Path.cpp File Reference

#include "llvm/Support/Path.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/ScopeExit.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Config/config.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/Errc.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Signals.h"
#include <cctype>
#include <unistd.h>
#include "Unix/Path.inc"

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.
namespace	llvm::sys
namespace	llvm::sys::path
namespace	llvm::sys::fs

Enumerations
enum	FSEntity { FS_Dir , FS_File , FS_Name }

Functions
static std::error_code	createUniqueEntity (const Twine &Model, int &ResultFD, SmallVectorImpl< char > &ResultPath, bool MakeAbsolute, FSEntity Type, sys::fs::OpenFlags Flags=sys::fs::OF_None, unsigned Mode=0)
static bool	llvm::sys::path::starts_with (StringRef Path, StringRef Prefix, Style style=Style::native)
static std::error_code	llvm::sys::fs::createTemporaryFile (const Twine &Model, int &ResultFD, llvm::SmallVectorImpl< char > &ResultPath, FSEntity Type, sys::fs::OpenFlags Flags=sys::fs::OF_None)
static std::error_code	llvm::sys::fs::createTemporaryFile (const Twine &Prefix, StringRef Suffix, int &ResultFD, llvm::SmallVectorImpl< char > &ResultPath, FSEntity Type, sys::fs::OpenFlags Flags=sys::fs::OF_None)
static std::error_code	llvm::sys::fs::copy_file_internal (int ReadFD, int WriteFD)
Lexical Component Iterator
const_iterator	llvm::sys::path::begin (StringRef path, Style style=Style::native)
	Get begin iterator over path.
const_iterator	llvm::sys::path::end (StringRef path)
	Get end iterator over path.
reverse_iterator	llvm::sys::path::rbegin (StringRef path, Style style=Style::native)
	Get reverse begin iterator over path.
reverse_iterator	llvm::sys::path::rend (StringRef path)
	Get reverse end iterator over path.
Lexical Observers
StringRef	llvm::sys::path::root_path (StringRef path, Style style=Style::native)
	Get root path.
StringRef	llvm::sys::path::root_name (StringRef path, Style style=Style::native)
	Get root name.
StringRef	llvm::sys::path::root_directory (StringRef path, Style style=Style::native)
	Get root directory.
StringRef	llvm::sys::path::relative_path (StringRef path, Style style=Style::native)
	Get relative path.
StringRef	llvm::sys::path::parent_path (StringRef path, Style style=Style::native)
	Get parent path.
StringRef	llvm::sys::path::filename (StringRef path, Style style=Style::native)
	Get filename.
StringRef	llvm::sys::path::stem (StringRef path, Style style=Style::native)
	Get stem.
StringRef	llvm::sys::path::extension (StringRef path, Style style=Style::native)
	Get extension.
bool	llvm::sys::path::is_separator (char value, Style style=Style::native)
	Check whether the given char is a path separator on the host OS.
StringRef	llvm::sys::path::get_separator (Style style=Style::native)
	Return the preferred separator for this platform.
bool	llvm::sys::path::has_root_name (const Twine &path, Style style=Style::native)
	Has root name?
bool	llvm::sys::path::has_root_directory (const Twine &path, Style style=Style::native)
	Has root directory?
bool	llvm::sys::path::has_root_path (const Twine &path, Style style=Style::native)
	Has root path?
bool	llvm::sys::path::has_relative_path (const Twine &path, Style style=Style::native)
	Has relative path?
bool	llvm::sys::path::has_filename (const Twine &path, Style style=Style::native)
	Has filename?
bool	llvm::sys::path::has_parent_path (const Twine &path, Style style=Style::native)
	Has parent path?
bool	llvm::sys::path::has_stem (const Twine &path, Style style=Style::native)
