a2dd6dd5cc2159279e81e855b2482Douglas Gregorclass StringRef; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33aea67dbd653a2dd6dd5cc2159279e81e855b2482Douglas Gregorclass Diagnostic; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass SourceManager; 35099b4747042352f69184481a48508b599a8d3f73Ted Kremenekclass FileManager; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FileEntry; 375b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattnerclass LineTableInfo; 38aea67dbd653a2dd6dd5cc2159279e81e855b2482Douglas Gregor 390b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner/// SrcMgr - Public enums and private classes that are part of the 400b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner/// SourceManager implementation. 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace SrcMgr { 439d72851fec9e9c62570a027d42701562bbf29751Chris Lattner /// CharacteristicKind - This is used to represent whether a file or directory 440b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner /// holds normal user code, system code, or system code which is implicitly 450b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner /// 'extern "C"' in C++ mode. Entire directories can be tagged with this 460b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner /// (this is maintained by DirectoryLookup and friends) as can specific 470b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner /// FileIDInfos when a #pragma system_header is seen or various other cases. 480b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner /// 499d72851fec9e9c62570a027d42701562bbf29751Chris Lattner enum CharacteristicKind { 500b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner C_User, C_System, C_ExternCSystem 510b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner }; 521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5378d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// ContentCache - Once instance of this struct is kept for every file 5406a062dc784c609b75dca15fd97f468d0d846596Chris Lattner /// loaded or used. This object owns the MemoryBuffer object. 55c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek class ContentCache { 56c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// Buffer - The actual buffer containing the characters from the input 57c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// file. This is owned by the ContentCache object. 58c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor /// The bit indicates whether the buffer is invalid. 59c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor mutable llvm::PointerIntPair<const llvm::MemoryBuffer *, 1, bool> Buffer; 60c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek 61c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek public: 6278d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// Reference to the file entry. This reference does not own 6378d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// the FileEntry object. It is possible for this to be NULL if 6478d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// the ContentCache encapsulates an imaginary text buffer. 6505816591ec488a933dfecc9ff9f3cbf3c32767c2Chris Lattner const FileEntry *Entry; 661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 670d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner /// SourceLineCache - A bump pointer allocated array of offsets for each 680d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner /// source line. This is lazily computed. This is owned by the 690d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner /// SourceManager BumpPointerAllocator object. 7005816591ec488a933dfecc9ff9f3cbf3c32767c2Chris Lattner unsigned *SourceLineCache; 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72b6427f821de8cce1566fb6e755143ea0918d5543Ted Kremenek /// NumLines - The number of lines in this ContentCache. This is only valid 73b6427f821de8cce1566fb6e755143ea0918d5543Ted Kremenek /// if SourceLineCache is non-null. 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumLines; 7510b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis 7636c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor /// getBuffer - Returns the memory buffer for the associated content. 7736c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor /// 7836c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor /// \param Diag Object through which diagnostics will be emitted it the 7936c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor /// buffer cannot be retrieved. 8036c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor /// 81e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner /// \param Loc If specified, is the location that invalid file diagnostics 82e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner /// will be emitted at. 83e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner /// 8436c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor /// \param Invalid If non-NULL, will be set \c true if an error occurred. 85e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner const llvm::MemoryBuffer *getBuffer(Diagnostic &Diag, 86e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner const SourceManager &SM, 87e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner SourceLocation Loc = SourceLocation(), 8836c35ba0aca641e60e5dbee8efbc620c08b9bd61Douglas Gregor bool *Invalid = 0) const; 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// getSize - Returns the size of the content encapsulated by this 91c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// ContentCache. This can be the size of the source file or the size of an 92c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// arbitrary scratch buffer. If the ContentCache encapsulates a source 93c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// file this size is retrieved from the file's FileEntry. 94c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek unsigned getSize() const; 951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// getSizeBytesMapped - Returns the number of bytes actually mapped for 97c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// this ContentCache. This can be 0 if the MemBuffer was not actually 98c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek /// instantiated. 99c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek unsigned getSizeBytesMapped() const; 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10105816591ec488a933dfecc9ff9f3cbf3c32767c2Chris Lattner void setBuffer(const llvm::MemoryBuffer *B) { 102c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor assert(!Buffer.getPointer() && "MemoryBuffer already set."); 103c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor Buffer.setPointer(B); 104c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor Buffer.setInt(false); 105c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek } 1061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1072968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// \brief Replace the existing buffer (which will be deleted) 1082968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// with the given buffer. 1092968442603b029949246467253eeac8139a5b6d8Douglas Gregor void replaceBuffer(const llvm::MemoryBuffer *B); 1102968442603b029949246467253eeac8139a5b6d8Douglas Gregor 1110d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner ContentCache(const FileEntry *Ent = 0) 112c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor : Buffer(0, false), Entry(Ent), SourceLineCache(0), NumLines(0) {} 11378d85f53b093867bbb0123f016956178eea7343eTed Kremenek 11478d85f53b093867bbb0123f016956178eea7343eTed Kremenek ~ContentCache(); 1151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1160d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek /// The copy ctor does not allow copies where source object has either 1170d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek /// a non-NULL Buffer or SourceLineCache. Ownership of allocated memory 1180d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek /// is not transfered, so this is a logical error. 119c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor ContentCache(const ContentCache &RHS) 120c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor : Buffer(0, false), SourceLineCache(0) 121c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor { 1220d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek Entry = RHS.Entry; 1230d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek 124c815108d08b0417c6f1104e7df70dc5278839406Douglas Gregor assert (RHS.Buffer.getPointer() == 0 && RHS.SourceLineCache == 0 1250d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek && "Passed ContentCache object cannot own a buffer."); 1261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NumLines = RHS.NumLines; 1280d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek } 1291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1300d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek private: 1310d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek // Disable assignments. 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ContentCache &operator=(const ContentCache& RHS); 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump }; 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 135de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// FileInfo - Information about a FileID, basically just the logical file 136de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// that it represents and include stack information. 