The Tor Browser / file comparison
comparison: xpcom/string/public/nsTSubstringTuple.h
xpcom/string/public/nsTSubstringTuple.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:970b12548087 |
|---|---|
| 1 //* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 // IWYU pragma: private, include "nsString.h" | |
| 7 | |
| 8 /** | |
| 9 * nsTSubstringTuple_CharT | |
| 10 * | |
| 11 * Represents a tuple of string fragments. Built as a recursive binary tree. | |
| 12 * It is used to implement the concatenation of two or more string objects. | |
| 13 * | |
| 14 * NOTE: This class is a private implementation detail and should never be | |
| 15 * referenced outside the string code. | |
| 16 */ | |
| 17 class nsTSubstringTuple_CharT | |
| 18 { | |
| 19 public: | |
| 20 | |
| 21 typedef CharT char_type; | |
| 22 typedef nsCharTraits<char_type> char_traits; | |
| 23 | |
| 24 typedef nsTSubstringTuple_CharT self_type; | |
| 25 typedef nsTSubstring_CharT substring_type; | |
| 26 typedef nsTSubstring_CharT base_string_type; | |
| 27 typedef uint32_t size_type; | |
| 28 | |
| 29 public: | |
| 30 | |
| 31 nsTSubstringTuple_CharT(const base_string_type* a, const base_string_type* b) | |
| 32 : mHead(nullptr) | |
| 33 , mFragA(a) | |
| 34 , mFragB(b) {} | |
| 35 | |
| 36 nsTSubstringTuple_CharT(const self_type& head, const base_string_type* b) | |
| 37 : mHead(&head) | |
| 38 , mFragA(nullptr) // this fragment is ignored when head != nullptr | |
| 39 , mFragB(b) {} | |
| 40 | |
| 41 /** | |
| 42 * computes the aggregate string length | |
| 43 */ | |
| 44 size_type Length() const; | |
| 45 | |
| 46 /** | |
| 47 * writes the aggregate string to the given buffer. bufLen is assumed | |
| 48 * to be equal to or greater than the value returned by the Length() | |
| 49 * method. the string written to |buf| is not null-terminated. | |
| 50 */ | |
| 51 void WriteTo(char_type *buf, uint32_t bufLen) const; | |
| 52 | |
| 53 /** | |
| 54 * returns true if this tuple is dependent on (i.e., overlapping with) | |
| 55 * the given char sequence. | |
| 56 */ | |
| 57 bool IsDependentOn(const char_type *start, const char_type *end) const; | |
| 58 | |
| 59 private: | |
| 60 | |
| 61 const self_type* mHead; | |
| 62 const base_string_type* mFragA; | |
| 63 const base_string_type* mFragB; | |
| 64 }; | |
| 65 | |
| 66 inline | |
| 67 const nsTSubstringTuple_CharT | |
| 68 operator+(const nsTSubstringTuple_CharT::base_string_type& a, const nsTSubstringTuple_CharT::base_string_type& b) | |
| 69 { | |
| 70 return nsTSubstringTuple_CharT(&a, &b); | |
| 71 } | |
| 72 | |
| 73 inline | |
| 74 const nsTSubstringTuple_CharT | |
| 75 operator+(const nsTSubstringTuple_CharT& head, const nsTSubstringTuple_CharT::base_string_type& b) | |
| 76 { | |
| 77 return nsTSubstringTuple_CharT(head, &b); | |
| 78 } |