	Has stem?
bool	llvm::sys::path::has_extension (const Twine &path, Style style=Style::native)
	Has extension?
bool	llvm::sys::path::is_absolute (const Twine &path, Style style=Style::native)
	Is path absolute?
bool	llvm::sys::path::is_absolute_gnu (const Twine &path, Style style=Style::native)
	Is path absolute using GNU rules?
bool	llvm::sys::path::is_relative (const Twine &path, Style style=Style::native)
	Is path relative?
Lexical Modifiers
void	llvm::sys::path::append (SmallVectorImpl< char > &path, Style style, const Twine &a, const Twine &b="", const Twine &c="", const Twine &d="")
void	llvm::sys::path::append (SmallVectorImpl< char > &path, const Twine &a, const Twine &b="", const Twine &c="", const Twine &d="")
	Append to path.
void	llvm::sys::path::append (SmallVectorImpl< char > &path, const_iterator begin, const_iterator end, Style style=Style::native)
	Append to path.
void	llvm::sys::path::remove_filename (SmallVectorImpl< char > &path, Style style=Style::native)
	Remove the last component from path unless it is the root dir.
void	llvm::sys::path::replace_extension (SmallVectorImpl< char > &path, const Twine &extension, Style style=Style::native)
	Replace the file extension of path with extension.
bool	llvm::sys::path::replace_path_prefix (SmallVectorImpl< char > &Path, StringRef OldPrefix, StringRef NewPrefix, Style style=Style::native)
	Replace matching path prefix with another path.
StringRef	llvm::sys::path::remove_leading_dotslash (StringRef path, Style style=Style::native)
	Remove redundant leading "./" pieces and consecutive separators.
bool	llvm::sys::path::remove_dots (SmallVectorImpl< char > &path, bool remove_dot_dot=false, Style style=Style::native)
	In-place remove any '.
Transforms (or some other better name)
void	llvm::sys::path::native (const Twine &path, SmallVectorImpl< char > &result, Style style=Style::native)
	Convert path to the native form.
void	llvm::sys::path::native (SmallVectorImpl< char > &path, Style style=Style::native)
	Convert path to the native form in place.
std::string	llvm::sys::path::convert_to_slash (StringRef path, Style style=Style::native)
	Replaces backslashes with slashes if Windows.
Physical Observers
std::error_code	llvm::sys::fs::getUniqueID (const Twine Path, UniqueID &Result)
void	llvm::sys::fs::createUniquePath (const Twine &Model, SmallVectorImpl< char > &ResultPath, bool MakeAbsolute)
	Create a potentially unique file name but does not create it.
std::error_code	llvm::sys::fs::createUniqueFile (const Twine &Model, int &ResultFD, SmallVectorImpl< char > &ResultPath, OpenFlags Flags=OF_None, unsigned Mode=all_read|all_write)
	Create a uniquely named file.
std::error_code	llvm::sys::fs::createUniqueFile (const Twine &Model, SmallVectorImpl< char > &ResultPath, unsigned Mode=all_read|all_write)
	Simpler version for clients that don't want an open file.
std::error_code	llvm::sys::fs::createTemporaryFile (const Twine &Prefix, StringRef Suffix, int &ResultFD, SmallVectorImpl< char > &ResultPath, OpenFlags Flags=OF_None)
	Create a file in the system temporary directory.
std::error_code	llvm::sys::fs::createTemporaryFile (const Twine &Prefix, StringRef Suffix, SmallVectorImpl< char > &ResultPath, OpenFlags Flags=OF_None)
	Simpler version for clients that don't want an open file.
std::error_code	llvm::sys::fs::createUniqueDirectory (const Twine &Prefix, SmallVectorImpl< char > &ResultPath)
std::error_code	llvm::sys::fs::getPotentiallyUniqueFileName (const Twine &Model, SmallVectorImpl< char > &ResultPath)
	Get a unique name, not currently exisiting in the filesystem.