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 138de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// Each FileInfo has include stack information, indicating where it came 139de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// from. This information encodes the #include chain that a token was 140de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// instantiated from. The main include file has an invalid IncludeLoc. 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 142de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// FileInfos contain a "ContentCache *", with the contents of the file. 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 144de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner class FileInfo { 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IncludeLoc - The location of the #include that brought in this file. 146de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// This is an invalid SLOC for the main file (top of the #include chain). 147de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned IncludeLoc; // Really a SourceLocation 1481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1496e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner /// Data - This contains the ContentCache* and the bits indicating the 1506e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner /// characteristic of the file and whether it has #line info, all bitmangled 1516e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner /// together. 1526e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner uintptr_t Data; 15378d85f53b093867bbb0123f016956178eea7343eTed Kremenek public: 154de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// get - Return a FileInfo object. 155de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner static FileInfo get(SourceLocation IL, const ContentCache *Con, 156de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner CharacteristicKind FileCharacter) { 157de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileInfo X; 158de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner X.IncludeLoc = IL.getRawEncoding(); 1596e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner X.Data = (uintptr_t)Con; 16000282d6e1194655a2e89f940bd6fa8484b52e666Chris Lattner assert((X.Data & 7) == 0 &&"ContentCache pointer insufficiently aligned"); 1616e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner assert((unsigned)FileCharacter < 4 && "invalid file character"); 1626e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner X.Data |= (unsigned)FileCharacter; 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return X; 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 166de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SourceLocation getIncludeLoc() const { 167de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return SourceLocation::getFromRawEncoding(IncludeLoc); 168de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 1696e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner const ContentCache* getContentCache() const { 17000282d6e1194655a2e89f940bd6fa8484b52e666Chris Lattner return reinterpret_cast<const ContentCache*>(Data & ~7UL); 1716e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner } 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1730b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner /// getCharacteristic - Return whether this is a system header or not. 1741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CharacteristicKind getFileCharacteristic() const { 1756e1aff2f586025f2d385ee49239f626b0fc63fd7Chris Lattner return (CharacteristicKind)(Data & 3); 1760b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner } 177ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner 178ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner /// hasLineDirectives - Return true if this FileID has #line directives in 179ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner /// it. 180ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner bool hasLineDirectives() const { return (Data & 4) != 0; } 1811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 182ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner /// setHasLineDirectives - Set the flag that indicates that this FileID has 183ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner /// line table entries associated with it. 184ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner void setHasLineDirectives() { 185ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner Data |= 4; 186ac50e3427cb9eb3dc9f13f29a78f00ef3122433dChris Lattner } 1879dc1f530c086d2c16f8cba758b0f59a5bf41323aChris Lattner }; 1881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// InstantiationInfo - Each InstantiationInfo encodes the Instantiation 190de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// location - where the token was ultimately instantiated, and the 191de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// SpellingLoc - where the actual character data for the token came from. 192de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner class InstantiationInfo { 193e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner // Really these are all SourceLocations. 1941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 195e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// SpellingLoc - Where the spelling for the token can be found. 196e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner unsigned SpellingLoc; 1971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// InstantiationLocStart/InstantiationLocEnd - In a macro expansion, these 19914f79002e58556798e86168c63e48d533287eda5Douglas Gregor /// indicate the start and end of the instantiation. In object-like macros, 200e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// these will be the same. In a function-like macro instantiation, the 201e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// start will be the identifier and the end will be the ')'. 202e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner unsigned InstantiationLocStart, InstantiationLocEnd; 2039dc1f530c086d2c16f8cba758b0f59a5bf41323aChris Lattner public: 204de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SourceLocation getSpellingLoc() const { 205de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return SourceLocation::getFromRawEncoding(SpellingLoc); 206de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 207e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner SourceLocation getInstantiationLocStart() const { 208e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner return SourceLocation::getFromRawEncoding(InstantiationLocStart); 209e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner } 210e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner SourceLocation getInstantiationLocEnd() const { 211e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner return SourceLocation::getFromRawEncoding(InstantiationLocEnd); 212e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner } 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner std::pair<SourceLocation,SourceLocation> getInstantiationLocRange() const { 215e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner return std::make_pair(getInstantiationLocStart(), 216e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner getInstantiationLocEnd()); 217e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner } 2181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 219e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// get - Return a InstantiationInfo for an expansion. IL specifies 220df7c17a8d02fe09a3466786bae3e40fc3252687aChris Lattner /// the instantiation location (where the macro is expanded), and SL 221df7c17a8d02fe09a3466786bae3e40fc3252687aChris Lattner /// specifies the spelling location (where the characters from the token 222e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// come from). IL and PL can both refer to normal File SLocs or 223e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// instantiation locations. 224e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner static InstantiationInfo get(SourceLocation ILStart, SourceLocation ILEnd, 225e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner SourceLocation SL) { 226de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner InstantiationInfo X; 227de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner X.SpellingLoc = SL.getRawEncoding(); 228e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner X.InstantiationLocStart = ILStart.getRawEncoding(); 229e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner X.InstantiationLocEnd = ILEnd.getRawEncoding(); 2309dc1f530c086d2c16f8cba758b0f59a5bf41323aChris Lattner return X; 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 232de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner }; 2331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 234de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// SLocEntry - This is a discriminated union of FileInfo and 235de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// InstantiationInfo. SourceManager keeps an array of these objects, and 236de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// they are uniquely identified by the FileID datatype. 