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-rw-r--r--lib/Basic/SourceManager.cpp55
1 files changed, 30 insertions, 25 deletions
diff --git a/lib/Basic/SourceManager.cpp b/lib/Basic/SourceManager.cpp
index 620f05c637..e664879639 100644
--- a/lib/Basic/SourceManager.cpp
+++ b/lib/Basic/SourceManager.cpp
@@ -1,4 +1,4 @@
-//===--- SourceManager.cpp - Track and cache source files -----------------===//
+//===- SourceManager.cpp - Track and cache source files -------------------===//
//
// The LLVM Compiler Infrastructure
//
@@ -14,17 +14,33 @@
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManagerInternals.h"
+#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/None.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Allocator.h"
#include "llvm/Support/Capacity.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
-#include <cstring>
+#include <cassert>
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+#include <tuple>
+#include <utility>
+#include <vector>
using namespace clang;
using namespace SrcMgr;
@@ -222,7 +238,6 @@ void LineTableInfo::AddLineNote(FileID FID, unsigned Offset, unsigned LineNo,
IncludeOffset));
}
-
/// FindNearestLineEntry - Find the line entry nearest to FID that is before
/// it. If there is no line entry before Offset in FID, return null.
const LineEntry *LineTableInfo::FindNearestLineEntry(FileID FID,
@@ -250,7 +265,6 @@ void LineTableInfo::AddEntry(FileID FID,
}
/// getLineTableFilenameID - Return the uniqued ID for the specified filename.
-///
unsigned SourceManager::getLineTableFilenameID(StringRef Name) {
return getLineTable().getLineTableFilenameID(Name);
}
@@ -298,10 +312,7 @@ LineTableInfo &SourceManager::getLineTable() {
SourceManager::SourceManager(DiagnosticsEngine &Diag, FileManager &FileMgr,
bool UserFilesAreVolatile)
- : Diag(Diag), FileMgr(FileMgr), OverridenFilesKeepOriginalName(true),
- UserFilesAreVolatile(UserFilesAreVolatile), FilesAreTransient(false),
- ExternalSLocEntries(nullptr), LineTable(nullptr), NumLinearScans(0),
- NumBinaryProbes(0) {
+ : Diag(Diag), FileMgr(FileMgr), UserFilesAreVolatile(UserFilesAreVolatile) {
clearIDTables();
Diag.setSourceManager(this);
}
@@ -342,7 +353,7 @@ void SourceManager::clearIDTables() {
// Use up FileID #0 as an invalid expansion.
NextLocalOffset = 0;
CurrentLoadedOffset = MaxLoadedOffset;
- createExpansionLoc(SourceLocation(),SourceLocation(),SourceLocation(), 1);
+ createExpansionLoc(SourceLocation(), SourceLocation(), SourceLocation(), 1);
}
void SourceManager::initializeForReplay(const SourceManager &Old) {
@@ -408,7 +419,6 @@ SourceManager::getOrCreateContentCache(const FileEntry *FileEnt,
return Entry;
}
-
/// Create a new ContentCache for the specified memory buffer.
/// This does no caching.
const ContentCache *
@@ -716,7 +726,7 @@ FileID SourceManager::getFileIDLocal(unsigned SLocOffset) const {
// Find the FileID that contains this. "I" is an iterator that points to a
// FileID whose offset is known to be larger than SLocOffset.
unsigned NumProbes = 0;
- while (1) {
+ while (true) {
--I;
if (I->getOffset() <= SLocOffset) {
FileID Res = FileID::get(int(I - LocalSLocEntryTable.begin()));
@@ -740,7 +750,7 @@ FileID SourceManager::getFileIDLocal(unsigned SLocOffset) const {
// SLocOffset.
unsigned LessIndex = 0;
NumProbes = 0;
- while (1) {
+ while (true) {
bool Invalid = false;
unsigned MiddleIndex = (GreaterIndex-LessIndex)/2+LessIndex;
unsigned MidOffset = getLocalSLocEntry(MiddleIndex, &Invalid).getOffset();
@@ -817,7 +827,7 @@ FileID SourceManager::getFileIDLoaded(unsigned SLocOffset) const {
unsigned GreaterIndex = I;
unsigned LessIndex = LoadedSLocEntryTable.size();
NumProbes = 0;
- while (1) {
+ while (true) {
++NumProbes;
unsigned MiddleIndex = (LessIndex - GreaterIndex) / 2 + GreaterIndex;
const SrcMgr::SLocEntry &E = getLoadedSLocEntry(MiddleIndex);
@@ -935,7 +945,6 @@ SourceLocation SourceManager::getImmediateSpellingLoc(SourceLocation Loc) const{
return Loc.getLocWithOffset(LocInfo.second);
}
-
/// getImmediateExpansionRange - Loc is required to be an expansion location.