std::error_code	llvm::sys::fs::getPotentiallyUniqueTempFileName (const Twine &Prefix, StringRef Suffix, SmallVectorImpl< char > &ResultPath)
	Get a unique temporary file name, not currently exisiting in the filesystem.
bool	llvm::sys::fs::exists (const basic_file_status &status)
	Does file exist?
bool	llvm::sys::fs::status_known (const basic_file_status &s)
	Is status available?
file_type	llvm::sys::fs::get_file_type (const Twine &Path, bool Follow=true)
	Does status represent a directory?
bool	llvm::sys::fs::is_directory (const basic_file_status &status)
	Does status represent a directory?
std::error_code	llvm::sys::fs::is_directory (const Twine &path, bool &result)
	Is path a directory?
bool	llvm::sys::fs::is_regular_file (const basic_file_status &status)
	Does status represent a regular file?
std::error_code	llvm::sys::fs::is_regular_file (const Twine &path, bool &result)
	Is path a regular file?
bool	llvm::sys::fs::is_symlink_file (const basic_file_status &status)
	Does status represent a symlink file?
std::error_code	llvm::sys::fs::is_symlink_file (const Twine &path, bool &result)
	Is path a symlink file?
bool	llvm::sys::fs::is_other (const basic_file_status &status)
	Does this status represent something that exists but is not a directory or regular file?
std::error_code	llvm::sys::fs::is_other (const Twine &path, bool &result)
	Is path something that exists but is not a directory, regular file, or symlink?
ErrorOr< perms >	llvm::sys::fs::getPermissions (const Twine &Path)
	Get file permissions.
Error	llvm::sys::fs::readNativeFileToEOF (file_t FileHandle, SmallVectorImpl< char > &Buffer, ssize_t ChunkSize=DefaultReadChunkSize)
	Reads from FileHandle until EOF, appending to Buffer in chunks of size ChunkSize.
Physical Operators
void	llvm::sys::fs::make_absolute (const Twine &current_directory, SmallVectorImpl< char > &path)
	Make path an absolute path.
std::error_code	llvm::sys::fs::make_absolute (SmallVectorImpl< char > &path)
	Make path an absolute path.
std::error_code	llvm::sys::fs::create_directories (const Twine &path, bool IgnoreExisting=true, perms Perms=owner_all|group_all)
	Create all the non-existent directories in path.
std::error_code	llvm::sys::fs::copy_file (const Twine &From, const Twine &To)
	Copy the contents of From to To.
std::error_code	llvm::sys::fs::copy_file (const Twine &From, int ToFD)
	Copy the contents of From to To.
ErrorOr< MD5::MD5Result >	llvm::sys::fs::md5_contents (int FD)
	Compute an MD5 hash of a file's contents.
ErrorOr< MD5::MD5Result >	llvm::sys::fs::md5_contents (const Twine &Path)
	Version of compute_md5 that doesn't require an open file descriptor.

Enumeration Type Documentation

FSEntity

enum FSEntity

Enumerator
FS_Dir
FS_File
FS_Name

Definition at line 164 of file Path.cpp.

Function Documentation

createUniqueEntity()

static std::error_code createUniqueEntity ( const Twine &  Model, int &  ResultFD, SmallVectorImpl< char > &  ResultPath, bool  MakeAbsolute, FSEntity  Type, sys::fs::OpenFlags  Flags = sys::fs::OF_None, unsigned  Mode = 0  )

static

Definition at line 171 of file Path.cpp.

References llvm::sys::fs::access(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::sys::fs::CD_CreateNew, llvm::sys::fs::create_directory(), llvm::sys::fs::createUniquePath(), FS_Dir, FS_File, FS_Name, llvm_unreachable, and llvm::sys::fs::openFileForReadWrite().

Referenced by llvm::sys::fs::createTemporaryFile(), llvm::sys::fs::createUniqueDirectory(), llvm::sys::fs::createUniqueFile(), and llvm::sys::fs::getPotentiallyUniqueFileName().