237de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner class SLocEntry { 238de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned Offset; // low bit is set for instantiation info. 239de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner union { 240de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileInfo File; 241de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner InstantiationInfo Instantiation; 242de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner }; 243de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner public: 244de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned getOffset() const { return Offset >> 1; } 2451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 246de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner bool isInstantiation() const { return Offset & 1; } 247de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner bool isFile() const { return !isInstantiation(); } 2481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 249de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const FileInfo &getFile() const { 250de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner assert(isFile() && "Not a file SLocEntry!"); 251de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return File; 252de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 253de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner 254de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const InstantiationInfo &getInstantiation() const { 255de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner assert(isInstantiation() && "Not an instantiation SLocEntry!"); 256de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return Instantiation; 257de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 2581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 259de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner static SLocEntry get(unsigned Offset, const FileInfo &FI) { 260de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SLocEntry E; 261de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner E.Offset = Offset << 1; 262de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner E.File = FI; 263de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return E; 264de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 265de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner 266de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner static SLocEntry get(unsigned Offset, const InstantiationInfo &II) { 267de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SLocEntry E; 268de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner E.Offset = (Offset << 1) | 1; 269de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner E.Instantiation = II; 270de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return E; 271de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end SrcMgr namespace. 2747f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 2757f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor/// \brief External source of source location entries. 2767f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregorclass ExternalSLocEntrySource { 2777f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregorpublic: 2787f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor virtual ~ExternalSLocEntrySource(); 2797f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 2807f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// \brief Read the source location entry with index ID. 2817f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor virtual void ReadSLocEntry(unsigned ID) = 0; 2827f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor}; 283dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 284dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 285dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner/// IsBeforeInTranslationUnitCache - This class holds the cache used by 286dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner/// isBeforeInTranslationUnit. The cache structure is complex enough to be 287dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner/// worth breaking out of SourceManager. 288dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattnerclass IsBeforeInTranslationUnitCache { 289dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// L/R QueryFID - These are the FID's of the cached query. If these match up 290dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// with a subsequent query, the result can be reused. 291dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner FileID LQueryFID, RQueryFID; 292dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 293dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// CommonFID - This is the file found in common between the two #include 294dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// traces. It is the nearest common ancestor of the #include tree. 295dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner FileID CommonFID; 296dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 297dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// L/R CommonOffset - This is the offset of the previous query in CommonFID. 298dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// Usually, this represents the location of the #include for QueryFID, but if 299dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// LQueryFID is a parent of RQueryFID (or vise versa) then these can be a 300dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// random token in the parent. 301dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner unsigned LCommonOffset, RCommonOffset; 302dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattnerpublic: 303dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 304dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// isCacheValid - Return true if the currently cached values match up with 305dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// the specified LHS/RHS query. If not, we can't use the cache. 306dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner bool isCacheValid(FileID LHS, FileID RHS) const { 307dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner return LQueryFID == LHS && RQueryFID == RHS; 308dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner } 309dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 310dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// getCachedResult - If the cache is valid, compute the result given the 311dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner /// specified offsets in the LHS/RHS FID's. 312dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner bool getCachedResult(unsigned LOffset, unsigned ROffset) const { 313dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner // If one of the query files is the common file, use the offset. Otherwise, 314dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner // use the #include loc in the common file. 315dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner if (LQueryFID != CommonFID) LOffset = LCommonOffset; 316dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner if (RQueryFID != CommonFID) ROffset = RCommonOffset; 317dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner return LOffset < ROffset; 318dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner } 319dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 320dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner // Set up a new query. 321dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner void setQueryFIDs(FileID LHS, FileID RHS) { 322dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner LQueryFID = LHS; 323dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner RQueryFID = RHS; 324dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner } 325dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 326dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner void setCommonLoc(FileID commonFID, unsigned lCommonOffset, 327dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner unsigned rCommonOffset) { 328dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner CommonFID = commonFID; 329dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner LCommonOffset = lCommonOffset; 330dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner RCommonOffset = rCommonOffset; 331dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner } 332dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner 333dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner}; 3347f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SourceManager - This file handles loading and caching of source files into 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// memory. This object owns the MemoryBuffer objects for all of the loaded 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// files and assigns unique FileID's for each unique #include chain. 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// The SourceManager can be queried for information about SourceLocation 340f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner/// objects, turning them into either spelling or instantiation locations. 341f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner/// Spelling locations represent where the bytes corresponding to a token came 342f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner/// from and instantiation locations represent where the location is in the 343f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner/// user's view. In the case of a macro expansion, for example, the spelling 344f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner/// location indicates where the expanded token came from and the instantiation 345f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner/// location specifies where it was expanded. 