Path.cpp revision ca0984cb8647e5eae58e384715523476e3170d50 
1//===-- Path.cpp - Implement OS Path Concept --------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//  This header file implements the operating system Path concept.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/Path.h"
15#include "llvm/Config/config.h"
16#include "llvm/Support/Endian.h"
17#include "llvm/Support/FileSystem.h"
18#include "llvm/Support/PathV1.h"
19#include <cassert>
20#include <cstring>
21#include <ostream>
22using namespace llvm;
23using namespace sys;
24namespace {
25using support::ulittle32_t;
26}
27
28//===----------------------------------------------------------------------===//
29//=== WARNING: Implementation here must contain only TRULY operating system
30//===          independent code.
31//===----------------------------------------------------------------------===//
32
33bool Path::operator==(const Path &that) const {
34  return path == that.path;
35}
36
37bool Path::operator<(const Path& that) const {
38  return path < that.path;
39}
40
41bool
42Path::isArchive() const {
43  fs::file_magic type;
44  if (fs::identify_magic(str(), type))
45    return false;
46  return type == fs::file_magic::archive;
47}
48
49bool
50Path::isDynamicLibrary() const {
51  fs::file_magic type;
52  if (fs::identify_magic(str(), type))
53    return false;
54  switch (type) {
55    default: return false;
56    case fs::file_magic::macho_fixed_virtual_memory_shared_lib:
57    case fs::file_magic::macho_dynamically_linked_shared_lib:
58    case fs::file_magic::macho_dynamically_linked_shared_lib_stub:
59    case fs::file_magic::elf_shared_object:
60    case fs::file_magic::pecoff_executable:  return true;
61  }
62}
63
64void
65Path::appendSuffix(StringRef suffix) {
66  if (!suffix.empty()) {
67    path.append(".");
68    path.append(suffix);
69  }
70}
71
72// Include the truly platform-specific parts of this class.
73#if defined(LLVM_ON_UNIX)
74#include "Unix/Path.inc"
75#endif
76#if defined(LLVM_ON_WIN32)
77#include "Windows/Path.inc"
78#endif
79