/// Return the start/end of the expansion information.
std::pair<SourceLocation,SourceLocation>
@@ -1055,7 +1064,6 @@ bool SourceManager::isAtEndOfImmediateMacroExpansion(SourceLocation Loc,
return true;
}
-
//===----------------------------------------------------------------------===//
// Queries about the code at a SourceLocation.
//===----------------------------------------------------------------------===//
@@ -1084,7 +1092,6 @@ const char *SourceManager::getCharacterData(SourceLocation SL,
return Buffer->getBufferStart() + (CharDataInvalid? 0 : LocInfo.second);
}
-
/// getColumnNumber - Return the column # for the specified file position.
/// this is significantly cheaper to compute than the line number.
unsigned SourceManager::getColumnNumber(FileID FID, unsigned FilePos,
@@ -1189,7 +1196,7 @@ static void ComputeLineNumbers(DiagnosticsEngine &Diag, ContentCache *FI,
const unsigned char *Buf = (const unsigned char *)Buffer->getBufferStart();
const unsigned char *End = (const unsigned char *)Buffer->getBufferEnd();
unsigned Offs = 0;
- while (1) {
+ while (true) {
// Skip over the contents of the line.
const unsigned char *NextBuf = (const unsigned char *)Buf;
@@ -1419,7 +1426,6 @@ StringRef SourceManager::getBufferName(SourceLocation Loc,
return getBuffer(getFileID(Loc), Invalid)->getBufferIdentifier();
}
-
/// getPresumedLoc - This method returns the "presumed" location of a
/// SourceLocation specifies. A "presumed location" can be modified by \#line
/// or GNU line marker directives. This provides a view on the data that a
@@ -1767,7 +1773,7 @@ void SourceManager::computeMacroArgsCache(MacroArgsMap &MacroArgsCache,
MacroArgsCache.insert(std::make_pair(0, SourceLocation()));
int ID = FID.ID;
- while (1) {
+ while (true) {
++ID;
// Stop if there are no more FileIDs to check.
if (ID > 0) {
@@ -1830,7 +1836,7 @@ void SourceManager::associateFileChunkWithMacroArgExp(
FileID SpellFID; // Current FileID in the spelling range.
unsigned SpellRelativeOffs;
std::tie(SpellFID, SpellRelativeOffs) = getDecomposedLoc(SpellLoc);
- while (1) {
+ while (true) {
const SLocEntry &Entry = getSLocEntry(SpellFID);
unsigned SpellFIDBeginOffs = Entry.getOffset();
unsigned SpellFIDSize = getFileIDSize(SpellFID);
@@ -1857,7 +1863,6 @@ void SourceManager::associateFileChunkWithMacroArgExp(
++SpellFID.ID;
SpellRelativeOffs = 0;
}
-
}
assert(SpellLoc.isFileID());
@@ -1937,8 +1942,8 @@ SourceManager::getDecomposedIncludedLoc(FileID FID) const {
// Uses IncludedLocMap to retrieve/cache the decomposed loc.
- typedef std::pair<FileID, unsigned> DecompTy;
- typedef llvm::DenseMap<FileID, DecompTy> MapTy;
+ using DecompTy = std::pair<FileID, unsigned>;
+ using MapTy = llvm::DenseMap<FileID, DecompTy>;
std::pair<MapTy::iterator, bool>
InsertOp = IncludedLocMap.insert(std::make_pair(FID, DecompTy()));
DecompTy &DecompLoc = InsertOp.first->second;
@@ -2085,7 +2090,7 @@ std::pair<bool, bool> SourceManager::isInTheSameTranslationUnit(
// of the other looking for a match.
// We use a map from FileID to Offset to store the chain. Easier than writing
// a custom set hash info that only depends on the first part of a pair.
- typedef llvm::SmallDenseMap<FileID, unsigned, 16> LocSet;
+ using LocSet = llvm::SmallDenseMap<FileID, unsigned, 16>;
LocSet LChain;
do {
LChain.insert(LOffs);
@@ -2197,7 +2202,7 @@ LLVM_DUMP_METHOD void SourceManager::dump() const {
}
}
-ExternalSLocEntrySource::~ExternalSLocEntrySource() { }
+ExternalSLocEntrySource::~ExternalSLocEntrySource() = default;
/// Return the amount of memory used by memory buffers, breaking down
/// by heap-backed versus mmap'ed memory.
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-20 03:00:44 +0000