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass SourceManager { 347f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor /// \brief Diagnostic object. 348f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor Diagnostic &Diag; 349f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor 3500d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner mutable llvm::BumpPtrAllocator ContentCacheAlloc; 3511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// FileInfos - Memoized information about all of the files tracked by this 3530d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek /// SourceManager. This set allows us to merge ContentCache entries based 3540d892d8bfddd4916cc4f3467e1184a623d0716daTed Kremenek /// on their FileEntry*. All ContentCache objects will thus have unique, 3551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// non-null, FileEntry pointers. 3560d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner llvm::DenseMap<const FileEntry*, SrcMgr::ContentCache*> FileInfos; 3571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// MemBufferInfos - Information about various memory buffers that we have 3590d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner /// read in. All FileEntry* within the stored ContentCache objects are NULL, 3600d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner /// as they do not refer to a file. 3610d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner std::vector<SrcMgr::ContentCache*> MemBufferInfos; 3621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 363de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// SLocEntryTable - This is an array of SLocEntry's that we have created. 364de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// FileID is an index into this vector. This array is sorted by the offset. 365de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner std::vector<SrcMgr::SLocEntry> SLocEntryTable; 366de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// NextOffset - This is the next available offset that a new SLocEntry can 367de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// start at. It is SLocEntryTable.back().getOffset()+size of back() entry. 368de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned NextOffset; 3697f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 3707f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// \brief If source location entries are being lazily loaded from 3717f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// an external source, this vector indicates whether the Ith source 3727f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// location entry has already been loaded from the external storage. 3737f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor std::vector<bool> SLocEntryLoaded; 3747f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 3757f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// \brief An external source for source location entries. 3767f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor ExternalSLocEntrySource *ExternalSLocEntries; 3777f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 378de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// LastFileIDLookup - This is a one-entry cache to speed up getFileID. 379de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// LastFileIDLookup records the last FileID looked up or created, because it 380de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// is very common to look up many tokens from the same file. 381de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner mutable FileID LastFileIDLookup; 3821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3835b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner /// LineTable - This holds information for #line directives. It is referenced 3845b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner /// by indices from SLocEntryTable. 3855b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner LineTableInfo *LineTable; 3861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3875e36a7a89da5d69ece23fc8228624a053f75c645Chris Lattner /// LastLineNo - These ivars serve as a cache used in the getLineNumber 3885e36a7a89da5d69ece23fc8228624a053f75c645Chris Lattner /// method which is used to speedup getLineNumber calls to nearby locations. 3892b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner mutable FileID LastLineNoFileIDQuery; 390f812a45dd93634c9300ed5533bd26b56374714a1Chris Lattner mutable SrcMgr::ContentCache *LastLineNoContentCache; 391f812a45dd93634c9300ed5533bd26b56374714a1Chris Lattner mutable unsigned LastLineNoFilePos; 392f812a45dd93634c9300ed5533bd26b56374714a1Chris Lattner mutable unsigned LastLineNoResult; 3931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39476edd0e4ae0592a7225d50d0bad6732ac64dca2aTed Kremenek /// MainFileID - The file ID for the main source file of the translation unit. 3952b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner FileID MainFileID; 39649c1f4aa2a6c360d25d605004ec3c4affd62db77Steve Naroff 397de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // Statistics for -print-stats. 398de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner mutable unsigned NumLinearScans, NumBinaryProbes; 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4002aa03d588bd2d3c73deb662880c2244bf2e384b9Argyrios Kyrtzidis // Cache results for the isBeforeInTranslationUnit method. 401dcb1d68f6ffa183f3919aee6b554aec3793bf13eChris Lattner mutable IsBeforeInTranslationUnitCache IsBeforeInTUCache; 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40349c1f4aa2a6c360d25d605004ec3c4affd62db77Steve Naroff // SourceManager doesn't support copy construction. 40449c1f4aa2a6c360d25d605004ec3c4affd62db77Steve Naroff explicit SourceManager(const SourceManager&); 4051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void operator=(const SourceManager&); 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 407f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor SourceManager(Diagnostic &Diag) 408f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor : Diag(Diag), ExternalSLocEntries(0), LineTable(0), NumLinearScans(0), 4092968442603b029949246467253eeac8139a5b6d8Douglas Gregor NumBinaryProbes(0) { 410de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner clearIDTables(); 411de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 4125b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner ~SourceManager(); 4131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4145b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner void clearIDTables(); 4151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41606a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 41706a062dc784c609b75dca15fd97f468d0d846596Chris Lattner // MainFileID creation and querying methods. 41806a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 41906a062dc784c609b75dca15fd97f468d0d846596Chris Lattner 42076edd0e4ae0592a7225d50d0bad6732ac64dca2aTed Kremenek /// getMainFileID - Returns the FileID of the main source file. 4212b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner FileID getMainFileID() const { return MainFileID; } 4221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42306a062dc784c609b75dca15fd97f468d0d846596Chris Lattner /// createMainFileID - Create the FileID for the main source file. 42406a062dc784c609b75dca15fd97f468d0d846596Chris Lattner FileID createMainFileID(const FileEntry *SourceFile, 42506a062dc784c609b75dca15fd97f468d0d846596Chris Lattner SourceLocation IncludePos) { 42606a062dc784c609b75dca15fd97f468d0d846596Chris Lattner assert(MainFileID.isInvalid() && "MainFileID already set!"); 42706a062dc784c609b75dca15fd97f468d0d846596Chris Lattner MainFileID = createFileID(SourceFile, IncludePos, SrcMgr::C_User); 42806a062dc784c609b75dca15fd97f468d0d846596Chris Lattner return MainFileID; 42906a062dc784c609b75dca15fd97f468d0d846596Chris Lattner } 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43106a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 432de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // Methods to create new FileID's and instantiations. 43306a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// createFileID - Create a new FileID that represents the specified file 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// being #included from the specified IncludePosition. This returns 0 on 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// error and translates NULL into standard input. 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// PreallocateID should be non-zero to specify which a pre-allocated, 4397f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// lazily computed source location is being filled in by this operation. 