SourceManager.h File Reference

Defines the SourceManager interface. More...

#include "clang/Basic/FileManager.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/Support/AlignOf.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/MemoryBuffer.h"
#include <cassert>
#include <map>
#include <memory>
#include <vector>

Include dependency graph for SourceManager.h:

Go to the source code of this file.

Classes
class	clang::SrcMgr::ContentCache
	One instance of this struct is kept for every file loaded or used. More...
class	clang::SrcMgr::FileInfo
	Information about a FileID, basically just the logical file that it represents and include stack information. More...
class	clang::SrcMgr::ExpansionInfo
	Each ExpansionInfo encodes the expansion location - where the token was ultimately expanded, and the SpellingLoc - where the actual character data for the token came from. More...
class	clang::SrcMgr::SLocEntry
	This is a discriminated union of FileInfo and ExpansionInfo. More...
class	clang::ExternalSLocEntrySource
	External source of source location entries. More...
class	clang::InBeforeInTUCacheEntry
	Holds the cache used by isBeforeInTranslationUnit. More...
class	clang::SourceManager
	This class handles loading and caching of source files into memory. More...
struct	clang::SourceManager::OverriddenFilesInfoTy
struct	clang::SourceManager::MemoryBufferSizes
class	clang::BeforeThanCompare< SourceLocation >
	Compare two source locations. More...
class	clang::BeforeThanCompare< SourceRange >
	Compare two non-overlapping source ranges. More...
Namespaces
namespace	clang
namespace	clang::SrcMgr
	Public enums and private classes that are part of the SourceManager implementation.
Typedefs
typedef ArrayRef< std::pair < std::string, FullSourceLoc > >	clang::ModuleBuildStack
	The stack used when building modules on demand, which is used to provide a link between the source managers of the different compiler instances.
Enumerations
enum	clang::SrcMgr::CharacteristicKind { clang::SrcMgr::C_User, clang::SrcMgr::C_System, clang::SrcMgr::C_ExternCSystem }
	Indicates whether a file or directory holds normal user code, system code, or system code which is implicitly 'extern "C"' in C++ mode. More...
Functions
	clang::SrcMgr::static_assert (llvm::AlignOf< ContentCache >::Alignment >=8,"ContentCache must be 8-byte aligned.")

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Detailed Description

Defines the SourceManager interface.

There are three different types of locations in a file: a spelling location, an expansion location, and a presumed location.

Given an example of:

 #define min(x, y) x < y ? x : y

and then later on a use of min:

 #line 17
 return min(a, b);

The expansion location is the line in the source code where the macro was expanded (the return statement), the spelling location is the location in the source where the macro was originally defined, and the presumed location is where the line directive states that the line is 17, or any other line.

Definition in file SourceManager.h.