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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // FilePath is a container for pathnames stored in a platform's native string | 5 // FilePath is a container for pathnames stored in a platform's native string |
| 6 // type, providing containers for manipulation in according with the | 6 // type, providing containers for manipulation in according with the |
| 7 // platform's conventions for pathnames. It supports the following path | 7 // platform's conventions for pathnames. It supports the following path |
| 8 // types: | 8 // types: |
| 9 // | 9 // |
| 10 // POSIX Windows | 10 // POSIX Windows |
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| 112 #include "base/compiler_specific.h" | 112 #include "base/compiler_specific.h" |
| 113 #include "base/containers/hash_tables.h" | 113 #include "base/containers/hash_tables.h" |
| 114 #include "base/strings/string16.h" | 114 #include "base/strings/string16.h" |
| 115 #include "base/strings/string_piece.h" // For implicit conversions. | 115 #include "base/strings/string_piece.h" // For implicit conversions. |
| 116 #include "build/build_config.h" | 116 #include "build/build_config.h" |
| 117 | 117 |
| 118 // Windows-style drive letter support and pathname separator characters can be | 118 // Windows-style drive letter support and pathname separator characters can be |
| 119 // enabled and disabled independently, to aid testing. These #defines are | 119 // enabled and disabled independently, to aid testing. These #defines are |
| 120 // here so that the same setting can be used in both the implementation and | 120 // here so that the same setting can be used in both the implementation and |
| 121 // in the unit test. | 121 // in the unit test. |
| 122 #if defined(OS_WIN) | |
| 123 #define FILE_PATH_USES_DRIVE_LETTERS | |
| 124 #define FILE_PATH_USES_WIN_SEPARATORS | |
| 125 #endif // OS_WIN | |
| 126 | 122 |
| 127 namespace base { | 123 namespace base { |
| 128 | 124 |
| 129 class Pickle; | 125 class Pickle; |
| 130 class PickleIterator; | 126 class PickleIterator; |
| 131 | 127 |
| 132 // An abstraction to isolate users from the differences between native | 128 // An abstraction to isolate users from the differences between native |
| 133 // pathnames on different platforms. | 129 // pathnames on different platforms. |
| 134 class BASE_EXPORT FilePath { | 130 class BASE_EXPORT FilePath { |
| 135 public: | 131 public: |
| 136 #if defined(OS_POSIX) | 132 #if defined(OS_POSIX) |
| 137 // On most platforms, native pathnames are char arrays, and the encoding | 133 // On most platforms, native pathnames are char arrays, and the encoding |
| 138 // may or may not be specified. On Mac OS X, native pathnames are encoded | 134 // may or may not be specified. On Mac OS X, native pathnames are encoded |
| 139 // in UTF-8. | 135 // in UTF-8. |
| 140 typedef std::string StringType; | 136 typedef std::string StringType; |
| 141 #elif defined(OS_WIN) | 137 #endif // OS_POSIX |
| 142 // On Windows, for Unicode-aware applications, native pathnames are wchar_t | |
| 143 // arrays encoded in UTF-16. | |
| 144 typedef std::wstring StringType; | |
| 145 #endif // OS_WIN | |
| 146 | 138 |
| 147 typedef StringType::value_type CharType; | 139 typedef StringType::value_type CharType; |
| 148 | 140 |
| 149 // Null-terminated array of separators used to separate components in | 141 // Null-terminated array of separators used to separate components in |
| 150 // hierarchical paths. Each character in this array is a valid separator, | 142 // hierarchical paths. Each character in this array is a valid separator, |
| 151 // but kSeparators[0] is treated as the canonical separator and will be used | 143 // but kSeparators[0] is treated as the canonical separator and will be used |
| 152 // when composing pathnames. | 144 // when composing pathnames. |
| 153 static const CharType kSeparators[]; | 145 static const CharType kSeparators[]; |
| 154 | 146 |
| 155 // arraysize(kSeparators). | 147 // arraysize(kSeparators). |
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| 441 // This should not be used in production code - call ToString() instead. | 433 // This should not be used in production code - call ToString() instead. |
| 442 void PrintTo(const FilePath& path, std::ostream* out); | 434 void PrintTo(const FilePath& path, std::ostream* out); |
| 443 | 435 |
| 444 } // namespace base | 436 } // namespace base |
| 445 | 437 |
| 446 // Macros for string literal initialization of FilePath::CharType[], and for | 438 // Macros for string literal initialization of FilePath::CharType[], and for |
| 447 // using a FilePath::CharType[] in a printf-style format string. | 439 // using a FilePath::CharType[] in a printf-style format string. |
| 448 #if defined(OS_POSIX) | 440 #if defined(OS_POSIX) |
| 449 #define FILE_PATH_LITERAL(x) x | 441 #define FILE_PATH_LITERAL(x) x |
| 450 #define PRFilePath "s" | 442 #define PRFilePath "s" |
| 451 #elif defined(OS_WIN) | 443 #endif // OS_POSIX |
| 452 #define FILE_PATH_LITERAL(x) L ## x | |
| 453 #define PRFilePath "ls" | |
| 454 #endif // OS_WIN | |
| 455 | 444 |
| 456 // Provide a hash function so that hash_sets and maps can contain FilePath | 445 // Provide a hash function so that hash_sets and maps can contain FilePath |
| 457 // objects. | 446 // objects. |
| 458 namespace BASE_HASH_NAMESPACE { | 447 namespace BASE_HASH_NAMESPACE { |
| 459 | 448 |
| 460 template<> | 449 template<> |
| 461 struct hash<base::FilePath> { | 450 struct hash<base::FilePath> { |
| 462 size_t operator()(const base::FilePath& f) const { | 451 size_t operator()(const base::FilePath& f) const { |
| 463 return hash<base::FilePath::StringType>()(f.value()); | 452 return hash<base::FilePath::StringType>()(f.value()); |
| 464 } | 453 } |
| 465 }; | 454 }; |
| 466 | 455 |
| 467 } // namespace BASE_HASH_NAMESPACE | 456 } // namespace BASE_HASH_NAMESPACE |
| 468 | 457 |
| 469 #endif // BASE_FILES_FILE_PATH_H_ | 458 #endif // BASE_FILES_FILE_PATH_H_ |
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