4402b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner FileID createFileID(const FileEntry *SourceFile, SourceLocation IncludePos, 4417f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor SrcMgr::CharacteristicKind FileCharacter, 4427f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned PreallocatedID = 0, 4437f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned Offset = 0) { 444de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const SrcMgr::ContentCache *IR = getOrCreateContentCache(SourceFile); 4452b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner if (IR == 0) return FileID(); // Error opening file? 4467f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor return createFileID(IR, IncludePos, FileCharacter, PreallocatedID, Offset); 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// createFileIDForMemBuffer - Create a new FileID that represents the 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// specified memory buffer. This does no caching of the buffer and takes 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ownership of the MemoryBuffer, so only pass a MemoryBuffer to this once. 4527f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor FileID createFileIDForMemBuffer(const llvm::MemoryBuffer *Buffer, 4537f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned PreallocatedID = 0, 4547f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned Offset = 0) { 4557bfaaaecb3113f955db31e8d8a51acffd1bc0c27Nico Weber return createFileID(createMemBufferContentCache(Buffer), SourceLocation(), 4567f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor SrcMgr::C_User, PreallocatedID, Offset); 4575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4591036b68525f39cb69ac22c679ed440acd8392a16Ted Kremenek /// createMainFileIDForMembuffer - Create the FileID for a memory buffer 4601036b68525f39cb69ac22c679ed440acd8392a16Ted Kremenek /// that will represent the FileID for the main source. One example 4611036b68525f39cb69ac22c679ed440acd8392a16Ted Kremenek /// of when this would be used is when the main source is read from STDIN. 4622b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner FileID createMainFileIDForMemBuffer(const llvm::MemoryBuffer *Buffer) { 4632b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner assert(MainFileID.isInvalid() && "MainFileID already set!"); 4647697b5c5a918729718da9ecd9e374bbd973a69e9Chris Lattner MainFileID = createFileIDForMemBuffer(Buffer); 4651036b68525f39cb69ac22c679ed440acd8392a16Ted Kremenek return MainFileID; 4661036b68525f39cb69ac22c679ed440acd8392a16Ted Kremenek } 46706a062dc784c609b75dca15fd97f468d0d846596Chris Lattner 468de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// createInstantiationLoc - Return a new SourceLocation that encodes the fact 469de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// that a token at Loc should actually be referenced from InstantiationLoc. 470de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// TokLength is the length of the token being instantiated. 471de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SourceLocation createInstantiationLoc(SourceLocation Loc, 472e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner SourceLocation InstantiationLocStart, 473e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner SourceLocation InstantiationLocEnd, 4747f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned TokLength, 4757f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned PreallocatedID = 0, 4767f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned Offset = 0); 4771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4782968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// \brief Retrieve the memory buffer associated with the given file. 47950f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor /// 48050f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor /// \param Invalid If non-NULL, will be set \c true if an error 48150f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor /// occurs while retrieving the memory buffer. 48250f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor const llvm::MemoryBuffer *getMemoryBufferForFile(const FileEntry *File, 48350f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor bool *Invalid = 0); 4842968442603b029949246467253eeac8139a5b6d8Douglas Gregor 4852968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// \brief Override the contents of the given source file by providing an 4862968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// already-allocated buffer. 4872968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// 4882968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// \param SourceFile the source file whose contents will be override. 4892968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// 4902968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// \param Buffer the memory buffer whose contents will be used as the 4912968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// data in the given source file. 4922968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// 4932968442603b029949246467253eeac8139a5b6d8Douglas Gregor /// \returns true if an error occurred, false otherwise. 4942968442603b029949246467253eeac8139a5b6d8Douglas Gregor bool overrideFileContents(const FileEntry *SourceFile, 4952968442603b029949246467253eeac8139a5b6d8Douglas Gregor const llvm::MemoryBuffer *Buffer); 4962968442603b029949246467253eeac8139a5b6d8Douglas Gregor 49706a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 49806a062dc784c609b75dca15fd97f468d0d846596Chris Lattner // FileID manipulation methods. 49906a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 5001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5012ffb14f004affc363d86d6c7c63c356190db3679Daniel Dunbar /// getBuffer - Return the buffer for the specified FileID. If there is an 5022ffb14f004affc363d86d6c7c63c356190db3679Daniel Dunbar /// error opening this buffer the first time, this manufactures a temporary 5032ffb14f004affc363d86d6c7c63c356190db3679Daniel Dunbar /// buffer and returns a non-empty error string. 504e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner const llvm::MemoryBuffer *getBuffer(FileID FID, SourceLocation Loc, 505e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner bool *Invalid = 0) const { 506e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner return getSLocEntry(FID).getFile().getContentCache() 507e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner ->getBuffer(Diag, *this, Loc, Invalid); 50806a062dc784c609b75dca15fd97f468d0d846596Chris Lattner } 5091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 510e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner const llvm::MemoryBuffer *getBuffer(FileID FID, bool *Invalid = 0) const { 511e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner return getSLocEntry(FID).getFile().getContentCache() 512e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner ->getBuffer(Diag, *this, SourceLocation(), Invalid); 513e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner } 514e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner 51506a062dc784c609b75dca15fd97f468d0d846596Chris Lattner /// getFileEntryForID - Returns the FileEntry record for the provided FileID. 51606a062dc784c609b75dca15fd97f468d0d846596Chris Lattner const FileEntry *getFileEntryForID(FileID FID) const { 517de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return getSLocEntry(FID).getFile().getContentCache()->Entry; 51806a062dc784c609b75dca15fd97f468d0d846596Chris Lattner } 5191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 520ceafc4b63599d14f0b5b10ff92e22bf242682dceBenjamin Kramer /// getBufferData - Return a StringRef to the source buffer data for the 521ceafc4b63599d14f0b5b10ff92e22bf242682dceBenjamin Kramer /// specified FileID. 522ceafc4b63599d14f0b5b10ff92e22bf242682dceBenjamin Kramer /// 523f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor /// \param FID The file ID whose contents will be returned. 524f715ca12bfc9fddfde75f98a197424434428b821Douglas Gregor /// \param Invalid If non-NULL, will be set true if an error occurred. 525f6ac97b101c8840efa92bf29166077ce4049e293Benjamin Kramer llvm::StringRef getBufferData(FileID FID, bool *Invalid = 0) const; 526f6ac97b101c8840efa92bf29166077ce4049e293Benjamin Kramer 5271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 52806a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 52906a062dc784c609b75dca15fd97f468d0d846596Chris Lattner // SourceLocation manipulation methods. 53006a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 5311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 532668ab1a36d6a5731c71a75a5f388ecafd538a896Chris Lattner /// getFileID - Return the FileID for a SourceLocation. This is a very 533de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// hot method that is used for all SourceManager queries that start with a 534de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// SourceLocation object. It is responsible for finding the entry in 535de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// SLocEntryTable which contains the specified location. 536de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// 537de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileID getFileID(SourceLocation SpellingLoc) const { 538de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned SLocOffset = SpellingLoc.getOffset(); 5391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 540de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // If our one-entry cache covers this offset, just return it. 541de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (isOffsetInFileID(LastFileIDLookup, SLocOffset)) 542de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return LastFileIDLookup; 543de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner 544de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return getFileIDSlow(SLocOffset); 545de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 5461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5472b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner /// getLocForStartOfFile - Return the source location corresponding to the 5482b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner /// first byte of the specified file. 5492b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner SourceLocation getLocForStartOfFile(FileID FID) const { 5507f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor assert(FID.ID < SLocEntryTable.size() && "FileID out of range"); 5517f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor assert(getSLocEntry(FID).isFile() && "FileID is not a file"); 5527f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned FileOffset = getSLocEntry(FID).getOffset(); 553de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return SourceLocation::getFileLoc(FileOffset); 5542b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner } 5551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5566678133b8ce642f93e5141f056fa643112041ad0Chris Lattner /// getInstantiationLoc - Given a SourceLocation object, return the 5576678133b8ce642f93e5141f056fa643112041ad0Chris Lattner /// instantiation location referenced by the ID. 558de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SourceLocation getInstantiationLoc(SourceLocation Loc) const { 559addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner // Handle the non-mapped case inline, defer to out of line code to handle 560addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner // instantiations. 561de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (Loc.isFileID()) return Loc; 562addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner return getInstantiationLocSlowCase(Loc); 563de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 5641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 565e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// getImmediateInstantiationRange - Loc is required to be an instantiation 566e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner /// location. Return the start/end of the instantiation information. 567e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner std::pair<SourceLocation,SourceLocation> 568e7fb48466afcbf2c4ccdfa658824282fdc3c512cChris Lattner getImmediateInstantiationRange(SourceLocation Loc) const; 5691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5706678133b8ce642f93e5141f056fa643112041ad0Chris Lattner /// getInstantiationRange - Given a SourceLocation object, return the 5716678133b8ce642f93e5141f056fa643112041ad0Chris Lattner /// range of tokens covered by the instantiation in the ultimate file. 5726678133b8ce642f93e5141f056fa643112041ad0Chris Lattner std::pair<SourceLocation,SourceLocation> 5736678133b8ce642f93e5141f056fa643112041ad0Chris Lattner getInstantiationRange(SourceLocation Loc) const; 5741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 576de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// getSpellingLoc - Given a SourceLocation object, return the spelling 577de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// location referenced by the ID. This is the place where the characters 578de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// that make up the lexed token can be found. 579de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner SourceLocation getSpellingLoc(SourceLocation Loc) const { 580addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner // Handle the non-mapped case inline, defer to out of line code to handle 581addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner // instantiations. 582de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (Loc.isFileID()) return Loc; 583addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner return getSpellingLocSlowCase(Loc); 584de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 5851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 586387616edf98739f4a0dd234c907e2b913e6a535dChris Lattner /// getImmediateSpellingLoc - Given a SourceLocation object, return the 587387616edf98739f4a0dd234c907e2b913e6a535dChris Lattner /// spelling location referenced by the ID. This is the first level down 588387616edf98739f4a0dd234c907e2b913e6a535dChris Lattner /// towards the place where the characters that make up the lexed token can be 589387616edf98739f4a0dd234c907e2b913e6a535dChris Lattner /// found. This should not generally be used by clients. 5901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getImmediateSpellingLoc(SourceLocation Loc) const; 591de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner 592de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// getDecomposedLoc - Decompose the specified location into a raw FileID + 593de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// Offset pair. The first element is the FileID, the second is the 594de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// offset from the start of the buffer of the location. 595de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner std::pair<FileID, unsigned> getDecomposedLoc(SourceLocation Loc) const { 596de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileID FID = getFileID(Loc); 597de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return std::make_pair(FID, Loc.getOffset()-getSLocEntry(FID).getOffset()); 598de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 5991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 600de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// getDecomposedInstantiationLoc - Decompose the specified location into a 601de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// raw FileID + Offset pair. If the location is an instantiation record, 602de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// walk through it until we find the final location instantiated. 603de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner std::pair<FileID, unsigned> 604de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner getDecomposedInstantiationLoc(SourceLocation Loc) const { 605de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileID FID = getFileID(Loc); 606de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const SrcMgr::SLocEntry *E = &getSLocEntry(FID); 6071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 608de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned Offset = Loc.getOffset()-E->getOffset(); 609de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (Loc.isFileID()) 610de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return std::make_pair(FID, Offset); 6111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 612de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return getDecomposedInstantiationLocSlowCase(E, Offset); 613de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 614de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner 615de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// getDecomposedSpellingLoc - Decompose the specified location into a raw 616de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// FileID + Offset pair. If the location is an instantiation record, walk 617de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// through it until we find its spelling record. 618de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner std::pair<FileID, unsigned> 619de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner getDecomposedSpellingLoc(SourceLocation Loc) const { 620de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileID FID = getFileID(Loc); 621de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const SrcMgr::SLocEntry *E = &getSLocEntry(FID); 6221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 623de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned Offset = Loc.getOffset()-E->getOffset(); 624de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (Loc.isFileID()) 625de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return std::make_pair(FID, Offset); 626de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return getDecomposedSpellingLocSlowCase(E, Offset); 6271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 6281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 62952c29081281955d3db9e11d10573b2d38f709099Chris Lattner /// getFileOffset - This method returns the offset from the start 63052c29081281955d3db9e11d10573b2d38f709099Chris Lattner /// of the file that the specified SourceLocation represents. This is not very 63152c29081281955d3db9e11d10573b2d38f709099Chris Lattner /// meaningful for a macro ID. 63252c29081281955d3db9e11d10573b2d38f709099Chris Lattner unsigned getFileOffset(SourceLocation SpellingLoc) const { 633de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner return getDecomposedLoc(SpellingLoc).second; 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 637de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner //===--------------------------------------------------------------------===// 638de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // Queries about the code at a SourceLocation. 639de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner //===--------------------------------------------------------------------===// 6401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getCharacterData - Return a pointer to the start of the specified location 642de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// in the appropriate spelling MemoryBuffer. 64350f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor /// 64450f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor /// \param Invalid If non-NULL, will be set \c true if an error occurs. 64550f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor const char *getCharacterData(SourceLocation SL, bool *Invalid = 0) const; 6461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6479dc1f530c086d2c16f8cba758b0f59a5bf41323aChris Lattner /// getColumnNumber - Return the column # for the specified file position. 6489dc1f530c086d2c16f8cba758b0f59a5bf41323aChris Lattner /// This is significantly cheaper to compute than the line number. This 6499dc1f530c086d2c16f8cba758b0f59a5bf41323aChris Lattner /// returns zero if the column number isn't known. This may only be called on 650f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner /// a file sloc, so you must choose a spelling or instantiation location 651f7cf85b330bedd2877e1371fb0a83e99751ae162Chris Lattner /// before calling this method. 65250f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor unsigned getColumnNumber(FileID FID, unsigned FilePos, 65350f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor bool *Invalid = 0) const; 65450f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor unsigned getSpellingColumnNumber(SourceLocation Loc, 65550f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor bool *Invalid = 0) const; 65650f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor unsigned getInstantiationColumnNumber(SourceLocation Loc, 65750f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor bool *Invalid = 0) const; 6581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 660df7c17a8d02fe09a3466786bae3e40fc3252687aChris Lattner /// getLineNumber - Given a SourceLocation, return the spelling line number 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// for the position indicated. This requires building and caching a table of 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// line offsets for the MemoryBuffer, so this is not cheap: use only when 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// about to emit a diagnostic. 66450f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor unsigned getLineNumber(FileID FID, unsigned FilePos, bool *Invalid = 0) const; 6651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 66650f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor unsigned getInstantiationLineNumber(SourceLocation Loc, 66750f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor bool *Invalid = 0) const; 66850f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor unsigned getSpellingLineNumber(SourceLocation Loc, bool *Invalid = 0) const; 6691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 670bff5c512af8ca7ac92e974e04c06ff4f820e4ee1Chris Lattner /// Return the filename or buffer identifier of the buffer the location is in. 671bff5c512af8ca7ac92e974e04c06ff4f820e4ee1Chris Lattner /// Note that this name does not respect #line directives. Use getPresumedLoc 672bff5c512af8ca7ac92e974e04c06ff4f820e4ee1Chris Lattner /// for normal clients. 67350f6af7a6d6951a63f3da7d4c5a7d3965bf73b63Douglas Gregor const char *getBufferName(SourceLocation Loc, bool *Invalid = 0) const; 6741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6756b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// getFileCharacteristic - return the file characteristic of the specified 6761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// source location, indicating whether this is a normal file, a system 6776b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// header, or an "implicit extern C" system header. 6786b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// 6796b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// This state can be modified with flags on GNU linemarker directives like: 6806b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// # 4 "foo.h" 3 6816b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// which changes all source locations in the current file after that to be 6826b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner /// considered to be from a system header. 6836b3066780bda02e3117d71a18ca2f430ed1454afChris Lattner SrcMgr::CharacteristicKind getFileCharacteristic(SourceLocation Loc) const; 6841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 685b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// getPresumedLoc - This method returns the "presumed" location of a 686b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// SourceLocation specifies. A "presumed location" can be modified by #line 687b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// or GNU line marker directives. This provides a view on the data that a 688b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// user should see in diagnostics, for example. 689b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// 690b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// Note that a presumed location is always given as the instantiation point 691b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner /// of an instantiation location, not at the spelling location. 692b9c3f966b103f7cfe8e5e60007c4c8b38f7298ebChris Lattner PresumedLoc getPresumedLoc(SourceLocation Loc) const; 6931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6949fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek /// isFromSameFile - Returns true if both SourceLocations correspond to 6959fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek /// the same file. 6969fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek bool isFromSameFile(SourceLocation Loc1, SourceLocation Loc2) const { 697a11d61793341fea195c29a0dab3fbd74f2b39a8cChris Lattner return getFileID(Loc1) == getFileID(Loc2); 6989fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek } 6991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7009fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek /// isFromMainFile - Returns true if the file of provided SourceLocation is 7019fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek /// the main file. 7029fd87b1db485e2f31d0e5687f9168b370d546847Ted Kremenek bool isFromMainFile(SourceLocation Loc) const { 703a11d61793341fea195c29a0dab3fbd74f2b39a8cChris Lattner return getFileID(Loc) == getMainFileID(); 7041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7067bfaaaecb3113f955db31e8d8a51acffd1bc0c27Nico Weber /// isInSystemHeader - Returns if a SourceLocation is in a system header. 7077bfaaaecb3113f955db31e8d8a51acffd1bc0c27Nico Weber bool isInSystemHeader(SourceLocation Loc) const { 7080b9e736308af5397f558ffc8e780c438c2fdb563Chris Lattner return getFileCharacteristic(Loc) != SrcMgr::C_User; 709721818304ac462d8c6ce05eecd02884033db78f1Chris Lattner } 7101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7110d456588acac0713a7c33063922d35a8cc8c658eChris Lattner /// isInExternCSystemHeader - Returns if a SourceLocation is in an "extern C" 7120d456588acac0713a7c33063922d35a8cc8c658eChris Lattner /// system header. 7130d456588acac0713a7c33063922d35a8cc8c658eChris Lattner bool isInExternCSystemHeader(SourceLocation Loc) const { 7140d456588acac0713a7c33063922d35a8cc8c658eChris Lattner return getFileCharacteristic(Loc) == SrcMgr::C_ExternCSystem; 7150d456588acac0713a7c33063922d35a8cc8c658eChris Lattner } 7161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 71706a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 7185b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner // Line Table Manipulation Routines 7195b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner //===--------------------------------------------------------------------===// 7201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7215b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner /// getLineTableFilenameID - Return the uniqued ID for the specified filename. 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 7235b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner unsigned getLineTableFilenameID(const char *Ptr, unsigned Len); 7241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7254c4ea17d7f991516c37a871dfa4bbe5723fa85f0Chris Lattner /// AddLineNote - Add a line note to the line table for the FileID and offset 7264c4ea17d7f991516c37a871dfa4bbe5723fa85f0Chris Lattner /// specified by Loc. If FilenameID is -1, it is considered to be 7274c4ea17d7f991516c37a871dfa4bbe5723fa85f0Chris Lattner /// unspecified. 7284c4ea17d7f991516c37a871dfa4bbe5723fa85f0Chris Lattner void AddLineNote(SourceLocation Loc, unsigned LineNo, int FilenameID); 7299d79ebac47ffde6a1cb312f4c09b66b1b9a397fbChris Lattner void AddLineNote(SourceLocation Loc, unsigned LineNo, int FilenameID, 7301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool IsFileEntry, bool IsFileExit, 7319d79ebac47ffde6a1cb312f4c09b66b1b9a397fbChris Lattner bool IsSystemHeader, bool IsExternCHeader); 732bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor 733bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor /// \brief Determine if the source manager has a line table. 734bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor bool hasLineTable() const { return LineTable != 0; } 735bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor 736bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor /// \brief Retrieve the stored line table. 737bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor LineTableInfo &getLineTable(); 738bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor 7395b9a504720fb52594ca3686e10eb6c0cfa2e7d62Chris Lattner //===--------------------------------------------------------------------===// 74006a062dc784c609b75dca15fd97f468d0d846596Chris Lattner // Other miscellaneous methods. 74106a062dc784c609b75dca15fd97f468d0d846596Chris Lattner //===--------------------------------------------------------------------===// 74210b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis 74310b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis /// \brief Get the source location for the given file:line:col triplet. 74410b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis /// 74510b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis /// If the source file is included multiple times, the source location will 74610b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis /// be based upon the first inclusion. 74710b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis SourceLocation getLocation(const FileEntry *SourceFile, 74810b46d2f0b976676d10681d73fe061b5ae409b36Argyrios Kyrtzidis unsigned Line, unsigned Col) const; 7491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7502aa03d588bd2d3c73deb662880c2244bf2e384b9Argyrios Kyrtzidis /// \brief Determines the order of 2 source locations in the translation unit. 7512aa03d588bd2d3c73deb662880c2244bf2e384b9Argyrios Kyrtzidis /// 7522aa03d588bd2d3c73deb662880c2244bf2e384b9Argyrios Kyrtzidis /// \returns true if LHS source location comes before RHS, false otherwise. 7532aa03d588bd2d3c73deb662880c2244bf2e384b9Argyrios Kyrtzidis bool isBeforeInTranslationUnit(SourceLocation LHS, SourceLocation RHS) const; 7542aa03d588bd2d3c73deb662880c2244bf2e384b9Argyrios Kyrtzidis 755c6fe32a91c7372caf09152ee31a24c4b5d24deedChris Lattner // Iterators over FileInfos. 7560d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner typedef llvm::DenseMap<const FileEntry*, SrcMgr::ContentCache*> 7570d0bf8cf58b35302312cc155287fde3e81eb25a7Chris Lattner ::const_iterator fileinfo_iterator; 758c6fe32a91c7372caf09152ee31a24c4b5d24deedChris Lattner fileinfo_iterator fileinfo_begin() const { return FileInfos.begin(); } 759c6fe32a91c7372caf09152ee31a24c4b5d24deedChris Lattner fileinfo_iterator fileinfo_end() const { return FileInfos.end(); } 760d93256e55673a17d18543397ec462416acb13792Douglas Gregor bool hasFileInfo(const FileEntry *File) const { 761d93256e55673a17d18543397ec462416acb13792Douglas Gregor return FileInfos.find(File) != FileInfos.end(); 762d93256e55673a17d18543397ec462416acb13792Douglas Gregor } 763c6fe32a91c7372caf09152ee31a24c4b5d24deedChris Lattner 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// PrintStats - Print statistics to stderr. 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void PrintStats() const; 76778d85f53b093867bbb0123f016956178eea7343eTed Kremenek 76814f79002e58556798e86168c63e48d533287eda5Douglas Gregor unsigned sloc_entry_size() const { return SLocEntryTable.size(); } 7692d684c2499bd80e28451c1db0e2e040ef00c53bcKovarththanan Rajaratnam 77016b55a71695a33c094383295cc7b7a2080e098daTed Kremenek // FIXME: Exposing this is a little gross; what we want is a good way 77116b55a71695a33c094383295cc7b7a2080e098daTed Kremenek // to iterate the entries that were not defined in a PCH file (or 77216b55a71695a33c094383295cc7b7a2080e098daTed Kremenek // any other external source). 77316b55a71695a33c094383295cc7b7a2080e098daTed Kremenek unsigned sloc_loaded_entry_size() const { return SLocEntryLoaded.size(); } 77414f79002e58556798e86168c63e48d533287eda5Douglas Gregor 775bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor const SrcMgr::SLocEntry &getSLocEntry(unsigned ID) const { 776bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor assert(ID < SLocEntryTable.size() && "Invalid id"); 7771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ExternalSLocEntries && 778bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor ID < SLocEntryLoaded.size() && 779bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor !SLocEntryLoaded[ID]) 780bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor ExternalSLocEntries->ReadSLocEntry(ID); 781bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor return SLocEntryTable[ID]; 782bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor } 7832d684c2499bd80e28451c1db0e2e040ef00c53bcKovarththanan Rajaratnam 7842d684c2499bd80e28451c1db0e2e040ef00c53bcKovarththanan Rajaratnam const SrcMgr::SLocEntry &getSLocEntry(FileID FID) const { 785bdfe48ac80573e026595af91e541474dbf02565fDouglas Gregor return getSLocEntry(FID.ID); 786bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor } 787bd94500d3aa60092fb0f1e90f53fb0d03fa502a8Douglas Gregor 788f60e9918690fcf02974bc1ebecd42c99d561855eDouglas Gregor unsigned getNextOffset() const { return NextOffset; } 789f60e9918690fcf02974bc1ebecd42c99d561855eDouglas Gregor 7907f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// \brief Preallocate some number of source location entries, which 7917f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor /// will be loaded as needed from the given external source. 7927f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor void PreallocateSLocEntries(ExternalSLocEntrySource *Source, 7937f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned NumSLocEntries, 7947f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned NextOffset); 7957f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 7962bf1eb09f06a9792fa94dff0703f2aa2c4bace2aDouglas Gregor /// \brief Clear out any preallocated source location entries that 7972bf1eb09f06a9792fa94dff0703f2aa2c4bace2aDouglas Gregor /// haven't already been loaded. 7982bf1eb09f06a9792fa94dff0703f2aa2c4bace2aDouglas Gregor void ClearPreallocatedSLocEntries(); 7992bf1eb09f06a9792fa94dff0703f2aa2c4bace2aDouglas Gregor 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 801de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// isOffsetInFileID - Return true if the specified FileID contains the 802de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner /// specified SourceLocation offset. This is a very hot method. 803de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner inline bool isOffsetInFileID(FileID FID, unsigned SLocOffset) const { 804de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const SrcMgr::SLocEntry &Entry = getSLocEntry(FID); 805de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // If the entry is after the offset, it can't contain it. 806de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (SLocOffset < Entry.getOffset()) return false; 8071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 808de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // If this is the last entry than it does. Otherwise, the entry after it 809de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner // has to not include it. 810de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner if (FID.ID+1 == SLocEntryTable.size()) return true; 8117f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor 8127f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor return SLocOffset < getSLocEntry(FileID::get(FID.ID+1)).getOffset(); 813de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner } 8141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 81578d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// createFileID - Create a new fileID for the specified ContentCache and 81678d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// include position. This works regardless of whether the ContentCache 81778d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// corresponds to a file or some other input source. 8182b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner FileID createFileID(const SrcMgr::ContentCache* File, 8192b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner SourceLocation IncludePos, 8207f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor SrcMgr::CharacteristicKind DirCharacter, 8217f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned PreallocatedID = 0, 8227f94b0b0c6791013d2f72ced9b4bedd3b23673a6Douglas Gregor unsigned Offset = 0); 8231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 824de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner const SrcMgr::ContentCache * 825de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner getOrCreateContentCache(const FileEntry *SourceFile); 826c16c208e8519476d838ad11fffc8e0ecea50550dTed Kremenek 82778d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// createMemBufferContentCache - Create a new ContentCache for the specified 82878d85f53b093867bbb0123f016956178eea7343eTed Kremenek /// memory buffer. 8291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const SrcMgr::ContentCache* 8302b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner createMemBufferContentCache(const llvm::MemoryBuffer *Buf); 8311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 832de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner FileID getFileIDSlow(unsigned SLocOffset) const; 833de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner 834addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner SourceLocation getInstantiationLocSlowCase(SourceLocation Loc) const; 835addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner SourceLocation getSpellingLocSlowCase(SourceLocation Loc) const; 836addb797ca2b5afc1a1e82fd8d5d6eb2a592e75a9Chris Lattner 837de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner std::pair<FileID, unsigned> 838de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner getDecomposedInstantiationLocSlowCase(const SrcMgr::SLocEntry *E, 8391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned Offset) const; 840de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner std::pair<FileID, unsigned> 841de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner getDecomposedSpellingLocSlowCase(const SrcMgr::SLocEntry *E, 842de7aeefc5573d669ed476d7bda7a8940d3bcadb7Chris Lattner unsigned Offset) const; 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 849